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TABLE OF CONTENTS
Item 8. Consolidated Financial Statements and Supplementary Data
PART IV

Table of Contents


UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

Form 10-K

(Mark One)    

þ

 

ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

 

 

For the fiscal year ended December 31, 2016

OR

o

 

TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

 

 

For the transition period from             to             

Commission File Number: 001-33723

Main Street Capital Corporation
(Exact name of registrant as specified in its charter)

Maryland
(State or other jurisdiction
of incorporation or organization)
  41-2230745
(I.R.S. Employer
Identification No.)

1300 Post Oak Boulevard, 8th floor
Houston, TX
(Address of principal executive offices)

 

77056
(Zip Code)

(713) 350-6000
(Registrant's telephone number, including area code)

Securities registered pursuant to Section 12(b) of the Act:

Title of Each Class
 
Name of Each Exchange on Which Registered
Common Stock, par value $0.01 per share   New York Stock Exchange
6.125% Notes due 2023   New York Stock Exchange

Securities registered pursuant to Section 12(g) of the Act:

None

       Indicate by check mark if the registrant is a well-known seasoned issuer, as defined in Rule 405 of the Securities Act.    Yes o    No þ

       Indicate by check mark if the registrant is not required to file reports pursuant to Section 13 or Section 15(d) of the Act.    Yes o    No þ

       Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days.    Yes þ    No o

       Indicate by check mark whether the registrant has submitted electronically and posted on its corporate Web site, if any, every Interactive Data File required to be submitted and posted pursuant to Rule 405 of Regulation S-T during the preceding 12 months (or for such shorter period that the registrant was required to submit and post such files).    Yes o    No o

       Indicate by check mark if disclosure of delinquent filers pursuant to Item 405 of Regulation S-K is not contained herein, and will not be contained, to the best of registrant's knowledge, in definitive proxy or information statements incorporated by reference in Part III of this Form 10-K or any amendment to this Form 10-K.    þ

       Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer or a smaller reporting company. See the definitions of "large accelerated filer," "accelerated filer" and "smaller reporting company" in Rule 12b-2 of the Exchange Act.

Large accelerated filer þ   Accelerated filer o   Non-accelerated filer o   Smaller reporting company o
    (Do not check if a smaller reporting company)

       Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act).    Yes o    No þ

       The aggregate market value of the registrant's common stock held by non-affiliates of the registrant as of June 30, 2016, was approximately $1,607.7 million based upon the last sale price for the registrant's common stock on that date.

       The number of outstanding common shares of the registrant as of February 23, 2017 was 55,274,757.

DOCUMENTS INCORPORATED BY REFERENCE

       Portions of the registrants' definitive Proxy Statement for its 2017 Annual Meeting of Stockholders, to be filed with the Securities and Exchange Commission, are incorporated by reference in this Annual Report on Form 10-K in response to Part III.


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TABLE OF CONTENTS

 
   
  Page
    PART I    
Item 1.   Business   1
Item 1A.   Risk Factors   22
Item 1B.   Unresolved Staff Comments   46
Item 2.   Properties   46
Item 3.   Legal Proceedings   47
Item 4.   Mine Safety Disclosures   47

 

 

PART II

 

 
Item 5.   Market for Registrant's Common Equity, Related Stockholder Matters and Issuer Purchases of Equity Securities   48
Item 6.   Selected Financial Data   54
Item 7.   Management's Discussion and Analysis of Financial Condition and Results of Operations   56
Item 7A.   Quantitative and Qualitative Disclosures About Market Risk   79
Item 8.   Consolidated Financial Statements and Supplementary Data   80
Item 9.   Changes in and Disagreements with Accountants on Accounting and Financial Disclosure   190
Item 9A.   Controls and Procedures   190
Item 9B.   Other Information   190

 

 

PART III

 

 
Item 10.   Directors, Executive Officers and Corporate Governance   191
Item 11.   Executive Compensation   191
Item 12.   Security Ownership of Certain Beneficial Owners and Management and Related Stockholder Matters   191
Item 13.   Certain Relationships and Related Transactions, and Director Independence   192
Item 14.   Principal Accountant Fees and Services   192

 

 

PART IV

 

 
Item 15.   Exhibits and Financial Statement Schedules   193
Signatures   197

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CAUTIONARY STATEMENT CONCERNING FORWARD-LOOKING STATEMENTS

       This Annual Report on Form 10-K contains forward-looking statements regarding the plans and objectives of management for future operations. Any such forward-looking statements may involve known and unknown risks, uncertainties and other factors which may cause our actual results, performance or achievements to be materially different from future results, performance or achievements expressed or implied by any forward-looking statements. Forward-looking statements, which involve assumptions and describe our future plans, strategies and expectations, are generally identifiable by use of the words "may," "will," "should," "expect," "anticipate," "estimate," "believe," "intend" or "project" or the negative of these words or other variations on these words or comparable terminology. These forward-looking statements are based on assumptions that may be incorrect, and we cannot assure you that the projections included in these forward-looking statements will come to pass. Our actual results could differ materially from those expressed or implied by the forward-looking statements as a result of various factors, including the factors discussed in Item 1A entitled "Risk Factors" in Part I of this Annual Report on Form 10-K and elsewhere in this Annual Report on Form 10-K. Other factors that could cause actual results to differ materially include changes in the economy and future changes in laws or regulations and conditions in our operating areas.

       We have based the forward-looking statements included in this Annual Report on Form 10-K on information available to us on the date of this Annual Report on Form 10-K, and we assume no obligation to update any such forward-looking statements, unless we are required to do so by applicable law. However, you are advised to refer to any additional disclosures that we may make directly to you or through reports that we in the future may file with the Securities and Exchange Commission ("SEC"), including subsequent annual reports on Form 10-K, quarterly reports on Form 10-Q and current reports on Form 8-K.


PART I

Item 1.    Business

ORGANIZATION

       Main Street Capital Corporation ("MSCC") is a principal investment firm primarily focused on providing customized debt and equity financing to lower middle market ("LMM") companies and debt capital to middle market ("Middle Market") companies. The portfolio investments of MSCC and its consolidated subsidiaries are typically made to support management buyouts, recapitalizations, growth financings, refinancings and acquisitions of companies that operate in diverse industry sectors. MSCC seeks to partner with entrepreneurs, business owners and management teams and generally provides "one stop" financing alternatives within its LMM portfolio. MSCC and its consolidated subsidiaries invest primarily in secured debt investments, equity investments, warrants and other securities of LMM companies based in the United States and in secured debt investments of Middle Market companies generally headquartered in the United States.

       MSCC was formed in March 2007 to operate as an internally managed business development company ("BDC") under the Investment Company Act of 1940, as amended (the "1940 Act"). MSCC wholly owns several investment funds, including Main Street Mezzanine Fund, LP ("MSMF"), Main Street Capital II, LP ("MSC II") and Main Street Capital III, LP ("MSC III" and, collectively with MSMF and MSC II, the "Funds"), and each of their general partners. The Funds are each licensed as a Small Business Investment Company ("SBIC") by the United States Small Business Administration ("SBA"). Because MSCC is internally managed, all of the executive officers and other employees are employed by MSCC. Therefore, MSCC does not pay any external investment advisory fees, but instead directly incurs the operating costs associated with employing investment and portfolio management professionals.

       MSC Adviser I, LLC (the "External Investment Manager") was formed in November 2013 as a wholly owned subsidiary of MSCC to provide investment management and other services to parties other than MSCC and its subsidiaries or their portfolio companies ("External Parties") and receive fee income for such services. MSCC has been granted no-action relief by the SEC to allow the External Investment Manager to

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register as a registered investment adviser under Investment Advisers Act of 1940, as amended (the "Advisers Act"). Since the External Investment Manager conducts all of its investment management activities for External Parties, it is accounted for as a portfolio investment of MSCC and is not included as a consolidated subsidiary of MSCC in MSCC's consolidated financial statements.

       MSCC has elected to be treated for U.S. federal income tax purposes as a regulated investment company ("RIC") under Subchapter M of the Internal Revenue Code of 1986, as amended (the "Code"). As a result, MSCC generally will not pay corporate-level U.S. federal income taxes on any net ordinary taxable income or capital gains that it distributes to its stockholders.

       MSCC has certain direct and indirect wholly owned subsidiaries that have elected to be taxable entities (the "Taxable Subsidiaries"). The primary purpose of the Taxable Subsidiaries is to permit MSCC to hold equity investments in portfolio companies which are "pass-through" entities for tax purposes. The External Investment Manager is also a direct wholly owned subsidiary that has elected to be a taxable entity. The Taxable Subsidiaries and the External Investment Manager are each taxed at their normal corporate tax rates based on their taxable income.

       Unless otherwise noted or the context otherwise indicates, the terms "we," "us," "our," the "Company" and "Main Street" refer to MSCC and its consolidated subsidiaries, which include the Funds and the Taxable Subsidiaries.

       The following diagram depicts Main Street's organizational structure:

GRAPHIC


*
Each of the Taxable Subsidiaries is directly or indirectly wholly owned by MSCC.

**
Accounted for as a portfolio investment at fair value, as opposed to a consolidated subsidiary.

CORPORATE INFORMATION

       Our principal executive offices are located at 1300 Post Oak Boulevard, 8th floor, Houston, Texas 77056. We maintain a Web site on the Internet at www.mainstcapital.com. We make available free of charge on our Web site our annual reports on Form 10-K, quarterly reports on Form 10-Q, current reports on Form 8-K, and all amendments to those reports as soon as reasonably practicable after such material is electronically filed with or furnished to the SEC. You may read and copy any materials we file with the SEC at the SEC's Public Reference Room at 100 F Street, NE, Washington, DC 20549. You may obtain information regarding the Public Reference Room by calling the SEC at 1-800-SEC-0330. Information contained on our Web site is not incorporated by reference into this Annual Report on Form 10-K, and you should not consider that information to be part of this Annual Report on Form 10-K.

OVERVIEW OF OUR BUSINESS

       Our principal investment objective is to maximize our portfolio's total return by generating current income from our debt investments and capital appreciation from our equity and equity-related investments,

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including warrants, convertible securities and other rights to acquire equity securities in a portfolio company. Our LMM companies generally have annual revenues between $10 million and $150 million, and our LMM portfolio investments generally range in size from $5 million to $50 million. Our Middle Market investments are made in businesses that are generally larger in size than our LMM portfolio companies, with annual revenues typically between $150 million and $1.5 billion, and our Middle Market investments generally range in size from $3 million to $15 million. Our private loan ("Private Loan") portfolio investments are primarily debt securities in privately held companies which have been originated through strategic relationships with other investment funds on a collaborative basis. Private Loan investments are typically similar in size, structure, terms and conditions to investments we hold in our LMM portfolio and Middle Market portfolio.

       We seek to fill the financing gap for LMM businesses, which, historically, have had more limited access to financing from commercial banks and other traditional sources. The underserved nature of the LMM creates the opportunity for us to meet the financing needs of LMM companies while also negotiating favorable transaction terms and equity participations. Our ability to invest across a company's capital structure, from secured loans to equity securities, allows us to offer portfolio companies a comprehensive suite of financing options, or a "one stop" financing solution. Providing customized, "one stop" financing solutions is important to LMM portfolio companies. We generally seek to partner directly with entrepreneurs, management teams and business owners in making our investments. Our LMM portfolio debt investments are generally secured by a first lien on the assets of the portfolio company and typically have a term of between five and seven years from the original investment date.

       Our Middle Market portfolio investments primarily consist of direct investments in or secondary purchases of interest-bearing debt securities in privately held companies that are generally larger in size than the companies included in our LMM portfolio. Our Middle Market portfolio debt investments are generally secured by either a first or second priority lien on the assets of the portfolio company and typically have an expected duration of between three and seven years from the original investment date.

       Our Private Loan portfolio investments are primarily debt securities in privately held companies which have been originated through strategic relationships with other investment funds on a collaborative basis, and are often referred to in the debt markets as "club deals." Private Loan investments are typically similar in size, structure, terms and conditions to investments we hold in our LMM portfolio and Middle Market portfolio. Our Private Loan portfolio debt investments are generally secured by either a first or second priority lien on the assets of the portfolio company and typically have a term of between three and seven years from the original investment date.

       Our other portfolio ("Other Portfolio") investments primarily consist of investments which are not consistent with the typical profiles for our LMM, Middle Market or Private Loan portfolio investments, including investments which may be managed by third parties. In our Other Portfolio, we may incur indirect fees and expenses in connection with investments managed by third parties, such as investments in other investment companies or private funds.

       Our external asset management business is conducted through the External Investment Manager. The External Investment Manager earns management fees based on the assets of the funds under management and may earn incentive fees, or a carried interest, based on the performance of the funds managed. We have entered into an agreement with the External Investment Manager to share employees in connection with its asset management business generally, and specifically for its relationship with HMS Income Fund, Inc. ("HMS Income"). Through this agreement, we share employees with the External Investment Manager, including their related infrastructure, business relationships, management expertise and capital raising capabilities.

       Our portfolio investments are generally made through MSCC and the Funds. MSCC and the Funds share the same investment strategies and criteria, although they are subject to different regulatory regimes (see "Regulation"). An investor's return in MSCC will depend, in part, on the Funds' investment returns as they are wholly owned subsidiaries of MSCC.

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       The level of new portfolio investment activity will fluctuate from period to period based upon our view of the current economic fundamentals, our ability to identify new investment opportunities that meet our investment criteria, and our ability to consummate the identified opportunities. The level of new investment activity, and associated interest and fee income, will directly impact future investment income. In addition, the level of dividends paid by portfolio companies and the portion of our portfolio debt investments on non-accrual status will directly impact future investment income. While we intend to grow our portfolio and our investment income over the long term, our growth and our operating results may be more limited during depressed economic periods. However, we intend to appropriately manage our cost structure and liquidity position based on applicable economic conditions and our investment outlook. The level of realized gains or losses and unrealized appreciation or depreciation on our investments will also fluctuate depending upon portfolio activity, economic conditions and the performance of our individual portfolio companies. The changes in realized gains and losses and unrealized appreciation or depreciation could have a material impact on our operating results.

       Because we are internally managed, we do not pay any external investment advisory fees, but instead directly incur the operating costs associated with employing investment and portfolio management professionals. We believe that our internally managed structure provides us with a beneficial operating expense structure when compared to other publicly traded and privately held investment firms which are externally managed, and our internally managed structure allows us the opportunity to leverage our non-interest operating expenses as we grow our Investment Portfolio.

       During May 2012, we entered into an investment sub-advisory agreement with HMS Adviser, LP ("HMS Adviser"), which is the investment advisor to HMS Income, a non-listed BDC, to provide certain investment advisory services to HMS Adviser. In December 2013, after obtaining required no-action relief from the SEC to allow us to own a registered investment adviser, we assigned the sub-advisory agreement to the External Investment Manager since the fees received from such arrangement could otherwise have negative consequences on our ability to meet the source-of-income requirement necessary for us to maintain our RIC tax treatment. Under the investment sub-advisory agreement, the External Investment Manager is entitled to 50% of the base management fee and the incentive fees earned by HMS Adviser under its advisory agreement with HMS Income.

       During April 2014, we received an exemptive order from the SEC permitting co-investments by us and HMS Income in certain negotiated transactions where co-investing would otherwise be prohibited under the 1940 Act. We have made, and in the future intend to continue to make, such co-investments with HMS Income in accordance with the conditions of the order. The order requires, among other things, that we and the External Investment Manager consider whether each such investment opportunity is appropriate for HMS Income and, if it is appropriate, to propose an allocation of the investment opportunity between us and HMS Income. Because the External Investment Manager may receive performance-based fee compensation from HMS Income, this may provide it an incentive to allocate opportunities to HMS Income instead of us. However, we and the External Investment Manager have policies and procedures in place to avoid this conflict.

RECENT DEVELOPMENTS

       In January 2017, we led a new portfolio investment to facilitate the majority recapitalization of NuStep, Inc. ("NuStep"), the leading manufacturer of recumbent cross-trainers focused primarily on the physical therapy, physical rehabilitation and active aging markets. We, along with HMS Income, partnered with the NuStep's management team to facilitate the recapitalization of NuStep, with us funding $30.8 million in a combination of first-lien, senior secured term debt and direct equity investment. Headquartered in Ann Arbor, Michigan, NuStep serves customers across a variety of end markets, including physical therapy and rehabilitation clinics, skilled nursing facilities, fitness centers, hospitals, retirement communities and individual consumers. NuStep manufactures all of its products at its manufacturing facilities in Ann Arbor and sells its products throughout the United States and across a wide variety of international markets.

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       In February 2017, we led a new portfolio investment to facilitate the management-led buyout of Charps Welding & Fabricating, Inc. ("Charps"), a premier specialty contractor focused on the maintenance, repair, fabrication and construction of oil and gas pipelines. We, along with HMS Income, partnered with the Charps' management team to facilitate the buyout, with us funding $18.8 million in a combination of first-lien, senior secured term debt and a direct equity investment. Headquartered in Clearbrook, Minnesota, and founded in 1999, Charps provides various pipeline services to customers focused on energy transmission and distribution. Charps primarily performs work in the Midwest, Ohio Valley and Eastern U.S., and its pipeline services include pipeline integrity services, emergency response, hydrostatic testing, existing line replacement, pipeline fabrication and new construction and installation.

       During February 2017, we declared regular monthly dividends of $0.185 per share for each of April, May and June 2017. These regular monthly dividends equal a total of $0.555 per share for the second quarter of 2017. The second quarter 2017 regular monthly dividends represent a 2.8% increase from the dividends declared for the second quarter of 2016. Including the dividends declared for the second quarter of 2017, we will have paid $19.715 per share in cumulative dividends since our October 2007 initial public offering.

BUSINESS STRATEGIES

       Our principal investment objective is to maximize our portfolio's total return by generating current income from our debt investments and realizing capital appreciation from our equity and equity-related investments, including warrants, convertible securities and other rights to acquire equity securities in a portfolio company. We have adopted the following business strategies to achieve our investment objective:

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INVESTMENT CRITERIA

       Our investment team has identified the following investment criteria that it believes are important in evaluating prospective portfolio companies. Our investment team uses these criteria in evaluating investment opportunities. However, not all of these criteria have been, or will be, met in connection with each of our investments:

INVESTMENT PORTFOLIO

       The Investment Portfolio, as used herein, refers to all of our investments in LMM portfolio companies, investments in Middle Market portfolio companies, Private Loan portfolio investments, Other Portfolio investments, and the investment in the External Investment Manager, but excludes all "Marketable securities and idle funds investments." Our LMM portfolio investments primarily consist of secured debt, equity warrants and direct equity investments in privately held, LMM companies based in the United States. Our

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Middle Market portfolio investments primarily consist of direct investments in or secondary purchases of interest-bearing debt securities in privately held companies based in the United States that are generally larger in size than the companies included in our LMM portfolio. Our Private Loan portfolio investments primarily consist of investments in interest-bearing debt securities in companies that are consistent with the size of companies in our LMM portfolio or our Middle Market portfolio, but are investments that we originate on a collaborative basis with other investment funds, and are often referred to in the debt markets as "club deals." Our Other Portfolio investments primarily consist of investments which are not consistent with the typical profiles for our LMM, Middle Market and Private Loan portfolio investments, including investments which may be managed by third parties. In our Other Portfolio, we may incur indirect fees and expenses in connection with investments managed by third parties, such as investments in other investment companies or private funds.

       Historically, we have made LMM debt investments principally in the form of single tranche debt. Single tranche debt financing involves issuing one debt security that blends the risk and return profiles of both first lien secured and subordinated debt. We believe that single tranche debt is more appropriate for many LMM companies given their size in order to reduce structural complexity and potential conflicts among creditors.

       Our LMM debt investments generally have a term of five to seven years from the original investment date, with limited required amortization prior to maturity, and provide for monthly or quarterly payment of interest at fixed interest rates generally between 10% and 14% per annum, payable currently in cash. In some instances, we have provided floating interest rates for our single tranche debt securities. In addition, certain LMM debt investments may have a form of interest that is not paid currently but is accrued and added to the loan balance and paid at maturity. We refer to this form of interest as payment-in-kind, or PIK, interest. We typically structure our LMM debt investments with the maximum seniority and collateral that we can reasonably obtain while seeking to achieve our total return target. In most cases, our LMM debt investment will be collateralized by a first priority lien on substantially all the assets of the portfolio company. In addition to seeking a senior lien position in the capital structure of our LMM portfolio companies, we seek to limit the downside potential of our LMM debt investments by negotiating covenants that are designed to protect our LMM debt investments while affording our portfolio companies as much flexibility in managing their businesses as is reasonable. Such restrictions may include affirmative and negative covenants, default penalties, lien protection, change of control or change of management provisions, key-man life insurance, guarantees, equity pledges, personal guaranties, where appropriate, and put rights. In addition, we typically seek board representation or observation rights in all of our LMM portfolio companies.

       While we will continue to focus our LMM debt investments primarily on single tranche debt investments, we also anticipate structuring some of our debt investments as mezzanine loans. We anticipate that these mezzanine loans will be primarily junior secured or unsecured, subordinated loans that provide for relatively high fixed interest rates payable currently in cash that will provide us with significant interest income plus the additional opportunity for income and gains through PIK interest and equity warrants and other similar equity instruments issued in conjunction with these mezzanine loans. These loans typically will have interest-only payments in the early years, with amortization of principal deferred to the later years of the mezzanine loan term. Typically, our mezzanine loans will have maturities of three to five years. We will generally target fixed interest rates of 12% to 14%, payable currently in cash for our mezzanine loan investments with higher targeted total returns from equity warrants or PIK interest.

       We also pursue debt investments in Middle Market companies. Our Middle Market portfolio investments primarily consist of direct investments or secondary purchases of interest-bearing debt securities in privately held companies based in the United States that are generally larger in size than the companies included in our LMM portfolio. Our Middle Market portfolio debt investments are generally secured by either a first or second priority lien on the assets of the portfolio company and typically have a term of between three and seven years from the original investment date. The debt investments in our Middle Market portfolio have

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rights and protections that are similar to those in our LMM debt investments, which may include affirmative and negative covenants, default penalties, lien protection, change of control provisions, guarantees and equity pledges. The Middle Market debt investments generally have floating interest rates at LIBOR plus a margin, and are typically subject to LIBOR floors.

       Our Private Loan portfolio investments primarily consist of investments in interest-bearing debt securities in companies that are consistent with the size of companies in our LMM portfolio or our Middle Market portfolio, but are investments which have been originated through strategic relationships with other investment funds on a collaborative basis. Our Private Loan portfolio debt investments are generally secured by either a first or second priority lien and typically have a term of between three and seven years from the original investment date.

       In connection with our debt investments, we occasionally receive equity warrants to establish or increase our equity interest in the portfolio company. Warrants we receive in connection with a debt investment typically require only a nominal cost to exercise, and thus, as a portfolio company appreciates in value, we may achieve additional investment return from this equity interest. We typically structure the warrants to provide provisions protecting our rights as a minority-interest holder, as well as secured or unsecured put rights, or rights to sell such securities back to the portfolio company, upon the occurrence of specified events. In certain cases, we also may obtain registration rights in connection with these equity interests, which may include demand and "piggyback" registration rights.

       We also will seek to make direct equity investments in situations where it is appropriate to align our interests with key management and stockholders of our LMM portfolio companies, and to allow for participation in the appreciation in the equity values of our LMM portfolio companies. We usually make our direct equity investments in connection with debt investments in our LMM portfolio companies. In addition, we may have both equity warrants and direct equity positions in some of our LMM portfolio companies. We seek to maintain fully diluted equity positions in our LMM portfolio companies of 5% to 50%, and may have controlling equity interests in some instances. We have a value orientation toward our direct equity investments and have traditionally been able to purchase our equity investments at reasonable valuations.

INVESTMENT PROCESS

       Our investment committee is responsible for all aspects of our LMM investment process. The current members of our investment committee are Vincent D. Foster, our Chairman and Chief Executive Officer, Dwayne L. Hyzak, our President, Chief Operating Officer and Senior Managing Director, Curtis L. Hartman, our Vice-Chairman, Chief Credit Officer and Senior Managing Director, and David Magdol, our Vice-Chairman, Chief Investment Officer and Senior Managing Director.

       Our credit committee is responsible for all aspects of our Middle Market portfolio investment process. The current members of our credit committee are Messrs. Foster, Hartman and Rodger A. Stout, our Executive Vice President.

       Investment process responsibility for each Private Loan portfolio investment is delegated to either the investment committee or the credit committee based upon the nature of the investment and the manner in which it was originated. Similarly, the investment processes for each Private Loan portfolio investment, from origination to close and to eventual exit, will follow the processes for our LMM portfolio investments or our Middle Market portfolio investments as outlined below, or a combination thereof.

       Our investment strategy involves a "team" approach, whereby potential transactions are screened by several members of our investment team before being presented to the investment committee or the credit

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committee, as applicable. Our investment committee and credit committee each meet on an as needed basis depending on transaction volume. We generally categorize our investment process into seven distinct stages:

       Deal generation and origination is maximized through long-standing and extensive relationships with industry contacts, brokers, commercial and investment bankers, entrepreneurs, service providers such as lawyers, financial advisors, accountants and current and former portfolio companies and investors. Our investment team has focused its deal generation and origination efforts on LMM and Middle Market companies, and we have developed a reputation as a knowledgeable, reliable and active source of capital and assistance in these markets.

       During the screening process, if a transaction initially meets our investment criteria, we will perform preliminary due diligence, taking into consideration some or all of the following information:

       Upon successful screening of a proposed LMM transaction, the investment team makes a recommendation to our investment committee. If our investment committee concurs with moving forward on the proposed LMM transaction, we typically issue a non-binding term sheet to the company. For Middle Market portfolio investments, the initial term sheet is typically issued by the borrower, through the syndicating bank, and is screened by the investment team which makes a recommendation to our credit committee.

       For proposed LMM transactions, the non-binding term sheet will include the key economic terms based upon our analysis performed during the screening process as well as a proposed timeline and our qualitative expectation for the transaction. While the term sheet for LMM investments is non-binding, we typically receive an expense deposit in order to move the transaction to the due diligence phase. Upon execution of a term sheet, we begin our formal due diligence process.

       For proposed Middle Market transactions, the initial term sheet will include key economic terms and other conditions proposed by the borrower and its representatives and the proposed timeline for the investment, which are reviewed by our investment team to determine if such terms and conditions are in agreement with our investment objectives.

       Due diligence on a proposed LMM investment is performed by a minimum of two of our investment professionals, whom we refer to collectively as the investment team, and certain external resources, who together conduct due diligence to understand the relationships among the prospective portfolio company's

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business plan, operations and financial performance. Our LMM due diligence review includes some or all of the following:

       Due diligence on a proposed Middle Market investment is generally performed on materials and information obtained from certain external resources and assessed internally by a minimum of two of our investment professionals, who work to understand the relationships among the prospective portfolio company's business plan, operations and financial performance using the accumulated due diligence information. Our Middle Market due diligence review includes some or all of the following:

       During the due diligence process, significant attention is given to sensitivity analyses and how the company might be expected to perform given downside, base-case and upside scenarios. In certain cases, we may decide not to make an investment based on the results of the diligence process.

       Upon completion of a satisfactory due diligence review of a proposed LMM portfolio investment, the investment team presents the findings and a recommendation to our investment committee. The presentation contains information which can include, but is not limited to, the following:

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       Upon completion of a satisfactory due diligence review of a proposed Middle Market portfolio investment, the investment team presents the findings and a recommendation to our credit committee. The presentation contains information which can include, but is not limited to, the following:

       If any adjustments to the transaction terms or structures are proposed by the investment committee or credit committee, as applicable, such changes are made and applicable analyses are updated prior to approval of the transaction. Approval for the transaction must be made by the affirmative vote from a majority of the members of the investment committee or credit committee, as applicable, with the committee member managing the transaction, if any, abstaining from the vote. Upon receipt of transaction approval, we will re-confirm regulatory compliance, process and finalize all required legal documents, and fund the investment.

       We continuously monitor the status and progress of the portfolio companies. We generally offer managerial assistance to our portfolio companies, giving them access to our investment experience, direct industry expertise and contacts. The same investment team that was involved in the investment process will continue its involvement in the portfolio company post-investment. This provides for continuity of knowledge and allows the investment team to maintain a strong business relationship with key management of our portfolio companies for post-investment assistance and monitoring purposes.

       As part of the monitoring process of LMM portfolio investments, the investment team will analyze monthly and quarterly financial statements versus the previous periods and year, review financial projections, meet and discuss issues or opportunities with management, attend board meetings and review all compliance certificates and covenants. While we maintain limited involvement in the ordinary course operations of our LMM portfolio companies, we maintain a higher level of involvement in non-ordinary course financing or strategic activities and any non-performing scenarios. We also monitor the performance of our Middle Market portfolio investments; however, due to the larger size and higher sophistication level of these Middle Market companies in comparison to our LMM portfolio companies, it is not necessary or practical to have as much direct management interface.

       We utilize an internally developed investment rating system to rate the performance of each LMM portfolio company and to monitor our expected level of returns on each of our LMM investments in relation to our expectations for the portfolio company. The investment rating system takes into consideration various factors, including, but not limited to, each investment's expected level of returns, the collectability of our debt

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investments and the ability to receive a return of the invested capital in our equity investments, comparisons to competitors and other industry participants, the portfolio company's future outlook and other factors that are deemed to be significant to the portfolio company.

       All new LMM portfolio investments receive an initial Investment Rating of 3.

       While we generally exit most investments through the refinancing or repayment of our debt and redemption of our equity positions, we typically assist our LMM portfolio companies in developing and planning exit opportunities, including any sale or merger of our portfolio companies. We may also assist in the structure, timing, execution and transition of the exit strategy. The refinancing or repayment of Middle Market debt investments typically does not require our assistance due to the additional resources available to these larger, Middle Market companies.

DETERMINATION OF NET ASSET VALUE AND INVESTMENT PORTFOLIO VALUATION PROCESS

       We determine the net asset value per share of our common stock on a quarterly basis. The net asset value per share is equal to our total assets minus liabilities and any noncontrolling interests outstanding divided by the total number of shares of common stock outstanding.

       We are required to report our investments at fair value. As a result, the most significant determination inherent in the preparation of our consolidated financial statements is the valuation of our Investment Portfolio and the related amounts of unrealized appreciation and depreciation. We follow the provisions of the Financial Accounting Standards Board Accounting Standards Codification ("ASC") 820, Fair Value Measurements and Disclosures ("ASC 820"). ASC 820 defines fair value, establishes a framework for measuring fair value, establishes a fair value hierarchy based on the quality of inputs used to measure fair value, and enhances disclosure requirements for fair value measurements. ASC 820 requires us to assume that the portfolio investment is to be sold in the principal market to independent market participants, which may be a hypothetical market. Market participants are defined as buyers and sellers in the principal market that are independent, knowledgeable and willing and able to transact.

       We determine in good faith the fair value of our Investment Portfolio pursuant to a valuation policy in accordance with ASC 820 and a valuation process approved by our Board of Directors and in accordance with the 1940 Act. Our valuation policies and processes are intended to provide a consistent basis for determining the fair value of our Investment Portfolio. See "Note B.1. — Valuation of the Investment Portfolio" in the notes to consolidated financial statements for a detailed discussion of our investment portfolio valuation process and procedures.

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       Due to the inherent uncertainty in the valuation process, our determination of fair value for our Investment Portfolio may differ materially from the values that would have been determined had a ready market for the securities existed. In addition, changes in the market environment, portfolio company performance and other events that may occur over the lives of the investments may cause the gains or losses ultimately realized on these investments to be materially different than the valuations currently assigned. We determine the fair value of each individual investment and record changes in fair value as unrealized appreciation or depreciation.

       As described below, we undertake a multi-step valuation process each quarter in connection with determining the fair value of our investments, with our Board of Directors having final responsibility for overseeing, reviewing and approving, in good faith, our determination of the fair value for our Investment Portfolio and our valuation procedures, consistent with 1940 Act requirements. In addition, the Audit Committee of our Board of Directors periodically evaluates the performance and methodologies of the financial advisory services firm that we consult in connection with valuing our LMM and Private Loan portfolio company investments.

       Determination of fair value involves subjective judgments and estimates. The notes to our consolidated financial statements refer to the uncertainty with respect to the possible effect of such valuations, and any change in such valuations, on our financial results and financial condition.

COMPETITION

       We compete for investments with a number of investment funds (including private equity funds, mezzanine funds, BDCs, and SBICs), as well as traditional financial services companies such as commercial banks and other sources of financing. Many of the entities that compete with us are larger and have more resources available to them. We believe we are able to be competitive with these entities primarily on the basis of our focus toward the underserved LMM, the experience and contacts of our management team, our responsive and efficient investment analysis and decision-making processes, our comprehensive suite of customized financing solutions and the investment terms we offer.

       We believe that some of our competitors make senior secured loans, junior secured loans and subordinated debt investments with interest rates and returns that are comparable to or lower than the rates and returns that we target. Therefore, we do not seek to compete primarily on the interest rates and returns that we offer to potential portfolio companies. For additional information concerning the competitive risks we

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face, see "Risk Factors — Risks Related to Our Business and Structure — We may face increasing competition for investment opportunities."

EMPLOYEES

       As of December 31, 2016, we had 57 employees. These employees include investment and portfolio management professionals, operations professionals and administrative staff. As necessary, we will hire additional investment professionals and administrative personnel. All of our employees are located in our Houston, Texas office.

REGULATION

       We have elected to be regulated as a BDC under the 1940 Act. The 1940 Act contains prohibitions and restrictions relating to transactions between BDCs and their affiliates, principal underwriters and affiliates of those affiliates or underwriters. The 1940 Act requires that a majority of the members of the board of directors of a BDC be persons other than "interested persons," as that term is defined in the 1940 Act. In addition, the 1940 Act provides that we may not change the nature of our business so as to cease to be, or to withdraw our election as, a BDC unless approved by a majority of our outstanding voting securities.

       The 1940 Act defines "a majority of the outstanding voting securities" as the lesser of (i) 67% or more of the voting securities present at a meeting if the holders of more than 50% of our outstanding voting securities are present or represented by proxy or (ii) more than 50% of our outstanding voting securities.

       Under the 1940 Act, a BDC may not acquire any asset other than assets of the type listed in Section 55(a) of the 1940 Act, which are referred to as qualifying assets, unless, at the time the acquisition is made, qualifying assets represent at least 70% of the company's total assets. The principal categories of qualifying assets relevant to our business are any of the following:

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       In addition, a BDC must have been organized and have its principal place of business in the United States and must be operated for the purpose of making investments in the types of securities described in (1), (2) or (3) above.

       An eligible portfolio company is defined in the 1940 Act as any issuer which:

       As noted above, a BDC must be operated for the purpose of making investments in the type of securities described in (1), (2) or (3) above under the heading entitled "— Qualifying Assets." In addition, BDCs must generally offer to make available to such issuer of the securities (other than small and solvent companies described above) significant managerial assistance; except that, where we purchase such securities in conjunction with one or more other persons acting together, one of the other persons in the group may make available such managerial assistance. Making available managerial assistance means, among other things, any arrangement whereby the BDC, through its directors, officers or employees, offers to provide, and, if accepted, does so provide, significant guidance and counsel concerning the management, operations or business objectives and policies of a portfolio company.

       Pending investment in "qualifying assets," as described above, our investments may consist of cash, cash equivalents, U.S. government securities and high-quality debt securities maturing in one year or less from time of investment therein, so that 70% of our assets are qualifying assets.

       We are permitted, under specified conditions, to issue multiple classes of debt and one class of stock senior to our common stock if our asset coverage, as defined in the 1940 Act, is at least equal to 200% of all debt and/or senior stock immediately after each such issuance. In addition, while any senior securities remain outstanding (other than senior securities representing indebtedness issued in consideration of a privately arranged loan which is not intended to be publicly distributed), we must make provisions to prohibit any distribution to our stockholders or the repurchase of such securities or shares unless we meet the applicable asset coverage ratios at the time of the distribution or repurchase. We may also borrow amounts up to 5% of the value of our total assets for temporary or emergency purposes without regard to asset coverage. For a discussion of the risks associated with leverage, see "Risk Factors — Risks Relating to Our Business and Structure," including, without limitation, "— Because we borrow money, the potential for gain or loss on amounts invested in us is magnified and may increase the risk of investing in us."

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       We have previously received an exemptive order from the SEC to exclude debt securities issued by MSMF and any other wholly owned subsidiaries of ours which operate as SBICs from the asset coverage requirements of the 1940 Act as applicable to Main Street. The exemptive order provides for the exclusion of all debt securities issued by the Funds, including the $240.0 million of currently outstanding debt, related to their participation in the SBIC program. This exemptive order provides us with expanded capacity and flexibility in obtaining future sources of capital for our investment and operational objectives.

       We are not generally able to issue and sell our common stock at a price below net asset value per share. We may, however, sell our common stock, warrants, options or rights to acquire our common stock, at a price below the current net asset value of the common stock if our Board of Directors determines that such sale is in our best interests and that of our stockholders, and our stockholders approve such sale. In any such case, the price at which our securities are to be issued and sold may not be less than a price which, in the determination of our Board of Directors, closely approximates the market value of such securities (less any distributing commission or discount). We did not seek stockholder authorization to sell shares of our common stock below the then current net asset value per share of our common stock at our 2016 annual meeting of stockholders because our common stock price had been trading significantly above the net asset value per share of our common stock since 2011. Our stockholders have previously approved a proposal that authorizes us to issue securities to subscribe to, convert to, or purchase shares of our common stock in one or more offerings. We may also make rights offerings to our stockholders at prices per share less than the net asset value per share, subject to applicable requirements of the 1940 Act. See "Risk Factors — Risks Relating to Our Business and Structure — Stockholders may incur dilution if we sell shares of our common stock in one or more offerings at prices below the then current net asset value per share of our common stock or issue securities to subscribe to, convert to or purchase shares of our common stock."

       We have adopted a code of ethics pursuant to Rule 17j-1 under the 1940 Act that establishes procedures for personal investments and restricts certain personal securities transactions. Personnel subject to the code may invest in securities for their personal investment accounts, including securities that may be purchased or held by us, so long as such investments are made in accordance with the code's requirements. You may read and copy the code of ethics at the SEC's Public Reference Room located at 100 F Street, NE, Washington, DC 20549. You may obtain information on the operation of the Public Reference Room by calling the SEC at 1-800-SEC-0330. In addition, the code of ethics is available on the EDGAR Database on the SEC's Web site at http://www.sec.gov.

       We vote proxies relating to our portfolio securities in a manner in which we believe is consistent with the best interest of our stockholders. We review on a case-by-case basis each proposal submitted to a stockholder vote to determine its impact on the portfolio securities held by us. Although we generally vote against proposals that we expect would have a negative impact on our portfolio securities, we may vote for such a proposal if there exists compelling long-term reasons to do so.

       Our proxy voting decisions are made by the investment team which is responsible for monitoring each of our investments. To ensure that our vote is not the product of a conflict of interest, we require that anyone involved in the decision-making process discloses to our chief compliance officer any potential conflict of which he or she is aware.

       Stockholders may obtain information, without charge, regarding how we voted proxies with respect to our portfolio securities by making a written request for proxy voting information to: Chief Compliance Officer, 1300 Post Oak Boulevard, 8th floor, Houston, Texas 77056.

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       We are also prohibited under the 1940 Act from knowingly participating in certain transactions with our affiliates without the prior approval of our Board of Directors who are not interested persons and, in some cases, prior approval by the SEC.

       We are required to provide and maintain a bond issued by a reputable fidelity insurance company to protect us against larceny and embezzlement. Furthermore, as a BDC, we are prohibited from protecting any director or officer against any liability to us or our stockholders arising from willful misfeasance, bad faith, gross negligence or reckless disregard of the duties involved in the conduct of such person's office.

       We are required to adopt and implement written policies and procedures reasonably designed to prevent violation of the federal securities laws, review these policies and procedures annually for their adequacy and the effectiveness of their implementation, and to designate a chief compliance officer to be responsible for administering the policies and procedures.

       We may be periodically examined by the SEC for compliance with the 1940 Act.

       Each of the Funds is licensed by the SBA to operate as a SBIC under Section 301(c) of the Small Business Investment Act of 1958. MSMF obtained its SBIC license in 2002, MSC II obtained its license in 2006 and MSC III obtained its license in 2016.

       SBICs are designed to stimulate the flow of private capital to eligible small businesses. Under SBIC regulations, SBICs may make loans to eligible small businesses, invest in the equity securities of such businesses and provide them with consulting and advisory services. Each of the Funds has typically invested in secured debt, acquired warrants and/or made equity investments in qualifying small businesses.

       The Funds are subject to regulation and oversight by the SBA, including requirements with respect to reporting financial information, such as the extent of capital impairment if applicable, on a regular basis and annual examinations conducted by the SBA. The SBA, as a creditor, will have a superior claim to the Funds' assets over our stockholders in the event the Funds are liquidated or the SBA exercises its remedies under the SBA-guaranteed debentures issued by the Funds upon an event of default.

       We have received exemptive relief from the SEC to permit us to exclude the SBA-guaranteed debentures of the Funds from our 200% asset coverage test under the 1940 Act. As such, our ratio of total consolidated assets to outstanding indebtedness may be less than 200%. This provides us with increased investment flexibility but also increases our risks related to leverage. See "Item 1A. Risk Factors — Risks related to our business and structure — Because we borrow money, the potential for gain or loss on amounts invested in us is magnified and may increase the risk of investing in us."

       Under present SBIC regulations, eligible small businesses generally include businesses that (together with their affiliates) have a tangible net worth not exceeding $19.5 million and have average annual net income after U.S. federal income taxes not exceeding $6.5 million (average net income to be computed without benefit of any carryover loss) for the two most recent fiscal years. In addition, an SBIC must devote 25% of its investment activity to "smaller" enterprises as defined by the SBA. A smaller enterprise generally includes businesses that have a tangible net worth not exceeding $6 million and have average annual net income after U.S. federal income taxes not exceeding $2 million (average net income to be computed without benefit of any net carryover loss) for the two most recent fiscal years. SBIC regulations also provide alternative size standard criteria to determine eligibility for designation as an eligible small business or smaller enterprise, which criteria depend on the primary industry in which the business is engaged and are based on such factors as the number of employees and gross revenue. However, once an SBIC has invested in a company, it generally may continue to make follow-on investments in the company, regardless of the size of the portfolio company at the time of the follow-on investment, up to the time of the portfolio company's initial public offering.

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       The SBA prohibits an SBIC from providing funds to small businesses for certain purposes, such as relending and investment outside the United States, to businesses engaged in certain prohibited industries, and to certain "passive" (non-operating) companies. In addition, without prior SBA approval, an SBIC may not invest an amount equal to more than approximately 30% of the SBIC's regulatory capital, as defined by the SBA, in any one portfolio company and its affiliates.

       The SBA places certain limitations on the financing terms of investments by SBICs in portfolio companies (such as limiting the permissible interest rate on debt securities held by an SBIC in a portfolio company). Included in such limitations are SBA regulations which allow an SBIC to exercise control over a small business for a period of seven years from the date on which the SBIC initially acquires its control position. This control period may be extended for an additional period of time with the SBA's prior written approval.

       The SBA restricts the ability of an SBIC to lend money to any of its officers, directors and employees or to invest in affiliates thereof. The SBA also prohibits, without prior SBA approval, a "change of control" of an SBIC or transfers that would result in any person (or a group of persons acting in concert) owning 10% or more of a class of equity of a licensed SBIC. A "change of control" is any event which would result in the transfer of the power, direct or indirect, to direct the management and policies of an SBIC, whether through ownership, contractual arrangements or otherwise.

       The SBIC licenses allow the Funds to incur leverage by issuing SBA-guaranteed debentures, subject to the issuance of a capital commitment and certain approvals by the SBA and customary procedures. SBA-guaranteed debentures carry long-term fixed rates that are generally lower than rates on comparable bank and other debt. Under applicable regulations, an SBIC may generally have outstanding debentures guaranteed by the SBA in amounts up to twice the amount of the privately-raised funds of the SBIC. Debentures guaranteed by the SBA have a maturity of ten years, require semiannual payments of interest, do not require any principal payments prior to maturity, and are not subject to prepayment penalties. As of December 31, 2016, we, through the Funds, had $240.0 million of outstanding SBA-guaranteed debentures, which had an annual weighted-average interest rate of approximately 4.1%.

       SBICs must invest idle funds that are not being used to make loans in investments permitted under SBIC regulations in the following limited types of securities: (i) direct obligations of, or obligations guaranteed as to principal and interest by, the United States government, which mature within 15 months from the date of the investment; (ii) repurchase agreements with federally insured institutions with a maturity of seven days or less (and the securities underlying the repurchase obligations must be direct obligations of or guaranteed by the federal government); (iii) certificates of deposit with a maturity of one year or less, issued by a federally insured institution; (iv) a deposit account in a federally insured institution that is subject to a withdrawal restriction of one year or less; (v) a checking account in a federally insured institution; or (vi) a reasonable petty cash fund.

       SBICs are periodically examined and audited by the SBA's staff to determine their compliance with SBIC regulations and are periodically required to file certain financial information and other documents with the SBA.

       Neither the SBA nor the U.S. government or any of its agencies or officers has approved any ownership interest to be issued by us or any obligation that we or any of our subsidiaries may incur.

       We are subject to the reporting and disclosure requirements of the Securities Exchange Act of 1934 (the "Exchange Act"), including the filing of quarterly, annual and current reports, proxy statements and other

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required items. In addition, we are subject to the Sarbanes-Oxley Act of 2002, which imposes a wide variety of regulatory requirements on publicly-held companies and their insiders. For example:

       The New York Stock Exchange ("NYSE") has adopted corporate governance regulations that listed companies must comply with. We believe we are in compliance with such corporate governance listing standards. We intend to monitor our compliance with all future listing standards and to take all necessary actions to ensure that we stay in compliance.

       The External Investment Manager, which is wholly owned by us, is subject to regulation under the Advisers Act. The Advisers Act establishes, among other things, recordkeeping and reporting requirements, disclosure requirements, limitations on transactions between the adviser's account and an advisory client's account, limitations on transactions between the accounts of advisory clients, and general anti-fraud prohibitions. The External Investment Manager may be examined by the SEC from time to time for compliance with the Advisers Act.

       MSCC has elected to be treated for U.S. federal income tax purposes as a RIC under Subchapter M of the Code. MSCC's taxable income includes the taxable income generated by MSCC and certain of its subsidiaries, including the Funds, which are treated as disregarded entities for tax purposes. As a RIC, MSCC generally will not pay corporate-level U.S. federal income taxes on any income that we distribute to our stockholders as dividends. To qualify as a RIC, we must, among other things, meet certain source-of-income and asset diversification requirements (as described below). In addition, in order to obtain RIC tax treatment, we must distribute to our stockholders, for each taxable year, at least 90% of our "investment company taxable income," which is generally our net ordinary taxable income plus the excess of realized net short-term capital gains over realized net long-term capital losses, and 90% of our tax-exempt income (the "Annual Distribution Requirement"). As part of maintaining RIC status, undistributed taxable income (subject to a 4% non-deductible U.S. federal excise tax) pertaining to a given fiscal year may be distributed up to 12 months subsequent to the end of that fiscal year, provided such dividends are declared on or prior to the later of (i) filing of the U.S. federal income tax return for the applicable fiscal year or (ii) the fifteenth day of the ninth month following the close of the year in which such taxable income was generated.

       For any taxable year in which we qualify as a RIC and satisfy the Annual Distribution Requirement, we will not be subject to U.S. federal income tax on the portion of our income or capital gains we distribute (or are deemed to distribute) to stockholders. We will be subject to U.S. federal income tax at the regular corporate rates on any income or capital gains not distributed (or deemed distributed) to our stockholders.

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       We are subject to a 4% non-deductible U.S. federal excise tax on certain undistributed income unless we distribute in a timely manner an amount at least equal to the sum of (1) 98% of our net ordinary taxable income for each calendar year, (2) 98.2% of our capital gain net income for the one-year period ending December 31 in that calendar year and (3) any taxable income recognized, but not distributed, in preceding years on which we paid no U.S. federal income tax (the "Excise Tax Avoidance Requirement"). Dividends declared and paid by us in a year will generally differ from taxable income for that year as such dividends may include the distribution of current year taxable income, exclude amounts carried over into the following year, and include the distribution of prior year taxable income carried over into and distributed in the current year. For amounts we carry over into the following year, we will be required to pay the 4% U.S. federal excise tax based on 98% of our annual taxable income and 98.2% of our capital gain net income in excess of distributions for the year.

       In order to qualify as a RIC for U.S. federal income tax purposes, we must, among other things:

       In order to comply with the 90% Income Test, we formed the Taxable Subsidiaries as wholly owned taxable subsidiaries, for the primary purpose of permitting us to own equity interests in portfolio companies which are "pass-through" entities for tax purposes. Absent the taxable status of the Taxable Subsidiaries, a portion of the gross income from such portfolio companies would flow directly to us for purposes of the 90% Income Test. To the extent such income did not consist of income derived from securities, such as dividends and interest, it could jeopardize our ability to qualify as a RIC and, therefore, cause us to incur significant U.S. federal income taxes. The Taxable Subsidiaries are consolidated with Main Street for generally accepted accounting principles in the United States of America ("U.S. GAAP") purposes and are included in our consolidated financial statements, and the portfolio investments held by the Taxable Subsidiaries are included in our consolidated financial statements. The Taxable Subsidiaries are not consolidated with Main Street for income tax purposes and may generate income tax expense, or benefit, as a result of their ownership of the portfolio investments. The income tax expense, or benefit, if any, and any related tax assets and liabilities, are reflected in our consolidated financial statements.

       In order to comply with the 90% Income Test, the External Investment Manager has elected to be a taxable entity. Absent the taxable status of the External Investment Manager, the gross income from the External Investment Manager would flow directly to us for purposes of the 90% Income Test. Since such income would likely not consist of income derived from securities, such as dividends and interest, it could jeopardize our ability to qualify as a RIC and, therefore, cause us to incur significant U.S. federal income taxes. The External Investment Manager is accounted for as a portfolio investment for U.S. GAAP purposes, but is not consolidated with MSCC for income tax purposes and may generate income tax expense, or benefit, as a result of its operating activity.

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       We may be required to recognize taxable income in circumstances in which we do not receive cash. For example, if we hold debt obligations that are treated under applicable tax rules as having original issue discount (such as debt instruments issued with warrants and debt securities invested in at a discount to par), we must include in income each year a portion of the original issue discount that accrues over the life of the obligation, regardless of whether cash representing such income is received by us in the same taxable year. We may also have to include in income other amounts that we have not yet received in cash such as PIK interest, cumulative dividends or amounts that are received in non-cash compensation such as warrants or stock. Because any original issue discount or other amounts accrued will be included in our investment company taxable income for the year of accrual, we may be required to make a distribution to our stockholders in order to satisfy the Annual Distribution Requirement, even though we will not have received any corresponding cash amount.

       Although we do not presently expect to do so, we are authorized to borrow funds and to sell assets in order to satisfy distribution requirements. However, under the 1940 Act, we are not permitted to make distributions to our stockholders in certain circumstances while our debt obligations and other senior securities are outstanding unless certain "asset coverage" tests are met. See "Regulation — Regulation as a Business Development Company — Senior Securities." Moreover, our ability to dispose of assets to meet our distribution requirements may be limited by (1) the illiquid nature of our portfolio and/or (2) other requirements relating to our status as a RIC, including the Diversification Tests. If we dispose of assets in order to meet the Annual Distribution Requirement or the Excise Tax Avoidance Requirement, we may make such dispositions at times that, from an investment standpoint, are not advantageous.

       We may distribute taxable dividends that are payable in part in our stock. Under certain applicable provisions of the Code and the Treasury regulations, distributions payable by us in cash or in shares of stock (at the stockholders election) would satisfy the Annual Distribution Requirement. The Internal Revenue Service has issued private rulings indicating that this rule will apply even where the total amount of cash that may be distributed is limited to no more than 20% of the total distribution. Under these rulings, if too many stockholders elect to receive their distributions in cash, each such stockholder would receive a pro rata share of the total cash to be distributed and would receive the remainder of their distribution in shares of stock. Taxable stockholders receiving such dividends will be required to include the full amount of the dividend (whether received in cash, our stock, or a combination thereof) as (i) ordinary income (including any qualified dividend income that, in the case of a noncorporate stockholder, may be eligible for the same reduced maximum tax rate applicable to long-term capital gains to the extent such distribution is properly reported by us as qualified dividend income and such stockholder satisfies certain minimum holding period requirements with respect to our stock) or (ii) long-term capital gain (to the extent such distribution is properly reported as a capital gain dividend), to the extent of our current and accumulated earnings and profits for U.S. federal income tax purposes. As a result, a U.S. stockholder may be required to pay tax with respect to such dividends in excess of any cash received. If a U.S. stockholder sells the stock it receives in order to pay this tax, the sales proceeds may be less than the amount included in income with respect to the dividend, depending on the market price of our stock at the time of the sale. Furthermore, with respect to non-U.S. stockholders, we may be required to withhold U.S. tax with respect to such dividends, including in respect of all or a portion of such dividend that is payable in stock. In addition, if a significant number of our stockholders determine to sell shares of our stock in order to pay taxes owed on dividends, it may put downward pressure on the trading price of our stock.

       If we fail to satisfy the 90% Income Test or the Diversification Tests for any taxable year, we may nevertheless continue to qualify as a RIC for such year if certain relief provisions are applicable (which may, among other things, require us to pay certain corporate-level U.S. federal taxes or to dispose of certain assets).

       If we were unable to qualify for treatment as a RIC and the foregoing relief provisions are not applicable, we would be subject to tax on all of our taxable income at regular corporate rates. We would not be able to

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deduct distributions to stockholders, nor would they be required to be made. If we were subject to tax on all of our taxable income at regular corporate rates, then distributions we make after being subject to such tax would be taxable to our stockholders and, provided certain holding period and other requirements were met, could qualify for treatment as "qualified dividend income" eligible for the maximum 20% rate (plus a 3.8% Medicare surtax, if applicable) applicable to qualified dividends to the extent of our current and accumulated earnings and profits. Subject to certain limitations under the Code, corporate taxpayers would be eligible for a dividends-received deduction on distributions they receive. Distributions in excess of our current and accumulated earnings and profits would be treated first as a return of capital to the extent of the stockholder's tax basis, and any remaining distributions would be treated as a capital gain. To requalify as a RIC in a subsequent taxable year, we would be required to satisfy the RIC qualification requirements for that year and dispose of any earnings and profits from any year in which we failed to qualify as a RIC. Subject to a limited exception applicable to RICs that qualified as such under Subchapter M of the Code for at least one year prior to disqualification and that requalify as a RIC no later than the second year following the nonqualifying year, we could be subject to tax on any unrealized net built-in gains in the assets held by us during the period in which we failed to qualify as a RIC that are recognized within the subsequent five years, unless we made a special election to pay corporate-level U.S. federal income tax on such built-in gain at the time of our requalification as a RIC.

Item 1A.    Risk Factors

       Investing in our securities involves a number of significant risks. In addition to the other information contained in this Annual Report on Form 10-K, you should consider carefully the following information before making an investment in our securities. The risks set out below are not the only risks we face. Additional risks and uncertainties not presently known to us or not presently deemed material by us might also impair our operations and performance. If any of the following events occur, our business, financial condition and results of operations could be materially and adversely affected. In such case, our net asset value, the trading price of our common stock and the value of our other securities could decline, and you may lose all or part of your investment.

RISKS RELATING TO ECONOMIC CONDITIONS

       The broader fundamentals of the United States economy remain mixed. In the event that the United States economy contracts, it is likely that the financial results of small to mid-sized companies, like those in which we invest, could experience deterioration or limited growth from current levels, which could ultimately lead to difficulty in meeting their debt service requirements and an increase in defaults. In addition, a prolonged continuation of the decline in oil and natural gas prices experienced over the last two years would adversely affect the credit quality of our debt investments and the underlying operating performance of our equity investments in energy-related businesses. Consequently, we can provide no assurance that the performance of certain portfolio companies will not be negatively impacted by economic cycles, industry cycles or other conditions, which could also have a negative impact on our future results.

       Although we have been able to secure access to additional liquidity, including through the Credit Facility, public debt issuances, leverage available through the SBIC program and equity offerings, the potential for volatility in the debt and equity capital markets provides no assurance that debt or equity capital will be available to us in the future on favorable terms, or at all. Further, if the price of our common stock falls below our net asset value per share, we will be limited in our ability to sell new shares if we do not have stockholder authorization to sell shares at a price below net asset value per share. We did not seek stockholder authorization to sell shares of our common stock below the then current net asset value per share

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of our common stock at our 2016 annual meeting of stockholders because our common stock price had been trading significantly above the net asset value per share of our common stock since 2011.

RISKS RELATING TO OUR BUSINESS AND STRUCTURE

       Under the 1940 Act, we are required to carry our portfolio investments at market value or, if there is no readily available market value, at fair value as determined by us with our Board of Directors having final responsibility for overseeing, reviewing and approving, in good faith, our determination of fair value and our valuation procedures. Typically, there is not a public market for the securities of the privately held LMM or Private Loan companies in which we have invested and will generally continue to invest. As a result, we value these securities quarterly at fair value based on inputs from management, a nationally recognized independent financial advisory services firm (on a rotational basis) and our audit committee with the oversight, review and approval of our Board of Directors. In addition, the market for investments in Middle Market companies is generally not a liquid market, and therefore, we primarily use a combination of observable inputs in non-active markets for which sufficient observable inputs were not available to determine the fair value of these investments and unobservable inputs, which are reviewed by our audit committee with the oversight, review and approval of our Board of Directors. See "Note B.1. — Valuation of the Investment Portfolio" in the notes to consolidated financial statements for a detailed discussion of our investment portfolio valuation process and procedures.

       The determination of fair value and consequently, the amount of unrealized gains and losses in our portfolio, are to a certain degree, subjective and dependent on a valuation process approved by our Board of Directors. Certain factors that may be considered in determining the fair value of our investments include external events, such as private mergers, sales and acquisitions involving comparable companies. Because such valuations, and particularly valuations of private securities and private companies, are inherently uncertain, may fluctuate over short periods of time and may be based on estimates, our determinations of fair value may differ materially from the values that would have been used if a ready market for these securities existed. Due to this uncertainty, our fair value determinations may cause our net asset value on a given date to materially understate or overstate the value that we may ultimately realize on one or more of our investments. As a result, investors purchasing our securities based on an overstated net asset value would pay a higher price than the value of our investments might warrant. Conversely, investors selling our securities during a period in which the net asset value understates the value of our investments may receive a lower price for their securities than the value of our investments might warrant.

       Our ability to achieve our investment objective of maximizing our portfolio's total return by generating current income from our debt investments and capital appreciation from our equity and equity-related investments, including warrants, convertible securities and other rights to acquire equity securities in a portfolio company, depends on our ability to effectively manage and deploy capital, which depends, in turn, on our investment team's ability to identify, evaluate and monitor, and our ability to finance and invest in, companies that meet our investment criteria.

       Accomplishing our investment objective on a cost-effective basis is largely a function of our investment team's handling of the investment process, its ability to provide competent, attentive and efficient services and our access to investments offering acceptable terms. In addition to monitoring the performance of our existing investments, members of our investment team are also called upon, from time to time, to provide managerial

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assistance to some of our portfolio companies. These demands on their time may distract them or slow the rate of investment.

       Even if we are able to grow and build upon our investment operations, any failure to manage our growth effectively could have a material adverse effect on our business, financial condition, results of operations and prospects. The results of our operations will depend on many factors, including the availability of opportunities for investment, readily accessible short and long-term funding alternatives in the financial markets and economic conditions. Furthermore, if we cannot successfully operate our business or implement our investment policies and strategies as described herein, it could negatively impact our ability to pay dividends.

       We compete for investments with other investment funds (including private equity funds, debt funds, mezzanine funds, collateralized loan obligation funds, or CLOs, BDCs, and SBICs), as well as traditional financial services companies such as commercial banks and other sources of funding. Many of our competitors are substantially larger and have considerably greater financial, technical and marketing resources than we do. For example, some competitors may have a lower cost of capital and access to funding sources that are not available to us. In addition, some of our competitors may have higher risk tolerances or different risk assessments than we have. These characteristics could allow our competitors to consider a wider variety of investments, establish more relationships and offer better pricing and more flexible structuring than we are able to do. We may lose investment opportunities if we do not match our competitors' pricing, terms and structure. If we are forced to match our competitors' pricing, terms and structure, we may not be able to achieve acceptable returns on our investments or may bear substantial risk of capital loss. A significant part of our competitive advantage stems from the fact that the market for investments in LMM companies is underserved by traditional commercial banks and other financing sources. A significant increase in the number and/or the size of our competitors in this target market could force us to accept less attractive investment terms. Furthermore, many of our competitors are not subject to the regulatory restrictions that the 1940 Act imposes on us as a BDC.

       We depend on the members of our investment team, particularly Vincent D. Foster, Dwayne L. Hyzak, Curtis L. Hartman, David L. Magdol, K. Colton Braud, III, Nicholas T. Meserve, and Rodger A. Stout for the identification, review, final selection, structuring, closing and monitoring of our investments. These employees have significant investment expertise and relationships that we rely on to implement our business plan. Although we have entered into a non-compete agreement with Mr. Foster, we have no guarantee that he or any other employees will remain employed with us. If we lose the services of these individuals, we may not be able to operate our business as we expect, and our ability to compete could be harmed, which could cause our operating results to suffer.

       Our growth will require that we retain new investment and administrative personnel in a competitive market. Our ability to attract and retain personnel with the requisite credentials, experience and skills depends on several factors including, but not limited to, our ability to offer competitive wages, benefits and professional growth opportunities. Many of the entities, including investment funds (such as private equity funds, debt funds and mezzanine funds) and traditional financial services companies, with which we compete for experienced personnel have greater resources than we have.

       The competitive environment for qualified personnel may require us to take certain measures to ensure that we are able to attract and retain experienced personnel. Such measures may include increasing the attractiveness of our overall compensation packages, altering the structure of our compensation packages

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through the use of additional forms of compensation, or other steps. The inability to attract and retain experienced personnel would have a material adverse effect on our business.

       We expect that members of our management team will maintain their relationships with intermediaries, financial institutions, investment bankers, commercial bankers, financial advisors, attorneys, accountants, consultants and other individuals within our network, and we will rely to a significant extent upon these relationships to provide us with potential investment opportunities. If our management team fails to maintain its existing relationships or develop new relationships with sources of investment opportunities, we will not be able to grow our Investment Portfolio. In addition, individuals with whom members of our management team have relationships are not obligated to provide us with investment opportunities, and, therefore, there is no assurance that such relationships will generate investment opportunities for us.

       Our executive officers and employees, through the External Investment Manager, may manage other investment funds that operate in the same or a related line of business as we do. Accordingly, they may have obligations to such other entities, the fulfillment of which obligations may not be in the best interests of us or our stockholders. During May 2012, we entered into an investment sub-advisory agreement with HMS Adviser, which is the investment advisor to HMS Income, a non-listed BDC, to provide certain investment advisory services to HMS Adviser. In December 2013, after obtaining required no-action relief from the SEC to allow us to own a registered investment adviser, we assigned the sub-advisory agreement to the External Investment Manager since the fees received from such arrangement could otherwise have negative consequences on our ability to meet the source-of-income requirement necessary for us to maintain our RIC tax treatment. Under the investment sub-advisory agreement, the External Investment Manager is entitled to 50% of the base management fee and the incentive fees earned by HMS Adviser under its advisory agreement with HMS Income. The sub-advisory relationship requires us to commit resources to achieving HMS Income's investment objective, while such resources were previously solely devoted to achieving our investment objective. Our investment objective and investment strategies are very similar to those of HMS Income and it is likely that an investment appropriate for us or HMS Income would be appropriate for the other entity. As a result, we and HMS Income requested an exemptive order from the SEC permitting co-investments by us and HMS Income in certain negotiated transactions where our co-investing would otherwise be prohibited under the 1940 Act. The SEC granted the exemptive order in April 2014, and we have made, and in the future intend to continue to make, such co-investments with HMS Income in accordance with the conditions of the order. The order requires, among other things, that we and the External Investment Manager consider whether each such investment opportunity is appropriate for HMS Income and, if it is appropriate, to propose an allocation of the investment opportunity between us and HMS Income. As a consequence, it may be more difficult for us to maintain or increase the size of our Investment Portfolio in the future. Although we will endeavor to allocate investment opportunities in a fair and equitable manner, including in accordance with the conditions set forth in the exemptive order issued by the SEC when relying on such order, we may face conflicts in allocating investment opportunities between us and HMS Income. Because the External Investment Manager may receive performance-based fee compensation from HMS Income, this may provide an incentive to allocate opportunities to HMS Income instead of us. We have implemented an allocation policy to ensure the equitable distribution of investment opportunities and, as a result, may be unable to participate in certain investments based upon such allocation policy.

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       Our business will require capital to operate and grow. We may acquire such additional capital from the following sources:

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       The Funds, our wholly owned subsidiaries, are licensed to act as SBICs and are regulated by the SBA. The SBA also places certain limitations on the financing terms of investments by SBICs in portfolio companies and prohibits SBICs from providing funds for certain purposes or to businesses in a few prohibited industries. Compliance with SBA requirements may cause the Funds to forego attractive investment opportunities that are not permitted under SBA regulations.

       Further, the SBA regulations require, among other things, that a licensed SBIC be periodically examined by the SBA and audited by an independent auditor, in each case to determine the SBIC's compliance with the relevant SBA regulations. The SBA prohibits, without prior SBA approval, a "change of control" of an SBIC or transfers that would result in any person (or a group of persons acting in concert) owning 10% or more of a class of capital stock of a licensed SBIC. If the Funds fail to comply with applicable SBIC regulations, the SBA could, depending on the severity of the violation, limit or prohibit their use of SBIC debentures, declare outstanding SBIC debentures immediately due and payable, and/or limit them from making new investments. In addition, the SBA can revoke or suspend a license for willful or repeated violation of, or willful or repeated failure to observe, any provision of the Small Business Investment Act of 1958 or any rule or regulation promulgated thereunder. Such actions by the SBA would, in turn, negatively affect us.

       Borrowings, also known as leverage, magnify the potential for loss on investments in our indebtedness and gain or loss on investments in our equity capital. As we use leverage to partially finance our investments, you will experience increased risks of investing in our securities. We, through the Funds, issue debt securities guaranteed by the SBA and sold in the capital markets. As a result of its guarantee of the debt securities, the SBA has fixed dollar claims on the assets of the Funds that are superior to the claims of our securities holders. We may also borrow from banks and other lenders, including under our Credit Facility, and may issue debt securities or enter into other types of borrowing arrangements in the future. See "Management's Discussion and Analysis of Financial Condition and Results of Operations — Capital Resources" for a discussion regarding our outstanding indebtedness. If the value of our assets decreases, leveraging would cause net asset value to decline more sharply than it otherwise would have had we not leveraged our business. Similarly, any decrease in our income would cause net investment income to decline more sharply than it would have had we not leveraged our business. Such a decline could negatively affect our ability to pay common stock dividends, scheduled debt payments or other payments related to our securities. Use of leverage is generally considered a speculative investment technique.

       As of December 31, 2016, we, through the Funds, had $240.0 million of outstanding indebtedness guaranteed by the SBA, which had a weighted-average annualized interest cost of approximately 4.1%. The debentures guaranteed by the SBA have a maturity of ten years, with a current weighted-average remaining maturity of 4.9 years as of December 31, 2016, and require semiannual payments of interest. We will need to generate sufficient cash flow to make required interest payments on the debentures. If we are unable to meet the financial obligations under the debentures, the SBA, as a creditor, will have a superior claim to the assets of the Funds over our stockholders in the event we liquidate or the SBA exercises its remedies under such debentures as the result of a default by us.

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       In addition, as of December 31, 2016, we had $343.0 million outstanding under our Credit Facility. Borrowings under the Credit Facility bear interest, subject to our election, on a per annum basis at a rate equal to the applicable LIBOR rate (0.77% as of December 31, 2016) plus (i) 1.875% (or the applicable base rate (Prime Rate of 3.75% as of December 31, 2016) plus 0.875%), as long as we maintain an investment grade rating and meet certain agreed upon excess collateral and maximum leverage requirements, (ii) 2.0% (or the applicable base rate plus 1.0%) if we maintain an investment grade rating but do not meet certain excess collateral and maximum leverage requirements or (iii) 2.25% (or the applicable base rate plus 1.25%) if we do not maintain an investment grade rating. We pay unused commitment fees of 0.25% per annum on the unused lender commitments under the Credit Facility. If we are unable to meet the financial obligations under the Credit Facility, the Credit Facility lending group will have a superior claim to the assets of MSCC and its subsidiaries (excluding the assets of the Funds) over our stockholders in the event we liquidate or the lending group exercises its remedies under the Credit Facility as the result of a default by us.

       In April 2013, we issued $92.0 million in aggregate principal amount of 6.125% Notes due 2023 (the "6.125% Notes"). As of December 31, 2016, the outstanding balance of the 6.125% Notes was $90.7 million. The 6.125% Notes are unsecured obligations and rank pari passu with our current and future unsecured indebtedness; senior to any of our future indebtedness that expressly provides it is subordinated to the 6.125% Notes; effectively subordinated to all of our existing and future secured indebtedness, to the extent of the value of the assets securing such indebtedness, including borrowings under our Credit Facility; and structurally subordinated to all existing and future indebtedness and other obligations of any of our subsidiaries, including without limitation, the indebtedness of the Funds. The 6.125% Notes mature on April 1, 2023, and may be redeemed in whole or in part at any time or from time to time at our option on or after April 1, 2018. The 6.125% Notes bear interest at a rate of 6.125% per year.

       In November 2014, we issued $175.0 million in aggregate principal amount of 4.50% unsecured notes due 2019 (the "4.50% Notes" and, together with the 6.125% Notes, the "Notes") at an issue price of 99.53%. As of December 31, 2016, the outstanding balance of the 4.50% Notes was $175.0 million. The 4.50% Notes are unsecured obligations and rank pari passu with our current and future unsecured indebtedness; senior to any of our future indebtedness that expressly provides it is subordinated to the 4.50% Notes; effectively subordinated to all of our existing and future secured indebtedness, to the extent of the value of the assets securing such indebtedness, including borrowings under our Credit Facility; and structurally subordinated to all existing and future indebtedness and other obligations of any of our subsidiaries, including without limitation, the indebtedness of the Funds. The 4.50% Notes mature on December 1, 2019, and may be redeemed in whole or in part at any time at our option subject to certain make-whole provisions.


Assumed Return on Our Portfolio(1)
(net of expenses)

 
  (10.0)%   (5.0)%   0.0%   5.0%   10.0%  

Corresponding net return to common stockholder(2)

    (20.0)%     (11.3)%     (2.7)%     6.0%     14.6%  

(1)
Assumes $2,080.3 million in total assets, $848.7 million in debt outstanding, $1,201.5 million in net assets, and a weighted-average interest rate of 3.8%. Actual interest payments may be different.

(2)
In order for us to cover our annual interest payments on indebtedness, we must achieve annual returns on our December 31, 2016 total assets of at least 1.6%.

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       Our ability to achieve our investment objective may depend in part on our ability to access additional leverage on favorable terms by issuing debentures guaranteed by the SBA through the Funds, by borrowing from banks or insurance companies or by issuing other debt securities and there can be no assurance that such additional leverage can in fact be achieved.

       Substantially all of our assets are currently pledged as collateral under our Credit Facility or are subject to a superior claim over our stockholders by the SBA. If we default on our obligations under the Credit Facility or our SBA-guaranteed debentures, the lenders and/or the SBA may have the right to foreclose upon and sell, or otherwise transfer, the collateral subject to their security interests or their superior claim. In such event, we may be forced to sell our investments to raise funds to repay our outstanding borrowings in order to avoid foreclosure and these forced sales may be at times and at prices we would not consider advantageous. Moreover, such deleveraging of our company could significantly impair our ability to effectively operate our business in the manner in which we have historically operated. As a result, we could be forced to curtail or cease new investment activities and lower or eliminate the dividends that we have historically paid to our stockholders. In addition, if the lenders exercise their right to sell the assets pledged under our Credit Facility, such sales may be completed at distressed sale prices, thereby diminishing or potentially eliminating the amount of cash available to us after repayment of the amounts outstanding under the Credit Facility.

       As a BDC, under the 1940 Act we generally are not permitted to incur indebtedness unless immediately after such borrowing we have an asset coverage for total borrowings of at least 200% (i.e., the amount of debt may not exceed 50% of the value of our assets). Legislation introduced in the U.S. House of Representatives during the 114th Congress proposed to modify this section of the 1940 Act and increase the amount of debt that BDCs may incur by modifying the asset coverage percentage from 200% to 150%. If such legislation is passed, we may be able to incur additional indebtedness in the future and, therefore, your risk of an investment in our securities may increase.

       Recent U.S. debt ceiling and budget deficit concerns have increased the possibility of additional credit-rating downgrades and economic slowdowns, or a recession in the U.S. Although U.S. lawmakers passed legislation to raise the federal debt ceiling on multiple occasions, ratings agencies have lowered or threatened to lower the long-term sovereign credit rating on the United States. The impact of this or any further downgrades to the U.S. government's sovereign credit rating or its perceived creditworthiness could adversely affect the U.S. and global financial markets and economic conditions. Absent further quantitative easing by the Federal Reserve, these developments could cause interest rates and borrowing costs to rise, which may negatively impact our ability to access the debt markets on favorable terms. In addition, disagreement over the federal budget has caused the U.S. federal government to shut down for periods of time. Continued adverse political and economic conditions could have a material adverse effect on our business, financial condition and results of operations.

       As a result of concerns about the accuracy of the calculation of LIBOR, a number of British Bankers' Association, or BBA, member banks entered into settlements with certain regulators and law enforcement

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agencies with respect to the alleged manipulation of LIBOR, and there are ongoing investigations by regulators and governmental authorities in various jurisdictions. Following a review of LIBOR conducted at the request of the U.K. government, on September 28, 2012, recommendations for reforming the setting and governing of LIBOR were released, which are referred to as the Wheatley Review. The Wheatley Review made a number of recommendations for changes with respect to LIBOR, including the introduction of S-5 statutory regulation of LIBOR, the transfer of responsibility for LIBOR from the BBA to an independent administrator, changes to the method of the compilation of lending rates and new regulatory oversight and enforcement mechanisms for rate-setting and a reduction in the number of currencies and tenors for which LIBOR is published. Based on the Wheatley Review and on a subsequent public and governmental consultation process, on March 25, 2013, the U.K. Financial Services Authority published final rules for the U.K. Financial Conduct Authority's regulation and supervision of LIBOR, which are referred to as the FCA Rules. In particular, the FCA Rules include requirements that (1) an independent LIBOR administrator monitor and survey LIBOR submissions to identify breaches of practice standards and/or potentially manipulative behavior, and (2) firms submitting data to LIBOR establish and maintain a clear conflicts of interest policy and appropriate systems and controls. The FCA Rules took effect on April 2, 2013, and on July 9, 2013, NYSE Euronext was chosen to serve as the independent LIBOR administrator commencing in 2014. It is uncertain what additional regulatory changes or what changes, if any, in the method of determining LIBOR may be required or made by the U.K. government or other governmental or regulatory authorities. Accordingly, uncertainty as to the nature of such changes may adversely affect the market for or value of any LIBOR-linked securities, loans, derivatives and other financial obligations or extensions of credit held by or due to us or on our overall financial condition or results of operations. In addition, any further changes or reforms to the determination or supervision of LIBOR may result in a sudden or prolonged increase or decrease in reported LIBOR, which could have an adverse impact on the market for or value of any LIBOR-linked securities, loans, derivatives and other financial obligations or extensions of credit held by or due to us or on our overall financial condition or results of operations.

       In addition, in November 2014, the Federal Reserve established a working group, the Alternative Reference Rates Committee ("ARRC"), to identify a set of alternative interest reference rates to LIBOR. In a May 2016 interim report, the ARRC narrowed its choice to two LIBOR alternatives. The first choice is the Overnight Bank Funding Rate ("OBFR"), which consists of domestic and foreign unsecured borrowing in U.S. dollars. The Federal Reserve has been calculating the OBFR and publishing it since March 2016. The second alternative rate to LIBOR is the Treasury General Collateral ("GC") rate, which is composed of repo transactions secured by treasuries or other assets accepted as collateral by the majority of intermediaries in the repo market. No specific rate for the GC alternative has yet been specified to serve as a replacement for LIBOR, and it remains undefined. The transition to any alternative rate will require careful and deliberate consideration and implementation so as to not disrupt the stability of financial markets. Regulators, financial institutions, benchmark administrators, and borrowers will need to strategize and implement these changes in a manner that is least disruptive. There is no guarantee that a transition from LIBOR to an alternative will not result in financial market disruptions, significant increases in benchmark rates, or borrowing costs to borrowers.

       We could experience fluctuations in our quarterly operating results due to a number of factors, including our ability or inability to make investments in companies that meet our investment criteria, the interest rate payable on the debt securities we acquire, the level of portfolio dividend and fee income, the level of our expenses, variations in and the timing of the recognition of realized and unrealized gains or losses, the degree to which we encounter competition in our markets and general economic conditions. As a result of these factors, results for any quarterly period should not be relied upon as being indicative of performance in future periods.

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       Our Board of Directors has the authority to modify or waive our current operating policies, investment criteria and strategies without prior notice and without stockholder approval. We cannot predict the effect any changes to our current operating policies, investment criteria and strategies would have on our business, net asset value, operating results and value of our stock. However, the effects might be adverse, which could negatively impact our ability to pay interest and principal payments to holders of our debt instruments and dividends to our stockholders and cause our investors to lose all or part of their investment in us.

       To maintain RIC tax treatment under the Code, we must meet the following annual distribution, income source and asset diversification requirements:

       Failure to meet these requirements may result in our having to dispose of certain investments quickly in order to prevent the loss of RIC status. Because most of our investments will be in private companies, and therefore will be illiquid, any such dispositions could be made at disadvantageous prices and could result in substantial losses. Moreover, if we fail to maintain RIC tax treatment for any reason and are subject to corporate income tax, the resulting corporate taxes could substantially reduce our net assets, the amount of income available for distribution and the amount of our distributions.

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       We intend to pay distributions to our stockholders out of assets legally available for distribution. We cannot assure you that we will achieve investment results that will allow us to pay a specified level of cash distributions, previously projected distributions for future periods, or year-to-year increases in cash distributions. Our ability to pay distributions might be adversely affected by, among other things, the impact of one or more of the risk factors described herein. In addition, the inability to satisfy the asset coverage test applicable to us as a BDC could limit our ability to pay distributions. All distributions will be paid at the discretion of our Board of Directors and will depend on our earnings, our financial condition, maintenance of our RIC status, compliance with applicable BDC regulations, compliance with our debt covenants, each of the Funds' compliance with applicable SBIC regulations and such other factors as our Board of Directors may deem relevant from time to time. We cannot assure you that we will pay distributions to our stockholders in the future.

       When we make distributions, we will be required to determine the extent to which such distributions are paid out of current or accumulated taxable earnings, recognized capital gains or capital. To the extent there is a return of capital, investors will be required to reduce their basis in our stock for federal tax purposes, which may result in higher tax liability when the shares are sold, even if they have not increased in value or have lost value. In addition, any return of capital will be net of any sales load and offering expenses associated with sales of shares of our common stock. In the future, our distributions may include a return of capital.

       We will include in income certain amounts that we have not yet received in cash, such as: (i) amortization of original issue discount, which may arise if we receive warrants in connection with the origination of a loan such that ascribing a value to the warrants creates original issue discount in the debt instrument, if we invest in a debt investment at a discount to the par value of the debt security or possibly in other circumstances; (ii) contractual payment-in-kind, or PIK, interest, which represents contractual interest added to the loan balance and due at the end of the loan term; (iii) contractual preferred dividends, which represents contractual dividends added to the preferred stock and due at the end of the preferred stock term, subject to adequate profitability at the portfolio company; or (iv) amortization of market discount, which is associated with loans purchased in the secondary market at a discount to par value. Such amortization of original issue discounts, increases in loan balances as a result of contractual PIK arrangements, cumulative preferred dividends, or amortization of market discount will be included in income before we receive the corresponding cash payments. We also may be required to include in income certain other amounts before we receive such amounts in cash. Investments structured with these features may represent a higher level of credit risk compared to investments generating income which must be paid in cash on a current basis. For the year ended December 31, 2016, (i) approximately 3.6% of our total investment income was attributable to PIK income not paid currently in cash, (ii) approximately 0.8% of our total investment income was attributable to amortization of original issue discount, (iii) approximately 1.2% of our total investment income was attributable to cumulative dividend income not paid currently in cash, and (iv) approximately 2.3% of our total investment income was attributable to amortization of market discount on loans purchased in the secondary market at a discount.

       Since, in certain cases, we may recognize taxable income before or without receiving cash representing such income, we may have difficulty meeting the Annual Distribution Requirement necessary to maintain RIC tax treatment under the Code. Accordingly, we may have to sell some of our investments at times and/or at prices we would not consider advantageous, raise additional debt or equity capital or forgo new investment opportunities for this purpose. If we are not able to obtain cash from other sources, we may fail to qualify for RIC tax treatment and thus become subject to corporate-level U.S. federal income tax. For additional

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discussion regarding the tax implications of a RIC, please see "Business — Regulation — Taxation as a Regulated Investment Company."

       We may distribute taxable dividends that are payable in part in our stock. Under certain applicable provisions of the Code and the Treasury regulations, distributions payable by us in cash or in shares of stock (at the stockholders election) would satisfy the Annual Distribution Requirement. The IRS has issued private letter rulings providing that a dividend payable in stock or in cash at the election of the stockholders will be treated as a taxable dividend eligible for the dividends paid deduction provided that at least 20% of the total dividend is payable in cash and certain other requirements are satisfied. Taxable stockholders receiving such dividends will be required to include the full amount of the dividend as ordinary income (or as long-term capital gain to the extent such dividend is properly reported as a capital gain dividend) to the extent of our current and accumulated earnings and profits for U.S. federal income tax purposes. As a result, a U.S. stockholder may be required to pay tax with respect to such dividends in excess of any cash received. If a U.S. stockholder sells the stock it receives as a dividend in order to pay this tax, the sales proceeds may be less than the amount included in income with respect to the dividend, depending on the market price of our stock at the time of the sale. Furthermore, with respect to non-U.S. stockholders, we may be required to withhold U.S. tax with respect to such dividends, including in respect of all or a portion of such dividend that is payable in stock. In addition, if a significant number of our stockholders determine to sell shares of our stock in order to pay taxes owed on dividends, it may put downward pressure on the trading price of our stock.

       In order for us to continue to qualify for RIC tax treatment and to minimize corporate-level U.S. federal taxes, we will be required to distribute substantially all of our net ordinary taxable income and net capital gain income, including taxable income from certain of our subsidiaries, which includes the income from the Funds. We will be partially dependent on the Funds for cash distributions to enable us to meet the RIC distribution requirements. The Funds may be limited by the Small Business Investment Act of 1958, and SBIC regulations governing SBICs, from making certain distributions to us that may be necessary to enable us to maintain our status as a RIC. We may have to request a waiver of the SBA's restrictions for the Funds to make certain distributions to maintain our eligibility for RIC status. We cannot assure you that the SBA will grant such waiver and if the Funds are unable to obtain a waiver, compliance with the SBIC regulations may result in loss of RIC tax treatment and a consequent imposition of an entity-level tax on us.

       In order to satisfy the requirements applicable to a RIC and to minimize corporate-level U.S. federal taxes, we intend to distribute to our stockholders substantially all of our net ordinary taxable income and net capital gain income. We may carry forward excess undistributed taxable income into the next year, net of the 4% U.S. federal excise tax. Any such carryover taxable income must be distributed through a dividend declared prior to filing the final tax return related to the year which generated such taxable income. As a BDC, we generally are required to meet an asset coverage ratio, as defined in the 1940 Act, of at least 200% immediately after each issuance of senior securities. This requirement limits the amount that we may borrow and may prohibit us from making distributions. Because we will continue to need capital to grow our Investment Portfolio, this limitation may prevent us from incurring debt and require us to raise additional equity at a time when it may be disadvantageous to do so.

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       While we expect to be able to borrow and to issue additional debt and equity securities, we cannot assure you that debt and equity financing will be available to us on favorable terms, or at all. In addition, as a BDC, we generally are not permitted to issue equity securities priced below net asset value without stockholder approval. If additional funds are not available to us, we could be forced to curtail or cease new investment activities, and our net asset value could decline.

       The 1940 Act prohibits us from selling shares of our common stock at a price below the current net asset value per share of such stock, with certain exceptions. One such exception is prior stockholder approval of issuances below net asset value provided that our Board of Directors makes certain determinations. We did not seek stockholder authorization to sell shares of our common stock below the then current net asset value per share of our common stock at our 2016 annual meeting of stockholders because our common stock price per share had been trading significantly above the current net asset value per share of our common stock, and we do not currently expect to seek such approval at our 2017 annual meeting of stockholders for the same reason. We may, however, seek such authorization at future annual or special meetings of stockholders. Our stockholders have previously approved a proposal to authorize us to issue securities to subscribe to, convert to, or purchase shares of our common stock in one or more offerings. Any decision to sell shares of our common stock below the then current net asset value per share of our common stock or securities to subscribe to, convert to, or purchase shares of our common stock would be subject to the determination by our Board of Directors that such issuance is in our and our stockholders' best interests.

       If we were to sell shares of our common stock below net asset value per share, such sales would result in an immediate dilution to the net asset value per share. This dilution would occur as a result of the sale of shares at a price below the then current net asset value per share of our common stock and a proportionately greater decrease in a stockholder's interest in our earnings and assets and voting interest in us than the increase in our assets resulting from such issuance. In addition, if we issue securities to subscribe to, convert to or purchase shares of common stock, the exercise or conversion of such securities would increase the number of outstanding shares of our common stock. Any such exercise would be dilutive on the voting power of existing stockholders, and could be dilutive with regard to dividends and our net asset value, and other economic aspects of the common stock.

       Because the number of shares of common stock that could be so issued and the timing of any issuance is not currently known, the actual dilutive effect cannot be predicted; however, the example below illustrates the effect of dilution to existing stockholders resulting from the sale of common stock at prices below the net asset value of such shares.

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  Prior to Sale
Below NAV
  Following Sale
Below NAV
  Percentage
Change
 

Reduction to NAV

                   

Total Shares Outstanding

    1,000,000     1,040,000     4.0%  

NAV per share

  $ 10.00   $ 9.98     (0.2)%  

Dilution to Existing Stockholder

                   

Shares Held by Stockholder A

    10,000     10,000 (1)   0.0%  

Percentage Held by Stockholder A

    1.00%     0.96%     (3.8)%  

Total Interest of Stockholder A in NAV

  $ 100,000   $ 99,808     (0.2)%  

(1)
Assumes that Stockholder A does not purchase additional shares in the sale of shares below NAV.

       We, the Funds, and our portfolio companies are subject to applicable local, state and federal laws and regulations. New legislation may be enacted or new interpretations, rulings or regulations could be adopted, including those governing the types of investments we are permitted to make, any of which could harm us and our stockholders, potentially with retroactive effect. In addition, any change to the SBA's current debenture SBIC program could have a significant impact on our ability to obtain lower-cost leverage through the Funds, and therefore, our ability to compete with other finance companies.

       Additionally, any changes to the laws and regulations governing our operations relating to permitted investments may cause us to alter our investment strategy in order to avail ourselves of new or different opportunities. Such changes could result in material differences to the strategies and plans set forth herein and may result in our investment focus shifting from the areas of expertise of our investment team to other types of investments in which our investment team may have less expertise or little or no experience. Thus, any such changes, if they occur, could have a material adverse effect on our results of operations and the value of your investment.

       Terrorist acts, acts of war or natural disasters may disrupt our operations, as well as the operations of the businesses in which we invest. Such acts have created, and continue to create, economic and political uncertainties and have contributed to global economic instability. Future terrorist activities, military or security operations, or natural disasters could further weaken the domestic/global economies and create additional uncertainties, which may negatively impact the businesses in which we invest directly or indirectly and, in turn, could have a material adverse impact on our business, operating results and financial condition. Losses from terrorist attacks and natural disasters are generally uninsurable.

       Our business is highly dependent on our and third parties' communications and information systems. Any failure or interruption of those systems, including as a result of the termination of an agreement with any third-party service providers, could cause delays or other problems in our activities. Our financial, accounting, data processing, backup or other operating systems and facilities may fail to operate properly or become

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disabled or damaged as a result of a number of factors including events that are wholly or partially beyond our control and adversely affect our business. There could be:

RISKS RELATED TO OUR INVESTMENTS

       Investing in our portfolio companies involves a number of significant risks. Among other things, these companies:

       In addition, in the course of providing significant managerial assistance to certain of our portfolio companies, certain of our officers and directors may serve as directors on the boards of such companies. To the extent that litigation arises out of our investments in these companies, our officers and directors may be named as defendants in such litigation, which could result in an expenditure of funds (through our indemnification of such officers and directors) and the diversion of management time and resources.

       A prolonged continuation of the decline in oil and natural gas prices would adversely affect (i) the credit quality of our debt investments and (ii) the underlying operating performance of our equity investments in energy-related businesses and in geographic areas which are more sensitive to the health of the oil and gas industries. A decrease in credit quality and the operating performance would, in turn, negatively affect the fair

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value of these investments, which would consequently negatively affect our net asset value. Should the decline in oil and natural gas prices experienced over the last two years persist, it is likely that the ability of these investments to satisfy financial or operating covenants imposed by us or other lenders will be adversely affected, thereby negatively impacting their financial condition and their ability to satisfy their debt service and other obligations to us. Likewise, should the decline in oil and natural gas prices persist, it is likely that our energy-related portfolio companies' and other affected companies' cash flow and profit generating capacities would also be adversely affected thereby negatively impacting their ability to pay us dividends or distributions on our equity investments.

       Our investments may include original issue discount and contractual PIK interest, which represents contractual interest added to a loan balance and due at the end of such loan's term. To the extent original issue discount or PIK interest constitute a portion of our income, we are exposed to typical risks associated with such income being required to be included in taxable and accounting income prior to receipt of cash, including the following:

       We invest, and will continue to invest in companies whose securities are not publicly traded, and whose securities will be subject to legal and other restrictions on resale or will otherwise be less liquid than publicly traded securities. The illiquidity of these investments may make it difficult for us to sell these investments when desired. In addition, if we are required to liquidate all or a portion of our portfolio quickly, we may realize significantly less than the value at which we had previously recorded these investments. As a result, we do not expect to achieve liquidity in our investments in the near-term. Our investments are usually subject to contractual or legal restrictions on resale or are otherwise illiquid because there is usually no established trading market for such investments. The illiquidity of most of our investments may make it difficult for us to dispose of them at a favorable price, and, as a result, we may suffer losses.

       We may not have the funds or ability to make additional investments in our portfolio companies. After our initial investment in a portfolio company, we may be called upon from time to time to provide additional funds to such company or have the opportunity to increase our investment through the extension of additional loans, the exercise of a warrant to purchase equity securities, or the funding of additional equity investments. There is no assurance that we will make, or will have sufficient funds to make, follow-on investments. Any decisions not to make a follow-on investment or any inability on our part to make such an investment may have a negative impact on a portfolio company in need of such an investment, may result in a missed opportunity for us to increase our participation in a successful operation or may reduce the expected yield on the investment.

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       We invest primarily in the secured term debt of LMM, Private Loan and Middle Market companies and equity issued by LMM companies. Our portfolio companies may have, or may be permitted to incur, other debt that ranks equally with, or senior to, the debt in which we invest. By their terms, such debt instruments may entitle the holders to receive payment of interest or principal on or before the dates on which we are entitled to receive payments with respect to the debt instruments in which we invest. Also, in the event of insolvency, liquidation, dissolution, reorganization or bankruptcy of a portfolio company, holders of debt instruments ranking senior to our investment in that portfolio company would typically be entitled to receive payment in full before we receive any distribution. After repaying such senior creditors, such portfolio company may not have any remaining assets to use for repaying its obligation to us. In the case of debt ranking equally with debt instruments in which we invest, we would have to share on an equal basis any distributions with other creditors holding such debt in the event of an insolvency, liquidation, dissolution, reorganization or bankruptcy of the relevant portfolio company.

       Even though we may have structured certain of our investments as secured loans, if one of our portfolio companies were to go bankrupt, depending on the facts and circumstances, and based upon principles of equitable subordination as defined by existing case law, a bankruptcy court could subordinate all or a portion of our claim to that of other creditors and transfer any lien securing such subordinated claim to the bankruptcy estate. The principles of equitable subordination defined by case law have generally indicated that a claim may be subordinated only if its holder is guilty of misconduct or where the senior loan is re-characterized as an equity investment and the senior lender has actually provided significant managerial assistance to the bankrupt debtor. We may also be subject to lender liability claims for actions taken by us with respect to a borrower's business or instances where we exercise control over the borrower. It is possible that we could become subject to a lender's liability claim, including as a result of actions taken in rendering significant managerial assistance or actions to compel and collect payments from the borrower outside the ordinary course of business.

       Certain loans that we make are secured by a second priority security interest in the same collateral pledged by a portfolio company to secure senior debt owed by the portfolio company to commercial banks or other traditional lenders. Often the senior lender has procured covenants from the portfolio company prohibiting the incurrence of additional secured debt without the senior lender's consent. Prior to and as a condition of permitting the portfolio company to borrow money from us secured by the same collateral pledged to the senior lender, the senior lender will require assurances that it will control the disposition of any collateral in the event of bankruptcy or other default. In many such cases, the senior lender will require us to enter into an "intercreditor agreement" prior to permitting the portfolio company to borrow from us. Typically the intercreditor agreements we are requested to execute expressly subordinate our debt instruments to those held by the senior lender and further provide that the senior lender shall control: (1) the commencement of foreclosure or other proceedings to liquidate and collect on the collateral; (2) the nature, timing and conduct of foreclosure or other collection proceedings; (3) the amendment of any collateral document; (4) the release of the security interests in respect of any collateral; and (5) the waiver of defaults under any security agreement. Because of the control we may cede to senior lenders under intercreditor agreements we may enter, we may be unable to realize the proceeds of any collateral securing some of our loans.

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       Finally, the value of the collateral securing our debt investment will ultimately depend on market and economic conditions, the availability of buyers and other factors. Therefore, there can be no assurance that the proceeds, if any, from the sale or sales of all of the collateral would be sufficient to satisfy the loan obligations secured by our first or second priority liens. There is also a risk that such collateral securing our investments will decrease in value over time, will be difficult to sell in a timely manner, will be difficult to appraise and will fluctuate in value based upon the success of the portfolio company and market conditions. If such proceeds are not sufficient to repay amounts outstanding under the loan obligations secured by our second priority liens, then we, to the extent not repaid from the proceeds of the sale of the collateral, will only have an unsecured claim against the company's remaining assets, if any.

       We are classified as a non-diversified investment company within the meaning of the 1940 Act, which means that we are not limited by the 1940 Act with respect to the proportion of our assets that we may invest in securities of a single issuer. To the extent that we assume large positions in the securities of a small number of issuers, our net asset value may fluctuate to a greater extent than that of a diversified investment company as a result of changes in the financial condition or the market's assessment of the issuer. We may also be more susceptible to any single economic or regulatory occurrence than a diversified investment company. Beyond our RIC asset diversification requirements, we do not have fixed guidelines for diversification, and our investments could be concentrated in relatively few portfolio companies.

       We do not, and do not expect to, control the decision making in many of our portfolio companies, even though we may have board representation or board observation rights, and our debt agreements may contain certain restrictive covenants. As a result, we are subject to the risk that a portfolio company in which we invest will make business decisions with which we disagree and the management of such company, as representatives of the holders of their common equity, will take risks or otherwise act in ways that do not serve our interests as debt investors. Due to the lack of liquidity for our investments in non-traded companies, we may not be able to dispose of our interests in our portfolio companies as readily as we would like or at an appropriate valuation. As a result, a portfolio company may make decisions that would decrease the value of our portfolio holdings.

       A portfolio company's failure to satisfy financial or operating covenants imposed by us or other lenders could lead to non-payment of interest and other defaults and, potentially, termination of its loans and foreclosure on its secured assets, which could trigger cross-defaults under other agreements and jeopardize a portfolio company's ability to meet its obligations under the debt or equity securities that we hold. We may incur expenses to the extent necessary to seek recovery upon default or to negotiate new terms, which may include the waiver of certain financial covenants, with a defaulting portfolio company.

       As a BDC, we are required to carry our investments at market value or, if no market value is ascertainable, at the fair value as determined in good faith by our Board of Directors. Decreases in the market values or fair values of our investments will be recorded as unrealized depreciation. Any unrealized depreciation in our portfolio could be an indication of a portfolio company's inability to meet its repayment obligations to us with respect to affected loans or a potential impairment of the value of affected equity investments. This could result in realized losses in the future and ultimately in reductions of our income and gains available for distribution in future periods.

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       We are subject to the risk that the investments we make in our portfolio companies may be repaid prior to maturity. When this occurs, we will generally reinvest these proceeds in temporary investments, pending their future investment in new portfolio companies. These temporary investments will typically have substantially lower yields than the debt being prepaid and we could experience significant delays in reinvesting these amounts. Any future investment in a new portfolio company may also be at lower yields than the debt that was repaid. As a result, our results of operations could be materially adversely affected if one or more of our portfolio companies elect to prepay amounts owed to us. Additionally, prepayments could negatively impact our return on equity, which could result in a decline in the market price of our securities.

       Some of our debt investments will bear interest at variable rates and may be negatively affected by changes in market interest rates. An increase in market interest rates would increase the interest costs and reduce the cash flows of our portfolio companies that have variable rate debt instruments, a situation which could reduce the value of the investment. The value of our investments could also be reduced from an increase in market interest rates as rates available to investors could make an investment in our securities less attractive than alternative investments. In addition, an increase in interest rates would make it more expensive for us to use debt to finance our investments. As a result, a significant increase in market interest rates could increase our cost of capital, which would reduce our net investment income. Conversely, decreases in market interest rates could negatively impact the interest income from our variable rate debt investments. A decrease in market interest rates may also have an adverse impact on our returns by requiring us to accept lower yields on our debt investments and by increasing the risk that our portfolio companies will prepay our debt investments, resulting in the need to redeploy capital at potentially lower rates.

       Certain investments that we have made in the past and may make in the future include warrants or other equity securities. Investments in equity securities involve a number of significant risks, including the risk of further dilution as a result of additional issuances, inability to access additional capital and failure to pay current distributions. Investments in preferred securities involve special risks, such as the risk of deferred distributions, credit risk, illiquidity and limited voting rights. In addition, we may from time to time make non-control, equity investments in portfolio companies. Our goal is ultimately to realize gains upon our disposition of such equity interests. However, the equity interests we receive may not appreciate in value and, in fact, may decline in value. Accordingly, we may not be able to realize gains from our equity interests, and any gains that we do realize on the disposition of any equity interests may not be sufficient to offset any other losses we experience. We also may be unable to realize any value if a portfolio company does not have a liquidity event, such as a sale of the business, recapitalization or public offering, which would allow us to sell the underlying equity interests. We often seek puts or similar rights to give us the right to sell our equity securities back to the portfolio company issuer; however, we may be unable to exercise these put rights for the consideration provided in our investment documents if the issuer is in financial distress.

       Marketable securities and idle funds investments can include, among other things, secured and unsecured debt investments, independently rated debt investments, diversified bond funds and publicly traded debt and equity securities. Many of these investments in debt obligations are, or would be if rated, below investment grade quality. Indebtedness of below investment grade quality, which is often referred to as "junk," is regarded as having predominantly speculative characteristics with respect to the issuer's capacity to pay interest and repay principal, similar to our portfolio investments in our portfolio companies. See "— Our

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investments in portfolio companies involve higher levels of risk, and we could lose all or part of our investment." Many of these Marketable securities and idle funds investments are purchased through over the counter or other markets and are therefore liquid at the time of purchase but may subsequently become illiquid due to events relating to the issuer of the securities, market events, economic conditions or investor perceptions. See "— The lack of liquidity in our investments may adversely affect our business" for a description of risks related to holding illiquid investments. In addition, domestic and foreign markets are complex and interrelated, so that events in one sector of the world markets or economy, or in one geographical region, can reverberate and have materially negative consequences for other market, economic or regional sectors in a manner that may not be foreseen and which may materially affect the market price of our Marketable securities and idle funds investments. Other risks that our portfolio investments are subject to are also applicable to these Marketable securities and idle funds investments.

       Our investments in foreign securities may involve significant risks in addition to the risks inherent in investments in U.S. securities. Our investment strategy contemplates potential investments in debt securities of foreign companies. Investing in foreign companies may expose us to additional risks not typically associated with investing in securities of U.S. companies. These risks include changes in exchange control regulations, political and social instability, expropriation, imposition of foreign taxes, less liquid markets and less available information than is generally the case in the U.S., higher transaction costs, less government supervision of exchanges, brokers and issuers, less developed bankruptcy laws, difficulty in enforcing contractual obligations, lack of uniform accounting and auditing standards and greater price volatility.

       Although most of our investments will be U.S. dollar denominated, any investments denominated in a foreign currency will be subject to the risk that the value of a particular currency will change in relation to one or more other currencies. Among the factors that may affect currency values are trade balances, the level of short-term interest rates, differences in relative values of similar assets in different currencies, long-term opportunities for investment and capital appreciation, and political developments.

RISKS RELATING TO OUR SECURITIES

       Shares of closed-end investment companies, including BDCs, may trade at a discount to net asset value. This characteristic of closed-end investment companies and BDCs is separate and distinct from the risk that our net asset value per share may decline. We cannot predict whether our common stock will trade at, above or below net asset value. In addition, if our common stock trades below our net asset value per share, we will generally not be able to issue additional common stock at the market price unless our stockholders approve such a sale and our Board of Directors makes certain determinations. See "— Risks Relating to Our Business and Structure — Stockholders may incur dilution if we sell shares of our common stock in one or more offerings at prices below the then current net asset value per share of our common stock or issue securities to subscribe to, convert to or purchase shares of our common stock" for a discussion related to us issuing shares of our common stock below net asset value.

       Delays in investing the net proceeds raised in an offering or from exiting an investment or other capital may cause our performance to be worse than that of other fully invested BDCs or other lenders or investors pursuing comparable investment strategies. We cannot assure you that we will be able to identify any investments that meet our investment objective or that any investment that we make will produce a positive

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return. We may be unable to invest the net proceeds of any offering or from exiting an investment or other capital on acceptable terms within the time period that we anticipate or at all, which could harm our financial condition and operating results.

       We anticipate that, depending on market conditions and the amount of the capital, it may take us a substantial period of time to invest substantially all the capital in securities meeting our investment objective. During this period, we will invest the capital primarily in Marketable securities and idle funds investments, which may produce returns that are significantly lower than the returns which we expect to achieve when our portfolio is fully invested in securities meeting our investment objective. As a result, any distributions that we pay during such period may be substantially lower than the distributions that we may be able to pay when our portfolio is fully invested in securities meeting our investment objective. In addition, until such time as the net proceeds of any offering or from exiting an investment or other capital are invested in new securities meeting our investment objective, the market price for our securities may decline. Thus, the initial return on your investment may be lower than when, if ever, our portfolio is fully invested in securities meeting our investment objective.

       The investments we make in accordance with our investment objective may result in a higher amount of risk than alternative investment options and a higher risk of volatility or loss of principal. Our investments in portfolio companies involve higher levels of risk, and therefore, an investment in our securities may not be suitable for someone with lower risk tolerance.

       Fluctuations in the trading prices of our securities may adversely affect the liquidity of the trading market for our securities and, if we seek to raise capital through future securities offerings, our ability to raise such capital. The market price and liquidity of the market for our securities may be significantly affected by numerous factors, some of which are beyond our control and may not be directly related to our operating performance. These factors include:

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       The Maryland General Corporation Law and our articles of incorporation and bylaws contain provisions that may have the effect of discouraging, delaying or making difficult a change in control of our company or the removal of our incumbent directors. The existence of these provisions, among others, may have a negative impact on the price of our common stock and may discourage third-party bids for ownership of our company. These provisions may prevent any premiums being offered to you for our common stock.

       The Notes are not secured by any of our assets or any of the assets of our subsidiaries and rank equally in right of payment with all of our existing and future unsubordinated, unsecured indebtedness. As a result, the Notes are effectively subordinated to any secured indebtedness we or our subsidiaries have currently incurred and may incur in the future (or any indebtedness that is initially unsecured to which we subsequently grant security) to the extent of the value of the assets securing such indebtedness. In any liquidation, dissolution, bankruptcy or other similar proceeding, the holders of any of our existing or future secured indebtedness and the secured indebtedness of our subsidiaries may assert rights against the assets pledged to secure that indebtedness in order to receive full payment of their indebtedness before the assets may be used to pay other creditors, including the holders of the Notes. As of December 31, 2016, we had $343.0 million outstanding under the Credit Facility out of $555.0 million in commitments. The indebtedness under the Credit Facility is senior to the Notes to the extent of the value of the assets securing such indebtedness.

       The Notes are obligations exclusively of Main Street Capital Corporation and not of any of our subsidiaries. None of our subsidiaries is a guarantor of the Notes, and the Notes are not required to be guaranteed by any subsidiaries we may acquire or create in the future. In addition, several of our subsidiaries, specifically the Funds, maintain significant indebtedness and as a result the Notes are structurally subordinated to the indebtedness of these subsidiaries. For example, as of December 31, 2016, the Funds had collectively issued $240.0 million of SBA-guaranteed debentures, which are included in our consolidated financial statements. The assets of such subsidiaries are not directly available to satisfy the claims of our creditors, including holders of the Notes. See "Management's Discussion and Analysis of Financial Condition and Results of Operations — Liquidity and Capital Resources" for more detail on the SBA-guaranteed debentures.

       Except to the extent we are a creditor with recognized claims against our subsidiaries, all claims of other creditors of our subsidiaries have priority over our equity interests in such subsidiaries (and therefore the claims of our creditors, including holders of the Notes) with respect to the assets of such subsidiaries. Even if we are recognized as a creditor of one or more of our subsidiaries, our claims would still be effectively subordinated to any security interests in the assets of any such subsidiary and to any indebtedness or other liabilities of any such subsidiary senior to our claims. Consequently, the Notes are structurally subordinated to all indebtedness, including the SBA-guaranteed debentures, and other liabilities of any of our subsidiaries and any subsidiaries that we may in the future acquire or establish. In addition, our subsidiaries may incur substantial additional indebtedness in the future, all of which would be structurally senior to the Notes.

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       The Notes may or may not have an established trading market. If a trading market in the Notes is developed, it may not be maintained. If the Notes are traded, they may trade at a discount to their initial offering price depending on prevailing interest rates, the market for similar securities, our credit ratings, our financial condition or other relevant factors. Accordingly, we cannot assure you that a liquid trading market has been or will develop for the Notes, that you will be able to sell your Notes at a particular time or that the price you receive when you sell will be favorable. To the extent an active trading market does not develop or is not maintained, the liquidity and trading price for the Notes may be harmed. Accordingly, you may be required to bear the financial risk of an investment in the Notes for an indefinite period of time.

       Our credit ratings are an assessment by rating agencies of our ability to pay our debts when due. Consequently, real or anticipated changes in our credit ratings will generally affect the market value of the Notes. These credit ratings may not reflect the potential impact of risks relating to the structure or marketing of the Notes. Credit ratings are not a recommendation to buy, sell or hold any security, and may be revised or withdrawn at any time by the issuing organization in its sole discretion. We undertake no obligation to maintain our credit ratings or to advise holders of Notes of any changes in our credit ratings. The 4.50% Notes are currently rated by Standard & Poor's Ratings Services. There can be no assurance that our credit ratings will remain for any given period of time or that such credit ratings will not be lowered or withdrawn entirely by the rating agency if in their judgment future circumstances relating to the basis of the credit ratings, such as adverse changes in our company, so warrant. The conditions of the financial markets and prevailing interest rates have fluctuated in the past and are likely to fluctuate in the future, which could have an adverse effect on the market prices of the Notes.

       The indentures under which the Notes were issued offer limited protection to holders of the Notes. The terms of the indentures and the Notes do not restrict our or any of our subsidiaries' ability to engage in, or otherwise be a party to, a variety of corporate transactions, circumstances or events that could have an adverse impact on investments in the Notes. In particular, the terms of the indentures and the Notes do not place any restrictions on our or our subsidiaries' ability to:

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       Furthermore, the terms of the indentures and the Notes do not protect holders of the Notes in the event that we experience changes (including significant adverse changes) in our financial condition, results of operations or credit ratings, if any, as they do not require that we or our subsidiaries adhere to any financial tests or ratios or specified levels of net worth, revenues, income, cash flow or liquidity.

       Our ability to recapitalize, incur additional debt and take a number of other actions that are not limited by the terms of the Notes may have important consequences for you as a holder of the Notes, including making it more difficult for us to satisfy our obligations with respect to the Notes or negatively affecting the trading value of the Notes.

       Other debt we issue or incur in the future could contain more protections for its holders than the indentures and the Notes, including additional covenants and events of default. For example, the indentures under which the Notes are issued do not contain cross-default provisions that are contained in the Credit Facility. The issuance or incurrence of any such debt with incremental protections could affect the market for and trading levels and prices of the Notes.

       The 4.50% Notes are redeemable in whole or in part upon certain conditions at any time or from time to time at our option. The 6.125% Notes are redeemable in whole or in part upon certain conditions at any time or from time to time at our option, on or after April 1, 2018. We may choose to redeem the Notes at times when prevailing interest rates are lower than the interest rate paid on the Notes. In this circumstance, you may not be able to reinvest the redemption proceeds in a comparable security at an effective interest rate as high as the Notes being redeemed.

       We may not be able to repurchase the 4.50% Notes upon certain change in control events described in the indenture under which the 4.50% Notes were issued (each, a "Change of Control Repurchase Event") because we may not have sufficient funds. Upon a Change of Control Repurchase Event, holders of the 4.50% Notes may require us to repurchase for cash some or all of the 4.50% Notes at a repurchase price equal to 100% of the aggregate principal amount of the 4.50% Notes being repurchased, plus accrued and unpaid interest to, but not including, the repurchase date. The terms of our Credit Facility provide that certain change of control events will constitute an event of default thereunder entitling the lenders to accelerate any indebtedness outstanding under our Credit Facility at that time and to terminate the Credit Facility. In addition, the occurrence of a Change of Control Repurchase Event enabling the holders of the 4.50% Notes to require the mandatory purchase of the 4.50% Notes would constitute an event of default under our Credit Facility entitling the lenders to accelerate any indebtedness outstanding under our Credit Facility at that time and to terminate the Credit Facility. Our and our subsidiaries' future financing facilities may contain similar restrictions and provisions. Our failure to purchase such tendered 4.50% Notes upon the occurrence of such Change of Control Repurchase Event would cause an event of default under the indenture governing the 4.50% Notes and a cross-default under the agreements governing certain of our other indebtedness, which may result in the acceleration of such indebtedness requiring us to repay that indebtedness immediately. If a

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Change of Control Repurchase Event were to occur, we may not have sufficient funds to repay any such accelerated indebtedness.

       As of December 31, 2016, we had approximately $848.7 million of indebtedness, including $343.0 million outstanding under the Credit Facility, $240.0 million outstanding from SBA-guaranteed debentures, approximately $90.7 million of the 6.125% Notes and $175.0 million of the 4.50% Notes outstanding. Any default under the agreements governing our indebtedness, including a default under the Credit Facility, under the Notes or under other indebtedness to which we may be a party that is not waived by the required lenders or debt holders, and the remedies sought by the holders of such indebtedness could make us unable to pay principal, premium, if any, and interest on the Notes and substantially decrease the market value of the Notes. If we are unable to generate sufficient cash flow and are otherwise unable to obtain funds necessary to meet required payments of principal, premium, if any, and interest on our indebtedness, or if we otherwise fail to comply with the various covenants, including financial and operating covenants, in the instruments governing our indebtedness, we could be in default under the terms of the agreements governing such indebtedness. In the event of such default, the holders of such indebtedness could elect to declare all the funds borrowed thereunder to be due and payable, together with accrued and unpaid interest, the lenders under the Credit Facility or other debt we may incur in the future could elect to terminate their commitments, cease making further loans and institute foreclosure proceedings against our assets, and we could be forced into bankruptcy or liquidation. Our ability to generate sufficient cash flow in the future is, to some extent, subject to general economic, financial, competitive, legislative and regulatory factors as well as other factors that are beyond our control. We cannot assure you that our business will generate cash flow from operations, or that future borrowings will be available to us under the Credit Facility or otherwise, in an amount sufficient to enable us to meet our payment obligations under the Notes and our other debt and to fund other liquidity needs.

       If our operating performance declines and we are not able to generate sufficient cash flow to service our debt obligations, we may in the future need to refinance or restructure our debt, including the Notes, sell assets, reduce or delay capital investments, seek to raise additional capital or seek to obtain waivers from the required lenders under the Credit Facility or the required holders of the Notes or other debt that we may incur in the future to avoid being in default. If we are unable to implement one or more of these alternatives, we may not be able to meet our payment obligations under the Notes and our other debt. If we breach our covenants under the Credit Facility, the Notes or other debt and seek a waiver, we may not be able to obtain a waiver from the required lenders or debt holders. If this occurs, we would be in default under the Credit Facility, the Notes or other debt, the lenders or debt holders could exercise their rights as described above, and we could be forced into bankruptcy or liquidation. If we are unable to repay debt, lenders having secured obligations could proceed against the collateral securing the debt. Because the Credit Facility has, and any future credit facilities will likely have, customary cross-default provisions, if the indebtedness under the Notes, the Credit Facility or under any future credit facility is accelerated, we may be unable to repay or finance the amounts due.

Item 1B.    Unresolved Staff Comments

       None.

Item 2.    Properties

       We do not own any real estate or other physical properties materially important to our operations. Currently, we lease office space in Houston, Texas for our corporate headquarters.

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Item 3.    Legal Proceedings

       We may, from time to time, be involved in litigation arising out of our operations in the normal course of business or otherwise. Furthermore, third parties may seek to impose liability on us in connection with the activities of our portfolio companies. While the outcome of any current legal proceedings cannot at this time be predicted with certainty, we do not expect any current matters will materially affect our financial condition or results of operations; however, there can be no assurance whether any pending legal proceedings will have a material adverse effect on our financial condition or results of operations in any future reporting period.

Item 4.    Mine Safety Disclosures

       Not applicable.

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PART II

Item 5.    Market for Registrant's Common Equity, Related Stockholder Matters and Issuer Purchases of Equity Securities

PRICE RANGE OF COMMON STOCK, HOLDERS AND DISTRIBUTIONS

       Our common stock is traded on the New York Stock Exchange ("NYSE") under the symbol "MAIN." Prior to October 14, 2010, our common stock was traded on the NASDAQ Global Select Market under the same symbol "MAIN." Our common stock began trading on the NASDAQ Global Select Market on October 5, 2007. Prior to that date, there was no established public trading market for our common stock.

       The following table sets forth, for each fiscal quarter during 2016 and 2015, the range of high and low closing prices of our common stock as reported on the NYSE.

 
  High   Low  

Fiscal year 2016

             

Fourth quarter

  $ 37.36   $ 32.23  

Third quarter

    34.59     32.61  

Second quarter

    32.90     30.52  

First quarter

    31.46     26.35  

Fiscal year 2015

             

Fourth quarter

  $ 32.28   $ 27.69  

Third quarter

    33.08     26.38  

Second quarter

    32.59     30.47  

First quarter

    31.47     27.87  

       On February 23, 2017, the last sale price of our common stock on the NYSE was $37.43 per share, and there were approximately 255 holders of record of the common stock which did not include stockholders for whom shares are held in "nominee" or "street name."

       Shares of BDCs may trade at a market price that is less than the value of the net assets attributable to those shares. The possibility that our shares of common stock will trade at a discount from net asset value per share or at premiums that are unsustainable over the long term are separate and distinct from the risk that our net asset value per share will decrease. It is not possible to predict whether our common stock will trade at, above, or below net asset value per share. Since our IPO in October 2007, our shares of common stock have traded at prices both less than and exceeding our net asset value per share.

       We currently pay regular monthly dividends and semiannual supplemental dividends to our stockholders. Our monthly dividends, if any, will be determined by our Board of Directors on a quarterly basis. Our semiannual supplemental dividends, if any, will be determined by our Board of Directors based upon our undistributed taxable income. The following table summarizes our dividends declared to date:

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Date Declared
 
Record Date
 
Payment Date
 
Amount(1)
 

Fiscal year 2017

               

February 22, 2017

  May 19, 2017   June 14, 2017   $ 0.185  

February 22, 2017

  April 20, 2017   May 15, 2017   $ 0.185  

February 22, 2017

  March 21, 2017   April 13, 2017   $ 0.185  

November 2, 2016

  February 22, 2017   March 15, 2017   $ 0.185  

November 2, 2016

  January 20, 2017   February 15, 2017   $ 0.185  

November 2, 2016

  December 30, 2016   January 13, 2017   $ 0.185 (2)

          $ 1.110  

Fiscal year 2016

               

October 18, 2016

  December 16, 2016   December 23, 2016   $ 0.275 (2)

August 2, 2016

  November 21, 2016   December 13, 2016   $ 0.185 (2)

August 2, 2016

  October 20, 2016   November 15, 2016   $ 0.185 (2)

August 2, 2016

  September 21, 2016   October 14, 2016   $ 0.185 (2)

May 3, 2016

  August 19, 2016   September 15, 2016   $ 0.180 (2)

May 3, 2016

  July 21, 2016   August 15, 2016   $ 0.180 (2)

May 3, 2016

  July 1, 2016   July 15, 2016   $ 0.180 (2)

April 20, 2016

  June 20, 2016   June 27, 2016   $ 0.275 (2)

February 23, 2016

  May 20, 2016   June 15, 2016   $ 0.180 (2)

February 23, 2016

  April 21, 2016   May 16, 2016   $ 0.180 (2)

February 23, 2016

  March 21, 2016   April 15, 2016   $ 0.180 (2)

November 3, 2015

  February 22, 2016   March 15, 2016   $ 0.180 (2)

November 3, 2015

  January 22, 2016   February 17, 2016   $ 0.180 (2)

November 3, 2015

  December 30, 2015   January 15, 2016   $ 0.180 (3)

          $ 2.725  

Fiscal year 2015

               

October 20, 2015

  December 17, 2015   December 24, 2015   $ 0.275 (3)

August 3, 2015

  November 20, 2015   December 14, 2015   $ 0.180 (3)

August 3, 2015

  October 21, 2015   November 16, 2015   $ 0.180 (3)

August 3, 2015

  September 21, 2015   October 15, 2015   $ 0.180 (3)

May 5, 2015

  August 20, 2015   September 15, 2015   $ 0.175 (3)

May 5, 2015

  July 21, 2015   August 14, 2015   $ 0.175 (3)

May 5, 2015

  July 1, 2015   July 15, 2015   $ 0.175 (3)

April 22, 2015

  June 18, 2015   June 25, 2015   $ 0.275 (3)

February 24, 2015

  May 20, 2015   June 15, 2015   $ 0.175 (3)

February 24, 2015

  April 21, 2015   May 15, 2015   $ 0.175 (3)

February 24, 2015

  March 20, 2015   April 15, 2015   $ 0.175 (3)

November 6, 2014

  February 20, 2015   March 16, 2015   $ 0.170 (3)

November 6, 2014

  January 21, 2015   February 13, 2015   $ 0.170 (3)

November 6, 2014

  December 31, 2014   January 15, 2015   $ 0.170 (4)

Total

          $ 2.650  

Fiscal year 2014

               

October 23, 2014

  December 18, 2014   December 24, 2014   $ 0.275 (4)

August 4, 2014

  November 20, 2014   December 15, 2014   $ 0.170 (4)

August 4, 2014

  October 20, 2014   November 14, 2014   $ 0.170 (4)

August 4, 2014

  September 19, 2014   October 15, 2014   $ 0.170 (4)

May 6, 2014

  August 20, 2014   September 15, 2014   $ 0.165 (4)

May 6, 2014

  July 21, 2014   August 15, 2014   $ 0.165 (4)

May 6, 2014

  June 30, 2014   July 15, 2014   $ 0.165 (4)

April 21, 2014

  June 20, 2014   June 25, 2014   $ 0.275 (4)

February 26, 2014

  May 21, 2014   June 16, 2014   $ 0.165 (4)

February 26, 2014

  April 20, 2014   May 15, 2014   $ 0.165 (4)

February 26, 2014

  March 21, 2014   April 15, 2014   $ 0.165 (4)

November 6, 2013

  February 20, 2014   March 14, 2014   $ 0.165 (4)

November 6, 2013

  January 21, 2014   February 14, 2014   $ 0.165 (4)

November 6, 2013

  December 30, 2013   January 15, 2014   $ 0.165 (5)

Total

          $ 2.545  

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Amount(1)
 

Fiscal year 2013

               

Total

          $ 2.660 (5),(6)

Fiscal year 2012

               

Total

          $ 1.710 (6),(7)

Fiscal year 2011

               

Total

          $ 1.560 (7)

Fiscal year 2010

               

Total

          $ 1.500 (8)

Fiscal year 2009

               

Total

          $ 1.500 (9),(10)

Fiscal year 2008

               

Total

          $ 1.425 (10)

Fiscal year 2007

               

Total

          $ 0.330 (11)

Cumulative dividends declared or paid

          $ 19.715  

(1)
The determination of the tax attributes of Main Street's distributions is made annually, based upon its taxable income for the full year and distributions paid for the full year. Ordinary dividend distributions from a RIC do not qualify for the tax rate applicable to "qualified dividend income" from domestic corporations and qualified foreign corporations, except to the extent that the RIC received the income in the form of qualifying dividends from domestic corporations and qualified foreign corporations.

(2)
These dividends attributable to fiscal year 2016 were comprised of ordinary income of $1.911 per share, long term capital gain of $0.761 per share, and qualified dividend income of $0.058 per share, and included dividends with a record date during fiscal year 2016, including the dividend declared and accrued as of December 31, 2016 and paid on January 13, 2017, pursuant to the Code.

(3)
These dividends attributable to fiscal year 2015 were comprised of ordinary income of $2.325 per share, long term capital gain of $0.231 per share, and qualified dividend income of $0.105 per share, and included dividends with a record date during fiscal year 2015, including the dividend declared and accrued as of December 31, 2015 and paid on January 15, 2016, pursuant to the Code.

(4)
These dividends attributable to fiscal year 2014 were comprised of ordinary income of $2.083 per share, long term capital gain of $0.419 per share, and qualified dividend income of $0.048 per share, and included dividends with a record date during fiscal year 2014, including the dividend declared and accrued as of December 31, 2014 and paid on January 15, 2015, pursuant to the Code.

(5)
These dividends attributable to fiscal year 2013 were comprised of ordinary income of $1.872 per share, long term capital gain of $0.346 per share, and qualified dividend income of $0.457 per share, and included dividends with a record date during fiscal year 2013, including the dividend declared and accrued as of December 31, 2013 and paid on January 15, 2014, pursuant to the Code.

(6)
These dividends attributable to fiscal year 2012 were comprised of ordinary income of $0.923 per share, long term capital gain of $0.748 per share, and qualified dividend income of $0.054 per share, and included dividends with a record date during fiscal year 2012, including the dividend declared and accrued as of December 31, 2012 and paid on January 15, 2013, pursuant to the Code.

(7)
These dividends attributable to fiscal year 2011 were comprised of ordinary income of $1.253 per share, long term capital gain of $0.373 per share, and qualified dividend income of $0.069 per share, and included dividends with a record date during fiscal year 2011, including the dividend declared and accrued as of December 31, 2011 and paid on January 16, 2012, pursuant to the Code.

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(8)
These dividends attributable to fiscal year 2010 were comprised of ordinary income of $1.220 per share, long term capital gain of $0.268 per share, and qualified dividend income of $0.012 per share.

(9)
These dividends attributable to fiscal year 2009 were comprised of ordinary income of $1.218 per share and long term capital gain of $0.157 per share and excluded the $0.125 paid on January 15, 2009 which had been declared and accrued as of December 31, 2008.

(10)
These dividends attributable to fiscal year 2008 were comprised of ordinary income of $0.953 per share and long term capital gain of $0.597 per share, and included dividends with a record date during fiscal year 2008, including the $0.125 per share dividend declared and accrued as of December 31, 2008 and paid on January 15, 2009, pursuant to the Code.

(11)
This quarterly dividend attributable to fiscal year 2007 was comprised of ordinary income of $0.105 per share and long term capital gain of $0.225 per share.

       In accordance with the IRC sections 871(k) and 881(e), the following percentages represent the portion of our dividends that constitute interest-related dividends and short-term capital gains dividends for non-U.S. residents and foreign corporations.

       Including the long-term capital gains discussed above, the following percentages represent the total dividends which are exempt from United States withholding tax.

Payment Dates
  Interest-Related Dividends
and Short-Term
Capital Gain Dividend
  Distributions Exempt
from U.S.
Withholding Tax(1)
 

2/17/2016

    68.96 %   75.79 %

From 3/15/2016 to 5/16/2016

    75.79 %   75.79 %

From 6/15/2016 to 6/27/2016

    75.00 %   75.00 %

7/15/2016

    0.00 %   75.00 %

8/15/2016

    0.00 %   92.75 %

9/15/2016

    0.00 %   100.00 %

From 10/14/2016 to 11/15/2016

    0.00 %   70.00 %

12/13/2016

    66.06 %   70.00 %

From 12/23/2016 to 1/13/2017

    70.00 %   70.00 %

       To the extent non-U.S. resident taxes were withheld on ordinary dividends distributed, this information may be considered in connection with any claims for refund of such taxes to be filed by the non-U.S. resident shareholder with the Internal Revenue Service.

       To obtain and maintain RIC tax treatment, we must, among other things, distribute at least 90% of our net ordinary taxable income and realized net short-term capital gains in excess of realized net long-term capital losses, if any. We will be subject to a 4% non-deductible U.S. federal excise tax on certain undistributed taxable income unless we distribute in a timely manner an amount at least equal to the sum of (1) 98% of our net ordinary taxable income for each calendar year, (2) 98.2% of our capital gain net income for the one-year period ending December 31 in that calendar year and (3) any taxable income recognized, but not distributed, in preceding years on which we paid no U.S. federal income tax. Dividends declared and paid by us in a year will generally differ from taxable income for that year, as such dividends may include the distribution of current year taxable income, less amounts carried over into the following year, and the distribution of prior year taxable income carried over into and distributed in the current year. For amounts we carry over into the following year, we will be required to pay a 4% U.S. federal excise tax on the amount by which 98% of our annual ordinary taxable income and 98.2% of capital gains exceeds our distributions for the year. We may retain for investment some or all of our net capital gains (i.e., realized net long-term capital gains in excess of realized net short-term capital losses) and treat such amounts as deemed distributions to our stockholders. If we do this, our stockholders will be treated as if they had received actual distributions of the capital gains we retained and then reinvested the net after-tax proceeds in our common stock. In general,

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our stockholders also would be eligible to claim a tax credit (or, in certain circumstances, a tax refund) equal to their allocable shares of the tax we paid on the capital gains deemed distributed to them. We can offer no assurance that we will achieve results that will permit the payment of any cash distributions and, if we issue senior securities, we may be prohibited from making distributions if doing so causes us to fail to maintain the asset coverage ratios stipulated by the 1940 Act or if distributions are limited by the terms of any of our borrowings.

       We may distribute taxable dividends that are payable in part in our stock. Under certain applicable provisions of the Code and the Treasury regulations, distributions payable by us in cash or in shares of stock (at the stockholders election) would satisfy the Annual Distribution Requirement. The IRS has issued private letter rulings providing that a dividend payable in stock or in cash at the election of the stockholders will be treated as a taxable dividend eligible for the dividends paid deduction provided that at least 20% of the total dividend is payable in cash and certain other requirements are satisfied. Taxable stockholders receiving such dividends will be required to include the full amount of the dividend as ordinary income (or as long-term capital gain to the extent such dividend is properly reported as a capital gain dividend), to the extent of our current and accumulated earnings and profits for U.S. federal income tax purposes. As a result, a U.S. stockholder may be required to pay tax with respect to such dividends in excess of any cash received. If a U.S. stockholder sells the stock it receives as a dividend in order to pay this tax, the sales proceeds may be less than the amount included in income with respect to the dividend, depending on the market price of our stock at the time of the sale. Furthermore, with respect to non-U.S. stockholders, we may be required to withhold U.S. tax with respect to such dividends, including in respect of all or a portion of such dividend that is payable in stock. In addition, if a significant number of our stockholders determine to sell shares of our stock in order to pay taxes owed on dividends, it may put downward pressure on the trading price of our stock.

       We have adopted a dividend reinvestment plan ("DRIP") that provides for the reinvestment of dividends on behalf of our stockholders, unless a stockholder has elected to receive dividends in cash. As a result, if we declare a cash dividend, our stockholders who have not "opted out" of the DRIP by the dividend record date will have their cash dividend automatically reinvested into additional shares of MSCC common stock. The share requirements of the DRIP may be satisfied through the issuance of new shares of common stock or through open market purchases of common stock by the DRIP plan administrator. Newly issued shares will be valued based upon the final closing price of MSCC's common stock on a valuation date determined for each dividend by our Board of Directors. Shares purchased in the open market to satisfy the DRIP requirements will be valued based upon the average price of the applicable shares purchased by the DRIP plan administrator, before any associated brokerage or other costs.

SALES OF UNREGISTERED SECURITIES

       During the year ended December 31, 2016, we issued a total of 434,631 shares of our common stock under the DRIP. These issuances were not subject to the registration requirements of the Securities Act of 1933, as amended. The aggregate value of the shares of our common stock issued under the DRIP during 2016 was approximately $14.1 million.

PURCHASES OF EQUITY SECURITIES

       None.

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STOCK PERFORMANCE GRAPH

       The following graph compares the stockholder return on our common stock from October 5, 2007 to December 31, 2016 with the S&P 500 Index, the Russell 2000 Index, the KBW Regional Bank Index and the Main Street Peer Group index (as defined below). This comparison assumes $100.00 was invested on October 5, 2007 (the date our common stock began to trade in connection with our initial public offering) in our common stock and in the comparison groups and assumes the reinvestment of all cash dividends prior to any tax effect. The comparisons in the graph below are based on historical data and are not intended to forecast the possible future performance of our common stock.


COMPARISON OF STOCKHOLDER RETURN(1)
Among Main Street Capital Corporation, the S&P 500 Index, the Russell 2000 Index, the KBW
Regional Bank Index, and the Main Street Peer Group(2)
(For the Period October 5, 2007 to December 31, 2016)

GRAPHIC

(1)
Total return includes reinvestment of dividends through December 31, 2016.

(2)
The Main Street Peer Group is composed of American Capital, Ltd., Apollo Investment Corporation, Ares Capital Corporation, BlackRock Capital Investment Corporation, Capitala Finance Corp., Fifth Street Finance Corp., Fifth Street Senior Floating Rate Corp., FS Investment Corporation, Gladstone Investment Corporation, Golub Capital BDC, Inc., Hercules Capital, Inc., Medallion Financial Corp., Medley Capital Corporation, MVC Capital, Inc., New Mountain Finance Corporation, PennantPark Investment Corporation, Prospect Capital Corporation, Solar Capital Ltd., TCP Capital Corp., THL Credit, Inc., TICC Capital Corp., TPG Specialty Lending, Inc. and Triangle Capital Corporation.

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Item 6.    Selected Financial Data

       The selected financial and other data as of and for the years ended December 31, 2016, 2015, 2014, 2013 and 2012 have been derived from consolidated financial statements that have been audited by Grant Thornton LLP, an independent registered public accounting firm. You should read this selected financial and other data in conjunction with our "Management's Discussion and Analysis of Financial Condition and Results of Operations" and the consolidated financial statements and related notes included in this Annual Report on Form 10-K.

 
  Twelve Months Ended December 31,  
 
  2016   2015   2014   2013   2012  
 
  (dollars in thousands, except per share amounts)
 

Statement of operations data:

                               

Investment income:

                               

Total interest, fee and dividend income

  $ 178,165   $ 163,603   $ 139,939   $ 115,158   $ 88,858  

Interest from idle funds and other

    174     986     824     1,339     1,662  

Total investment income

    178,339     164,589     140,763     116,497     90,520  

Expenses:

                               

Interest

    (33,630 )   (32,115 )   (23,589 )   (20,238 )   (15,631 )

Compensation

    (16,408 )   (14,852 )   (12,337 )   (8,560 )    

General and administrative

    (9,284 )   (8,621 )   (7,134 )   (4,877 )   (2,330 )

Share-based compensation

    (8,304 )   (6,262 )   (4,215 )   (4,210 )   (2,565 )

Expenses charged to the External Investment Manager

    5,089     4,335     2,048          

Expenses reimbursed to MSCP(1)

                (3,189 )   (10,669 )

Total expenses

    (62,537 )   (57,515 )   (45,227 )   (41,074 )   (31,195 )

Net investment income

    115,802     107,074     95,536     75,423     59,325  

Total net realized gain (loss) from investments

    29,389     (21,316 )   23,206     7,277     16,479  

Total net realized loss from SBIC debentures

                (4,775 )    

Total net change in unrealized appreciation (depreciation) from investments

    (6,576 )   10,871     (776 )   14,503     44,464  

Total net change in unrealized appreciation (depreciation) from SBIC debentures and investment in MSCP(1)

    (943 )   (879 )   (10,931 )   4,392     (5,004 )

Income tax benefit (provision)

    1,227     8,687     (6,287 )   35     (10,820 )

Net increase in net assets resulting from operations

    138,899     104,437     100,748     96,855     104,444  

Noncontrolling interest

                    (54 )

Net increase in net assets resulting from operations attributable to common stock

  $ 138,899   $ 104,437   $ 100,748   $ 96,855   $ 104,390  

Net investment income per share — basic and diluted

  $ 2.23   $ 2.18   $ 2.20   $ 2.06   $ 2.01  

Net increase in net assets resulting from operations attributable to common stock per share — basic and diluted

  $ 2.67   $ 2.13   $ 2.31   $ 2.65   $ 3.53  

Weighted-average shares outstanding — basic and diluted

    52,025,002     49,071,492     43,522,397     36,617,850     29,540,114  

(1)
Main Street Capital Partners, LLC

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  As of December 31,  
 
  2016   2015   2014   2013   2012  
 
  (dollars in thousands)
 

Balance sheet data:

                               

Assets:

                               

Total portfolio investments at fair value

  $ 1,996,906   $ 1,799,996   $ 1,563,330   $ 1,286,188   $ 924,431  

Marketable securities and idle funds investments

        3,693     9,067     13,301     28,535  

Cash and cash equivalents

    24,480     20,331     60,432     34,701     63,517  

Interest receivable and other assets

    37,123     37,638     46,406     16,054     14,580  

Deferred financing costs, net of accumulated amortization          

    12,645     13,267     14,550     9,931     5,162  

Deferred tax asset, net

    9,125     4,003              

Total assets

  $ 2,080,279   $ 1,878,928   $ 1,693,785   $ 1,360,175   $ 1,036,225  

Liabilities and net assets:

                               

Credit facility

  $ 343,000   $ 291,000   $ 218,000   $ 237,000   $ 132,000  

SBIC debentures at fair value(1)

    239,603     223,660     222,781     187,050     211,467  

4.50% Notes

    175,000     175,000     175,000          

6.125% Notes

    90,655     90,738     90,823     90,882      

Accounts payable and other liabilities

    14,205     12,292     10,701     10,549     8,593  

Payable for securities purchased

    2,184     2,311     14,773     27,088     20,661  

Interest payable

    4,103     3,959     4,848     2,556     3,562  

Dividend payable

    10,048     9,074     7,663     6,577     5,188  

Deferred tax liability, net

            9,214     5,940     11,778  

Total liabilities

    878,798     808,034     753,803     567,642     393,249  

Total net asset value

    1,201,481     1,070,894     939,982     792,533     642,976  

Total liabilities and net assets

  $ 2,080,279   $ 1,878,928   $ 1,693,785   $ 1,360,175   $ 1,036,225  

Other data:

                               

Weighted-average effective yield on LMM debt investments(2)

    12.5 %   12.2 %   13.2 %   14.7 %   14.3 %

Number of LMM portfolio companies

    73     71     66     62     56  

Weighted-average effective yield on Middle Market debt investments(2)

    8.5 %   8.0 %   7.8 %   7.8 %   8.0 %

Number of Middle Market portfolio companies

    78     86     86     92     79  

Weighted-average effective yield on Private Loan debt investments(2)

    9.6 %   9.5 %   10.1 %   11.3 %   14.8 %

Number of Private Loan portfolio companies

    46     40     31     15     9  

Expense ratios (as percentage of average net assets):

                               

Total expenses, including income tax expense

    5.5 %   4.6 %   5.8 %   5.8 %   8.2 %(3)

Operating expenses

    5.6 %   5.5 %   5.1 %   5.8 %   6.1 %(3)

Operating expenses, excluding interest expense

    2.6 %   2.4 %   2.4 %   3.0 %   3.0 %(3)

(1)
SBIC debentures for December 31, 2016, 2015, 2014, 2013, and 2012 are $240,000, $225,000, $225,000, $200,200, and $225,000 at par, respectively, with par of $75,200 for December 31, 2016, 2015, 2014 and 2013, and $100,000 for December 31, 2012 recorded at fair value of $74,803, $73,860, $72,981, $62,050, and $86,467 , as of December 31, 2016, 2015, 2014, 2013, and 2012, respectively.

(2)
Weighted-average effective yield is calculated based on our debt investments at the end of each period and includes amortization of deferred debt origination fees and accretion of original issue discount, but excludes liquidation fees payable upon repayment and any debt investments on non-accrual status.

(3)
Ratios are net of amounts attributable to MSC II non-controlling interest.

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Item 7.    Management's Discussion and Analysis of Financial Condition and Results of Operations

       The following discussion should be read in conjunction with our consolidated financial statements and the notes thereto included elsewhere in this Annual Report on Form 10-K.

       Statements we make in the following discussion which express a belief, expectation or intention, as well as those that are not historical fact, are forward-looking statements that are subject to risks, uncertainties and assumptions. Our actual results, performance or achievements, or industry results, could differ materially from those we express in the following discussion as a result of a variety of factors, including the risks and uncertainties we have referred to under the headings "Cautionary Statement Concerning Forward-Looking Statements" and "Risk Factors" in Part I of this report.

ORGANIZATION

       Main Street Capital Corporation ("MSCC") is a principal investment firm primarily focused on providing customized debt and equity financing to lower middle market ("LMM") companies and debt capital to middle market ("Middle Market") companies. The portfolio investments of MSCC and its consolidated subsidiaries are typically made to support management buyouts, recapitalizations, growth financings, refinancings and acquisitions of companies that operate in diverse industry sectors. MSCC seeks to partner with entrepreneurs, business owners and management teams and generally provides "one stop" financing alternatives within its LMM portfolio. MSCC and its consolidated subsidiaries invest primarily in secured debt investments, equity investments, warrants and other securities of LMM companies based in the United States and in secured debt investments of Middle Market companies generally headquartered in the United States.

       MSCC was formed in March 2007 to operate as an internally managed business development company ("BDC") under the Investment Company Act of 1940, as amended (the "1940 Act"). MSCC wholly owns several investment funds, including Main Street Mezzanine Fund, LP ("MSMF"), Main Street Capital II, LP ("MSC II") and Main Street Capital III, LP ("MSC III" and, collectively with MSMF and MSC II, the "Funds"), and each of their general partners. The Funds are each licensed as a Small Business Investment Company ("SBIC") by the United States Small Business Administration ("SBA"). Because MSCC is internally managed, all of the executive officers and other employees are employed by MSCC. Therefore, MSCC does not pay any external investment advisory fees, but instead directly incurs the operating costs associated with employing investment and portfolio management professionals.

       MSC Adviser I, LLC (the "External Investment Manager") was formed in November 2013 as a wholly owned subsidiary of MSCC to provide investment management and other services to parties other than MSCC and its subsidiaries or their portfolio companies ("External Parties") and receive fee income for such services. MSCC has been granted no-action relief by the Securities and Exchange Commission ("SEC") to allow the External Investment Manager to register as a registered investment adviser under Investment Advisers Act of 1940, as amended. Since the External Investment Manager conducts all of its investment management activities for External Parties, it is accounted for as a portfolio investment of MSCC and is not included as a consolidated subsidiary of MSCC in MSCC's consolidated financial statements.

       MSCC has elected to be treated for U.S. federal income tax purposes as a regulated investment company ("RIC") under Subchapter M of the Internal Revenue Code of 1986, as amended (the "Code"). As a result, MSCC generally will not pay corporate-level U.S. federal income taxes on any net ordinary taxable income or capital gains that it distributes to its stockholders.

       MSCC has certain direct and indirect wholly owned subsidiaries that have elected to be taxable entities (the "Taxable Subsidiaries"). The primary purpose of the Taxable Subsidiaries is to permit MSCC to hold equity investments in portfolio companies which are "pass-through" entities for tax purposes. The External Investment Manager is also a direct wholly owned subsidiary that has elected to be a taxable entity. The Taxable Subsidiaries and the External Investment Manager are each taxed at their normal corporate tax rates based on their taxable income.

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       Unless otherwise noted or the context otherwise indicates, the terms "we," "us," "our," the "Company" and "Main Street" refer to MSCC and its consolidated subsidiaries, which include the Funds and the Taxable Subsidiaries.

OVERVIEW

       Our principal investment objective is to maximize our portfolio's total return by generating current income from our debt investments and capital appreciation from our equity and equity-related investments, including warrants, convertible securities and other rights to acquire equity securities in a portfolio company. Our LMM companies generally have annual revenues between $10 million and $150 million, and our LMM portfolio investments generally range in size from $5 million to $50 million. Our Middle Market investments are made in businesses that are generally larger in size than our LMM portfolio companies, with annual revenues typically between $150 million and $1.5 billion, and our Middle Market investments generally range in size from $3 million to $15 million. Our private loan ("Private Loan") portfolio investments are primarily debt securities in privately held companies which have been originated through strategic relationships with other investment funds on a collaborative basis. Private Loan investments are typically similar in size, structure, terms and conditions to investments we hold in our LMM portfolio and Middle Market portfolio.

       We seek to fill the financing gap for LMM businesses, which, historically, have had more limited access to financing from commercial banks and other traditional sources. The underserved nature of the LMM creates the opportunity for us to meet the financing needs of LMM companies while also negotiating favorable transaction terms and equity participations. Our ability to invest across a company's capital structure, from secured loans to equity securities, allows us to offer portfolio companies a comprehensive suite of financing options, or a "one stop" financing solution. Providing customized, "one stop" financing solutions is important to LMM portfolio companies. We generally seek to partner directly with entrepreneurs, management teams and business owners in making our investments. Our LMM portfolio debt investments are generally secured by a first lien on the assets of the portfolio company and typically have a term of between five and seven years from the original investment date.

       Our Middle Market portfolio investments primarily consist of direct investments in or secondary purchases of interest-bearing debt securities in privately held companies that are generally larger in size than the companies included in our LMM portfolio. Our Middle Market portfolio debt investments are generally secured by either a first or second priority lien on the assets of the portfolio company and typically have an expected duration of between three and seven years from the original investment date.

       Our Private Loan portfolio investments are primarily debt securities in privately held companies which have been originated through strategic relationships with other investment funds on a collaborative basis, and are often referred to in the debt markets as "club deals." Private Loan investments are typically similar in size, structure, terms and conditions to investments we hold in our LMM portfolio and Middle Market portfolio. Our Private Loan portfolio debt investments are generally secured by either a first or second priority lien on the assets of the portfolio company and typically have a term of between three and seven years from the original investment date.

       Our other portfolio ("Other Portfolio") investments primarily consist of investments which are not consistent with the typical profiles for our LMM, Middle Market or Private Loan portfolio investments, including investments which may be managed by third parties. In our Other Portfolio, we may incur indirect fees and expenses in connection with investments managed by third parties, such as investments in other investment companies or private funds.

       Our external asset management business is conducted through the External Investment Manager. The External Investment Manager earns management fees based on the assets of the funds under management and may earn incentive fees, or a carried interest, based on the performance of the funds managed. We have entered into an agreement with the External Investment Manager to share employees in connection with its asset management business generally, and specifically for its relationship with HMS Income Fund, Inc. ("HMS Income"). Through this agreement, we share employees with the External Investment Manager,

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including their related infrastructure, business relationships, management expertise and capital raising capabilities.

       The following tables provide a summary of our investments in the LMM, Middle Market and Private Loan portfolios as of December 31, 2016 and 2015 (this information excludes the Other Portfolio investments and the External Investment Manager which are discussed further below):

 
  As of December 31, 2016  
 
  LMM(a)   Middle Market   Private Loan  
 
  (dollars in millions)
 

Number of portfolio companies

    73     78     46  

Fair value

  $ 892.6   $ 630.6   $ 342.9  

Cost

  $ 760.3   $ 646.8   $ 357.7  

% of portfolio at cost — debt

    69.1%     97.2%     93.5%  

% of portfolio at cost — equity

    30.9%     2.8%     6.5%  

% of debt investments at cost secured by first priority lien

    92.1%     89.1%     89.0%  

Weighted-average annual effective yield(b)

    12.5%     8.5%     9.6%  

Average EBITDA(c)

  $ 5.9   $ 98.6   $ 22.7  

(a)
At December 31, 2016, we had equity ownership in approximately 99% of our LMM portfolio companies, and the average fully diluted equity ownership in those portfolio companies was approximately 36%.

(b)
The weighted-average annual effective yields were computed using the effective interest rates for all debt investments at cost as of December 31, 2016, including amortization of deferred debt origination fees and accretion of original issue discount but excluding fees payable upon repayment of the debt instruments and any debt investments on non-accrual status. Weighted-average annual effective yield is higher than what an investor in shares of our common stock will realize on its investment because it does not reflect our expenses or any sales load paid by an investor.

(c)
The average EBITDA is calculated using a simple average for the LMM portfolio and a weighted-average for the Middle Market and Private Loan portfolios. These calculations exclude certain portfolio companies, including five LMM portfolio companies, one Middle Market portfolio company and three Private Loan portfolio companies, as EBITDA is not a meaningful valuation metric for our investments in these portfolio companies.

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  As of December 31, 2015  
 
  LMM(a)   Middle Market   Private Loan  
 
  (dollars in millions)
 

Number of portfolio companies

    71     86     40  

Fair value

  $ 862.7   $ 586.9   $ 248.3  

Cost

  $ 685.6   $ 637.2   $ 268.6  

% of portfolio at cost — debt

    70.4%     98.3%     94.3%  

% of portfolio at cost — equity

    29.6%     1.7%     5.7%  

% of debt investments at cost secured by first priority lien

    91.8%     86.6%     87.3%  

Weighted-average annual effective yield(b)

    12.2%     8.0%     9.5%  

Average EBITDA(c)

  $ 6.0   $ 98.8   $ 13.1  

(a)
At December 31, 2015, we had equity ownership in approximately 96% of our LMM portfolio companies, and the average fully diluted equity ownership in those portfolio companies was approximately 36%.

(b)
The weighted-average annual effective yields were computed using the effective interest rates for all debt investments at cost as of December 31, 2015, including amortization of deferred debt origination fees and accretion of original issue discount but excluding fees payable upon repayment of the debt instruments and any debt investments on non-accrual status. Weighted-average annual effective yield is higher than what an investor in shares of our common stock will realize on its investment because it does not reflect our expenses or any sales load paid by an investor.

(c)
The average EBITDA is calculated using a simple average for the LMM portfolio and a weighted-average for the Middle Market and Private Loan portfolios. These calculations exclude certain portfolio companies, including five LMM portfolio companies, three Middle Market portfolio companies and six Private Loan portfolio companies, as EBITDA is not a meaningful valuation metric for our investments in these portfolio companies, and those portfolio companies whose primary purpose is to own real estate.

       As of December 31, 2016, we had Other Portfolio investments in ten companies, collectively totaling approximately $100.3 million in fair value and approximately $107.1 million in cost basis and which comprised approximately 5.0% of our Investment Portfolio (as defined in "— Critical Accounting Policies — Basis of Presentation" below) at fair value. As of December 31, 2015, we had Other Portfolio investments in ten companies, collectively totaling approximately $74.8 million in fair value and approximately $75.2 million in cost basis and which comprised approximately 4.2% of our Investment Portfolio at fair value.

       As previously discussed, the External Investment Manager is a wholly owned subsidiary that is treated as a portfolio investment. As of December 31, 2016, there was no cost basis in this investment and the investment had a fair value of approximately $30.6 million, which comprised approximately 1.5% of our Investment Portfolio at fair value. As of December 31, 2015, there was no cost basis in this investment and the investment had a fair value of approximately $27.3 million, which comprised approximately 1.5% of our Investment Portfolio at fair value.

       Our portfolio investments are generally made through MSCC and the Funds. MSCC and the Funds share the same investment strategies and criteria, although they are subject to different regulatory regimes. An investor's return in MSCC will depend, in part, on the Funds' investment returns as they are wholly owned subsidiaries of MSCC.

       The level of new portfolio investment activity will fluctuate from period to period based upon our view of the current economic fundamentals, our ability to identify new investment opportunities that meet our investment criteria, and our ability to consummate the identified opportunities. The level of new investment activity, and associated interest and fee income, will directly impact future investment income. In addition, the level of dividends paid by portfolio companies and the portion of our portfolio debt investments on non-accrual status will directly impact future investment income. While we intend to grow our portfolio and

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our investment income over the long term, our growth and our operating results may be more limited during depressed economic periods. However, we intend to appropriately manage our cost structure and liquidity position based on applicable economic conditions and our investment outlook. The level of realized gains or losses and unrealized appreciation or depreciation on our investments will also fluctuate depending upon portfolio activity, economic conditions and the performance of our individual portfolio companies. The changes in realized gains and losses and unrealized appreciation or depreciation could have a material impact on our operating results.

       Because we are internally managed, we do not pay any external investment advisory fees, but instead directly incur the operating costs associated with employing investment and portfolio management professionals. We believe that our internally managed structure provides us with a beneficial operating expense structure when compared to other publicly traded and privately held investment firms which are externally managed, and our internally managed structure allows us the opportunity to leverage our non-interest operating expenses as we grow our Investment Portfolio. For the years ended December 31, 2016 and 2015, the ratio of our total operating expenses, excluding interest expense, as a percentage of our quarterly average total assets was 1.5% and 1.4%, respectively.

       During May 2012, we entered into an investment sub-advisory agreement with HMS Adviser, LP ("HMS Adviser"), which is the investment advisor to HMS Income, a non-listed BDC, to provide certain investment advisory services to HMS Adviser. In December 2013, after obtaining required no-action relief from the SEC to allow us to own a registered investment adviser, we assigned the sub-advisory agreement to the External Investment Manager since the fees received from such arrangement could otherwise have negative consequences on our ability to meet the source-of-income requirement necessary for us to maintain our RIC tax treatment. Under the investment sub-advisory agreement, the External Investment Manager is entitled to 50% of the base management fee and the incentive fees earned by HMS Adviser under its advisory agreement with HMS Income. Based upon several fee waiver agreements with HMS Income and HMS Adviser, the External Investment Manager did not begin accruing the base management fee and incentive fees, if any, until January 1, 2014. The External Investment Manager has conditionally agreed to waive a limited amount of the incentive fees otherwise earned. During the years ended December 31, 2016, 2015 and 2014, the External Investment Manager earned $9.5 million, $7.8 million and $2.8 million, respectively, of management fees (net of fees waived, if any) under the sub-advisory agreement with HMS Adviser.

       During April 2014, we received an exemptive order from the SEC permitting co-investments by us and HMS Income in certain negotiated transactions where co-investing would otherwise be prohibited under the 1940 Act. We have made, and in the future intend to continue to make, such co-investments with HMS Income in accordance with the conditions of the order. The order requires, among other things, that we and the External Investment Manager consider whether each such investment opportunity is appropriate for HMS Income and, if it is appropriate, to propose an allocation of the investment opportunity between us and HMS Income. Because the External Investment Manager may receive performance-based fee compensation from HMS Income, this may provide it an incentive to allocate opportunities to HMS Income instead of us. However, both we and the External Investment Manager have policies and procedures in place to manage this conflict.

CRITICAL ACCOUNTING POLICIES

       Our consolidated financial statements are prepared in accordance with generally accepted accounting principles in the United States of America ("U.S. GAAP"). For each of the periods presented herein, our consolidated financial statements include the accounts of MSCC and its consolidated subsidiaries. The Investment Portfolio, as used herein, refers to all of our investments in LMM portfolio companies, investments in Middle Market portfolio companies, Private Loan portfolio investments, Other Portfolio investments, and the investment in the External Investment Manager, but excludes all "Marketable securities and idle funds investments." "Marketable securities and idle funds investments" are classified as financial

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instruments and are reported separately on our consolidated balance sheets and consolidated schedules of investments due to the nature of such investments. Our results of operations and cash flows for the years ended December 31, 2016, 2015 and 2014 and financial position as of December 31, 2016 and 2015, are presented on a consolidated basis. The effects of all intercompany transactions between us and our consolidated subsidiaries have been eliminated in consolidation.

       Under regulations pursuant to Article 6 of Regulation S-X applicable to BDCs and Accounting Standards Codification ("ASC") 946, Financial Services — Investment Companies ("ASC 946"), we are precluded from consolidating other entities in which we have equity investments, including those in which we have a controlling interest, unless the other entity is another investment company. An exception to this general principle in ASC 946 occurs if we hold a controlling interest in an operating company that provides all or substantially all of its services directly to us or to any of our portfolio companies. Accordingly, as noted above, our consolidated financial statements include the financial position and operating results for the Funds and the Taxable Subsidiaries. We have determined that all of our portfolio investments do not qualify for this exception, including the investment in the External Investment Manager. Therefore, our Investment Portfolio is carried on the consolidated balance sheet at fair value with any adjustments to fair value recognized as "Net Change in Unrealized Appreciation (Depreciation)" on the consolidated statements of operations until the investment is realized, usually upon exit, resulting in any gain or loss being recognized as a "Net Realized Gain (Loss)."

       The most significant determination inherent in the preparation of our consolidated financial statements is the valuation of our Investment Portfolio and the related amounts of unrealized appreciation and depreciation. As of both December 31, 2016 and 2015, our Investment Portfolio valued at fair value represented approximately 96% of our total assets. We are required to report our investments at fair value. We follow the provisions of Financial Accounting Standards Board ("FASB") ASC 820, Fair Value Measurements and Disclosures ("ASC 820"). ASC 820 defines fair value, establishes a framework for measuring fair value, establishes a fair value hierarchy based on the quality of inputs used to measure fair value, and enhances disclosure requirements for fair value measurements. ASC 820 requires us to assume that the portfolio investment is to be sold in the principal market to independent market participants, which may be a hypothetical market. Market participants are defined as buyers and sellers in the principal market that are independent, knowledgeable and willing and able to transact. See "Note B.1. — Valuation of the Investment Portfolio" in the notes to consolidated financial statements for a detailed discussion of our investment portfolio valuation process and procedures.

       Due to the inherent uncertainty in the valuation process, our determination of fair value for our Investment Portfolio may differ materially from the values that would have been determined had a ready market for the securities existed. In addition, changes in the market environment, portfolio company performance and other events that may occur over the lives of the investments may cause the gains or losses ultimately realized on these investments to be materially different than the valuations currently assigned. We determine the fair value of each individual investment and record changes in fair value as unrealized appreciation or depreciation.

       Our Board of Directors has the final responsibility for overseeing, reviewing and approving, in good faith, our determination of the fair value for our Investment Portfolio and our valuation procedures, consistent with 1940 Act requirements. We believe our Investment Portfolio as of December 31, 2016 and 2015 approximates fair value as of those dates based on the markets in which we operate and other conditions in existence on those reporting dates.

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       We record interest and dividend income on the accrual basis to the extent amounts are expected to be collected. Dividend income is recorded as dividends are declared by the portfolio company or at the point an obligation exists for the portfolio company to make a distribution. In accordance with our valuation policies, we evaluate accrued interest and dividend income periodically for collectability. When a loan or debt security becomes 90 days or more past due, and if we otherwise do not expect the debtor to be able to service all of its debt or other obligations, we will generally place the loan or debt security on non-accrual status and cease recognizing interest income on that loan or debt security until the borrower has demonstrated the ability and intent to pay contractual amounts due. If a loan or debt security's status significantly improves regarding the debtor's ability to service the debt or other obligations, or if a loan or debt security is fully impaired, sold or written off, we remove it from non-accrual status.

       We may periodically provide services, including structuring and advisory services, to our portfolio companies or other third parties. For services that are separately identifiable and evidence exists to substantiate fair value, fee income is recognized as earned, which is generally when the investment or other applicable transaction closes. Fees received in connection with debt financing transactions for services that do not meet these criteria are treated as debt origination fees and are deferred and accreted into income over the life of the financing.

       We hold certain debt and preferred equity instruments in our Investment Portfolio that contain PIK interest and cumulative dividend provisions. The PIK interest, computed at the contractual rate specified in each debt agreement, is periodically added to the principal balance of the debt and is recorded as interest income. Thus, the actual collection of this interest may be deferred until the time of debt principal repayment. Cumulative dividends are recorded as dividend income, and any dividends in arrears are added to the balance of the preferred equity investment. The actual collection of these dividends in arrears may be deferred until such time as the preferred equity is redeemed or sold. To maintain RIC tax treatment (as discussed below), these non-cash sources of income may need to be paid out to stockholders in the form of distributions, even though we may not have collected the PIK interest and cumulative dividends in cash. We stop accruing PIK interest and cumulative dividends and write off any accrued and uncollected interest and dividends in arrears when we determine that such PIK interest and dividends in arrears are no longer collectible. For the years ended December 31, 2016, 2015 and 2014, (i) approximately 3.6%, 2.2% and 3.3% respectively, of our total investment income was attributable to PIK interest income not paid currently in cash and (ii) approximately 1.2%, 1.0%, 1.3%, respectively, of our total investment income was attributable to cumulative dividend income not paid currently in cash.

       We account for our share-based compensation plans using the fair value method, as prescribed by ASC 718, Compensation — Stock Compensation. Accordingly, for restricted stock awards, we measure the grant date fair value based upon the market price of our common stock on the date of the grant and amortize the fair value of the awards as share-based compensation expense over the requisite service period, which is generally the vesting term.

       MSCC has elected to be treated for U.S. federal income tax purposes as a RIC. MSCC's taxable income includes the taxable income generated by MSCC and certain of its subsidiaries, including the Funds, which are treated as disregarded entities for tax purposes. As a RIC, MSCC generally will not pay

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corporate-level U.S. federal income taxes on any net ordinary taxable income or capital gains that MSCC distributes to its stockholders. MSCC must generally distribute at least 90% of its "investment company taxable income" (which is generally its net ordinary taxable income and realized net short-term capital gains in excess of realized net long-term capital losses) and 90% of its tax-exempt income to maintain its RIC status (pass-through tax treatment for amounts distributed). As part of maintaining RIC status, undistributed taxable income (subject to a 4% non-deductible U.S. federal excise tax) pertaining to a given fiscal year may be distributed up to 12 months subsequent to the end of that fiscal year, provided such dividends are declared on or prior to the later of (i) filing of the U.S. federal income tax return for the applicable fiscal year or (ii) the fifteenth day of the ninth month following the close of the year in which such taxable income was generated.

       The Taxable Subsidiaries primarily hold certain portfolio investments for us. The Taxable Subsidiaries permit us to hold equity investments in portfolio companies which are "pass-through" entities for tax purposes and to continue to comply with the "source-income" requirements contained in the RIC tax provisions of the Code. The Taxable Subsidiaries are consolidated with us for U.S. GAAP financial reporting purposes, and the portfolio investments held by the Taxable Subsidiaries are included in our consolidated financial statements as portfolio investments and recorded at fair value. The Taxable Subsidiaries are not consolidated with MSCC for income tax purposes and may generate income tax expense, or benefit, and tax assets and liabilities, as a result of their ownership of certain portfolio investments. The taxable income, or loss, of the Taxable Subsidiaries may differ from their book income, or loss, due to temporary book and tax timing differences and permanent differences. This income tax expense, or benefit, if any, and the related tax assets and liabilities, are reflected in our consolidated financial statements.

       The Taxable Subsidiaries use the liability method in accounting for income taxes. Deferred tax assets and liabilities are recorded for temporary differences between the tax basis of assets and liabilities and their reported amounts in the consolidated financial statements, using statutory tax rates in effect for the year in which the temporary differences are expected to reverse. A valuation allowance is provided, if necessary, against deferred tax assets when it is more likely than not that some portion or all of the deferred tax asset will not be realized.

       Taxable income generally differs from net income for financial reporting purposes due to temporary and permanent differences in the recognition of income and expenses. Taxable income generally excludes net unrealized appreciation or depreciation, as investment gains or losses are not included in taxable income until they are realized.

INVESTMENT PORTFOLIO COMPOSITION

       Our LMM portfolio investments primarily consist of secured debt, equity warrants and direct equity investments in privately held, LMM companies based in the United States. Our LMM portfolio companies generally have annual revenues between $10 million and $150 million, and our LMM investments generally range in size from $5 million to $50 million. The LMM debt investments are typically secured by either a first or second priority lien on the assets of the portfolio company, generally bear interest at fixed rates, and generally have a term of between five and seven years from the original investment date. In most LMM portfolio companies, we receive nominally priced equity warrants and/or make direct equity investments in connection with a debt investment.

       Our Middle Market portfolio investments primarily consist of direct investments in or secondary purchases of interest-bearing debt securities in privately held companies based in the United States that are generally larger in size than the companies included in our LMM portfolio. Our Middle Market portfolio companies generally have annual revenues between $150 million and $1.5 billion, and our Middle Market investments generally range in size from $3 million to $15 million. Our Middle Market portfolio debt investments are generally secured by either a first or second priority lien on the assets of the portfolio company and typically have a term of between three and seven years from the original investment date.

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       Our Private Loan portfolio investments are primarily debt securities in privately held companies which have been originated through strategic relationships with other investment funds on a collaborative basis, and are often referred to in the debt markets as "club deals." Private Loan investments are typically similar in size, structure, terms and conditions to investments we hold in our LMM portfolio and Middle Market portfolio. Our Private Loan portfolio debt investments are generally secured by either a first or second priority lien on the assets of the portfolio company and typically have a term of between three and seven years from the original investment date.

       Our Other Portfolio investments primarily consist of investments which are not consistent with the typical profiles for LMM, Middle Market and Private Loan portfolio investments, including investments which may be managed by third parties. In the Other Portfolio, we may incur indirect fees and expenses in connection with investments managed by third parties, such as investments in other investment companies or private funds.

       Our external asset management business is conducted through the External Investment Manager. The External Investment Manager earns management fees based on the assets of the funds under management and may earn incentive fees, or a carried interest, based on the performance of the funds managed. We have entered into an agreement with the External Investment Manager to share employees in connection with its asset management business generally, and specifically for its relationship with HMS Income. Through this agreement, we share employees with the External Investment Manager, including their related infrastructure, business relationships, management expertise and capital raising capabilities. In the first quarter of 2014, we began allocating costs to the External Investment Manager pursuant to the sharing agreement. Our total expenses for the years ended December 31, 2016, 2015 and 2014 are net of expenses allocated to the External Investment Manager of $5.1 million, $4.3 million and $2.0 million, respectively. The External Investment Manager earns management fees based on the assets of the funds under management and may earn incentive fees, or a carried interest, based on the performance of the funds managed. The total contribution of the External Investment Manager to our net investment income consists of the combination of the expenses allocated to the External Investment Manager and dividend income from the External Investment Manager. For the years ended December 31, 2016, 2015 and 2014, the total contribution to our net investment income was $7.9 million, $6.5 million and $2.5 million, respectively.

       The following tables summarize the composition of our total combined LMM portfolio investments, Middle Market portfolio investments and Private Loan portfolio investments at cost and fair value by type of investment as a percentage of the total combined LMM portfolio investments, Middle Market portfolio investments and Private Loan portfolio investments as of December 31, 2016 and 2015 (this information excludes the Other Portfolio investments and the External Investment Manager).

Cost:
  December 31, 2016   December 31, 2015  

First lien debt

    76.1%     75.8%  

Equity

    14.5%     13.5%  

Second lien debt

    7.7%     8.7%  

Equity warrants

    1.1%     0.9%  

Other

    0.6%     1.1%  

    100.0%     100.0%  

 

Fair Value:
  December 31, 2016   December 31, 2015  

First lien debt

    68.7%     66.1%  

Equity

    22.6%     24.9%  

Second lien debt

    7.2%     7.7%  

Equity warrants

    0.9%     0.6%  

Other

    0.6%     0.7%  

    100.0%     100.0%  

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       Our LMM portfolio investments, Middle Market portfolio investments and Private Loan portfolio investments carry a number of risks including: (1) investing in companies which may have limited operating histories and financial resources; (2) holding investments that generally are not publicly traded and which may be subject to legal and other restrictions on resale; and (3) other risks common to investing in below investment grade debt and equity investments in our Investment Portfolio. Please see "Risk Factors — Risks Related to Our Investments" for a more complete discussion of the risks involved with investing in our Investment Portfolio.

PORTFOLIO ASSET QUALITY

       We utilize an internally developed investment rating system to rate the performance of each LMM portfolio company and to monitor our expected level of returns on each of our LMM investments in relation to our expectations for the portfolio company. The investment rating system takes into consideration various factors, including each investment's expected level of returns, the collectability of our debt investments and the ability to receive a return of the invested capital in our equity investments, comparisons to competitors and other industry participants, the portfolio company's future outlook and other factors that are deemed to be significant to the portfolio company.

       The following table shows the distribution of our LMM portfolio investments on the 1 to 5 investment rating scale at fair value as of December 31, 2016 and 2015:

 
  As of December 31, 2016   As of December 31, 2015  
Investment Rating
  Investments at
Fair Value
  Percentage of
Total Portfolio
  Investments at
Fair Value
  Percentage of
Total Portfolio
 
 
  (dollars in thousands)
 

1

  $ 253,420     28.4%   $ 332,606     38.6%  

2

    258,085     28.9%     143,268     16.6%  

3

    294,807     33.0%     277,160     32.1%  

4

    75,433     8.5%     107,926     12.5%  

5

    10,847     1.2%     1,750     0.2%  

Total

  $ 892,592     100.0%   $ 862,710     100.0%  

       Based upon our investment rating system, the weighted-average rating of our LMM portfolio was approximately 2.3 and 2.2 as of December 31, 2016 and 2015, respectively.

       As of December 31, 2016, our total Investment Portfolio had four investments on non-accrual status, which comprised approximately 0.6% of its fair value and 3.0% of its cost. As of December 31, 2015, our total Investment Portfolio had six investments on non-accrual status, which comprised approximately 0.4% of its fair value and 3.7% of its cost.

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       The operating results of our portfolio companies are impacted by changes in the broader fundamentals of the United States economy. In the event that the United States economy contracts, it is likely that the financial results of small to mid-sized companies, like those in which we invest, could experience deterioration or limited growth from current levels, which could ultimately lead to difficulty in meeting their debt service requirements, to an increase in defaults on our debt investments and to difficulty in maintaining historical dividend payment rates on our equity investments. Consequently, we can provide no assurance that the performance of certain portfolio companies will not be negatively impacted by economic cycles or other conditions, which could also have a negative impact on our future results.

DISCUSSION AND ANALYSIS OF RESULTS OF OPERATIONS

 
  Twelve Months
Ended
December 31,
  Net Change  
 
  2016   2015   Amount   %  
 
  (dollars in thousands)
 

Total investment income

  $ 178,339   $ 164,589   $ 13,750     8%  

Total expenses

    (62,537 )   (57,515 )   (5,022 )   9%  

Net investment income

    115,802     107,074     8,728     8%  

Net realized gain (loss) from investments

    29,389     (21,316 )   50,705        

Net change in net unrealized appreciation (depreciation) from:

                         

Portfolio investments

    (8,305 )   11,048     (19,353 )      

SBIC debentures and marketable securities and idle funds

    786     (1,056 )   1,842        

Total net change in net unrealized appreciation (depreciation)

    (7,519 )   9,992     (17,511 )      

Income tax benefit

    1,227     8,687     (7,460 )      

Net increase in net assets resulting from operations

  $ 138,899   $ 104,437   $ 34,462     33%  

 

 
  Twelve Months
Ended
December 31,
  Net Change  
 
  2016   2015   Amount   %  
 
  (dollars in thousands, except per share amounts)
 

Net investment income

  $ 115,802   $ 107,074   $ 8,728     8%  

Share-based compensation expense

    8,304     6,262     2,042     33%  

Distributable net investment income(a)

  $ 124,106   $ 113,336   $ 10,770     10%  

Net investment income per share — Basic and diluted

  $ 2.23   $ 2.18   $ 0.05     2%  

Distributable net investment income per share — Basic and diluted(a)

  $ 2.39   $ 2.31   $ 0.08     3%  

(a)
Distributable net investment income is net investment income as determined in accordance with U.S. GAAP, excluding the impact of share-based compensation expense which is non-cash in nature. We believe presenting distributable net investment income and related per share amounts is useful and appropriate supplemental disclosure of information for analyzing our financial performance since share-based compensation does not require settlement in cash. However, distributable net investment income is a non-U.S. GAAP measure and should not be considered as a replacement to net investment income and

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       For the year ended December 31, 2016, total investment income was $178.3 million, an 8% increase over the $164.6 million of total investment income for the corresponding period of 2015. This comparable period increase was principally attributable to (i) a $7.4 million increase in interest income primarily related to higher average levels of portfolio debt investments and (ii) a $7.9 million increase in dividend income from Investment Portfolio equity investments, partially offset by (i) a $0.7 million decrease in fee income and (ii) a $0.8 million decrease in investment income from Marketable securities and idle funds investments. The $13.8 million increase in total investment income in the year ended December 31, 2016 includes an increase of $1.7 million related to dividend income activity from portfolio companies that is considered to be less consistent on a recurring basis or non-recurring during the period when compared to the same period in 2015, partially offset by a decrease of $0.4 million primarily related to lower accelerated prepayment and repricing activity for certain Investment Portfolio debt investments when compared to the same period in 2015.

       For the year ended December 31, 2016, total expenses increased to $62.5 million from $57.5 million for the corresponding period of 2015. This comparable period increase in operating expenses was principally attributable to (i) a $2.0 million increase in share-based compensation expense, (ii) a $1.6 million increase in compensation expense related to increases in the number of personnel, base compensation levels and incentive compensation accruals, (iii) a $1.5 million increase in interest expense, primarily due to an increase in interest expense on the Credit Facility due to the higher average interest rate and balance outstanding in the year ended December 31, 2016 and (iv) a $0.7 million increase in general and administrative expenses, with these increases partially offset by a $0.8 million increase in the expenses allocated to the External Investment Manager, in each case when compared to the same period in the prior year. For the year ended December 31, 2016, the ratio of our total operating expenses, excluding interest expense, as a percentage of our quarterly average total assets was 1.5% compared to 1.4% for the year ended December 31, 2015.

       Net investment income for the year ended December 31, 2016 was $115.8 million, or an 8% increase, compared to net investment income of $107.1 million for the corresponding period of 2015. The increase in net investment income was principally attributable to the increase in total investment income, partially offset by higher operating expenses as discussed above.

       For the year ended December 31, 2016, distributable net investment income increased 10% to $124.1 million, or $2.39 per share, compared with $113.3 million, or $2.31 per share, in the corresponding period of 2015. The increase in distributable net investment income was primarily due to the higher level of total investment income, partially offset by higher operating expenses both as discussed above. Distributable net investment income on a per share basis for the year ended December 31, 2016 reflects an increase of approximately $0.03 per share from the comparable period in 2015 attributable to the increase in dividend income that is considered to be less consistent on a recurring basis or non-recurring, partially offset by (i) a decrease of approximately $0.01 per share from the comparable period in 2015 attributable to the net decrease in the comparable levels of accelerated prepayment, repricing and other activity for certain Investment Portfolio debt investments and (ii) a greater number of average shares outstanding compared to the corresponding period in 2015 primarily due to the March 2015 equity offering, shares issued through the

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ATM Program (as defined in "— Liquidity and Capital Resources — Capital Resources" below) and shares issued pursuant to our restricted stock plan and dividend reinvestment plan.

       The net increase in net assets resulting from operations during the year ended December 31, 2016 was $138.9 million, or $2.67 per share, compared with $104.4 million, or $2.13 per share, during the year ended December 31, 2015. This $34.5 million increase from the same period in the prior year period was primarily the result of (i) a $50.7 million increase in the net realized gain (loss) from investments from a net realized loss of $21.3 million during the year ended December 31, 2015 to a net realized gain of $29.4 million for the year ended December 31, 2016 and (ii) an $8.7 million increase in net investment income as discussed above, partially offset by (i) a $17.5 million decrease in net change in unrealized appreciation (depreciation), including accounting reversals relating to the realized gains (losses), from net unrealized appreciation of $10.0 million for the year ended December 31, 2015 to net unrealized depreciation of $7.5 million for the year ended December 31, 2016 and (ii) a $7.5 million decrease in the income tax benefit from the same period in the prior year. The net realized gain of $29.4 million for the year ended December 31, 2016 was primarily the result of (i) the net realized gain of $57.5 million on the exit five LMM investments and (ii) the net realized gain of $4.2 million due to activity in our Other Portfolio, partially offset by (i) the realized loss of $9.6 million on the exit of three Private Loan investments, (ii) the realized loss of $17.0 million related to the restructuring of five Middle Market investments, (iii) the net realized loss of $4.7 million on the exit of two Middle Market investments and (iv) the realized loss of $1.6 million on the exit of a Marketable securities and idle funds investment.

       The following table provides a summary of the total net unrealized depreciation of $7.5 million for the year ended December 31, 2016:

 
  Twelve Months Ended December 31, 2016  
 
  LMM(a)   Middle
Market
  Private
Loan
  Other(b)   Total  
 
  (dollars in millions)
 

Accounting reversals of net unrealized (appreciation) depreciation recognized in prior periods due to net realized (gains)/losses recognized during period

  $ (53.1 ) $ 25.7   $ 9.5   $ (3.5 ) $ (21.4 )

Net change in unrealized appreciation (depreciation) relating to portfolio investments

    8.2     8.4     (4.0 )   0.5     13.1  

Total net change in unrealized appreciation (depreciation) relating to portfolio investments

  $ (44.9 ) $ 34.1   $ 5.5   $ (3.0 ) $ (8.3 )

Net change in unrealized appreciation relating to marketable securities

                            1.7  

Unrealized depreciation relating to SBIC debentures(c)

                            (0.9 )

Total net change in unrealized appreciation (depreciation)

                          $ (7.5 )

(a)
LMM includes unrealized appreciation on 31 LMM portfolio investments and unrealized depreciation on 27 LMM portfolio investments.

(b)
Other includes $3.3 million of unrealized appreciation relating to the External Investment Manager offset by $2.8 million of net unrealized depreciation relating to the Other Portfolio.

(c)
Relates to unrealized depreciation on the SBIC debentures held by MSC II which are accounted for on a fair value basis.

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       The income tax benefit for the year ended December 31, 2016 of $1.2 million principally consisted of a deferred tax benefit of $3.3 million, which is primarily the result of the net activity relating to our portfolio investments held in our Taxable Subsidiaries, including changes in loss carryforwards, changes in net unrealized appreciation/depreciation and other temporary book-tax differences, partially offset by other current tax expense related to (i) a $1.7 million accrual for excise tax on our estimated undistributed taxable income and (ii) other current tax expense of $0.4 million related to accruals for U.S. federal and state income taxes.

 
  Twelve Months
Ended
December 31,
  Net Change  
 
  2015   2014   Amount   %  
 
  (dollars in thousands)
 

Total investment income

  $ 164,589   $ 140,763   $ 23,826     17%  

Total expenses

    (57,515 )   (45,227 )   (12,288 )   27%  

Net investment income

    107,074     95,536     11,538     12%  

Net realized gain (loss) from investments

    (21,316 )   23,206     (44,522 )      

Net change in net unrealized appreciation (depreciation) from:

                         

Portfolio investments

    11,048     (824 )   11,872        

SBIC debentures and marketable securities and idle funds

    (1,056 )   (10,883 )   9,827        

Total net change in net unrealized appreciation (depreciation)

    9,992     (11,707 )   21,699        

Income tax benefit (provision)

    8,687     (6,287 )   14,974        

Net increase in net assets resulting from operations

  $ 104,437   $ 100,748   $ 3,689     4%  

 

 
  Twelve Months
Ended
December 31,
  Net Change  
 
  2015   2014   Amount   %  
 
  (dollars in thousands, except per share amounts)
 

Net investment income

  $ 107,074   $ 95,536   $ 11,538     12%  

Share-based compensation expense

    6,262     4,215     2,047     49%  

Distributable net investment income(a)

  $ 113,336   $ 99,751   $ 13,585     14%  

Net investment income per share — Basic and diluted

  $ 2.18   $ 2.20   $ (0.02 )   (1)%  

Distributable net investment income per share — Basic and diluted(a)

  $ 2.31   $ 2.29   $ 0.02     1%  

(a)
Distributable net investment income is net investment income as determined in accordance with U.S. GAAP, excluding the impact of share-based compensation expense which is non-cash in nature. We believe presenting distributable net investment income and related per share amounts is useful and appropriate supplemental disclosure of information for analyzing our financial performance since share-based compensation does not require settlement in cash. However, distributable net investment income is a non U.S. GAAP measure and should not be considered as a replacement to net investment income and other earnings measures presented in accordance with U.S. GAAP. Instead, distributable net investment income should be reviewed only in connection with such U.S. GAAP measures in analyzing our financial performance. A reconciliation of net investment income in accordance with U.S. GAAP to distributable net investment income is presented in the table above.

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       For the year ended December 31, 2015, total investment income was $164.6 million, a 17% increase over the $140.8 million of total investment income for the corresponding period of 2014. This comparable period increase was principally attributable to (i) a $21.0 million net increase in interest income primarily related to higher average levels of portfolio debt investments, (ii) a $0.7 million net increase in fee income and (iii) a $2.0 million net increase in dividend income from Investment Portfolio equity investments. The $23.8 million increase in total investment income in the year ended December 31, 2015 includes a decrease of $1.7 million primarily related to a decrease in interest income due to lower accelerated prepayment and repricing activity for certain Investment Portfolio debt investments when compared to the same period in 2014 and a decrease of $1.6 million related to dividend income activity from portfolio companies that is considered to be less consistent on a recurring basis during the period when compared to the same period in 2014.

       For the year ended December 31, 2015, total expenses increased to $57.5 million from $45.2 million for the corresponding period of 2014. This comparable period increase in operating expenses was principally attributable to (i) a $8.5 million increase in interest expense, primarily due to a $7.3 million increase as a result of the issuance of our 4.50% Notes in November 2014 and an increase of $0.8 million related to interest on the Credit Facility due to the higher average balance outstanding in 2015, both when compared to the prior year, and (ii) a $2.5 million increase in compensation expense related to increases in the number of personnel, base compensation levels and incentive compensation accruals, (iii) a $2.0 million increase in share-based compensation expense and (iv) a $1.5 million increase in general and other administrative expenses, with these increases partially offset by a $2.3 million increase in the expenses charged to the External Investment Manager (see further discussion in "Overview"), in each case when compared to the prior year. For the years ended December 31, 2015 and 2014, the ratio of our total operating expenses, excluding interest expense, as a percentage of our quarterly average total assets was 1.4%.

       For the year ended December 31, 2015, distributable net investment income increased 14% to $113.3 million, or $2.31 per share, compared with $99.8 million, or $2.29 per share, in the corresponding period of 2014. The increase in distributable net investment income was primarily due to the higher level of total investment income, partially offset by higher operating expenses as discussed above. Distributable net investment income on a per share basis for the year ended December 31, 2015 reflects (i) a decrease of approximately $0.05 per share from the comparable period in 2014 attributable to the net decrease in the comparable levels of accelerated prepayment and repricing activity for certain Investment Portfolio debt investments as discussed above, (ii) a decrease of approximately $0.04 per share attributable to the decrease in the dividend income that is considered to be less consistent on a recurring basis as discussed above and (iii) a greater number of average shares outstanding compared to the corresponding period in 2014 primarily due to the April 2014 and March 2015 equity offerings, the shares issued through the ATM Program (as defined in "— Liquidity and Capital Resources — Capital Resources" below) and shares issued pursuant to our dividend reinvestment plan.

       Net investment income for the year ended December 31, 2015 was $107.1 million, or a 12% increase, compared to net investment income of $95.5 million for the corresponding period of 2014. The increase in net investment income was principally attributable to the increase in total investment income, partially offset by higher operating expenses as discussed above.

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       The net increase in net assets resulting from operations during the year ended December 31, 2015 was $104.4 million, or $2.13 per share, compared with $100.7 million, or $2.31 per share, during the year ended December 31, 2014. This increase from the prior year period was primarily the result of (i) a $11.5 million increase in net investment income as discussed above and (ii) a $21.7 million increase in net change in unrealized appreciation (depreciation), including accounting reversals relating to the realized gains (losses), to net unrealized appreciation of $10.0 million for the year ended December 31, 2015 and (iii) a $15.0 million increase due to the change in the income tax benefit (provision) from the prior year period to an income tax benefit of $8.7 million for the year ended December 31, 2015, with these changes partially offset by a $44.5 million decrease due to the change in the net realized gain (loss) from investments from a net realized gain of $23.2 million during the year ended December 31, 2014 to a net realized loss of $21.3 million for the year ended December 31, 2015. The net realized loss of $21.3 million for the year ended December 31, 2015 was primarily the result of (i) the net realized losses relating to the restructure of two Private Loan investments totaling $13.8 million and two Middle Market investments totaling $9.1 million, (ii) the net realized loss on the exit of a Private Loan investment of $4.7 million and (iii) the exits of several Marketable securities and idle funds investments of $1.4 million, partially offset by the net realized gains on the exits of three LMM investments totaling $5.4 million and from an Other Portfolio investment of $2.5 million.

       The following table provides a summary of the total net unrealized appreciation of $10.0 million for the year ended December 31, 2015:

 
  Twelve Months Ended December 31, 2015  
 
  LMM(a)   MM   PL   Other(b)   Total  
 
  (dollars in millions)
 

Accounting reversals of net unrealized (appreciation) depreciation recognized in prior periods due to net realized gains/losses recognized during period

  $ (5.0 ) $ 6.9   $ 13.1   $ (2.6 ) $ 12.4  

Net change in unrealized appreciation (depreciation) relating to portfolio investments

    48.4     (38.1 )   (22.8 )   11.2     (1.3 )

Total net change in unrealized appreciation (depreciation) relating to portfolio investments

  $ 43.4   $ (31.2 ) $ (9.7 ) $ 8.6   $ 11.1  

Net change in unrealized depreciation relating to marketable securities

                            (0.2 )

Unrealized depreciation relating to SBIC debentures(c)

                            (0.9 )

Total net change in unrealized appreciation (depreciation)

                          $ 10.0  

(a)
LMM includes unrealized appreciation on 36 LMM portfolio investments and unrealized depreciation on 21 LMM portfolio investments.

(b)
Other includes $11.7 million of unrealized appreciation relating to the External Investment Manager, offset by $0.5 million of net unrealized depreciation relating to the Other Portfolio.

(c)
Relates to unrealized depreciation on the SBIC debentures held by MSC II which are accounted for on a fair value basis.

       The income tax benefit for the year ended December 31, 2015 of $8.7 million principally consisted of a deferred tax benefit of $11.7 million, which is primarily the result of the net activity relating to our portfolio investments held in our Taxable Subsidiaries, including changes in net operating loss carryforwards, changes in net unrealized appreciation/depreciation and other temporary book-tax differences, partially offset by other current taxes of $3.0 million, which includes $1.8 million related to accruals for U.S. federal income, state and other taxes and $1.2 million for excise taxes.

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       For the year ended December 31, 2016, we experienced a net increase in cash and cash equivalents in the amount of approximately $4.1 million, which is the result of approximately $42.7 million of cash used by our operating activities and approximately $46.9 million of cash provided by financing activities.

       During the period, we used $42.7 million of cash from our operating activities, which resulted primarily from (i) cash flows we generated from the operating profits earned through our operating activities totaling $107.8 million, which is our $124.1 million of distributable net investment income, excluding the non-cash effects of the accretion of unearned income of $10.2 million, payment-in-kind interest income of $6.5 million, cumulative dividends of $2.2 million and the amortization expense for deferred financing costs of $2.6 million, (ii) cash uses totaling $641.7 million which primarily resulted from (a) the funding of new portfolio company investments and settlement of accruals for portfolio investments existing as of December 31, 2015, which collectively total $641.2 million, and (b) $0.5 million from the purchase of Marketable securities and idle funds investments and (iii) cash proceeds totaling $491.2 million from (a) $486.2 million in cash proceeds from the sales and repayments of debt investments and sales of and return on capital of equity investments and (b) $4.3 million of cash proceeds from the sale of Marketable securities and idle funds investments and (c) $0.7 million related to increases in payables and accruals.

       During the year ended December 31, 2016, $46.9 million in cash was provided by financing activities, which principally consisted of (i) $112.0 million in net cash proceeds from the ATM Program (described below), (ii) $52.0 million in net cash proceeds from the Credit Facility and (iii) $15.0 million in cash proceeds from issuance of SBIC debentures, partially offset by (i) $127.5 million in cash dividends paid to stockholders, (ii) $2.6 million for purchases of vested restricted stock from employees to satisfy their tax withholding requirements upon the vesting of such restricted stock and (iii) $2.0 million for payment of deferred loan costs, SBIC debenture fees and other costs.

       For the year ended December 31, 2015, we experienced a net decrease in cash and cash equivalents in the amount of $40.1 million, which is the net result of $131.4 million of cash used for our operating activities and $91.3 million of cash provided by financing activities.

       During the period, we used $131.4 million of cash for our operating activities, which resulted primarily from (i) cash flows we generated from the operating profits earned through our operating activities totaling $101.8 million, which is our $113.3 million of distributable net investment income, excluding the non-cash effects of the accretion of unearned income of $8.9 million, payment-in-kind interest income of $3.6 million, cumulative dividends of $1.6 million and the amortization expense for deferred financing costs of $2.6 million, (ii) cash uses totaling $848.0 million which primarily resulted from (a) the funding of new portfolio company investments and settlement of accruals for portfolio investments existing as of December 31, 2014, which together total $838.4 million, (b) the funding of new Marketable securities and idle funds investments totaling $5.8 million, (c) $2.3 million related to decreases in payables and accruals and (d) increases in other assets of $1.5 million, and (iii) cash proceeds totaling $614.8 million from (a) $605.3 million in cash proceeds from the repayments of debt investments and sales of equity investments in portfolio companies and (b) $9.5 million of cash proceeds from the sale of Marketable securities and idle funds investments.

       During the year ended December 31, 2015, $91.3 million in cash was provided by financing activities, which principally consisted of (i) $132.0 million in net cash proceeds from a public equity offering in March 2015 and through equity issuances under the ATM Program (described below) in the fourth quarter of 2015 and (ii) $73.0 million in net cash proceeds from the Credit Facility, partially offset by (iii) $110.7 million in cash dividends paid to stockholders and (iv) $3.0 million for payment of deferred loan costs, SBIC debenture fees and other costs.

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       As of December 31, 2016, we had $24.5 million in cash and cash equivalents and $212.0 million of unused capacity under the Credit Facility, which we maintain to support our investment and operating activities. As of December 31, 2016, our net asset value totaled $1,201.5 million, or $22.10 per share.

       The Credit Facility, which provides additional liquidity to support our investment and operational activities, provides for commitments of $555.0 million from a diversified group of fourteen lenders. The Credit Facility was amended during 2016 to extend the maturity one year to September 2021. The Credit Facility also contains an accordion feature which allows us to increase the total commitments under the facility to up to $750.0 million from new and existing lenders on the same terms and conditions as the existing commitments.

       Borrowings under the Credit Facility bear interest, subject to our election, on a per annum basis at a rate equal to the applicable LIBOR rate (0.77% as of December 31, 2016) plus (i) 1.875% (or the applicable base rate (Prime Rate of 3.75% as of December 31, 2016) plus 0.875%) as long as we maintain an investment grade rating and meet certain agreed upon excess collateral and maximum leverage requirements, (ii) 2.0% (or the applicable base rate plus 1.0%) if we maintain an investment grade rating but do not meet certain excess collateral and maximum leverage requirements or (iii) 2.25% (or the applicable base rate plus 1.25%) if we do not maintain an investment grade rating. We pay unused commitment fees of 0.25% per annum on the unused lender commitments under the Credit Facility. The Credit Facility is secured by a first lien on the assets of MSCC and its subsidiaries, excluding the equity ownership or assets of the Funds and the External Investment Manager. The Credit Facility contains certain affirmative and negative covenants, including but not limited to: (i) maintaining a minimum availability of at least 10% of the borrowing base, (ii) maintaining an interest coverage ratio of at least 2.0 to 1.0, (iii) maintaining an asset coverage ratio of at least 1.5 to 1.0 and (iv) maintaining a minimum tangible net worth. The Credit Facility is provided on a revolving basis through its final maturity date in September 2021, and contains two, one-year extension options which could extend the final maturity by up to two years, subject to certain conditions, including lender approval. As of December 31, 2016, we had $343.0 million in borrowings outstanding under the Credit Facility, the interest rate on the Credit Facility was 2.5% and we were in compliance with all financial covenants of the Credit Facility.

       Due to each of the Funds' status as a licensed SBIC, we have the ability to issue, through the Funds, debentures guaranteed by the SBA at favorable interest rates and favorable terms and conditions. In addition, in December 2015, the 2016 omnibus spending bill approved by Congress and signed into law by the President increased the amount of SBA-guaranteed debentures that affiliated SBIC funds can have outstanding from $225.0 million to $350.0 million. This new legislation allowed us to issue additional SBIC debentures, subject to SBA approval, above the $225.0 million that we had outstanding prior to the legislation. In August 2016, we received a license from the SBA to form and operate a third SBIC, which at the time provided us with access up to an additional $125.0 million of long-term, fixed interest rate debt capital through the issuance of SBA-guaranteed debentures. During the year ended December 31, 2016, we have issued $15.0 million of SBIC debentures, leaving $110.0 million of remaining capacity under our SBIC licenses. Debentures guaranteed by the SBA have fixed interest rates that equal prevailing 10-year Treasury Note rates plus a market spread and have a maturity of ten years with interest payable semiannually. The principal amount of the debentures is not required to be paid before maturity, but may be pre-paid at any time with no prepayment penalty. On December 31, 2016, through our three wholly owned SBICs, we had $240.0 million of outstanding SBIC debentures guaranteed by the SBA, which bear a weighted-average annual fixed interest rate of approximately 4.1%, paid semiannually, and mature ten years from issuance. The first maturity related to our SBIC debentures occurs in 2017, and the weighted-average remaining duration is approximately 4.9 years as of December 31, 2016.

       In April 2013, we issued $92.0 million, including the underwriters' full exercise of their over-allotment option, in aggregate principal amount of the 6.125% Notes (the "6.125% Notes"). The 6.125% Notes are unsecured obligations and rank pari passu with our current and future unsecured indebtedness; senior to any

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of our future indebtedness that expressly provides it is subordinated to the 6.125% Notes; effectively subordinated to all of our existing and future secured indebtedness, to the extent of the value of the assets securing such indebtedness, including borrowings under our Credit Facility; and structurally subordinated to all existing and future indebtedness and other obligations of any of our subsidiaries, including without limitation, the indebtedness of the Funds. The 6.125% Notes mature on April 1, 2023, and may be redeemed in whole or in part at any time or from time to time at our option on or after April 1, 2018. We may from time to time repurchase 6.125% Notes in accordance with the 1940 Act and the rules promulgated thereunder. As of December 31, 2016, the outstanding balance of the 6.125% Notes was $90.7 million.

       The indenture governing the 6.125% Notes (the "6.125% Notes Indenture") contains certain covenants, including covenants requiring our compliance with (regardless of whether we are subject to) the asset coverage requirements set forth in Section 18(a)(1)(A) as modified by Section 61(a)(1) of the 1940 Act, as well as covenants requiring us to provide financial information to the holders of the 6.125% Notes and the Trustee if we cease to be subject to the reporting requirements of the Securities Exchange Act of 1934. These covenants are subject to limitations and exceptions that are described in the 6.125% Notes Indenture.

       In November 2014, we issued $175.0 million in aggregate principal amount of the 4.50% Notes (the "4.50% Notes") at an issue price of 99.53%. The 4.50% Notes are unsecured obligations and rank pari passu with our current and future unsecured indebtedness; senior to any of our future indebtedness that expressly provides it is subordinated to the 4.50% Notes; effectively subordinated to all of our existing and future secured indebtedness, to the extent of the value of the assets securing such indebtedness, including borrowings under our Credit Facility; and structurally subordinated to all existing and future indebtedness and other obligations of any of our subsidiaries, including without limitation, the indebtedness of the Funds. The 4.50% Notes mature on December 1, 2019, and may be redeemed in whole or in part at any time at our option subject to certain make-whole provisions. The 4.50% Notes bear interest at a rate of 4.50% per year payable semiannually on June 1 and December 1 of each year, beginning June 1, 2015. We may from time to time repurchase 4.50% Notes in accordance with the 1940 Act and the rules promulgated thereunder. As of December 31, 2016, the outstanding balance of the 4.50% Notes was $175.0 million.

       The indenture governing the 4.50% Notes (the "4.50% Notes Indenture") contains certain covenants, including covenants requiring our compliance with (regardless of whether we are subject to) the asset coverage requirements set forth in Section 18(a)(1)(A) as modified by Section 61(a)(1) of the 1940 Act, as well as covenants requiring us to provide financial information to the holders of the 4.50% Notes and the Trustee if we cease to be subject to the reporting requirements of the Securities Exchange Act of 1934. These covenants are subject to limitations and exceptions that are described in the 4.50% Notes Indenture.

       During April 2014, we completed a follow-on public equity offering of 4,600,000 shares of common stock, including the underwriters' full exercise of their option to purchase 600,000 additional shares, resulting in total net proceeds, including exercise of the underwriters' option to purchase additional shares and after deducting underwriting discounts and estimated offering expenses payable by us, of approximately $139.7 million.

       During March 2015, we completed a follow-on public equity offering of 4,370,000 shares of common stock, including the underwriters' full exercise of their option to purchase 570,000 additional shares, resulting in total net proceeds, including exercise of the underwriters' option to purchase additional shares and after deducting underwriting discounts and estimated offering expenses payable by us, of approximately $127.8 million.

       During November 2015, we commenced a program with certain selling agents through which we can sell shares of our common stock by means of at-the-market offerings from time to time (the "ATM Program"). During the year ended December 31, 2015, we sold 140,568 shares of our common stock at a weighted-average price of $31.98 per share and raised $4.5 million of gross proceeds under the ATM Program. Net proceeds were $4.3 million after commissions to the selling agents on shares sold and offering costs.

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       During the year ended December 31, 2016, we sold 3,324,646 shares of our common stock at a weighted-average price of $34.17 per share and raised $113.6 million of gross proceeds under the ATM Program. Net proceeds were $112.0 million after commissions to the selling agents on shares sold and offering costs. As of December 31, 2016, sales transactions representing 42,413 shares had not settled and are not included in shares issued and outstanding on the face of the consolidated balance sheet, but are included in the weighted-average shares outstanding in the consolidated statement of operations and in the shares used to calculate our net asset value per share. As of December 31, 2016, 1,534,786 shares were available for sale under the ATM Program.

       We anticipate that we will continue to fund our investment activities through existing cash and cash equivalents, the liquidation of Marketable securities and idle funds investments, and a combination of future issuances of debt and equity capital. Our primary uses of funds will be investments in portfolio companies, operating expenses and cash distributions to holders of our common stock.

       We periodically invest excess cash balances into Marketable securities and idle funds investments. The primary investment objective of Marketable securities and idle funds investments is to generate incremental cash returns on excess cash balances prior to utilizing those funds for investment in our LMM, Middle Market and Private Loan portfolio investments. Marketable securities and idle funds investments generally consist of debt investments, independently rated debt investments, certificates of deposit with financial institutions, diversified bond funds and publicly traded debt and equity investments. The composition of Marketable securities and idle funds investments will vary in a given period based upon, among other things, changes in market conditions, the underlying fundamentals in our Marketable securities and idle funds investments, our outlook regarding future LMM, Middle Market and Private Loan portfolio investment needs, and any regulatory requirements applicable to us.

       If our common stock trades below our net asset value per share, we will generally not be able to issue additional common stock at the market price unless our stockholders approve such a sale and our Board of Directors makes certain determinations. We did not seek stockholder authorization to sell shares of our common stock below the then current net asset value per share of our common stock at our 2016 annual meeting of stockholders because our common stock price per share had been trading significantly above the current net asset value per share of our common stock since 2011. We would therefore need future approval from our stockholders to issue shares below the then current net asset value per share.

       In order to satisfy the Code requirements applicable to a RIC, we intend to distribute to our stockholders, after consideration and application of our ability under the Code to carry forward certain excess undistributed taxable income from one tax year into the next tax year, substantially all of our taxable income. In addition, as a BDC, we generally are required to meet a coverage ratio of total assets to total senior securities, which include borrowings and any preferred stock we may issue in the future, of at least 200%. This requirement limits the amount that we may borrow. In January 2008, we received an exemptive order from the SEC to exclude SBA-guaranteed debt securities issued by MSMF and any other wholly owned subsidiaries of ours which operate as SBICs from the asset coverage requirements of the 1940 Act as applicable to us, which, in turn, enables us to fund more investments with debt capital.

       Although we have been able to secure access to additional liquidity, including through the Credit Facility, public debt issuances, leverage available through the SBIC program and equity offerings, there is no assurance that debt or equity capital will be available to us in the future on favorable terms, or at all.

       In May 2014, the FASB issued Accounting Standards Update ("ASU") 2014-09, Revenue from Contracts with Customers (Topic 606). ASU 2014-09 supersedes the revenue recognition requirements under ASC 605, Revenue Recognition, and most industry-specific guidance throughout the Industry Topics of the ASC. The core principle of the guidance is that an entity should recognize revenue to depict the transfer of promised goods or services to customers in an amount that reflects the consideration to which an entity expects to be entitled in exchange for those goods or services. Under the new guidance, an entity is required to perform the

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following five steps: (1) identify the contract(s) with a customer; (2) identify the performance obligations in the contract; (3) determine the transaction price; (4) allocate the transaction price to the performance obligations in the contract, and (5) recognize revenue when (or as) the entity satisfies a performance obligation. The new guidance will significantly enhance comparability of revenue recognition practices across entities, industries, jurisdictions and capital markets. Additionally, the guidance requires improved disclosures as to the nature, amount, timing and uncertainty of revenue that is recognized. In March 2016, the FASB issued ASU 2016-08, Revenue from Contracts with Customers (Topic 606): Principal versus Agent Considerations (Reporting Revenue Gross versus Net), which clarified the implementation guidance on principal versus agent considerations. In April 2016, the FASB issued ASU 2016-10, Revenue from Contracts with Customers (Topic 606): Identifying Performance Obligations and Licensing, which clarified the implementation guidance regarding performance obligations and licensing arrangements. In May 2016, the FASB issued ASU No. 2016-12, Revenue from Contracts with Customers (Topic 606) — Narrow-Scope Improvements and Practical Expedients, which clarified guidance on assessing collectability, presenting sales tax, measuring noncash consideration, and certain transition matters. The new guidance will be effective for the annual reporting period beginning after December 15, 2017, including interim periods within that reporting period. Early adoption would be permitted for annual reporting periods beginning after December 15, 2016. We expect to identify similar performance obligations under ASC 606 as compared with deliverables and separate units of account previously identified. As a result, we expect timing of our revenue recognition to remain the same.

       In May 2015, the FASB issued ASU 2015-07, Fair Value Measurements — Disclosures for Certain Entities that Calculate Net Asset Value per Share. This amendment updates guidance intended to eliminate the diversity in practice surrounding how investments measured at net asset value under the practical expedient with future redemption dates have been categorized in the fair value hierarchy. Under the updated guidance, investments for which fair value is measured at net asset value per share using the practical expedient should no longer be categorized in the fair value hierarchy, while investments for which fair value is measured at net asset value per share but the practical expedient is not applied should continue to be categorized in the fair value hierarchy. The updated guidance requires retrospective adoption for all periods presented and is effective for interim and annual reporting periods beginning after December 15, 2015, with early adoption permitted. The Company adopted this standard during the three months ended March 31, 2016. There was no impact of the adoption of this new accounting standard on our consolidated financial statements as none of our investments are measured through the use of the practical expedient.

       In February 2016, the FASB issued ASU 2016-02, Leases, which requires lessees to recognize on the balance sheet a right of use asset, representing its right to use the underlying asset for the lease term, and a lease liability for all leases with terms greater than 12 months. The guidance also requires qualitative and quantitative disclosures designed to assess the amount, timing, and uncertainty of cash flows arising from leases. The standard requires the use of a modified retrospective transition approach, which includes a number of optional practical expedients that entities may elect to apply. The new guidance is effective for annual periods beginning after December 15, 2018, and interim periods therein. Early application is permitted. While we continue to assess the effect of adoption, we currently believe the most significant change relates to the recognition of a new right-of-use asset and lease liability on our consolidated balance sheet for our office space operating lease. We currently have one operating lease for office space and do not expect a significant change in our leasing activity between now and adoption. See further discussion of our operating lease obligation in "Note N — Commitments and Contingences" in the notes to the consolidated financial statements.

       In March 2016, the FASB issued ASU 2016-09, Compensation — Stock Compensation: Improvements to Employee Share-Based Payment Accounting, which is intended to simplify several aspects of the accounting for share-based payment transactions, including the income tax consequences, classification of awards as either equity or liabilities, and classification on the statement of cash flows. The guidance is effective for annual periods beginning after December 15, 2016, and interim periods therein. Early application is permitted. The Company elected to early adopt this standard during the three months ended March 31, 2016. See further

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discussion of the impact of the adoption of this standard in "Note B.8. — Summary of Significant Accounting Policies — Share-based Compensation" in the notes to consolidated financial statements

       In August 2016, the FASB issued ASU 2016-15, Statement of Cash Flows (Topic 230), which is intended to reduce the existing diversity in practice in how certain cash receipts and cash payments are presented and classified in the statement of cash flows. The guidance is effective for annual periods beginning after December 15, 2017, and interim periods therein. Early application is permitted. The impact of the adoption of this new accounting standard on our consolidated financial statements is not expected to be material.

       From time to time, new accounting pronouncements are issued by the FASB or other standards setting bodies that are adopted by us as of the specified effective date. We believe that the impact of recently issued standards and any that are not yet effective will not have a material impact on our consolidated financial statements upon adoption.

       Inflation has not had a significant effect on our results of operations in any of the reporting periods presented herein. However, our portfolio companies have experienced, and may in the future experience, the impacts of inflation on their operating results, including periodic escalations in their costs for labor, raw materials and third-party services and required energy consumption.

       We may be a party to financial instruments with off-balance sheet risk in the normal course of business to meet the financial needs of our portfolio companies. These instruments include commitments to extend credit and fund equity capital and involve, to varying degrees, elements of liquidity and credit risk in excess of the amount recognized in the balance sheet. At December 31, 2016, we had a total of $120.2 million in outstanding commitments comprised of (i) 28 investments with commitments to fund revolving loans that had not been fully drawn or term loans with additional commitments not yet funded and (ii) eight investments with equity capital commitments that had not been fully called.

       As of December 31, 2016, the future fixed commitments for cash payments in connection with our SBIC debentures, the 4.50% Notes, the 6.125% Notes and rent obligations under our office lease for each of the next five years and thereafter are as follows:

 
  2017   2018   2019   2020   2021   Thereafter   Total  

SBIC debentures

  $ 15,000   $ 10,200   $ 20,000   $ 55,000   $ 40,000   $ 99,800   $ 240,000  

Interest due on SBIC debentures(1)

    9,757     8,538     8,216     7,018     4,472     9,176     47,177  

Notes 6.125%

                        90,655     90,655  

Interest due on 6.125% Notes

    5,553     5,553     5,553     5,553     5,553     6,939     34,704  

4.50% Notes

            175,000                 175,000  

Interest due on 4.50% Notes

    7,875     7,875     7,875                 23,625  

Operating Lease Obligation(2)

    185     683     749     763     777     4,959     8,116  

Total

  $ 38,370   $ 32,849   $ 217,393   $ 68,334   $ 50,802   $ 211,529   $ 619,277  

(1)
The interest due on the $15.0 million of SBIC debentures drawn in 2016 does not have a final rate that has been fixed by the SBA as of December 31, 2016. In March 2017, the final rate for these SBIC debentures will be determined and, thereafter, the rate will be fixed for the ensuing 10 years. For this $15.0 million of the SBIC debentures, the table above assumes a ten year fixed rate from March 2017 to maturity based on the most recent fixed rate charged by the SBA. The rates and related future interest payments for these debentures will be adjusted once the final rate is determined.

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(2)
Operating Lease Obligation means a rent payment obligation under a lease classified as an operating lease and disclosed pursuant to FASB ASC 840, as may be modified or supplemented.

       As of December 31, 2016, we had $343.0 million in borrowings outstanding under our Credit Facility, and the Credit Facility is currently scheduled to mature in September 2021. The Credit Facility contains two, one-year extension options which could extend the maturity to September 2023, subject to lender approval. See further discussion of the Credit Facility terms in "— Liquidity and Capital Resources — Capital Resources."

       As discussed further above, the External Investment Manager is treated as a wholly owned portfolio company of MSCC and is included as part of our Investment Portfolio. At December 31, 2016, we had a receivable of approximately $2.4 million due from the External Investment Manager which included approximately $1.6 million primarily related to operating expenses incurred by us required to support the External Investment Manager's business, along with dividends declared but not paid by the External Investment Manager of approximately $0.7 million.

       In November 2015, our Board of Directors approved and adopted the Main Street Capital Corporation Deferred Compensation Plan (the "2015 Deferred Compensation Plan"). The 2015 Deferred Compensation Plan became effective on January 1, 2016 and replaced the Deferred Compensation Plan for Non-Employee Directors previously adopted by the Board of Directors in June 2013 (the "2013 Deferred Compensation Plan"). Under the 2015 Deferred Compensation Plan, non-employee directors and certain key employees may defer receipt of some or all of their cash compensation and directors' fees, subject to certain limitations. Individuals participating in the 2015 Deferred Compensation Plan receive distributions of their respective balances based on predetermined payout schedules or other events as defined by the plan and are also able to direct investments made on their behalf among investment alternatives permitted from time to time under the plan, including phantom Main Street stock units. As of December 31, 2016, $2.0 million of compensation and directors' fees had been deferred under the 2015 Deferred Compensation Plan (including amounts previously deferred under the 2013 Deferred Compensation Plan). Of this amount, $1.7 million was deferred into phantom Main Street stock units, representing 55,866 shares of our common stock. Including phantom stock units issued through dividend reinvestment, the phantom stock units outstanding as of December 31, 2016 represented 64,839 shares of our common stock. Any amounts deferred under the plan represented by phantom stock units will not be issued or included as outstanding on the consolidated statement of changes in net assets until such shares are actually distributed to the participant in accordance with the plan, but are included in operating expenses and weighted-average shares outstanding in our consolidated statement of operations as earned.

       In January 2017, we led a new portfolio investment to facilitate the majority recapitalization of NuStep, Inc. ("NuStep"), the leading manufacturer of recumbent cross-trainers focused primarily on the physical therapy, physical rehabilitation and active aging markets. We, along with HMS Income, partnered with the NuStep's management team to facilitate the recapitalization of NuStep, with us funding $30.8 million in a combination of first-lien, senior secured term debt and direct equity investment. Headquartered in Ann Arbor, Michigan, NuStep serves customers across a variety of end markets, including physical therapy and rehabilitation clinics, skilled nursing facilities, fitness centers, hospitals, retirement communities and individual consumers. NuStep manufactures all of its products at its manufacturing facilities in Ann Arbor and sells its products throughout the United States and across a wide variety of international markets.

       In February 2017, we led a new portfolio investment to facilitate the management-led buyout of Charps Welding & Fabricating, Inc. ("Charps"), a premier specialty contractor focused on the maintenance, repair, fabrication and construction of oil and gas pipelines. We, along with HMS Income, partnered with the Charps' management team to facilitate the buyout, with us funding $18.8 million in a combination of

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first-lien, senior secured term debt and a direct equity investment. Headquartered in Clearbrook, Minnesota, and founded in 1999, Charps provides various pipeline services to customers focused on energy transmission and distribution. Charps primarily performs work in the Midwest, Ohio Valley and Eastern U.S., and its pipeline services include pipeline integrity services, emergency response, hydrostatic testing, existing line replacement, pipeline fabrication and new construction and installation.

       During February 2017, we declared regular monthly dividends of $0.185 per share for each of April, May and June 2017. These regular monthly dividends equal a total of $0.555 per share for the second quarter of 2017. The second quarter 2017 regular monthly dividends represent a 2.8% increase from the dividends declared for the second quarter of 2016. Including the dividends declared for the second quarter of 2017, we will have paid $19.715 per share in cumulative dividends since our October 2007 initial public offering.

Item 7A.    Quantitative and Qualitative Disclosures about Market Risk

       We are subject to financial market risks, including changes in interest rates. Changes in interest rates may affect both our cost of funding and our interest income from portfolio investments and Marketable securities and idle funds investments. Our risk management systems and procedures are designed to identify and analyze our risk, to set appropriate policies and limits and to continually monitor these risks. Our investment income will be affected by changes in various interest rates, including LIBOR and prime rates, to the extent that any debt investments include floating interest rates. The majority of our debt investments are made with either fixed interest rates or floating rates that are subject to contractual minimum interest rates for the term of the investment. As of December 31, 2016, approximately 65% of our debt investment portfolio (at cost) bore interest at floating rates, 98% of which were subject to contractual minimum interest rates. Our interest expense will be affected by changes in the published LIBOR rate in connection with our Credit Facility; however, the interest rates on our outstanding SBIC debentures, 4.50% Notes and 6.125% Notes, which comprise the majority of our outstanding debt, are fixed for the life of such debt. As of December 31, 2016, we had not entered into any interest rate hedging arrangements. The following table shows the approximate annualized increase or decrease in the components of net investment income due to hypothetical base rate changes in interest rates, assuming no changes in our investments and borrowings as of December 31, 2016.

Basis Point Change
  Increase in
Interest
Income
  Increase in
Interest
Expense
  Increase
(Decrease) in Net
Investment
Income
  Increase
(Decrease) in Net
Investment
Income
per Share
 
 
  (dollars in thousands)
 

25

  $ 2,084   $ (858 ) $ 1,227   $ 0.02  

50

    4,430     (1,715 )   2,715     0.05  

100

    9,299     (3,430 )   5,869     0.11  

150

    14,201     (5,145 )   9,056     0.17  

200

    19,138     (6,860 )   12,278     0.23  

300

    29,010     (10,290 )   18,720     0.34  

400

    38,903     (13,720 )   25,183     0.46  

       The hypothetical results would also be impacted by the changes in the amount of debt outstanding under our Credit Facility (with an increase (decrease) in the debt outstanding under the Credit Facility resulting in an (increase) decrease in the hypothetical interest expense).

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Item 8.    Consolidated Financial Statements and Supplementary Data


Index to Consolidated Financial Statements

Reports of Independent Registered Public Accounting Firm

  81

Consolidated Balance Sheets as of December 31, 2016 and 2015

  83

Consolidated Statements of Operations for the Years Ended December 31, 2016, 2015, and 2014

  84

Consolidated Statements of Changes in Net Assets for the Years Ended December 31, 2016, 2015, and 2014

  85

Consolidated Statements of Cash Flows for the Years Ended December 31, 2016, 2015, and 2014

  86

Consolidated Schedules of Investments as of December 31, 2016 and 2015

  87

Notes to Consolidated Financial Statements

  140

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Report of Independent Registered Public Accounting Firm

Board of Directors and Stockholders' of
Main Street Capital Corporation

       We have audited the accompanying consolidated balance sheets of Main Street Capital Corporation (a Maryland corporation) and subsidiaries (the "Company"), including the consolidated schedule of investments, as of December 31, 2016 and 2015 and the related consolidated statements of operations, changes in net assets and cash flows for each of three years in the period ended December 31, 2016 and the financial highlights (see Note I) for each of the five years in the period ended December 31, 2016. These financial statements and financial highlights are the responsibility of the Company's management. Our responsibility is to express an opinion on these financial statements and financial highlights based on our audits.

       We conducted our audits in accordance with the standards of the Public Company Accounting Oversight Board (United States). Those standards require that we plan and perform the audit to obtain reasonable assurance about whether the financial statements and financial highlights are free of material misstatement. An audit includes examining, on a test basis, evidence supporting the amounts and disclosures in the financial statements. An audit also includes assessing the accounting principles used and significant estimates made by management, as well as evaluating the overall financial statement presentation. Our procedures included verification by confirmation of securities as of December 31, 2016 and 2015, by correspondence with the portfolio companies and custodians, or by other appropriate auditing procedures where replies where not received. We believe that our audits provide a reasonable basis for our opinion.

       In our opinion, the consolidated financial statements and financial highlights referred to above present fairly, in all material respects, the financial position of Main Street Capital Corporation and subsidiaries as of December 31, 2016 and 2015 and the results of their operations and their cash flows for each of the three years in the period ended December 31, 2016, and the financial highlights for each of the five years in the period ended December 31, 2016, in conformity with accounting principles generally accepted in the United States of America.

       We also have audited, in accordance with the standards of the Public Company Accounting Oversight Board (United States), the Company's internal control over financial reporting as of December 31, 2016, based on criteria established in the 2013 Internal Control — Integrated Framework issued by the Committee of Sponsoring Organizations of the Treadway Commission (COSO), and our report dated February 24, 2017, expressed an unqualified opinion on the effectiveness of the Company's internal control over financial reporting.

/s/ GRANT THORNTON LLP

Dallas, Texas
February 24, 2017

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Report of Independent Registered Public Accounting Firm

Board of Directors and Stockholders' of
Main Street Capital Corporation

       We have audited internal control over financial reporting of Main Street Capital Corporation (a Maryland corporation) and subsidiaries (the "Company") as of December 31, 2016, based on criteria established in the 2013 Internal Control — Integrated Framework issued by the Committee of Sponsoring Organizations of the Treadway Commission (COSO). The Company's management is responsible for maintaining effective internal control over financial reporting and for its assessment of the effectiveness of internal control over financial reporting, included in the accompanying Management's Report on Internal Control over Financial Reporting. Our responsibility is to express an opinion on the Company's internal control over financial reporting based on our audit.

       We conducted our audit in accordance with the standards of the Public Company Accounting Oversight Board (United States). Those standards require that we plan and perform the audit to obtain reasonable assurance about whether effective internal control over financial reporting was maintained in all material respects. Our audit included obtaining an understanding of internal control over financial reporting, assessing the risk that a material weakness exists, testing and evaluating the design and operating effectiveness of internal control based on the assessed risk, and performing such other procedures as we considered necessary in the circumstances. We believe that our audit provides a reasonable basis for our opinion.

       A company's internal control over financial reporting is a process designed to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles. A company's internal control over financial reporting includes those policies and procedures that (1) pertain to the maintenance of records that, in reasonable detail, accurately and fairly reflect the transactions and dispositions of the assets of the company; (2) provide reasonable assurance that transactions are recorded as necessary to permit preparation of financial statements in accordance with generally accepted accounting principles, and that receipts and expenditures of the company are being made only in accordance with authorizations of management and directors of the company; and (3) provide reasonable assurance regarding prevention or timely detection of unauthorized acquisition, use, or disposition of the company's assets that could have a material effect on the financial statements.

       Because of its inherent limitations, internal control over financial reporting may not prevent or detect misstatements. Also, projections of any evaluation of effectiveness to future periods are subject to the risk that controls may become inadequate because of changes in conditions, or that the degree of compliance with the policies or procedures may deteriorate.

       In our opinion, the Company maintained, in all material respects, effective internal control over financial reporting as of December 31, 2016, based on criteria established in the 2013 Internal Control — Integrated Framework issued by COSO.

       We also have audited, in accordance with the standards of the Public Company Accounting Oversight Board (United States), the consolidated balance sheets of the Company, including the consolidated schedule of investments, as of December 31, 2016 and 2015, and the related consolidated statements of operations, changes in net assets and cash flows, for each of the three years in the period ended December 31, 2016 and the financial highlights (see Note I) for each of the five years in the period ended December 31, 2016, and our report dated February 24, 2017, expressed an unqualified opinion on those financial statements.

/s/ GRANT THORNTON LLP

Dallas, Texas
February 24, 2017

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MAIN STREET CAPITAL CORPORATION

Consolidated Balance Sheets

(dollars in thousands, except per share amounts)

 
  December 31,
2016
  December 31,
2015
 

ASSETS

 

Portfolio investments at fair value:

   
 
   
 
 

Control investments (cost: $439,674 and $387,727 as of December 31, 2016 and 2015, respectively)

  $ 594,282   $ 555,011  

Affiliate investments (cost: $394,699 and $333,728 as of December 31, 2016 and 2015, respectively)

    375,948     350,519  

Non-Control/Non-Affiliate investments (cost: $1,037,510 and $945,187 as of December 31, 2016 and 2015, respectively)

    1,026,676     894,466  

Total portfolio investments (cost: $1,871,883 and $1,666,642 as of December 31, 2016 and 2015, respectively)

    1,996,906     1,799,996  

Marketable securities and idle funds investments (cost: $0 and $5,407 as of December 31, 2016 and 2015, respectively)

        3,693  

Total investments (cost: $1,871,883 and $1,672,049 as of December 31, 2016 and 2015, respectively)

    1,996,906     1,803,689  

Cash and cash equivalents

   
24,480
   
20,331
 

Interest receivable and other assets

    35,133     27,737  

Receivable for securities sold

    1,990     9,901  

Deferred financing costs (net of accumulated amortization of $11,547 and $8,965 as of December 31, 2016 and 2015, respectively)

    12,645     13,267  

Deferred tax asset, net

    9,125     4,003  

Total assets

  $ 2,080,279   $ 1,878,928  

LIABILITIES

 

Credit facility

 
$

343,000
 
$

291,000
 

SBIC debentures (par: $240,000 ($15,000 due within one year) and $225,000 as of December 31, 2016 and 2015, respectively. Par of $75,200 is recorded at a fair value of $74,803 and $73,860 as of December 31, 2016 and 2015, respectively)

    239,603     223,660  

4.50% Notes

    175,000     175,000  

6.125% Notes

    90,655     90,738  

Accounts payable and other liabilities

    14,205     12,292  

Payable for securities purchased

    2,184     2,311  

Interest payable

    4,103     3,959  

Dividend payable

    10,048     9,074  

Total liabilities

    878,798     808,034  

Commitments and contingencies (Note N)

   
 
   
 
 

NET ASSETS

   
 
   
 
 

Common stock, $0.01 par value per share (150,000,000 shares authorized; 54,312,444 and 50,413,744 shares issued and outstanding as of December 31, 2016 and 2015, respectively)

   
543
   
504
 

Additional paid-in capital

    1,143,883     1,011,467  

Accumulated net investment income, net of cumulative dividends of $521,297 and $417,347 as of December 31, 2016 and 2015, respectively

    19,033     7,181  

Accumulated net realized gain from investments (accumulated net realized gain from investments of $48,394 before cumulative dividends of $107,281 as of December 31, 2016 and accumulated net realized gain from investments of $19,005 before cumulative dividends of $68,658 as of December 31, 2015)

    (58,887 )   (49,653 )

Net unrealized appreciation, net of income taxes

    96,909     101,395  

Total net assets

    1,201,481     1,070,894  

Total liabilities and net assets

  $ 2,080,279   $ 1,878,928  

NET ASSET VALUE PER SHARE

  $ 22.10   $ 21.24  

   

The accompanying notes are an integral part of these consolidated financial statements

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MAIN STREET CAPITAL CORPORATION

Consolidated Statements of Operations

(dollars in thousands, except shares and per share amounts)

 
  Twelve Months Ended December 31,  
 
  2016   2015   2014  

INVESTMENT INCOME:

                   

Interest, fee and dividend income:

                   

Control investments

  $ 52,221   $ 49,832   $ 40,122  

Affiliate investments

    37,702     27,200     26,151  

Non-Control/Non-Affiliate investments

    88,242     86,571     73,666  

Interest, fee and dividend income

    178,165     163,603     139,939  

Interest, fee and dividend income from marketable securities and idle funds investments

    174     986     824  

Total investment income

    178,339     164,589     140,763  

EXPENSES:

                   

Interest

    (33,630 )   (32,115 )   (23,589 )

Compensation

    (16,408 )   (14,852 )   (12,337 )

General and administrative

    (9,284 )   (8,621 )   (7,134 )

Share-based compensation

    (8,304 )   (6,262 )   (4,215 )

Expenses allocated to the External Investment Manager

    5,089     4,335     2,048  

Total expenses

    (62,537 )   (57,515 )   (45,227 )

NET INVESTMENT INCOME

    115,802     107,074     95,536  

NET REALIZED GAIN (LOSS):

   
 
   
 
   
 
 

Control investments

    32,220     (582 )   (10 )

Affiliate investments

    25,167     5,827     12,019  

Non-Control/Non-Affiliate investments

    (26,317 )   (25,147 )   11,257  

Marketable securities and idle funds investments

    (1,681 )   (1,414 )   (60 )

Total net realized gain (loss)

    29,389     (21,316 )   23,206  

NET CHANGE IN UNREALIZED APPRECIATION (DEPRECIATION):

                   

Portfolio investments

    (8,305 )   11,048     (824 )

Marketable securities and idle funds investments

    1,729     (177 )   48  

SBIC debentures

    (943 )   (879 )   (10,931 )

Total net change in unrealized appreciation (depreciation)

    (7,519 )   9,992     (11,707 )

INCOME TAXES:

                   

Federal and state income, excise and other taxes

    (2,089 )   (2,964 )   (3,013 )

Deferred taxes

    3,316     11,651     (3,274 )

Income tax benefit (provision)

    1,227     8,687     (6,287 )

NET INCREASE IN NET ASSETS RESULTING FROM OPERATIONS

  $ 138,899   $ 104,437   $ 100,748  

NET INVESTMENT INCOME PER SHARE — BASIC AND DILUTED

  $ 2.23   $ 2.18   $ 2.20  

NET INCREASE IN NET ASSETS RESULTING FROM OPERATIONS PER SHARE — BASIC AND DILUTED

  $ 2.67   $ 2.13   $ 2.31  

DIVIDENDS PAID PER SHARE:

                   

Regular monthly dividends

  $ 2.175   $ 2.100   $ 1.995  

Supplemental dividends

    0.550     0.550   $ 0.550  

Total dividends

  $ 2.725   $ 2.650   $ 2.545  

WEIGHTED AVERAGE SHARES OUTSTANDING — BASIC AND DILUTED

    52,025,002     49,071,492     43,522,397  

   

The accompanying notes are an integral part of these consolidated financial statements

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MAIN STREET CAPITAL CORPORATION

Consolidated Statements of Changes in Net Assets

(dollars in thousands, except shares)

 
  Common Stock    
   
  Accumulated
Net Realized
Gain From
Investments,
Net of Dividends
  Net Unrealized
Appreciation from
Investments,
Net of Income
Taxes
   
 
 
   
  Accumulated
Net Investment
Income, Net
of Dividends
   
 
 
  Number of
Shares
  Par
Value
  Additional
Paid-In
Capital
  Total Net
Asset Value
 

Balances at December 31, 2013

    39,852,604   $ 398   $ 694,981   $ 22,778   $ (26,334 ) $ 100,710   $ 792,533  

Public offering of common stock, net of offering costs

    4,600,000     46     139,651                 139,697  

Share-based compensation

            4,215                 4,215  

Purchase of vested stock for employee payroll tax withholding

    (46,955 )       (1,495 )               (1,495 )

Dividend reinvestment

    468,417     5     14,951                 14,956  

Amortization of directors' deferred compensation

            297                 297  

Issuance of restricted stock, net of forfeited shares

    205,084     2     (2 )                

Tax benefit related to vesting of restricted shares

            1,008                 1,008  

Dividends to stockholders

                (94,649 )   (17,328 )       (111,977 )

Net increase (loss) resulting from operations

                95,536     23,206     (17,994 )   100,748  

Balances at December 31, 2014

    45,079,150   $ 451   $ 853,606   $ 23,665   $ (20,456 ) $ 82,716   $ 939,982  

Balances at December 31, 2014

    45,079,150   $ 451   $ 853,606   $ 23,665   $ (20,456 ) $ 82,716   $ 939,982  

Public offering of common stock, net of offering costs

    4,510,568     46     132,003                 132,049  

Share-based compensation

            6,262                 6,262  

Purchase of vested stock for employee payroll tax withholding

    (54,840 )   (1 )   (1,739 )               (1,740 )

Dividend reinvestment

    636,079     6     19,348                 19,354  

Amortization of directors' deferred compensation

            423                 423  

Issuance of restricted stock, net of forfeited shares

    242,787     2     (2 )                

Other

            1,566                 1,566  

Dividends to stockholders

                (123,558 )   (7,881 )       (131,439 )

Net increase (loss) resulting from operations

                107,074     (21,316 )   18,679     104,437  

Balances at December 31, 2015

    50,413,744   $ 504   $ 1,011,467   $ 7,181   $ (49,653 ) $ 101,395   $ 1,070,894  

Balances at December 31, 2015

    50,413,744   $ 504   $ 1,011,467   $ 7,181   $ (49,653 ) $ 101,395   $ 1,070,894  

Public offering of common stock, net of offering costs

    3,324,646     33     112,006                 112,039  

Share-based compensation

            8,304                 8,304  

Purchase of vested stock for employee payroll tax withholding

    (80,750 )   (1 )   (2,592 )               (2,593 )

Dividend reinvestment

    434,631     4     14,073                 14,077  

Amortization of directors' deferred compensation

            628                 628  

Issuance of restricted stock, net of forfeited shares

    262,586     3     (3 )                

Dividends to stockholders

                (103,950 )   (38,623 )       (142,573 )

Cumulative-effect to retained earnings for excess tax benefit

                        1,806     1,806  

Net increase (loss) resulting from operations

                115,802     29,389     (6,292 )   138,899  

Balances at December 31, 2016

    54,354,857   $ 543   $ 1,143,883   $ 19,033   $ (58,887 ) $ 96,909   $ 1,201,481  

   

The accompanying notes are an integral part of these consolidated financial statements

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MAIN STREET CAPITAL CORPORATION

Consolidated Statements of Cash Flows

(dollars in thousands)

 
  Twelve Months Ended December 31,  
 
  2016   2015   2014  

CASH FLOWS FROM OPERATING ACTIVITIES

                   

Net increase in net assets resulting from operations

  $ 138,899   $ 104,437   $ 100,748  

Adjustments to reconcile net increase in net assets resulting from operations to net cash provided by (used in) operating activities:

                   

Investments in portfolio companies

    (641,197 )   (838,441 )   (831,192 )

Proceeds from sales and repayments of debt investments in portfolio companies

    409,542     570,454     512,084  

Proceeds from sales and return of capital of equity investments in portfolio companies

    76,731     34,780     42,585  

Investments in marketable securities and idle funds investments                

    (523 )   (5,767 )   (22,691 )

Proceeds from sales and repayments of marketable securities and idle funds investments

    4,316     9,529     26,958  

Net change in net unrealized (appreciation) depreciation

    7,519     (9,992 )   11,707  

Net realized (gain) loss

    (29,389 )   21,316     (23,206 )

Accretion of unearned income

    (10,211 )   (8,940 )   (10,491 )

Payment-in-kind interest

    (6,497 )   (3,624 )   (4,685 )

Cumulative dividends

    (2,200 )   (1,607 )   (1,815 )

Share-based compensation expense

    8,304     6,262     4,215  

Amortization of deferred financing costs

    2,582     2,553     1,740  

Deferred tax (benefit) provision

    (3,316 )   (11,651 )   3,274  

Changes in other assets and liabilities:

                   

Interest receivable and other assets

    (2,564 )   (3,220 )   (6,686 )

Interest payable

    144     (889 )   2,292  

Accounts payable and other liabilities

    2,541     1,639     1,817  

Deferred fees and other

    2,589     1,769     2,428  

Net cash used in operating activities

    (42,730 )   (131,392 )   (190,918 )

CASH FLOWS FROM FINANCING ACTIVITIES

   
 
   
 
   
 
 

Proceeds from public offering of common stock, net of offering costs

    112,039     132,049     139,697  

Proceeds from public offering of 4.50% Notes

            175,000  

Dividends paid

    (127,522 )   (110,673 )   (95,935 )

Proceeds from issuance of SBIC debentures

    15,000         24,800  

Proceeds from credit facility

    390,000     534,000     491,000  

Repayments on credit facility

    (338,000 )   (461,000 )   (510,000 )

Payment of deferred loan costs and SBIC debenture fees

    (1,962 )   (1,260 )   (6,359 )

Purchases of vested stock for employee payroll tax withholding

    (2,593 )   (1,740 )   (1,495 )

Other

    (83 )   (85 )   (59 )

Net cash provided by financing activities

    46,879     91,291     216,649  

Net increase (decrease) in cash and cash equivalents

    4,149     (40,101 )   25,731  

CASH AND CASH EQUIVALENTS AT BEGINNING OF PERIOD

    20,331     60,432     34,701  

CASH AND CASH EQUIVALENTS AT END OF PERIOD

  $ 24,480   $ 20,331   $ 60,432  

Supplemental cash flow disclosures:

                   

Interest paid

  $ 30,756   $ 30,450   $ 19,559  

Taxes paid

  $ 1,495   $ 2,687   $ 4,152  

Non-cash financing activities:

                   

Shares issued pursuant to the DRIP

  $ 14,077   $ 19,354   $ 14,956  

   

The accompanying notes are an integral part of these consolidated financial statements

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MAIN STREET CAPITAL CORPORATION

Consolidated Schedule of Investments

December 31, 2016
(dollars in thousands)

Portfolio Company(1)
  Business Description
  Type of Investment(2)(3)
  Principal(4)
  Cost(4)
  Fair Value
 
   

Control Investments(5)

 

 

 

 

                   

                           

Access Media Holdings, LLC(10)

 

Private Cable Operator

                       

     

5% Current / 5% PIK Secured Debt (Maturity — July 22, 2020)

  $ 22,664   $ 22,664   $ 19,700  

     

Preferred Member Units (6,581,250 units; 12% cumulative)

          6,475     240  

     

Member Units (45 units)

          1      

                  29,140     19,940  

                           

Ameritech College Operations, LLC

 

For-Profit Nursing and Healthcare College

                       

     

10% Secured Debt (Maturity — November 30, 2019)

    514     514     514  

     

13% Secured Debt (Maturity — November 30, 2019)

    489     489     489  

     

13% Secured Debt (Maturity — January 31, 2020)

    3,025     3,025     3,025  

     

Preferred Member Units (294 units)

          2,291     2,291  

                  6,319     6,319  

                           

ASC Interests, LLC

 

Recreational and Educational Shooting Facility

                       

     

11% Secured Debt (Maturity — July 31, 2018)

    2,100     2,084     2,100  

     

Member Units (1,500 units)(8)

          1,500     2,680  

                  3,584     4,780  

                           

Bond-Coat, Inc.

 

Casing and Tubing Coating Services

                       

     

12% Secured Debt (Maturity — December 28, 2017)

    11,596     11,556     11,596  

     

Common Stock (57,508 shares)

          6,350     6,660  

                  17,906     18,256  

                           

Café Brazil, LLC

 

Casual Restaurant Group

                       

     

Member Units (1,233 units)(8)

          1,742     6,040  

                           

CBT Nuggets, LLC

 

Produces and Sells IT Training Certification Videos

                       

     

Member Units (416 units)(8)

          1,300     55,480  

                           

Clad-Rex Steel, LLC

 

Specialty Manufacturer of Vinyl-Clad Metal

                       

     

LIBOR Plus 9.50% (Floor 1.00%), Current Coupon 10.50%, Secured Debt (Maturity — December 20, 2018)(9)

    400     396     396  

     

LIBOR Plus 9.50% (Floor 1.00%), Current Coupon 10.50%, Secured Debt (Maturity — December 20, 2021)(9)

    14,080     13,941     13,941  

     

Member Units (717 units)

          7,280     7,280  

     

10% Secured Debt (Clad-Rex Steel RE Investor, LLC) (Maturity — December 20, 2036)

    1,202     1,190     1,190  

     

Member Units (Clad-Rex Steel RE Investor, LLC) (800 units)

          210     210  

                  23,017     23,017  

                           

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MAIN STREET CAPITAL CORPORATION

Consolidated Schedule of Investments — (Continued)

December 31, 2016
(dollars in thousands)

Portfolio Company(1)
  Business Description
  Type of Investment(2)(3)
  Principal(4)
  Cost(4)
  Fair Value
 
   

CMS Minerals Investments

 

Oil & Gas Exploration & Production

                       

     

Preferred Member Units (CMS Minerals LLC) (458 units)(8)

          2,104     3,682  

     

Member Units (CMS Minerals II, LLC) (100 units)(8)

          3,829     3,381  

                  5,933     7,063  

                           

Datacom, LLC

 

Technology and Telecommunications Provider

                       

     

8% Secured Debt (Maturity — May 30, 2017)

    900     900     900  

     

5.25% Current / 5.25% PIK Secured Debt (Maturity — May 30, 2019)

    11,713     11,651     11,049  

     

Class A Preferred Member Units (15% cumulative)

          1,181     1,368  

     

Class B Preferred Member Units (6,453 units)

          6,030     1,529  

                  19,762     14,846  

                           

Gamber-Johnson Holdings, LLC

 

Manufacturer of Ruggedized Computer Mounting Systems

                       

     

LIBOR Plus 11.00% (Floor 1.00%), Current Coupon 12.00%, Secured Debt (Maturity — June 24, 2021)(9)

    24,080     23,846     23,846  

     

Member Units (8,619 units)

          14,844     18,920  

                  38,690     42,766  

                           

Garreco, LLC

 

Manufacturer and Supplier of Dental Products

                       

     

14% Secured Debt (Maturity — January 12, 2018)

    5,250     5,219     5,219  

     

Member Units (1,200 units)

          1,200     1,150  

                  6,419     6,369  

                           

GRT Rubber Technologies LLC

 

Manufacturer of Engineered Rubber Products

                       

     

LIBOR Plus 9.00% (Floor 1.00%), Current Coupon 10.00%, Secured Debt (Maturity — December 19, 2019)(9)

    13,274     13,188     13,274  

     

Member Units (5,879 units)(8)

          13,065     20,310  

                  26,253     33,584  

                           

Gulf Manufacturing, LLC

 

Manufacturer of Specialty Fabricated Industrial Piping Products

                       

     

9% PIK Secured Debt (Ashland Capital IX, LLC) (Maturity — June 30, 2017)

    777     777     777  

     

Member Units (438 units)(8)

          2,980     8,770  

                  3,757     9,547  

                           

Gulf Publishing Holdings, LLC

 

Energy Industry Focused Media and Publishing

                       

     

12.5% Secured Debt (Maturity — April 29, 2021)

    10,000     9,911     9,911  

     

Member Units (3,124 units)

          3,124     3,124  

                  13,035     13,035  

                           

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MAIN STREET CAPITAL CORPORATION

Consolidated Schedule of Investments — (Continued)

December 31, 2016
(dollars in thousands)

Portfolio Company(1)
  Business Description
  Type of Investment(2)(3)
  Principal(4)
  Cost(4)
  Fair Value
 
   

Harrison Hydra-Gen, Ltd.

 

Manufacturer of Hydraulic Generators

                       

     

Common Stock (107,456 shares)(8)

          718     3,120  

                           

Hawthorne Customs and Dispatch Services, LLC

 

Facilitator of Import Logistics, Brokerage, and Warehousing

                       

     

Member Units (500 units)

          589     280  

     

Member Units (Wallisville Real Estate, LLC) (588,210 units)(8)

          1,215     2,040  

                  1,804     2,320  

                           

HW Temps LLC

 

Temporary Staffing Solutions

                       

     

LIBOR Plus 13.00% (Floor 1.00%), Current Coupon 14.00%, Secured Debt (Maturity July 2, 2020)(9)

    10,576     10,500     10,500  

     

Preferred Member Units (3,200 units)(8)

          3,942     3,940  

                  14,442     14,440  

                           

Hydratec, Inc.

 

Designer and Installer of Micro-Irrigation Systems

                       

     

Common Stock (7,095 shares)(8)

          7,095     15,640  

                           

IDX Broker, LLC

 

Provider of Marketing and CRM Tools for the Real Estate Industry

                       

     

12.5% Secured Debt (Maturity — November 15, 2018)

    10,950     10,904     10,950  

     

Member Units (5,400 units)(8)

          5,606     7,040  

                  16,510     17,990  

                           

Indianapolis Aviation Partners, LLC

 

Fixed Base Operator

                       

     

15% Secured Debt (Maturity — January 15, 2017)

    3,100     3,100     3,100  

     

Warrants (1,046 equivalent units)

          1,129     2,649  

                  4,229     5,749  

                           

Jensen Jewelers of Idaho, LLC

 

Retail Jewelry Store

                       

     

Prime Plus 6.75% (Floor 2.00%), Current Coupon 10.25%, Secured Debt (Maturity — November 14, 2019)(9)

    4,055     3,996     4,055  

     

Member Units (627 units)(8)

          811     4,460  

                  4,807     8,515  

                           

Lamb Ventures, LLC

 

Aftermarket Automotive Services Chain

                       

     

11% Secured Debt (Maturity — May 31, 2018)

    7,657     7,657     7,657  

     

Preferred Equity (non-voting)

          400     400  

     

Member Units (742 units)(8)

          5,273     5,990  

     

9.5% Secured Debt (Lamb's Real Estate Investment I, LLC) (Maturity — December 31, 2041)

    1,170     1,170     1,170  

     

Member Units (Lamb's Real Estate Investment I, LLC) (1,000 units)(8)

          625     1,340  

                  15,125     16,557  

                           

89


Table of Contents


MAIN STREET CAPITAL CORPORATION

Consolidated Schedule of Investments — (Continued)

December 31, 2016
(dollars in thousands)

Portfolio Company(1)
  Business Description
  Type of Investment(2)(3)
  Principal(4)
  Cost(4)
  Fair Value
 
   

Lighting Unlimited, LLC

 

Commercial and Residential Lighting Products and Design Services

                       

     

8% Secured Debt (Maturity — August 22, 2017)

    1,514     1,514     1,514  

     

Preferred Equity (non-voting)

          434     410  

     

Warrants (71 equivalent units)

          54      

     

Member Units (700 units)

          100      

                  2,102     1,924  

                           

Marine Shelters Holdings, LLC

 

Fabricator of Marine and Industrial Shelters

                       

     

12% PIK Secured Debt (Maturity — December 28, 2017)(14)

    9,967     9,914     9,387  

     

Preferred Member Units (3,810 units)

          5,352      

                  15,266     9,387  

                           

MH Corbin Holding LLC

 

Manufacturer and Distributor of Traffic Safety Products

                       

     

10% Secured Debt (Maturity — August 31, 2020)

    13,300     13,197     13,197  

     

Preferred Member Units (4,000 shares)

          6,000     6,000  

                  19,197     19,197  

                           

Mid-Columbia Lumber Products, LLC

 

Manufacturer of Finger-Jointed Lumber Products

                       

     

10% Secured Debt (Maturity — December 18, 2017)

    1,750     1,750     1,750  

     

12% Secured Debt (Maturity — December 18, 2017)

    3,900     3,900     3,900  

     

Member Units (3,554 units)

          1,810     2,480  

     

9.5% Secured Debt (Mid - Columbia Real Estate, LLC) (Maturity — May 13, 2025)

    836     836     836  

     

Member Units (Mid - Columbia Real Estate, LLC) (250 units)(8)

          250     600  

                  8,546     9,566  

                           

MSC Adviser I, LLC(16)

 

Third Party Investment Advisory Services

                       

     

Member Units (Fully diluted 100.0%)(8)

              30,617  

                           

Mystic Logistics Holdings, LLC

 

Logistics and Distribution Services Provider for Large Volume Mailers

                       

     

12% Secured Debt (Maturity — August 15, 2019)

    9,176     9,053     9,176  

     

Common Stock (5,873 shares)

          2,720     5,780  

                  11,773     14,956  

                           

NAPCO Precast, LLC

 

Precast Concrete Manufacturing

                       

     

Prime Plus 2.00% (Floor 7.00%), Current Coupon 9.00%, Secured Debt (Maturity — February 1, 2019)(9)

    2,713     2,693     2,713  

     

18% Secured Debt (Maturity — February 1, 2019)

    3,952     3,922     3,952  

     

Member Units (2,955 units)(8)

          2,975     10,920  

                  9,590     17,585  

                           

90


Table of Contents


MAIN STREET CAPITAL CORPORATION

Consolidated Schedule of Investments — (Continued)

December 31, 2016
(dollars in thousands)

Portfolio Company(1)
  Business Description
  Type of Investment(2)(3)
  Principal(4)
  Cost(4)
  Fair Value
 
   

NRI Clinical Research, LLC

 

Clinical Research Service Provider

                       

     

LIBOR Plus 6.50% (Floor 1.50%), Current Coupon 8.00%, Secured Debt (Maturity — September 8, 2017)(9)

    200     200     200  

     

14% Secured Debt (Maturity — September 8, 2017)

    4,261     4,228     4,261  

     

Warrants (251,723 equivalent units)

          252     680  

     

Member Units (1,454,167 units)

          765     2,462  

                  5,445     7,603  

                           

NRP Jones, LLC

 

Manufacturer of Hoses, Fittings and Assemblies

                       

     

6% Current / 6% PIK Secured Debt (Maturity — December 22, 2016)(17)

    13,915     13,915     13,915  

     

Warrants (14,331 equivalent units)

          817     130  

     

Member Units (50,877 units)

          2,900     410  

                  17,632     14,455  

                           

OMi Holdings, Inc.

 

Manufacturer of Overhead Cranes

                       

     

Common Stock (1,500 shares)(8)

          1,080     13,080  

                           

Pegasus Research Group, LLC

 

Provider of Telemarketing and Data Services

                       

     

Member Units (460 units)(8)

          1,290     8,620  

                           

PPL RVs, Inc.

 

Recreational Vehicle Dealer

                       

     

LIBOR Plus 7.00% (Floor 0.50%), Current Coupon 7.93%, Secured Debt (Maturity — November 15, 2021)(9)

    18,000     17,826     17,826  

     

Common Stock (1,962 shares)(8)

          2,150     11,780  

                  19,976     29,606  

                           

Principle Environmental, LLC

 

Noise Abatement Service Provider

                       

     

12% Secured Debt (Maturity — April 30, 2017)

    4,060     4,060     4,060  

     

12% Current / 2% PIK Secured Debt (Maturity — April 30, 2017)

    3,378     3,378     3,378  

     

Preferred Member Units (19,631 units)

          4,663     5,370  

     

Warrants (1,036 equivalent units)

          1,200     270  

                  13,301     13,078  

                           

Quality Lease Service, LLC

 

Provider of Rigsite Accommodation Unit Rentals and Related Services

                       

     

8% PIK Secured Debt (Maturity — June 8, 2020)

    7,068     7,068     7,068  

     

Member Units (1,000 units)

          1,118     3,188  

                  8,186     10,256  

                           

River Aggregates, LLC

 

Processor of Construction Aggregates

                       

     

Zero Coupon Secured Debt (Maturity — June 30, 2018)

    750     627     627  

     

Member Units (1,150 units)(8)

          1,150     4,600  

     

Member Units (RA Properties, LLC) (1,500 units)

          369     2,510  

                  2,146     7,737  

                           

91


Table of Contents


MAIN STREET CAPITAL CORPORATION

Consolidated Schedule of Investments — (Continued)

December 31, 2016
(dollars in thousands)

Portfolio Company(1)
  Business Description
  Type of Investment(2)(3)
  Principal(4)
  Cost(4)
  Fair Value
 
   

SoftTouch Medical Holdings LLC

 

Provider of In-Home Pediatric Durable Medical Equipment

                       

     

LIBOR Plus 9.00% (Floor 1.00%), Current Coupon 10.00%, Secured Debt (Maturity — October 31, 2019)(9)

    7,140     7,096     7,140  

     

Member Units (4,450 units)(8)

          4,930     9,170  

                  12,026     16,310  

                           

The MPI Group, LLC

 

Manufacturer of Custom Hollow Metal Doors, Frames and Accessories

                       

     

9% Secured Debt (Maturity — October 2, 2018)

    2,924     2,922     2,922  

     

Series A Preferred Units (2,500 units; 10% Cumulative)

          2,500      

     

Warrants (1,424 equivalent units)

          1,096      

     

Member Units (MPI Real Estate Holdings, LLC) (100 units)(8)

          2,300     2,300  

                  8,818     5,222  

                           

Uvalco Supply, LLC

 

Farm and Ranch Supply Store

                       

     

9% Secured Debt (Maturity — January 1, 2019)

    872     872     872  

     

Member Units (2,011 units)(8)

          3,843     4,640  

                  4,715     5,512  

                           

Vision Interests, Inc.

 

Manufacturer / Installer of Commercial Signage

                       

     

13% Secured Debt (Maturity — December 23, 2018)

    2,814     2,814     2,814  

     

Series A Preferred Stock (3,000,000 shares)

          3,000     3,000  

     

Common Stock (1,126,242 shares)

          3,706      

                  9,520     5,814  

                           

Ziegler's NYPD, LLC

 

Casual Restaurant Group

                       

     

6.5% Secured Debt (Maturity — October 1, 2019)

    1,000     994     994  

     

12% Secured Debt (Maturity — October 1, 2019)

    300     300     300  

     

14% Secured Debt (Maturity — October 1, 2019)

    2,750     2,750     2,750  

     

Warrants (587 equivalent units)

          600     240  

     

Preferred Member Units (10,072 units)

          2,834     4,100  

                  7,478     8,384  

Subtotal Control Investments (29.8% of total investments at fair value)

  $ 439,674   $ 594,282  

92


Table of Contents


MAIN STREET CAPITAL CORPORATION

Consolidated Schedule of Investments — (Continued)

December 31, 2016
(dollars in thousands)

Portfolio Company(1)
  Business Description
  Type of Investment(2)(3)
  Principal(4)
  Cost(4)
  Fair Value
 
   

Affiliate Investments(6)

 

 

 

 

                   

                           

AFG Capital Group, LLC

 

Provider of Rent-to-Own Financing Solutions and Services

 

 

                   

     

Warrants (42 equivalent units)

        $ 259   $ 670  

     

Member Units (186 units)(8)

          1,200     2,750  

                  1,459     3,420  

                           

Barfly Ventures, LLC(10)

 

Casual Restaurant Group

 

 

                   

     

12% Secured Debt (Maturity — August 31, 2020)

    5,958     5,860     5,827  

     

Options (2 equivalent units)

          397     490  

     

Warrant (1 equivalent unit)

          473     280  

                  6,730     6,597  

                           

BBB Tank Services, LLC

 

Maintenance, Repair and Construction Services to the Above-Ground Storage Tank Market

                       

     

LIBOR Plus 9.50% (Floor 1.00%), Current Coupon 10.50%, Secured Debt (Maturity — April 8, 2021)(9)

    800     797     797  

     

15% Current Secured Debt (Maturity — April 8, 2021)

    4,027     3,991     3,991  

     

Member Units (800,000 units)

          800     800  

                  5,588     5,588  

                           

Boss Industries, LLC

 

Manufacturer and Distributor of Air, Power and Other Industrial Equipment

                       

     

Preferred Member Units (2,242 units)(8)

          2,426     2,800  

                           

Bridge Capital Solutions Corporation

 

Financial Services and Cash Flow Solutions Provider

                       

     

13% Secured Debt (Maturity — July 25, 2021)

    7,500     5,610     5,610  

     

Warrants (63 equivalent shares)

          2,132     3,370  

     

13% Secured Debt (Mercury Service Group, LLC) (Maturity — July 25, 2021)

    1,000     991     1,000  

     

Preferred Member Units (Mercury Service Group, LLC) (17,742 units)(8)

          1,000     1,000  

                  9,733     10,980  

                           

Buca C, LLC

 

Casual Restaurant Group

                       

     

LIBOR Plus 7.25% (Floor 1.00%), Current Coupon 8.25%, Secured Debt (Maturity — June 30, 2020)(9)

    22,671     22,504     22,671  

     

Preferred Member Units (6 units; 6% cumulative)(8)

          3,937     4,660  

                  26,441     27,331  

                           

CAI Software LLC

 

Provider of Specialized Enterprise Resource Planning Software

                       

     

12% Secured Debt (Maturity — October 10, 2019)

    3,683     3,660     3,683  

     

Member Units (65,356 units)(8)

          654     2,480  

                  4,314     6,163  

                           

93


Table of Contents


MAIN STREET CAPITAL CORPORATION

Consolidated Schedule of Investments — (Continued)

December 31, 2016
(dollars in thousands)

Portfolio Company(1)
  Business Description
  Type of Investment(2)(3)
  Principal(4)
  Cost(4)
  Fair Value
 
   

CapFusion, LLC(13)

 

Non-Bank Lender to Small Businesses

                       

     

13% Secured Debt (Maturity — March 25, 2021)

    14,400     13,202     13,202  

     

Warrants (1,600 equivalent units)

          1,200     1,200  

                  14,402     14,402  

                           

Chandler Signs Holdings, LLC(10)

 

Sign Manufacturer

                       

     

12% Secured Debt (Maturity — July 4, 2021)

    4,500     4,461     4,500  

     

Class A Units (1,500,000 units)(8)

          1,500     3,240  

                  5,961     7,740  

                           

Condit Exhibits, LLC

 

Tradeshow Exhibits / Custom Displays Provider

                       

     

Member Units (3,936 units)(8)

          100     1,840  

                           

Congruent Credit Opportunities Funds(12)(13)

 

Investment Partnership

                       

     

LP Interests (Congruent Credit Opportunities Fund II, LP) (Fully diluted 19.8%)(8)

          5,730     1,518  

     

LP Interests (Congruent Credit Opportunities Fund III, LP) (Fully diluted 17.4%)(8)

          15,754     16,181  

                  21,484     17,699  

                           

Daseke, Inc.

 

Specialty Transportation Provider

                       

     

12% Current / 2.5% PIK Secured Debt (Maturity — July 31, 2018)

    21,799     21,632     21,799  

     

Common Stock (19,467 shares)

          5,213     24,063  

                  26,845     45,862  

                           

Dos Rios Partners(12)(13)

 

Investment Partnership

                       

     

LP Interests (Dos Rios Partners, LP) (Fully diluted 20.2%)

          5,996     4,925  

     

LP Interests (Dos Rios Partners — A, LP) (Fully diluted 6.4%)

          1,904     1,444  

                  7,900     6,369  

                           

Dos Rios Stone Products LLC(10)

 

Limestone and Sandstone Dimension Cut Stone Mining Quarries

                       

     

Class A Units (2,000,000 units)(8)

          2,000     2,070  

                           

East Teak Fine Hardwoods, Inc.

 

Distributor of Hardwood Products

                       

     

Common Stock (6,250 shares)(8)

          480     860  

                           

East West Copolymer & Rubber, LLC

 

Manufacturer of Synthetic Rubbers

                       

     

12% Current / 2% PIK Secured Debt (Maturity — October 17, 2019)

    9,699     9,591     8,630  

     

Warrants (2,510,790 equivalent units)

          50      

                  9,641     8,630  

                           

EIG Fund Investments(12)(13)

 

Investment Partnership

                       

     

LP Interests (EIG Global Private Debt fund-A, L.P.) (Fully diluted 11.1%)(8)

          2,804     2,804  

                           

94


Table of Contents


MAIN STREET CAPITAL CORPORATION

Consolidated Schedule of Investments — (Continued)

December 31, 2016
(dollars in thousands)

Portfolio Company(1)
  Business Description
  Type of Investment(2)(3)
  Principal(4)
  Cost(4)
  Fair Value
 
   

EIG Traverse Co-Investment, L.P.(12)(13)

 

Investment Partnership

                       

     

LP Interests (Fully diluted 22.2%)(8)

          9,805     9,905  

                           

Freeport Financial Funds(12)(13)

 

Investment Partnership

                       

     

LP Interests (Freeport Financial SBIC Fund LP) (Fully diluted 9.3%)(8)

          5,974     5,620  

     

LP Interests (Freeport First Lien Loan Fund III LP) (Fully diluted 6.0%)(8)

          4,763     4,763  

                  10,737     10,383  

                           

Gault Financial, LLC (RMB Capital, LLC)

 

Purchases and Manages Collection of Healthcare and other Business Receivables

                       

     

10% Current Secured Debt (Maturity — January 1, 2019)

    13,046     13,046     11,079  

     

Warrants (29,025 equivalent units)

          400      

                  13,446     11,079  

                           

Glowpoint, Inc.

 

Provider of Cloud Managed Video Collaboration Services

                       

     

12% Secured Debt (Maturity — October 18, 2018)

    9,000     8,949     3,997  

     

Common Stock (7,711,517 shares)

          3,958     2,080  

                  12,907     6,077  

                           

Guerdon Modular Holdings, Inc.

 

Multi-Family and Commercial Modular Construction Company

                       

     

9% Current / 4% PIK Secured Debt (Maturity — August 13, 2019)

    10,708     10,594     10,594  

     

Preferred Stock (404,998 shares)

          1,140     1,140  

     

Common Stock (212,033 shares)

          2,983     80  

                  14,717     11,814  

                           

Hawk Ridge Systems, LLC(13)

 

Value-Added Reseller of Engineering Design and Manufacturing Solutions

                       

     

10% Secured Debt (Maturity — December 2, 2021)

    10,000     9,901     9,901  

     

Preferred Member Units (226 units)(8)

          2,850     2,850  

     

Preferred Member Units (HRS Services, ULC) (226 units)

          150     150  

                  12,901     12,901  

                           

Houston Plating and Coatings, LLC

 

Provider of Plating and Industrial Coating Services

                       

     

Member Units (265,756 units)

          1,429     4,000  

                           

I-45 SLF LLC(12)(13)

 

Investment Partnership

                       

     

Member units (Fully diluted 20.0%; 24.4% profits interest)(8)

          14,200     14,586  

                           

95


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MAIN STREET CAPITAL CORPORATION

Consolidated Schedule of Investments — (Continued)

December 31, 2016
(dollars in thousands)

Portfolio Company(1)
  Business Description
  Type of Investment(2)(3)
  Principal(4)
  Cost(4)
  Fair Value
 
   

Indianhead Pipeline Services, LLC

 

Provider of Pipeline Support Services

                       

     

12% Secured Debt (Maturity — February 6, 2017)

    5,100     5,079     5,079  

     

Preferred Member Units (33,819 units; 8% cumulative)(8)

          2,339     2,677  

     

Warrants (31,928 equivalent units)

          459      

     

Member Units (14,732 units)

          1      

                  7,878     7,756  

                           

KBK Industries, LLC

 

Manufacturer of Specialty Oilfield and Industrial Products

                       

     

10% Secured Debt (Maturity — September 28, 2017)

    1,250     1,250     1,250  

     

12.5% Secured Debt (Maturity — September 28, 2017)

    5,900     5,889     5,889  

     

Member Units (250 units)

          341     2,780  

                  7,480     9,919  

                           

L.F. Manufacturing Holdings, LLC(10)

 

Manufacturer of Fiberglass Products

                       

     

Member Units (2,179,001 units)

          2,019     1,380  

                           

OnAsset Intelligence, Inc.

 

Provider of Transportation Monitoring / Tracking Products and Services

                       

     

12% PIK Secured Debt (Maturity — December 31, 2015)(17)

    4,519     4,519     4,519  

     

Preferred Stock (912 shares; 7% cumulative)

          1,981      

     

Warrants (5,333 equivalent shares)

          1,919      

                  8,419     4,519  

                           

OPI International Ltd.(13)

 

Provider of Man Camp and Industrial Storage Services

                       

     

10% Unsecured Debt (Maturity — April 8, 2018)

    473     473     473  

     

Common Stock (20,766,317 shares)

          1,371     1,600  

                  1,844     2,073  

                           

PCI Holding Company, Inc.

 

Manufacturer of Industrial Gas Generating Systems

                       

     

12% Secured Debt (Maturity — March 31, 2019)

    13,000     12,898     13,000  

     

Preferred Stock (1,500,000 shares; 20% cumulative)(8)

          3,379     5,370  

                  16,277     18,370  

                           

Rocaceia, LLC (Quality Lease and Rental Holdings, LLC)

 

Provider of Rigsite Accommodation Unit Rentals and Related Services

                       

     

12% Secured Debt (Maturity — January 8, 2018)(14)(18)

    30,785     30,281     250  

     

Preferred Member Units (250 units)

          2,500      

                  32,781     250  

                           

96


Table of Contents


MAIN STREET CAPITAL CORPORATION

Consolidated Schedule of Investments — (Continued)

December 31, 2016
(dollars in thousands)

Portfolio Company(1)
  Business Description
  Type of Investment(2)(3)
  Principal(4)
  Cost(4)
  Fair Value
 
   

Tin Roof Acquisition Company

 

Casual Restaurant Group

                       

     

12% Secured Debt (Maturity — November 13, 2018)

    13,511     13,385     13,385  

     

Class C Preferred Stock (Fully diluted 10.0%; 10% cumulative)(8)

          2,738     2,738  

                  16,123     16,123  

                           

UniTek Global Services, Inc.(11)

 

Provider of Outsourced Infrastructure Services

                       

     

LIBOR Plus 7.50% (Floor 1.00%), Current Coupon 8.50%, Secured Debt (Maturity — January 13, 2019)(9)

    5,021     5,010     5,021  

     

LIBOR Plus 8.50% (Floor 1.00%), Current Coupon 9.50%, Secured Debt (Maturity — January 13, 2019)(9)

    824     824     824  

     

15% PIK Unsecured Debt (Maturity — July 13, 2019)

    745     745     745  

     

Preferred Stock (4,935,377 shares; 13.5% cumulative)(8)

          5,814     6,410  

     

Common Stock (705,054 shares)

              3,010  

                  12,393     16,010  

                           

Universal Wellhead Services Holdings, LLC(10)

 

Provider of Wellhead Equipment, Designs, and Personnel to the Oil & Gas Industry

                       

     

Preferred Member Units (UWS Investments, LLC) (716,949 units; 14% cumulative)

          717     720  

     

Member Units (UWS Investments, LLC) (4,000,000 units)

          4,000     610  

                  4,717     1,330  

                           

Valley Healthcare Group, LLC

 

Provider of Durable Medical Equipment

                       

     

LIBOR Plus 12.50% (Floor 0.50%), Current Coupon 13.12%, Secured Debt (Maturity — December 29, 2020)(9)

    12,956     12,844     12,844  

     

Preferred Member Units (Valley Healthcare Holding, LLC) (1,600 units)

          1,600     1,600  

                  14,444     14,444  

                           

Volusion, LLC

 

Provider of Online Software-as-a-Service eCommerce Solutions

                       

     

11.5% Secured Debt (Maturity — January 26, 2020)

    17,500     15,298     15,298  

     

Preferred Member Units (4,876,670 units)

          14,000     14,000  

     

Warrants (1,831,355 equivalent units)

          2,576     2,576  

                  31,874     31,874  

Subtotal Affiliate Investments (18.8% of total investments at fair value)

  $ 394,699   $ 375,948  

97


Table of Contents


MAIN STREET CAPITAL CORPORATION

Consolidated Schedule of Investments — (Continued)

December 31, 2016
(dollars in thousands)

Portfolio Company(1)
  Business Description
  Type of Investment(2)(3)
  Principal(4)
  Cost(4)
  Fair Value
 
   

Non-Control/Non-Affiliate Investments(7)

                   

                           

Adams Publishing Group, LLC(10)

 

Local Newspaper Operator

                       

     

LIBOR Plus 7.00% (Floor 1.00%), Current Coupon 8.00%, Secured Debt (Maturity — November 3, 2020)(9)

  $ 7,662   $ 7,544   $ 7,662  

                           

Ahead, LLC(10)

 

IT Infrastructure Value Added Reseller

                       

     

LIBOR Plus 6.50%, Current Coupon 7.50%, Secured Debt (Maturity — November 2, 2020)

    14,250     13,906     14,303  

                           

Allflex Holdings III Inc.(11)

 

Manufacturer of Livestock Identification Products

                       

     

LIBOR Plus 7.00% (Floor 1.00%), Current Coupon 8.00%, Secured Debt (Maturity — July 19, 2021)(9)

    14,795     14,706     14,809  

                           

American Scaffold Holdings, Inc.(10)

 

Marine Scaffolding Service Provider

                       

     

LIBOR Plus 6.50% (Floor 1.00%), Current Coupon 7.50%, Secured Debt (Maturity — March 31, 2022)(9)

    7,359     7,258     7,323  

                           

American Seafoods Group, LLC(11)

 

Catcher and Processor of Alaskan Pollock

                       

     

LIBOR Plus 5.00% (Floor 1.00%), Current Coupon 6.00%, Secured Debt (Maturity — August 19, 2021)(9)

    9,634     9,624     9,634  

                           

American Teleconferencing Services, Ltd.(11)

 

Provider of Audio Conferencing and Video Collaboration Solutions

                       

     

LIBOR Plus 6.50% (Floor 1.00%), Current Coupon 7.50%, Secured Debt (Maturity — December 8, 2021)(9)

    11,163     10,345     10,933  

     

LIBOR Plus 9.50% (Floor 1.00%), Current Coupon 10.50%, Secured Debt (Maturity — June 6, 2022)(9)

    3,714     3,569     3,569  

                  13,914     14,502  

                           

Anchor Hocking, LLC(11)

 

Household Products Manufacturer

                       

     

LIBOR Plus 9.00% (Floor 1.00%), Current Coupon 10.00%, Secured Debt (Maturity — June 4, 2018)(9)

    2,277     2,277     2,231  

     

Member Units (440,620 units)

          4,928     3,305  

                  7,205     5,536  

                           

AP Gaming I, LLC(10)

 

Developer, Manufacturer, and Operator of Gaming Machines

                       

     

LIBOR Plus 8.25% (Floor 1.00%), Current Coupon 9.25%, Secured Debt (Maturity — December 20, 2020)(9)

    7,209     7,099     7,194  

                           

98


Table of Contents


MAIN STREET CAPITAL CORPORATION

Consolidated Schedule of Investments — (Continued)

December 31, 2016
(dollars in thousands)

Portfolio Company(1)
  Business Description
  Type of Investment(2)(3)
  Principal(4)
  Cost(4)
  Fair Value
 
   

Apex Linen Service, Inc.

 

Industrial Launderers

                       

     

LIBOR Plus 6.00% (Floor 1.00%), Current Coupon 7.00%, Secured Debt (Maturity — October 30, 2022)(9)

    2,400     2,400     2,400  

     

13% Secured Debt (Maturity — October 30, 2022)

    14,416     14,337     14,337  

                  16,737     16,737  

                           

Applied Products, Inc.(10)

 

Adhesives Distributor

                       

     

LIBOR Plus 6.50% (Floor 1.00%), Current Coupon 7.50%, Secured Debt (Maturity — September 30, 2019)(9)

    3,527     3,499     3,518  

                           

Arcus Hunting LLC.(10)

 

Manufacturer of Bowhunting and Archery Products and Accessories

                       

     

LIBOR Plus 7.00% (Floor 1.00%), Current Coupon 8.00%, Secured Debt (Maturity — November 13, 2019)(9)

    13,947     13,796     13,947  

                           

Artel, LLC(11)

 

Provider of Secure Satellite Network and IT Solutions

                       

     

LIBOR Plus 7.00% (Floor 1.25%), Current Coupon 8.25%, Secured Debt (Maturity — November 27, 2017)(9)

    7,050     6,920     6,592  

                           

ATI Investment Sub, Inc.(11)

 

Manufacturer of Solar Tracking Systems

                       

     

LIBOR Plus 7.25% (Floor 1.00%), Current Coupon 8.25%, Secured Debt (Maturity — June 22, 2021)(9)

    9,500     9,322     9,476  

                           

ATS Workholding, Inc.(10)

 

Manufacturer of Machine Cutting Tools and Accessories

                       

     

LIBOR Plus 9.50% (Floor 1.00%), Current Coupon 10.50%, Secured Debt (Maturity — March 10, 2019)(9)

    6,173     6,146     5,924  

                           

ATX Networks Corp.(11)(13)

 

Provider of Radio Frequency Management Equipment

                       

     

LIBOR Plus 6.00% (Floor 1.00%), Current Coupon 7.00%, Secured Debt (Maturity — June 11, 2021)(9)

    11,790     11,604     11,584  

                           

Berry Aviation, Inc.(10)

 

Airline Charter Service Operator

                       

     

12.00% Current / 1.75% PIK Secured Debt (Maturity — January 30, 2020)

    5,627     5,588     5,627  

     

Common Stock (553 shares)

          400     820  

                  5,988     6,447  

                           

Bluestem Brands, Inc.(11)

 

Multi-Channel Retailer of General Merchandise

                       

     

LIBOR Plus 7.50% (Floor 1.00%), Current Coupon 8.50%, Secured Debt (Maturity — November 6, 2020)(9)

    12,880     12,635     11,227  

                           

99


Table of Contents


MAIN STREET CAPITAL CORPORATION

Consolidated Schedule of Investments — (Continued)

December 31, 2016
(dollars in thousands)

Portfolio Company(1)
  Business Description
  Type of Investment(2)(3)
  Principal(4)
  Cost(4)
  Fair Value
 
   

Brainworks Software, LLC(10)

 

Advertising Sales and Newspaper Circulation Software

                       

     

Prime Plus 9.25% (Floor 3.25%), Current Coupon 13.00%, Secured Debt (Maturity — July 22, 2019)(9)

    6,733     6,684     6,733  

                           

Brightwood Capital Fund Investments(12)(13)

 

Investment Partnership

                       

     

LP Interests (Brightwood Capital Fund III, LP) (Fully diluted 1.6%)(8)

          12,000     11,094  

     

LP Interests (Brightwood Capital Fund IV, LP) (Fully diluted 0.9%)

          500     500  

                  12,500     11,594  

                           

Brundage-Bone Concrete Pumping, Inc.(11)

 

Construction Services Provider

                       

     

10.375% Secured Debt (Maturity — September 1, 2021)

    3,000     2,985     3,240  

                           

California Pizza Kitchen, Inc.(11)

 

Casual Restaurant Group

                       

     

LIBOR Plus 6.00% (Floor 1.00%), Current Coupon 7.00%, Secured Debt (Maturity — August 23, 2022)(9)

    4,988     4,940     4,976  

                           

Cenveo Corporation(11)

 

Provider of Commercial Printing, Envelopes, Labels, and Printed Office Products

                       

     

6% Secured Debt (Maturity — August 1, 2019)

    13,130     11,097     11,719  

                           

CDHA Management, LLC(10)

 

Dental Services

                       

     

LIBOR Plus 7.25% (Floor 1.00%), Current Coupon 8.25%, Secured Debt (Maturity — December 5, 2021)(9)

    4,491     4,415     4,415  

                           

Charlotte Russe, Inc(11)

 

Fast-Fashion Retailer to Young Women

                       

     

LIBOR Plus 5.50% (Floor 1.25%), Current Coupon 6.75%, Secured Debt (Maturity — May 22, 2019)(9)

    14,346     14,141     8,724  

                           

Clarius BIGS, LLC(10)

 

Prints & Advertising Film Financing

                       

     

15% PIK Secured Debt (Maturity — January 5, 2015)(14)(17)

    2,928     2,928     88  

                           

Compact Power Equipment, Inc.

 

Equipment / Tool Rental

                       

     

12% Secured Debt (Maturity — October 1, 2017)

    4,100     4,095     4,100  

     

Series A Preferred Stock (4,298,435 shares)

          1,079     4,180  

                  5,174     8,280  

                           

Compuware Corporation(11)

 

Provider of Software and Supporting Services

                       

     

LIBOR Plus 5.25% (Floor 1.00%), Current Coupon 6.25%, Secured Debt (Maturity — December 15, 2019)(9)

    8,345     8,187     8,398  

                           

100


Table of Contents


MAIN STREET CAPITAL CORPORATION

Consolidated Schedule of Investments — (Continued)

December 31, 2016
(dollars in thousands)

Portfolio Company(1)
  Business Description
  Type of Investment(2)(3)
  Principal(4)
  Cost(4)
  Fair Value
 
   

Construction Supply Investments, LLC(10)

 

Distribution Platform of Specialty Construction Materials to Professional Concrete and Masonry Contractors

                       

     

LIBOR Plus 9.50% (Floor 1.00%), Current Coupon 10.50%, Secured Debt (Maturity — June 30, 2023)(9)

    8,500     8,416     8,416  

     

Member Units (20,000 units)

          2,000     2,000  

                  10,416     10,416  

                           

ContextMedia Health, LLC(11)

 

Provider of Healthcare Media Content

                       

     

LIBOR Plus 6.50% (Floor 1.00%), Current Coupon 7.50%, Secured Debt (Maturity — December 23, 2021)(9)

    8,000     7,201     7,320  

                           

Covenant Surgical Partners, Inc.(11)

 

Ambulatory Surgical Centers

                       

     

8.75% Secured Debt (Maturity — August 1, 2019)

    800     800     772  

                           

CRGT Inc.(11)

 

Provider of Custom Software Development

                       

     

LIBOR Plus 6.50% (Floor 1.00%), Current Coupon 7.50%, Secured Debt (Maturity — December 19, 2020)(9)

    6,366     6,286     6,382  

                           

CST Industries Inc.(11)

 

Storage Tank Manufacturer

                       

     

LIBOR Plus 6.25% (Floor 1.50%), Current Coupon 7.75%, Secured Debt (Maturity — May 22, 2017)(9)

    9,102     9,084     9,102  

                           

Darr Equipment LP(10)

 

Heavy Equipment Dealer

                       

     

12% Current / 2% PIK Secured Debt (Maturity — April 15, 2020)

    21,130     20,697     20,748  

     

Warrants (915,734 equivalent units)

          474     10  

                  21,171     20,758  

                           

Digital River, Inc.(11)

 

Provider of Outsourced e-Commerce Solutions and Services

                       

     

LIBOR Plus 6.50% (Floor 1.00%), Current Coupon 7.50%, Secured Debt (Maturity — February 12, 2021)(9)

    15,184     15,086     15,317  

                           

Digital Room LLC(11)

 

Pure-Play e-Commerce Print Business

                       

     

LIBOR Plus 6.00% (Floor 1.00%), Current Coupon 7.00%, Secured Debt (Maturity — November 21, 2022)(9)

    7,625     7,475     7,549  

                           

Drilling Info Holdings, Inc.

 

Information Services for the Oil and Gas Industry

                       

     

Common Stock (3,788,865 shares)

          1,335     10,410  

                           

ECP-PF Holdings Group, Inc.(10)

 

Fitness Club Operator

                       

     

LIBOR Plus 9.00% (Floor 1.00%), Current Coupon 10.00%, Secured Debt (Maturity — November 26, 2019)(9)

    5,625     5,589     5,625  

                           

101


Table of Contents


MAIN STREET CAPITAL CORPORATION

Consolidated Schedule of Investments — (Continued)

December 31, 2016
(dollars in thousands)

Portfolio Company(1)
  Business Description
  Type of Investment(2)(3)
  Principal(4)
  Cost(4)
  Fair Value
 
   

EnCap Energy Fund Investments(12)(13)

 

Investment Partnership

                       

     

LP Interests (EnCap Energy Capital Fund VIII, L.P.) (Fully diluted 0.1%)(8)

          3,877     1,955  

     

LP Interests (EnCap Energy Capital Fund VIII Co- Investors, L.P.) (Fully diluted 0.4%)

          2,200     1,225  

     

LP Interests (EnCap Energy Capital Fund IX, L.P.) (Fully diluted 0.1%)(8)

          3,957     3,680  

     

LP Interests (Encap Energy Capital Fund X, L.P.) (Fully diluted 0.1%)

          3,039     3,039  

     

LP Interests (EnCap Flatrock Midstream Fund II, L.P.) (Fully diluted 0.8%)(8)

          9,116     10,452  

     

LP Interests (EnCap Flatrock Midstream Fund III, L.P.) (Fully diluted 0.2%)(8)

          2,513     2,461  

                  24,702     22,812  

                           

Evergreen Skills Lux S.á r.l. (d/b/a Skillsoft)(11)(13)

 

Technology-based Performance Support Solutions

                       

     

LIBOR Plus 8.25% (Floor 1.00%), Current Coupon 9.25%, Secured Debt (Maturity — April 28, 2022)(9)

    7,000     6,857     5,274  

                           

Flavors Holdings Inc.(11)

 

Global Provider of Flavoring and Sweetening Products and Solutions

                       

     

LIBOR Plus 5.75% (Floor 1.00%), Current Coupon 6.75%, Secured Debt (Maturity — April 3, 2020)(9)

    12,483     12,082     10,174  

                           

GI KBS Merger Sub LLC(11)

 

Outsourced Janitorial Services to Retail/Grocery Customers

                       

     

LIBOR Plus 5.00% (Floor 1.00%), Current Coupon 6.00%, Secured Debt (Maturity — October 29, 2021)(9)

    3,900     3,851     3,842  

     

LIBOR Plus 8.50% (Floor 1.00%), Current Coupon 9.50%, Secured Debt (Maturity — April 29, 2022)(9)

    800     787     760  

                  4,638     4,602  

                           

Grace Hill, LLC(10)

 

Online Training Tools for the Multi-Family Housing Industry

                       

     

Prime Plus 5.25% (Floor 1.00%), Current Coupon 9.00%, Secured Debt (Maturity — August 15, 2019)(9)

    634     623     634  

     

LIBOR Plus 6.25% (Floor 1.00%), Current Coupon 7.25%, Secured Debt (Maturity — August 15, 2019)(9)

    11,552     11,472     11,552  

                  12,095     12,186  

                           

Great Circle Family Foods, LLC(10)

 

Quick Service Restaurant Franchise

                       

     

LIBOR Plus 6.00% (Floor 1.00%), Current Coupon 7.00%, Secured Debt (Maturity — October 28, 2019)(9)

    7,648     7,598     7,648  

                           

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MAIN STREET CAPITAL CORPORATION

Consolidated Schedule of Investments — (Continued)

December 31, 2016
(dollars in thousands)

Portfolio Company(1)
  Business Description
  Type of Investment(2)(3)
  Principal(4)
  Cost(4)
  Fair Value
 
   

Grupo Hima San Pablo, Inc.(11)

 

Tertiary Care Hospitals

                       

     

LIBOR Plus 7.00% (Floor 1.50%), Current Coupon 8.50%, Secured Debt (Maturity — January 31, 2018)(9)

    4,813     4,787     3,734  

     

13.75% Secured Debt (Maturity — July 31, 2018)

    2,000     1,962     1,205  

                  6,749     4,939  

                           

GST Autoleather, Inc.(11)

 

Automotive Leather Manufacturer

                       

     

LIBOR Plus 5.50% (Floor 1.00%), Current Coupon 6.50%, Secured Debt (Maturity — July 10, 2020)(9)

    13,317     13,215     13,017  

                           

Guitar Center, Inc.(11)

 

Musical Instruments Retailer

                       

     

6.5% Secured Debt (Maturity — April 15, 2019)

    14,625     13,890     13,272  

                           

Hojeij Branded Foods, LLC(10)

 

Multi-Airport, Multi- Concept Restaurant Operator

                       

     

LIBOR Plus 6.50% (Floor 1.00%), Current Coupon 7.50%, Secured Debt (Maturity — July 27, 2021)(9)

    5,432     5,390     5,432  

                           

Hoover Group, Inc.(10)(13)

 

Provider of Storage Tanks and Related Products to the Energy and Petrochemical Markets

                       

     

LIBOR Plus 7.25% (Floor 1.00%), Current Coupon 8.25%, Secured Debt (Maturity — January 28, 2021)(9)

    8,546     7,963     7,963  

                           

Horizon Global Corporation(11)(13)

 

Auto Parts Manufacturer

                       

     

LIBOR Plus 6.00% (Floor 1.00%), Current Coupon 7.00%, Secured Debt (Maturity — June 30, 2021)(9)

    9,375     9,249     9,551  

                           

Hostway Corporation(11)

 

Managed Services and Hosting Provider

                       

     

LIBOR Plus 6.75% (Floor 1.25%), Current Coupon 8.00%, Secured Debt (Maturity — December 13, 2019)(9)

    10,577     10,515     10,028  

                           

Hunter Defense Technologies, Inc.(11)

 

Provider of Military and Commercial Shelters and Systems

                       

     

LIBOR Plus 6.00% (Floor 1.00%), Current Coupon 7.00%, Secured Debt (Maturity — August 5, 2019)(9)

    9,606     9,120     8,933  

                           

Hygea Holdings, Corp.(10)

 

Provider of Physician Services

                       

     

LIBOR Plus 9.25%, Current Coupon 10.17%, Secured Debt (Maturity — February 24, 2019)

    7,875     7,381     7,615  

     

Warrants (5,990,452 equivalent shares)

          369     1,530  

                  7,750     9,145  

                           

iEnergizer Limited(11)(13)

 

Provider of Business Outsourcing Solutions

                       

     

LIBOR Plus 6.00% (Floor 1.25%), Current Coupon 7.25%, Secured Debt (Maturity — May 1, 2019)(9)

    9,918     9,467     9,621  

                           

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MAIN STREET CAPITAL CORPORATION

Consolidated Schedule of Investments — (Continued)

December 31, 2016
(dollars in thousands)

Portfolio Company(1)
  Business Description
  Type of Investment(2)(3)
  Principal(4)
  Cost(4)
  Fair Value
 
   

Indivior Finance LLC(11)(13)

 

Specialty Pharmaceutical Company Treating Opioid Dependence

                       

     

LIBOR Plus 6.00% (Floor 1.00%), Current Coupon 7.00%, Secured Debt (Maturity — December 19, 2019)(9)

    6,750     6,455     6,809  

                           

Industrial Container Services, LLC(10)

 

Steel Drum Reconditioner

                       

     

LIBOR Plus 5.75% (Floor 1.00%), Current Coupon 6.75%, Secured Debt (Maturity — December 31, 2018)(9)

    8,949     8,932     8,949  

                           

Industrial Services Acquisition, LLC(10)

 

Industrial Cleaning Services

                       

     

11.25% Current / 0.75% PIK Unsecured Debt (Maturity — December 17, 2022)

    4,519     4,433     4,433  

     

Member Units (Industrial Services Investments, LLC) (900,000 units)

          900     900  

                  5,333     5,333  

                           

Infinity Acquisition Finance Corp.(11)

 

Application Software for Capital Markets

                       

     

7.25% Unsecured Debt (Maturity — August 1, 2022)

    5,700     5,366     4,802  

                           

Inn of the Mountain Gods Resort and Casino(11)

 

Hotel & Casino Owner & Operator

                       

     

9.25% Secured Debt (Maturity — November 30, 2020)

    6,249     5,924     5,687  

                           

Intertain Group Limited(11)(13)

 

Business-to-Consumer Online Gaming Operator

                       

     

LIBOR Plus 6.50% (Floor 1.00%), Current Coupon 7.50%, Secured Debt (Maturity — April 8, 2022)(9)

    4,426     4,364     4,465  

                           

iPayment, Inc.(11)

 

Provider of Merchant Acquisition

                       

     

LIBOR Plus 5.25% (Floor 1.50%), Current Coupon 6.75%, Secured Debt (Maturity — May 8, 2017)(9)

    14,918     14,907     14,395  

                           

iQor US Inc.(11)

 

Business Process Outsourcing Services Provider

                       

     

LIBOR Plus 5.00% (Floor 1.00%), Current Coupon 6.00%, Secured Debt (Maturity — April 1, 2021)(9)

    9,812     9,671     9,413  

                           

irth Solutions, LLC

 

Provider of Damage Prevention Information Technology Services

                       

     

Member Units (27,893 units)

          1,441     1,790  

                           

Jackmont Hospitality, Inc.(10)

 

Franchisee of Casual Dining Restaurants

                       

     

LIBOR Plus 4.25% (Floor 1.00%), Current Coupon 5.25% / 2.50% PIK, Current Coupon Plus PIK 7.75%, Secured Debt (Maturity — May 26, 2021)(9)

    4,445     4,429     4,445  

                           

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MAIN STREET CAPITAL CORPORATION

Consolidated Schedule of Investments — (Continued)

December 31, 2016
(dollars in thousands)

Portfolio Company(1)
  Business Description
  Type of Investment(2)(3)
  Principal(4)
  Cost(4)
  Fair Value
 
   

Joerns Healthcare, LLC(11)

 

Manufacturer and Distributor of Health Care Equipment & Supplies

                       

     

LIBOR Plus 5.00% (Floor 1.00%), Current Coupon 6.00%, Secured Debt (Maturity — May 9, 2020)(9)

    14,655     14,560     13,776  

                           

JSS Holdings, Inc.(11)

 

Aircraft Maintenance Program Provider

                       

     

LIBOR Plus 6.50% (Floor 1.00%), Current Coupon 7.50%, Secured Debt (Maturity — August 31, 2021)(9)

    12,829     12,562     12,765  

                           

Kendra Scott, LLC(11)

 

Jewelry Retail Stores

                       

     

LIBOR Plus 6.00% (Floor 1.00%), Current Coupon 7.00%, Secured Debt (Maturity — July 17, 2020)(9)

    5,578     5,536     5,550  

                           

Keypoint Government Solutions, Inc.(11)

 

Provider of Pre-Employment Screening Services

                       

     

LIBOR Plus 6.50% (Floor 1.25%), Current Coupon 7.75%, Secured Debt (Maturity — November 13, 2017)(9)

    5,459     5,443     5,431  

                           

LaMi Products, LLC(10)

 

General Merchandise Distribution

                       

     

LIBOR Plus 6.50% (Floor 1.00%), Current Coupon 7.50%, Secured Debt (Maturity — September 16, 2020)(9)

    10,735     10,658     10,735  

                           

Larchmont Resources, LLC(11)

 

Oil & Gas Exploration & Production

                       

     

LIBOR Plus 9.00% (Floor 1.00%), Current Coupon 10.00%, PIK Secured Debt (Maturity — August 7, 2020)(9)

    2,260     2,260     2,209  

     

Member Units (Larchmont Intermediate Holdco, LLC) (2,828 units)

          353     1,193  

                  2,613     3,402  

                           

LKCM Headwater Investments I, L.P.(12)(13)

 

Investment Partnership

                       

     

LP Interests (Fully diluted 2.3%)

          2,500     3,627  

                           

Logix Acquisition Company, LLC(10)

 

Competitive Local Exchange Carrier

                       

     

LIBOR Plus 8.28% (Floor 1.00%), Current Coupon 9.28%, Secured Debt (Maturity — June 24, 2021)(9)

    8,593     8,457     8,593  

                           

Looking Glass Investments, LLC(12)(13)

 

Specialty Consumer Finance

                       

     

9% Unsecured Debt (Maturity — June 30, 2020)

    188     188     188  

     

Member Units (2.5 units)

          125     125  

     

Member Units (LGI Predictive Analytics LLC) (190,712 units)(8)

          160     160  

                  473     473  

                           

105


Table of Contents


MAIN STREET CAPITAL CORPORATION

Consolidated Schedule of Investments — (Continued)

December 31, 2016
(dollars in thousands)

Portfolio Company(1)
  Business Description
  Type of Investment(2)(3)
  Principal(4)
  Cost(4)
  Fair Value
 
   

Messenger, LLC(10)

 

Supplier of Specialty Stationery and Related Products to the Funeral Industry

                       

     

LIBOR Plus 7.25% (Floor 1.00%), Current Coupon 8.25%, Secured Debt (Maturity — September 9, 2020)(9)

    14,403     14,326     14,403  

                           

Minute Key, Inc.

 

Operator of Automated Key Duplication Kiosks

                       

     

10% Current / 2% PIK Secured Debt (Maturity — September 19, 2019)

    15,700     15,404     15,404  

     

Warrants (1,437,409 equivalent units)

          280     470  

                  15,684     15,874  

                           

Mood Media Corporation(11)(13)

 

Provider of Electronic Equipment

                       

     

LIBOR Plus 6.00% (Floor 1.00%), Current Coupon 7.00%, Secured Debt (Maturity — May 1, 2019)(9)

    14,805     14,645     14,312  

                           

New Media Holdings II LLC(11)(13)

 

Local Newspaper Operator

                       

     

LIBOR Plus 6.25% (Floor 1.00%), Current Coupon 7.25%, Secured Debt (Maturity — June 4, 2020)(9)

    14,888     14,632     14,813  

                           

North American Lifting Holdings, Inc.(11)

 

Crane Service Provider

                       

     

LIBOR Plus 4.50% (Floor 1.00%), Current Coupon 5.50%, Secured Debt (Maturity — November 27, 2020)(9)

    3,865     3,235     3,375  

                           

North Atlantic Trading Company, Inc.(11)

 

Marketer/Distributor of Tobacco Products

                       

     

LIBOR Plus 6.50% (Floor 1.25%), Current Coupon 7.75%, Secured Debt (Maturity — January 13, 2020)(9)

    9,396     9,343     9,337  

                           

Novitex Intermediate, LLC(11)

 

Provider of Document Management Services

                       

     

LIBOR Plus 6.75% (Floor 1.25%), Current Coupon 8.00%, Secured Debt (Maturity — July 7, 2020)(9)

    9,335     9,175     8,985  

                           

NTM Acquisition Corp.(11)

 

Provider of B2B Travel Information Content

                       

     

LIBOR Plus 6.25% (Floor 1.00%), Current Coupon 7.25%, Secured Debt (Maturity — June 7, 2022)(9)

    4,144     4,085     4,128  

                           

Ospemifene Royalty Sub LLC (QuatRx)(10)

 

Estrogen-Deficiency Drug Manufacturer and Distributor

                       

     

11.5% Secured Debt (Maturity — November 15, 2026)(14)

    5,071     5,071     2,088  

                           

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MAIN STREET CAPITAL CORPORATION

Consolidated Schedule of Investments — (Continued)

December 31, 2016
(dollars in thousands)

Portfolio Company(1)
  Business Description
  Type of Investment(2)(3)
  Principal(4)
  Cost(4)
  Fair Value
 
   

Pardus Oil and Gas, LLC(11)

 

Oil & Gas Exploration & Production

                       

     

13% PIK Secured Debt (Maturity — November 12, 2021)

    1,869     1,869     1,869  

     

5% PIK Secured Debt (Maturity — May 13, 2022)

    992     992     562  

     

Member Units (2,472 units)

          2,472     970  

                  5,333     3,401  

                           

Paris Presents Incorporated(11)

 

Branded Cosmetic and Bath Accessories

                       

     

LIBOR Plus 8.75% (Floor 1.00%), Current Coupon 9.75%, Secured Debt (Maturity — December 31, 2021)(9)

    2,000     1,969     1,960  

                           

Parq Holdings Limited Partnership(11)(13)

 

Hotel & Casino Operator

                       

     

LIBOR Plus 7.50% (Floor 1.00%), Current Coupon 8.50%, Secured Debt (Maturity — December 17, 2020)(9)

    7,500     7,394     7,388  

                           

Permian Holdco 2, Inc.(11)

 

Storage Tank Manufacturer

                       

     

14% PIK Unsecured Debt (Maturity — October 15, 2021)

    198     198     198  

     

Preferred Stock (Permian Holdco 1, Inc.) (154,558 units)

          799     799  

     

Common Stock (Permian Holdco 1, Inc.) (154,558 units)

               

                  997     997  

                           

Pernix Therapeutics Holdings, Inc.(10)

 

Pharmaceutical Royalty

                       

     

12% Secured Debt (Maturity — August 1, 2020)

    3,447     3,447     3,326  

                           

Pet Holdings ULC(11)(13)

 

Retailer of Pet Products and Supplies to Consumers

                       

     

LIBOR Plus 5.50% (Floor 1.00%), Current Coupon 6.50%, Secured Debt (Maturity — July 5, 2022)(9)

    2,494     2,470     2,503  

                           

Pike Corporation(11)

 

Construction and Maintenance Services for Electric Transmission and Distribution Infrastructure

                       

     

LIBOR Plus 8.50% (Floor 1.00%), Current Coupon 9.50%, Secured Debt (Maturity — June 22, 2022)(9)

    14,000     13,720     14,082  

                           

Point.360(10)

 

Fully Integrated Provider of Digital Media Services

                       

     

Warrants (65,463 equivalent shares)

          69      

     

Common Stock (163,658 shares)

          273     63  

                  342     63  

                           

Polycom, Inc.(11)

 

Provider of Audio and Video Communication Solutions

                       

     

LIBOR Plus 6.50% (Floor 1.00%), Current Coupon 7.50%, Secured Debt (Maturity — September 27, 2023)(9)

    12,089     11,617     12,194  

                           

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Table of Contents


MAIN STREET CAPITAL CORPORATION

Consolidated Schedule of Investments — (Continued)

December 31, 2016
(dollars in thousands)

Portfolio Company(1)
  Business Description
  Type of Investment(2)(3)
  Principal(4)
  Cost(4)
  Fair Value
 
   

PPC/SHIFT LLC(10)

 

Provider of Digital Solutions to Automotive Industry

                       

     

LIBOR Plus 6.00% (Floor 1.00%), Current Coupon 7.00%, Secured Debt (Maturity — June 6, 2022)(9)

    7,000     6,852     6,852  

                           

Prowler Acquisition Corp.(11)

 

Specialty Distributor to the Energy Sector

                       

     

LIBOR Plus 4.50% (Floor 1.00%), Current Coupon 5.50%, Secured Debt (Maturity — January 28, 2020)(9)

    9,519     7,904     7,044  

                           

PT Network, LLC(10)

 

Provider of Outpatient Physical Therapy and Sports Medicine Services

                       

     

LIBOR Plus 6.50% (Floor 1.00%), Current Coupon 7.50%, Secured Debt (Maturity — November 30, 2021)(9)

    16,225     15,979     15,979  

                           

QBS Parent, Inc.(11)

 

Provider of Software and Services to the Oil & Gas Industry

                       

     

LIBOR Plus 4.75% (Floor 1.00%), Current Coupon 5.75%, Secured Debt (Maturity — August 7, 2021)(9)

    11,274     11,201     11,161  

                           

Raley's(11)

 

Family-Owned Supermarket Chain

                       

     

LIBOR Plus 6.25% (Floor 1.00%), Current Coupon 7.25%, Secured Debt (Maturity — May 18, 2022)(9)

    4,195     4,125     4,242  

                           

Redbox Automated Retail, LLC(11)

 

Operator of Home Media Entertainment Kiosks

                       

     

LIBOR Plus 7.50% (Floor 1.00%), Current Coupon 8.50%, Secured Debt (Maturity — September 27, 2021)(9)

    15,000     14,581     14,629  

                           

Renaissance Learning, Inc.(11)

 

Technology-based K-12 Learning Solutions

                       

     

LIBOR Plus 7.00% (Floor 1.00%), Current Coupon 8.00%, Secured Debt (Maturity — April 11, 2022)(9)

    3,000     2,978     2,987  

                           

RGL Reservoir Operations Inc.(11)(13)

 

Oil & Gas Equipment and Services

                       

     

LIBOR Plus 5.00% (Floor 1.00%), Current Coupon 6.00%, Secured Debt (Maturity — August 13, 2021)(9)

    3,910     3,826     880  

                           

RM Bidder, LLC(10)

 

Scripted and Unscripted TV and Digital Programming Provider

                       

     

Warrants (327,532 equivalent units)

          425     300  

     

Member Units (2,779 units)

          46     44  

                  471     344  

                           

SAExploration, Inc.(10)(13)

 

Geophysical Services Provider

                       

     

Common Stock (50 shares)

          65     3  

                           

108


Table of Contents


MAIN STREET CAPITAL CORPORATION

Consolidated Schedule of Investments — (Continued)

December 31, 2016
(dollars in thousands)

Portfolio Company(1)
  Business Description
  Type of Investment(2)(3)
  Principal(4)
  Cost(4)
  Fair Value
 
   

SAFETY Investment Holdings, LLC

 

Provider of Intelligent Driver Record Monitoring Software and Services

                       

     

Member Units (2,000,000 units)

          2,000     2,000  

                           

Salient Partners L.P.(11)

 

Provider of Asset Management Services

                       

     

LIBOR Plus 8.50% (Floor 1.00%), Current Coupon 9.50%, Secured Debt (Maturity — June 9, 2021)(9)

    10,812     10,538     10,352  

                           

School Specialty, Inc.(11)

 

Distributor of Education Supplies and Furniture

                       

     

LIBOR Plus 8.50% (Floor 1.00%), Current Coupon 9.50%, Secured Debt (Maturity — June 11, 2019)(9)

    5,712     5,632     5,784  

                           

Sigma Electric Manufacturing Corporation(10)(13)

 

Manufacturer and Distributor of Electrical Fittings and Parts

                       

     

LIBOR Plus 7.25% (Floor 1.00%), Current Coupon 8.25%, Secured Debt (Maturity — October 13, 2021)(9)

    12,500     12,200     12,200  

                           

Sorenson Communications, Inc.(11)

 

Manufacturer of Communication Products for Hearing Impaired

                       

     

LIBOR Plus 5.75% (Floor 2.25%), Current Coupon 8.00%, Secured Debt (Maturity — April 30, 2020)(9)

    13,371     13,283     13,271  

                           

Strike, LLC(11)

 

Pipeline Construction and Maintenance Services

                       

     

LIBOR Plus 8.00% (Floor 1.00%), Current Coupon 9.00%, Secured Debt (Maturity — November 30, 2022)(9)

    10,000     9,666     9,864  

                           

Subsea Global Solutions, LLC(10)

 

Underwater Maintenance and Repair Services

                       

     

LIBOR Plus 6.00% (Floor 1.50%), Current Coupon 7.50%, Secured Debt (Maturity — March 17, 2020)(9)

    5,629     5,588     5,624  

                           

Synagro Infrastructure Company, Inc(11)

 

Waste Management Services

                       

     

LIBOR Plus 5.25% (Floor 1.00%), Current Coupon 6.25%, Secured Debt (Maturity — August 22, 2020)(9)

    4,714     4,659     4,136  

                           

Targus International, LLC(11)

 

Distributor of Protective Cases for Mobile Devices

                       

     

15% PIK Secured Debt (Maturity — December 31, 2019)

    1,140     1,140     1,140  

     

Common Stock (Targus Cayman HoldCo Limited) (249,614 shares)(13)

          2,555     2,260  

                  3,695     3,400  

                           

TE Holdings, LLC(11)

 

Oil & Gas Exploration & Production

                       

     

Member Units (97,048 units)

          970     728  

                           

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Table of Contents


MAIN STREET CAPITAL CORPORATION

Consolidated Schedule of Investments — (Continued)

December 31, 2016
(dollars in thousands)

Portfolio Company(1)
  Business Description
  Type of Investment(2)(3)
  Principal(4)
  Cost(4)
  Fair Value
 
   

TeleGuam Holdings, LLC(11)

 

Cable and Telecom Services Provider

                       

     

LIBOR Plus 4.00% (Floor 1.25%), Current Coupon 5.25%, Secured Debt (Maturity — December 10, 2018)(9)

    7,622     7,613     7,546  

     

LIBOR Plus 7.50% (Floor 1.25%), Current Coupon 8.75%, Secured Debt (Maturity — June 10, 2019)(9)

    10,500     10,442     10,290  

                  18,055     17,836  

                           

The Topps Company, Inc.(11)

 

Trading Cards & Confectionary

                       

     

LIBOR Plus 6.00% (Floor 1.25%), Current Coupon 7.25%, Secured Debt (Maturity — October 2, 2020)(9)

    2,218     2,208     2,226  

                           

TMC Merger Sub Corp.(11)

 

Refractory & Maintenance Services Provider

                       

     

LIBOR Plus 6.25% (Floor 1.00%), Current Coupon 7.25%, Secured Debt (Maturity — October 31, 2022)(9)

    12,500     12,376     12,438  

                           

TOMS Shoes, LLC(11)

 

Global Designer, Distributor, and Retailer of Casual Footwear

                       

     

LIBOR Plus 5.50% (Floor 1.00%), Current Coupon 6.50%, Secured Debt (Maturity — October 30, 2020)(9)

    4,913     4,567     3,635  

                           

Travel Leaders Group, LLC(11)

 

Travel Agency Network Provider

                       

     

LIBOR Plus 6.00% (Floor 1.00%), Current Coupon 7.00%, Secured Debt (Maturity — December 7, 2020)(9)

    10,994     10,936     10,975  

                           

Truck Bodies and Equipment International, Inc.(10)

 

Manufacturer of Dump Truck Bodies and Dump Trailers

                       

     

LIBOR Plus 7.50% (Floor 1.00%), Current Coupon 8.50%, Secured Debt (Maturity — March 31, 2021)(9)

    15,750     15,602     15,602  

                           

TVG-I-E CMN ACQUISITION, LLC(10)

 

Organic Lead Generation for Online Postsecondary Schools

                       

     

LIBOR Plus 6.00% (Floor 1.00%), Current Coupon 7.00%, Secured Debt (Maturity — November 3, 2021)(9)

    6,459     6,334     6,334  

                           

Tweddle Group, Inc.(11)

 

Provider of Technical Information Services to Automotive OEMs

                       

     

LIBOR Plus 6.00% (Floor 1.00%), Current Coupon 7.00%, Secured Debt (Maturity — October 21, 2022)(9)

    8,462     8,295     8,419  

                           

UniRush, LLC

 

Provider of Prepaid Debit Card Solutions

                       

     

12% Secured Debt (Maturity — February 1, 2019)

    12,000     10,981     12,000  

     

Warrants (444,725 equivalent units)

          1,250     1,250  

                  12,231     13,250  

                           

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MAIN STREET CAPITAL CORPORATION

Consolidated Schedule of Investments — (Continued)

December 31, 2016
(dollars in thousands)

Portfolio Company(1)
  Business Description
  Type of Investment(2)(3)
  Principal(4)
  Cost(4)
  Fair Value
 
   

US Joiner Holding Company(11)

 

Marine Interior Design and Installation

                       

     

LIBOR Plus 6.00% (Floor 1.00%), Current Coupon 7.00%, Secured Debt (Maturity — April 16, 2020)(9)

    11,514     11,435     11,456  

                           

U.S. TelePacific Corp.(10)

 

Provider of Communications and Managed Services

                       

     

LIBOR Plus 8.50% (Floor 1.00%), Current Coupon 9.50%, Secured Debt (Maturity — February 24, 2021)(9)

    7,500     7,377     7,377  

                           

VCVH Holding Corp. (Verisk)(11)

 

Healthcare Technology Services Focused on Revenue Maximization

                       

     

LIBOR Plus 9.25% (Floor 1.00%), Current Coupon 10.25%, Secured Debt (Maturity — June 1, 2024)(9)

    1,500     1,464     1,488  

                           

Virtex Enterprises, LP(10)

 

Specialty, Full-Service Provider of Complex Electronic Manufacturing Services

                       

     

12% Secured Debt (Maturity — December 27, 2018)

    1,667     1,559     1,559  

     

Preferred Class A Units (14 units; 5% cumulative)(8)

          333     612  

     

Warrants (11 equivalent units)

          186     220  

                  2,078     2,391  

                           

Wellnext, LLC(10)

 

Manufacturer of Supplements and Vitamins

                       

     

LIBOR Plus 9.00% (Floor 0.50%), Current Coupon 9.85%, Secured Debt (Maturity — May 23, 2021)(9)

    10,058     9,968     10,058  

                           

Western Dental Services, Inc.(11)

 

Dental Care Services

                       

     

LIBOR Plus 6.50% (Floor 1.00%), Current Coupon 7.50%, Secured Debt (Maturity — November 1, 2018)(9)

    4,904     4,902     4,885  

                           

Wilton Brands LLC(11)

 

Specialty Housewares Retailer

                       

     

LIBOR Plus 7.25% (Floor 1.25%), Current Coupon 8.50%, Secured Debt (Maturity — August 30, 2018)(9)

    1,153     1,147     1,093  

                           

Worley Claims Services, LLC(10)

 

Insurance Adjustment Management and Services Provider

                       

     

LIBOR Plus 8.00% (Floor 1.00%), Current Coupon 9.00%, Secured Debt (Maturity — October 31, 2020)(9)

    6,386     6,342     6,386  

                           

YP Holdings LLC(11)

 

Online and Offline Advertising Operator

                       

     

LIBOR Plus 11.00% (Floor 1.25%), Current Coupon 12.25%, Secured Debt (Maturity — June 4, 2018)(9)

    11,428     10,969     11,398  

                           

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Table of Contents


MAIN STREET CAPITAL CORPORATION

Consolidated Schedule of Investments — (Continued)

December 31, 2016
(dollars in thousands)

Portfolio Company(1)
  Business Description
  Type of Investment(2)(3)
  Principal(4)
  Cost(4)
  Fair Value
 
   

Zilliant Incorporated

 

Price Optimization and Margin Management Solutions

                       

     

Preferred Stock (186,777 shares)

          154     260  

     

Warrants (952,500 equivalent shares)

          1,071     1,190  

                  1,225     1,450  

Subtotal Non-Control/Non-Affiliate Investments (51.4% of total investments at fair value)

  $ 1,037,510   $ 1,026,676  

Total Portfolio Investments, December 31, 2016

  $ 1,871,883   $ 1,996,906  

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MAIN STREET CAPITAL CORPORATION

Consolidated Schedule of Investments — (Continued)

December 31, 2016
(dollars in thousands)

Portfolio Company(1)
  Business Description
  Type of Investment(2)(3)
  Principal(4)
  Cost(4)
  Fair Value
 
   

Marketable Securities and Idle Funds Investments

             

                           

Other Marketable Securities and Idle Funds Investments(13)(15)

 

Investments in Marketable Securities and Diversified, Registered Bond Funds

                       

                $   $  

Subtotal Marketable Securities and Idle Funds Investments (0.0% of total investments at fair value)

  $   $  

Total Investments, December 31, 2016

  $ 1,871,883   $ 1,996,906  

(1)
All investments are Lower Middle Market portfolio investments, unless otherwise noted. See Note B for a description of Lower Middle Market portfolio investments. All of the Company's investments, unless otherwise noted, are encumbered either as security for the Company's Credit Agreement or in support of the SBA-guaranteed debentures issued by the Funds.

(2)
Debt investments are income producing, unless otherwise noted. Equity and warrants are non-income producing, unless otherwise noted.

(3)
See Note C for a summary of geographic location of portfolio companies.

(4)
Principal is net of repayments. Cost is net of repayments and accumulated unearned income.

(5)
Control investments are defined by the Investment Company Act of 1940, as amended ("1940 Act") as investments in which more than 25% of the voting securities are owned or where the ability to nominate greater than 50% of the board representation is maintained.

(6)
Affiliate investments are defined by the 1940 Act as investments in which between 5% and 25% of the voting securities are owned and the investments are not classified as Control investments.

(7)
Non-Control/Non-Affiliate investments are defined by the 1940 Act as investments that are neither Control investments nor Affiliate investments.

(8)
Income producing through dividends or distributions.

(9)
Index based floating interest rate is subject to contractual minimum interest rate. A majority of the variable rate loans in the Company's investment portfolio bear interest at a rate that may be determined by reference to either LIBOR or an alternate Base Rate (commonly based on the Federal Funds Rate or the Prime Rate), which typically resets semi-annually, quarterly, or monthly at the borrower's option. The borrower may also elect to have multiple interest reset periods for each loan. For each such loan, the Company has provided the weighted average annual stated interest rate in effect at December 31, 2016. As noted in this schedule, 64% (based on the par amount of the loans) of the loans contain LIBOR floors which range between 0.50% and 2.25%, with a weighted-average LIBOR floor of approximately 1.04%.

(10)
Private Loan portfolio investment. See Note B for a description of Private Loan portfolio investments.

(11)
Middle Market portfolio investment. See Note B for a description of Middle Market portfolio investments.

(12)
Other Portfolio investment. See Note B for a description of Other Portfolio investments.

(13)
Investment is not a qualifying asset as defined under Section 55(a) of the 1940 Act. Qualifying assets must represent at least 70% of total assets at the time of acquisition of any additional non-qualifying assets.

(14)
Non-accrual and non-income producing investment.

(15)
Marketable securities and idle fund investments.

(16)
External Investment Manager. Investment is not encumbered as security for the Company's Credit Agreement or in support of the SBA-guaranteed debentures issued by the Funds.

(17)
Maturity date is under on-going negotiations with the portfolio company and other lenders, if applicable.

(18)
Portfolio company is in a bankruptcy process and, as such, the maturity date of our debt investments in this portfolio company will not be finally determined until such process is complete. As noted in footnote (14), our debt investments in this portfolio company are on non-accrual status.

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Table of Contents


MAIN STREET CAPITAL CORPORATION

Consolidated Schedule of Investments

December 31, 2015
(dollars in thousands)

Portfolio Company(1)
  Business Description
  Type of Investment(2)(3)
  Principal(4)
  Cost(4)
  Fair Value
 
   

Control Investments(5)

 

 

 

 

                   

                           

Access Media Holdings, LLC(10)

 

Private Cable Operator

                       

     

5.00% Current / 5.00% PIK Secured Debt (Maturity — July 22, 2020)

  $ 21,554   $ 21,554   $ 20,380  

     

Preferred Member Units (4,500,000 units; 12% cumulative)

          4,394     2,000  

     

Member Units (45 units)

          1      

                  25,949     22,380  

                           

AmeriTech College, LLC

 

For-Profit Nursing and Healthcare College

                       

     

10% Secured Debt (Maturity — May 15, 2016)

    514     514     514  

     

10% Secured Debt (Maturity — November 30, 2019)

    489     489     489  

     

10% Secured Debt (Maturity — January 31, 2020)

    3,025     3,025     3,025  

     

Preferred Member Units (294 units; 5%)(8)

          2,291     2,291  

                  6,319     6,319  

                           

ASC Interests, LLC

 

Recreational and Educational Shooting Facility

                       

     

11% Secured Debt (Maturity — July 31, 2018)

    2,500     2,470     2,500  

     

Member Units (1,500 units)(8)

          1,500     2,230  

                  3,970     4,730  

                           

Bond-Coat, Inc.

 

Casing and Tubing Coating Services

                       

     

12% Secured Debt (Maturity — December 28, 2017)

    11,596     11,521     11,596  

     

Common Stock (57,508 shares)

          6,350     9,140  

                  17,871     20,736  

                           

Café Brazil, LLC

 

Casual Restaurant Group

                       

     

Member Units (1,233 units)(8)

          1,742     7,330  

                           

CBT Nuggets, LLC

 

Produces and Sells IT Training Certification Videos

                       

     

Member Units (416 units)(8)

          1,300     42,120  

                           

CMS Minerals LLC

 

Oil & Gas Exploration & Production

                       

     

Preferred Member Units (458 units)(8)

          2,967     6,914  

                           

Datacom, LLC

 

Technology and Telecommunications Provider

                       

     

10.5% Secured Debt (Maturity — May 31, 2019)

    11,205     11,122     10,970  

     

Class A Preferred Member Units (15% cumulative)(8)

          1,181     1,181  

     

Class B Preferred Member Units (6,453 units)

          6,030     5,079  

                  18,333     17,230  

                           

Garreco, LLC

 

Manufacturer and Supplier of Dental Products

                       

     

14% Secured Debt (Maturity — January 12, 2018)

    5,800     5,739     5,739  

     

Member Units (1,200 units)

          1,200     1,270  

                  6,939     7,009  

                           

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Table of Contents


MAIN STREET CAPITAL CORPORATION

Consolidated Schedule of Investments — (Continued)

December 31, 2015
(dollars in thousands)

Portfolio Company(1)
  Business Description
  Type of Investment(2)(3)
  Principal(4)
  Cost(4)
  Fair Value
 
   

GRT Rubber Technologies LLC

 

Manufacturer of Engineered Rubber Products

                       

     

LIBOR Plus 9.00% (Floor 1.00%), Current Coupon 10.00%, Secured Debt (Maturity — December 19, 2019)(9)

    16,122     15,988     15,988  

     

Member Units (5,879 units)

          13,065     15,580  

                  29,053     31,568  

                           

Gulf Manufacturing, LLC

 

Manufacturer of Specialty Fabricated Industrial Piping Products

                       

     

9% PIK Secured Debt (Ashland Capital IX, LLC) (Maturity — June 30, 2017)

    777     777     777  

     

Member Units (438 units)(8)

          2,980     13,770  

                  3,757     14,547  

                           

Harrison Hydra-Gen, Ltd.

 

Manufacturer of Hydraulic Generators

                       

     

9% Secured Debt (Maturity — January 8, 2016)

    5,010     5,010     5,010  

     

Preferred Stock (8% cumulative)(8)

          1,361     1,361  

     

Common Stock (107,456 shares)

          718     2,600  

                  7,089     8,971  

                           

Hawthorne Customs and Dispatch Services, LLC

 

Facilitator of Import Logistics, Brokerage, and Warehousing

                       

     

Member Units (500 units)(8)

          589     460  

     

Member Units (Wallisville Real Estate, LLC) (588,210 units)(8)

          1,215     2,220  

                  1,804     2,680  

                           

HW Temps LLC

 

Temporary Staffing Solutions

                       

     

LIBOR Plus 9.50% (Floor 1.00%), Current Coupon 10.50%, Secured Debt (Maturity July 2, 2020)(9)

    9,976     9,884     9,884  

     

Preferred Member Units (3,200 units)(8)

          3,942     3,942  

                  13,826     13,826  

                           

Hydratec, Inc.

 

Designer and Installer of Micro-Irrigation Systems

                       

     

Common Stock (7,095 shares)(8)

          7,095     14,950  

IDX Broker, LLC

 

Provider of Marketing and CRM Tools for the Real Estate Industry

                       

     

12.5% Secured Debt (Maturity — November 15, 2018)

    11,350     11,281     11,350  

     

Member Units (5,400 units)

          5,606     6,440  

                  16,887     17,790  

                           

Indianapolis Aviation Partners, LLC

 

Fixed Base Operator

                       

     

15% Secured Debt (Maturity — January 15, 2016)

    3,100     3,095     3,100  

     

Warrants (1,046 equivalent units)

          1,129     2,540  

                  4,224     5,640  

                           

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MAIN STREET CAPITAL CORPORATION

Consolidated Schedule of Investments — (Continued)

December 31, 2015
(dollars in thousands)

Portfolio Company(1)
  Business Description
  Type of Investment(2)(3)
  Principal(4)
  Cost(4)
  Fair Value
 
   

Jensen Jewelers of Idaho, LLC

 

Retail Jewelry Store

                       

     

Prime Plus 6.75% (Floor 2.00%), Current Coupon 10.25%, Secured Debt (Maturity — November 14, 2016)(9)

    4,055     4,028     4,055  

     

Member Units (627 units)(8)

          811     4,750  

                  4,839     8,805  

                           

Lamb's Venture, LLC

 

Aftermarket Automotive Services Chain

                       

     

11% Secured Debt (Maturity — May 31, 2018)

    7,962     7,961     7,962  

     

Preferred Equity (non-voting)

          328     328  

     

Member Units (742 units)

          5,273     4,690  

     

9.5% Secured Debt (Lamb's Real Estate Investment I, LLC) (Maturity — October 1, 2025)

    919     919     919  

     

Member Units (Lamb's Real Estate Investment I, LLC) (1,000 units)(8)

          625     1,240  

                  15,106     15,139  

                           

Lighting Unlimited, LLC

 

Commercial and Residential Lighting Products and Design Services

                       

     

8% Secured Debt (Maturity — August 22, 2016)

    1,514     1,514     1,514  

     

Preferred Equity (non-voting)

          434     430  

     

Warrants (71 equivalent units)

          54     40  

     

Member Units (700 units)(8)

          100     350  

                  2,102     2,334  

                           

Marine Shelters Holdings, LLC (LoneStar Marine Shelters)

 

Fabricator of Marine and Industrial Shelters

                       

     

12% PIK Secured Debt (Maturity — December 28, 2017)

    9,053     8,967     8,870  

     

Preferred Member Units (3,810 units)

          5,352     4,881  

                  14,319     13,751  

                           

MH Corbin Holding LLC

 

Manufacturer and distributor of traffic safety products

                       

     

10% Secured Debt (Maturity — August 31, 2020)

    14,000     13,869     13,869  

     

Preferred Member Units (4,000 shares)

          6,000     6,000  

                  19,869     19,869  

                           

Mid-Columbia Lumber Products, LLC

 

Manufacturer of Finger-Jointed Lumber Products

                       

     

10% Secured Debt (Maturity — December 18, 2017)

    1,750     1,750     1,750  

     

12% Secured Debt (Maturity — December 18, 2017)

    3,900     3,900     3,900  

     

Member Units (2,829 units)

          1,244     2,580  

     

9.5% Secured Debt (Mid — Columbia Real Estate, LLC) (Maturity — May 13, 2025)

    881     881     881  

     

Member Units (Mid — Columbia Real Estate, LLC) (250 units)(8)

          250     550  

                  8,025     9,661  

                           

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MAIN STREET CAPITAL CORPORATION

Consolidated Schedule of Investments — (Continued)

December 31, 2015
(dollars in thousands)

Portfolio Company(1)
  Business Description
  Type of Investment(2)(3)
  Principal(4)
  Cost(4)
  Fair Value
 
   

MSC Adviser I, LLC(16)

 

Third Party Investment Advisory Services

                       

     

Member Units (Fully diluted 100.0%)(8)

              27,272  

                           

Mystic Logistics Holdings, LLC

 

Logistics and Distribution Services Provider for Large Volume Mailers

                       

     

12% Secured Debt (Maturity — August 15, 2019)

    9,448     9,282     9,448  

     

Common Stock (5,873 shares)(8)

          2,720     5,970  

                  12,002     15,418  

                           

NAPCO Precast, LLC

 

Precast Concrete Manufacturing

                       

     

Prime Plus 2.00% (Floor 7.00%), Current Coupon 9.00%, Secured Debt (Maturity — January 31, 2016)(9)

    625     625     625  

     

Prime Plus 2.00% (Floor 7.00%), Current Coupon 9.00%, Secured Debt (Maturity — February 1, 2016)(9)

    3,380     3,379     3,380  

     

18% Secured Debt (Maturity — February 1, 2016)

    4,924     4,923     4,924  

     

Member Units (2,955 units)(8)

          2,975     8,590  

                  11,902     17,519  

                           

NRI Clinical Research, LLC

 

Clinical Research Service Provider

                       

     

14% Secured Debt (Maturity — September 8, 2017)

    4,617     4,539     4,539  

     

Warrants (251,723 equivalent units)

          252     340  

     

Member Units (1,454,167 units)

          765     1,342  

                  5,556     6,221  

                           

NRP Jones, LLC

 

Manufacturer of Hoses, Fittings and Assemblies

                       

     

12% Secured Debt (Maturity — December 22, 2016)

    13,224     12,948     12,948  

     

Warrants (14,331 equivalent units)

          817     450  

     

Member Units (50,877 units)

          2,900     1,480  

                  16,665     14,878  

                           

OMi Holdings, Inc.

 

Manufacturer of Overhead Cranes

                       

     

Common Stock (1,500 shares)

          1,080     13,640  

                           

Pegasus Research Group, LLC (Televerde)

 

Provider of Telemarketing and Data Services

                       

     

Member Units (460 units)(8)

          1,290     6,840  

                           

PPL RVs, Inc.

 

Recreational Vehicle Dealer

                       

     

11.1% Secured Debt (Maturity — July 1, 2016)

    9,710     9,710     9,710  

     

Common Stock (1,962 shares)

          2,150     9,770  

                  11,860     19,480  

                           

117


Table of Contents


MAIN STREET CAPITAL CORPORATION

Consolidated Schedule of Investments — (Continued)

December 31, 2015
(dollars in thousands)

Portfolio Company(1)
  Business Description
  Type of Investment(2)(3)
  Principal(4)
  Cost(4)
  Fair Value
 
   

Principle Environmental, LLC

 

Noise Abatement Service Provider

                       

     

12% Secured Debt (Maturity — April 30, 2017)

    4,060     4,039     4,060  

     

12% Current / 2% PIK Secured Debt (Maturity — April 30, 2017)

    3,310     3,309     3,310  

     

Preferred Member Units (19,631 units)(8)

          4,663     6,060  

     

Warrants (1,036 equivalent units)

          1,200     310  

                  13,211     13,740  

                           

Quality Lease Service, LLC

 

Provider of Rigsite Accommodation Unit Rentals and Related Services

                       

     

8% PIK Secured Debt (Maturity — June 8, 2020)

    6,538     6,538     6,538  

     

Member Units (1,000 units)

          568     2,638  

                  7,106     9,176  

                           

River Aggregates, LLC

 

Processor of Construction Aggregates

                       

     

Zero Coupon Secured Debt (Maturity — June 30, 2018)

    750     556     556  

     

Member Units (1,150 units)(8)

          1,150     3,830  

     

Member Units (RA Properties, LLC) (1,500 units)

          369     2,360  

                  2,075     6,746  

                           

SoftTouch Medical Holdings LLC

 

Home Provider of Pediatric Durable Medical Equipment

                       

     

LIBOR Plus 9.00% (Floor 1.00%), Current Coupon 10.00%, Secured Debt (Maturity — October 31, 2019)(9)

    8,075     8,010     8,010  

     

Member Units (4,450 units)(8)

          4,930     5,710  

                  12,940     13,720  

                           

Southern RV, LLC

 

Recreational Vehicle
Dealer

                       

     

13% Secured Debt (Maturity — August 8, 2018)

    11,400     11,296     11,400  

     

Member Units (1,680 units)(8)

          1,680     15,100  

     

13% Secured Debt (Southern RV Real Estate, LLC) (Maturity — August 8, 2018)

    3,250     3,220     3,250  

     

Member Units (Southern RV Real Estate, LLC) (480 units)

          480     1,200  

                  16,676     30,950  

                           

The MPI Group, LLC

 

Manufacturer of Custom Hollow Metal Doors, Frames and Accessories

                       

     

9% Secured Debt (Maturity — October 2, 2018)

    2,924     2,921     2,921  

     

Series A Preferred Units (2,500 units; 10% Cumulative)

          2,500     690  

     

Warrants (1,424 equivalent units)

          1,096      

     

Member Units (MPI Real Estate Holdings, LLC) (100% Fully diluted)(8)

          2,300     2,230  

                  8,817     5,841  

                           

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Table of Contents


MAIN STREET CAPITAL CORPORATION

Consolidated Schedule of Investments — (Continued)

December 31, 2015
(dollars in thousands)

Portfolio Company(1)
  Business Description
  Type of Investment(2)(3)
  Principal(4)
  Cost(4)
  Fair Value
 
   

Travis Acquisition LLC

 

Manufacturer of Aluminum Trailers

                       

     

12% Secured Debt (Maturity — August 30, 2018)

    3,513     3,471     3,513  

     

Member Units (7,282 units)

          7,100     14,480  

                  10,571     17,993  

                           

Uvalco Supply, LLC

 

Farm and Ranch Supply Store

                       

     

9% Secured Debt (Maturity — January 1, 2019)

    1,314     1,314     1,314  

     

Member Units (2,011 units)(8)

          3,843     5,460  

                  5,157     6,774  

                           

Vision Interests, Inc.

 

Manufacturer / Installer of Commercial Signage

                       

     

13% Secured Debt (Maturity — December 23, 2016)

    3,071     3,052     3,052  

     

Series A Preferred Stock (3,000,000 shares)

          3,000     3,550  

     

Common Stock (1,126,242 shares)

          3,706     210  

                  9,758     6,812  

                           

Ziegler's NYPD, LLC

 

Casual Restaurant Group

                       

     

6.5% Secured Debt (Maturity — October 1, 2019)

    1,000     992     992  

     

12% Secured Debt (Maturity — October 1, 2019)

    500     500     500  

     

14% Secured Debt (Maturity — October 1, 2019)

    2,750     2,750     2,750  

     

Warrants (587 equivalent units)

          600     50  

     

Preferred Member Units (10,072 units)

          2,834     3,400  

                  7,676     7,692  

Subtotal Control Investments (30.8% of total investments at fair value)

  $ 387,727   $ 555,011  

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MAIN STREET CAPITAL CORPORATION

Consolidated Schedule of Investments — (Continued)

December 31, 2015
(dollars in thousands)

Portfolio Company(1)
  Business Description
  Type of Investment(2)(3)
  Principal(4)
  Cost(4)
  Fair Value
 
   

Affiliate Investments(6)

 

 

 

 

                   

                           

AFG Capital Group, LLC

 

Provider of Rent-to-Own Financing Solutions and Services

                       

     

11% Secured Debt (Maturity — November 7, 2019)

  $ 12,960   $ 12,611   $ 12,790  

     

Warrants (42 equivalent units)

          259     490  

     

Member Units (186 units)

          1,200     2,020  

                  14,070     15,300  

                           

Boss Industries, LLC

 

Manufacturer and Distributor of Air, Power and Other Industrial Equipment

                       

     

Preferred Member Units (2,242 units)(8)

          2,246     2,586  

                           

Bridge Capital Solutions Corporation

 

Financial Services and Cash Flow Solutions Provider

                       

     

13% Secured Debt (Maturity — April 18, 2017)

    7,000     6,890     6,890  

     

Warrants (22 equivalent shares)

          200     1,300  

                  7,090     8,190  

                           

Buca C, LLC

 

Casual Restaurant Group

                       

     

LIBOR Plus 7.25% (Floor 1.00%), Current Coupon 8.25%, Secured Debt (Maturity — June 30, 2020)(9)

    25,530     25,299     25,299  

     

Preferred Member Units (6 units; 6% cumulative)(8)

          3,711     3,711  

                  29,010     29,010  

                           

CAI Software LLC

 

Provider of Specialized Enterprise Resource Planning Software

                       

     

12% Secured Debt (Maturity — October 10, 2019)

    4,661     4,624     4,661  

     

Member Units (65,356 units)

          654     1,000  

                  5,278     5,661  

                           

Condit Exhibits, LLC

 

Tradeshow Exhibits / Custom Displays Provider

                       

     

Member Units (3,936 units)(8)

          100     1,010  

                           

Congruent Credit Opportunities Funds(12)(13)

 

Investment Partnership

                       

     

LP Interests (Congruent Credit Opportunities Fund II, LP) (Fully diluted 19.8%)(8)

          6,612     2,834  

     

LP Interests (Congruent Credit Opportunities Fund III, LP) (Fully diluted 17.4%)(8)

          12,020     12,024  

                  18,632     14,858  

                           

Daseke, Inc.

 

Specialty Transportation Provider

                       

     

12% Current / 2.5% PIK Secured Debt (Maturity — July 31, 2018)

    21,253     21,003     21,253  

     

Common Stock (19,467 shares)

          5,213     22,660  

                  26,216     43,913  

                           

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Table of Contents


MAIN STREET CAPITAL CORPORATION

Consolidated Schedule of Investments — (Continued)

December 31, 2015
(dollars in thousands)

Portfolio Company(1)
  Business Description
  Type of Investment(2)(3)
  Principal(4)
  Cost(4)
  Fair Value
 
   

Dos Rios Partners(12)(13)

 

Investment Partnership

                       

     

LP Interests (Dos Rios Partners, LP) (Fully diluted 20.2%)

          3,104     2,031  

     

LP Interests (Dos Rios Partners — A, LP) (Fully diluted 6.4%)

          986     648  

                  4,090     2,679  

                           

East Teak Fine Hardwoods, Inc.

 

Distributor of Hardwood Products

                       

     

Common Stock (6,250 shares)(8)

          480     860  

                           

East West Copolymer & Rubber, LLC

 

Manufacturer of Synthetic Rubbers

                       

     

12% Secured Debt (Maturity — October 17, 2019)

    9,600     9,463     9,463  

     

Warrants (2,510,790 equivalent units)

          50     50  

                  9,513     9,513  

                           

EIG Traverse Co-Investment, L.P.(12)(13)

 

Investment Partnership

                       

     

LP Interests (Fully diluted 6.6%)(8)

          4,755     4,755  

                           

Freeport Financial Funds(12)(13)

 

Investment Partnership

                       

     

LP Interests (Freeport Financial SBIC Fund LP) (Fully diluted 9.9%)(8)

          5,974     6,045  

     

LP Interests (Freeport First Lien Loan Fund III LP) (Fully diluted 6.4%)

          2,077     2,077  

                  8,051     8,122  

                           

Gault Financial, LLC (RMB Capital, LLC)

 

Purchases and Manages Liquidation of Distressed Assets

                       

     

10% Secured Debt (Maturity — November 21, 2016)

    13,046     12,896     10,930  

     

Warrants (29,025 equivalent units)

          400      

                  13,296     10,930  

                           

Glowpoint, Inc.

 

Provider of Cloud Managed Video Collaboration Services

                       

     

8% Secured Debt (Maturity — October 18, 2018)

    400     397     397  

     

12% Secured Debt (Maturity — October 18, 2018)

    9,000     8,929     8,929  

     

Common Stock (7,711,517 shares)

          3,958     3,840  

                  13,284     13,166  

                           

Guerdon Modular Holdings, Inc.

 

Multi-Family and Commercial Modular Construction Company

                       

     

13% Secured Debt (Maturity — August 13, 2019)

    10,400     10,280     10,280  

     

Common Stock (170,577 shares)

          2,983     1,990  

                  13,263     12,270  

                           

Houston Plating and Coatings, LLC

 

Provider of Plating and Industrial Coating Services

                       

     

Member Units (248,082 units)(8)

          996     8,440  

                           

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MAIN STREET CAPITAL CORPORATION

Consolidated Schedule of Investments — (Continued)

December 31, 2015
(dollars in thousands)

Portfolio Company(1)
  Business Description
  Type of Investment(2)(3)
  Principal(4)
  Cost(4)
  Fair Value
 
   

I-45 SLF LLC(12)(13)

 

Investment Partnership

                       

     

Member units (Fully diluted 20.0%; 24.4% profits interest)

          7,200     7,200  

                           

Indianhead Pipeline Services, LLC

 

Provider of Pipeline Support Services

                       

     

12% Secured Debt (Maturity — February 6, 2017)

    6,000     5,853     5,853  

     

Preferred Member Units (33,819 units; 8% cumulative)

          2,302     2,302  

     

Warrants (31,928 equivalent units)

          459      

     

Member Units (14,732 units)

          1      

                  8,615     8,155  

                           

KBK Industries, LLC

 

Manufacturer of Specialty Oilfield and Industrial Products

                       

     

12.5% Secured Debt (Maturity — September 28, 2017)

    5,900     5,875     5,900  

     

Member Units (250 units)(8)

          341     3,680  

                  6,216     9,580  

                           

L.F. Manufacturing Holdings, LLC(10)

 

Manufacturer of Fiberglass Products

                       

     

Member Units (2,179,001 units)(8)

          2,019     1,485  

                           

MPS Denver, LLC

 

Specialty Card Printing

                       

     

Member Units (13,800 units)

          1,130     1,130  

                           

OnAsset Intelligence, Inc.

 

Provider of Transportation Monitoring / Tracking Products and Services

                       

     

12% PIK Secured Debt (Maturity — December 31, 2015)(17)

    4,006     4,006     4,006  

     

Preferred Stock (912 shares; 7% cumulative)(8)

          1,981     1,380  

     

Warrants (5,333 equivalent shares)

          1,919      

                  7,906     5,386  

                           

OPI International Ltd.(13)

 

Provider of Man Camp and Industrial Storage Services

                       

     

10% Unsecured Debt (Maturity — April 8, 2018)

    473     473     473  

     

Common Stock (20,766,317 shares)

          1,371     3,200  

                  1,844     3,673  

                           

PCI Holding Company, Inc.

 

Manufacturer of Industrial Gas Generating Systems

                       

     

Preferred Stock (1,500,000 shares; 20% cumulative)(8)

          2,762     4,887  

                           

Radial Drilling Services Inc.

 

Oil and Gas Lateral Drilling Technology Provider

                       

     

12% Secured Debt (Maturity — November 22, 2016)(14)

    4,200     3,941     1,500  

     

Warrants (316 equivalent shares)

          758      

                  4,699     1,500  

                           

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MAIN STREET CAPITAL CORPORATION

Consolidated Schedule of Investments — (Continued)

December 31, 2015
(dollars in thousands)

Portfolio Company(1)
  Business Description
  Type of Investment(2)(3)
  Principal(4)
  Cost(4)
  Fair Value
 
   

Rocaceia, LLC (Quality Lease and Rental Holdings, LLC)

 

Provider of Rigsite Accommodation Unit Rentals and Related Services

                       

     

12% Secured Debt (Maturity — January 8, 2018)(14)(18)

    30,785     30,281     250  

     

Preferred Member Units (250 units)

          2,500      

                  32,781     250  

                           

Samba Holdings, Inc.

 

Provider of Intelligent Driver Record Monitoring Software and Services

                       

     

12.5% Secured Debt (Maturity — November 17, 2016)

    24,662     24,553     24,662  

     

Common Stock (170,963 shares)

          2,087     30,220  

                  26,640     54,882  

                           

Tin Roof Acquisition Company

 

Casual Restaurant Group

                       

     

12% Secured Debt (Maturity — November 13, 2018)

    13,994     13,807     13,807  

     

Class C Preferred Stock (Fully diluted 10.0%; 10% cumulative)(8)

          2,477     2,477  

                  16,284     16,284  

                           

UniTek Global Services, Inc.(11)

 

Provider of Outsourced Infrastructure Services

                       

     

LIBOR Plus 7.50% (Floor 1.00%), Current Coupon 8.50%, Secured Debt (Maturity — January 13, 2019)(9)

    2,826     2,826     2,812  

     

LIBOR Plus 8.50% (Floor 1.00%), Current Coupon 9.50% / 1.00% PIK, Current Coupon Plus PIK 10.50%, Secured Debt (Maturity — January 13, 2019)(9)

    1,261     1,261     1,255  

     

15% PIK Unsecured Debt (Maturity — July 13, 2019)

    641     641     638  

     

Preferred Stock (4,935,377 shares)

          4,935     5,540  

     

Common Stock (705,054 shares)

               

                  9,663     10,245  

                           

Universal Wellhead Services Holdings, LLC(10)

 

Provider of Wellhead Equipment, Designs, and Personnel to the Oil & Gas Industry

                       

     

Class A Preferred Units (4,000,000 units; 4.5% cumulative)(8)

          4,000     3,000  

                           

Volusion, LLC

 

Provider of Online Software-as-a-Service eCommerce Solutions

                       

     

10.5% Secured Debt (Maturity — January 26, 2020)

    17,500     16,199     16,199  

     

Preferred Member Units (4,876,670 units)

          14,000     14,000  

     

Warrants (950,618 equivalent units)

          1,400     1,400  

                  31,599     31,599  

Subtotal Affiliate Investments (19.4% of total investments at fair value)

  $ 333,728   $ 350,519  

123


Table of Contents


MAIN STREET CAPITAL CORPORATION

Consolidated Schedule of Investments — (Continued)

December 31, 2015
(dollars in thousands)

Portfolio Company(1)
  Business Description
  Type of Investment(2)(3)
  Principal(4)
  Cost(4)
  Fair Value
 
   

Non-Control/Non-Affiliate Investments(7)

 

 

                   

                           

AccuMED, Corp.(10)

 

Medical Device Contract Manufacturer

                       

     

LIBOR Plus 6.50% (Floor 1.00%), Current Coupon 7.50%, Secured Debt (Maturity — October 29, 2020)(9)

  $ 9,750   $ 9,648   $ 9,648  

                           

Adams Publishing Group, LLC(10)

 

Local Newspaper Operator

                       

     

LIBOR Plus 6.75% (Floor 1.00%), Current Coupon 7.75%, Secured Debt (Maturity — November 3, 2020)(9)

    9,506     9,329     9,328  

                           

Ahead, LLC(10)

 

IT Infrastructure Value Added Reseller

                       

     

LIBOR Plus 6.50%, Current Coupon 6.76%, Secured Debt (Maturity — November 2, 2020)

    15,000     14,562     14,625  

Allflex Holdings III Inc.(11)

 

Manufacturer of Livestock Identification Products

                       

     

LIBOR Plus 7.00% (Floor 1.00%), Current Coupon 8.00%, Secured Debt (Maturity — July 19, 2021)(9)

    10,150     10,080     10,008  

                           

AM General LLC(11)

 

Specialty Vehicle Manufacturer

                       

     

LIBOR Plus 9.00% (Floor 1.25%), Current Coupon 10.25%, Secured Debt (Maturity — March 22, 2018)(9)

    2,256     2,221     1,867  

                           

AM3 Pinnacle Corporation(10)

 

Provider of Comprehensive Internet, TV and Voice Services for Multi-Dwelling Unit Properties

                       

     

Common Stock (60,240 shares)

          2,000      

                           

American Seafoods Group, LLC(11)

 

Catcher-Processor of Alaskan Pollock

                       

     

LIBOR Plus 5.00% (Floor 1.00%), Current Coupon 6.00%, Secured Debt (Maturity — August 19, 2021)(9)

    9,975     9,963     9,892  

                           

AMF Bowling Centers, Inc.(11)

 

Bowling Alley Operator

                       

     

LIBOR Plus 6.25% (Floor 1.00%), Current Coupon 7.25%, Secured Debt (Maturity — September 18, 2021)(9)

    7,907     7,802     7,835  

                           

Anchor Hocking, LLC(11)

 

Household Products Manufacturer

                       

     

LIBOR Plus 9.00% (Floor 1.00%), Current Coupon 10.00%, Secured Debt (Maturity — June 4, 2018)(9)

    2,306     2,306     2,179  

     

Member Units (440,620 units)

          4,928     3,250  

                  7,234     5,429  

                           

124


Table of Contents


MAIN STREET CAPITAL CORPORATION

Consolidated Schedule of Investments — (Continued)

December 31, 2015
(dollars in thousands)

Portfolio Company(1)
  Business Description
  Type of Investment(2)(3)
  Principal(4)
  Cost(4)
  Fair Value
 
   

AP Gaming I, LLC(10)

 

Developer, Manufacturer, and Operator of Gaming Machines

                       

     

LIBOR Plus 8.25% (Floor 1.00%), Current Coupon 9.25%, Secured Debt (Maturity — December 20, 2020)(9)

    11,314     11,108     10,946  

                           

Apex Linen Service, Inc.

 

Industrial Launderers

                       

     

LIBOR Plus 6.00% (Floor 1.00%), Current Coupon 7.00%, Secured Debt (Maturity — October 30, 2022)(9)

    1,600     1,600     1,600  

     

13% Secured Debt (Maturity — October 30, 2022)

    12,000     11,926     11,926  

                  13,526     13,526  

                           

Applied Products, Inc.(10)

 

Adhesives Distributor

                       

     

LIBOR Plus 6.50% (Floor 1.00%), Current Coupon 7.50%, Secured Debt (Maturity — September 30, 2019)(9)

    5,813     5,759     5,683  

                           

Arcus Hunting LLC.(10)

 

Manufacturer of Bowhunting and Archery Products and Accessories

                       

     

LIBOR Plus 7.00% (Floor 1.00%), Current Coupon 8.00%, Secured Debt (Maturity — November 13, 2019)(9)

    9,540     9,429     9,429  

                           

Artel, LLC(11)

 

Provider of Secure Satellite Network and IT Solutions

                       

     

LIBOR Plus 7.00% (Floor 1.25%), Current Coupon 8.25%, Secured Debt (Maturity — November 27, 2017)(9)

    7,854     7,585     6,716  

                           

ATS Workholding, Inc.(10)

 

Manufacturer of Machine Cutting Tools and Accessories

                       

     

LIBOR Plus 7.50% (Floor 1.00%), Current Coupon 8.50%, Secured Debt (Maturity — March 10, 2019)(9)

    6,492     6,452     6,230  

                           

ATX Networks Corp.(11)(13)

 

Provider of Radio Frequency Management Equipment

                       

     

LIBOR Plus 6.00% (Floor 1.00%), Current Coupon 7.00%, Secured Debt (Maturity — June 14, 2021)(9)

    14,925     14,647     14,701  

                           

Barfly Ventures, LLC(10)

 

Casual Restaurant Group

                       

     

12% Secured Debt (Maturity — August 31, 2020)

    4,121     4,042     4,042  

     

Warrant (1 equivalent unit)

          473     473  

                  4,515     4,515  

                           

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Table of Contents


MAIN STREET CAPITAL CORPORATION

Consolidated Schedule of Investments — (Continued)

December 31, 2015
(dollars in thousands)

Portfolio Company(1)
  Business Description
  Type of Investment(2)(3)
  Principal(4)
  Cost(4)
  Fair Value
 
   

Berry Aviation, Inc.(10)

 

Airline Charter Service Operator

                       

     

12.00% Current / 1.75% PIK Secured Debt (Maturity — January 30, 2020)

    5,627     5,578     5,578  

     

Common Stock (553 shares)

          400     400  

                  5,978     5,978  

                           

Bioventus LLC(10)

 

Production of Orthopedic Healing Products

                       

     

LIBOR Plus 10.00% (Floor 1.00%), Current Coupon 11.00%, Secured Debt (Maturity — April 10, 2020)(9)

    5,000     4,917     4,925  

                           

Blackbrush Oil and Gas LP(11)

 

Oil & Gas Exploration

                       

     

LIBOR Plus 6.50% (Floor 1.00%), Current Coupon 7.50%, Secured Debt (Maturity — July 30, 2021)(9)

    4,000     3,975     3,230  

                           

Blackhawk Specialty Tools LLC(11)

 

Oilfield Equipment & Services

                       

     

LIBOR Plus 5.25% (Floor 1.25%), Current Coupon 6.50%, Secured Debt (Maturity — August 1, 2019)(9)

    5,892     5,866     5,450  

                           

Blue Bird Body Company(11)

 

School Bus Manufacturer

                       

     

LIBOR Plus 5.50% (Floor 1.00%), Current Coupon 6.50%, Secured Debt (Maturity — June 26, 2020)(9)

    4,702     4,646     4,669  

                           

Bluestem Brands, Inc.(11)(13)

 

Multi-Channel Retailer of General Merchandise

                       

     

LIBOR Plus 7.50% (Floor 1.00%), Current Coupon 8.50%, Secured Debt (Maturity — November 6, 2020)(9)

    13,632     13,358     12,780  

                           

Brainworks Software, LLC(10)

 

Advertising Sales and Newspaper Circulation Software

                       

     

Prime Plus 7.25% (Floor 3.25%), Current Coupon 10.75%, Secured Debt (Maturity — July 22, 2019)(9)

    626     620     620  

     

LIBOR Plus 8.25% (Floor 1.00%), Current Coupon 9.25%, Secured Debt (Maturity — July 22, 2019)(9)

    6,185     6,126     6,012  

                  6,746     6,632  

                           

Brightwood Capital Fund III, LP(12)(13)

 

Investment Partnership

                       

     

LP Interests (Fully diluted 1.6%)(8)

          11,250     11,125  

                           

Brundage-Bone Concrete Pumping, Inc.(11)

 

Construction Services Provider

                       

     

10.375% Secured Debt (Maturity — September 1, 2021)

    2,500     2,500     2,438  

                           

Calloway Laboratories, Inc.(10)

 

Health Care Testing Facilities

                       

     

17% PIK Secured Debt(Maturity — September 30, 2016)(14)

    7,324     7,275      

     

Warrants (125,000 equivalent shares)

          17      

                  7,292      

                           

126


Table of Contents


MAIN STREET CAPITAL CORPORATION

Consolidated Schedule of Investments — (Continued)

December 31, 2015
(dollars in thousands)

Portfolio Company(1)
  Business Description
  Type of Investment(2)(3)
  Principal(4)
  Cost(4)
  Fair Value
 
   

Cengage Learning Acquisitions, Inc.(11)

 

Provider of Educational Print and Digital Services

                       

     

LIBOR Plus 6.00% (Floor 1.00%), Current Coupon 7.00%, Secured Debt (Maturity — March 31, 2020)(9)

    9,720     9,672     9,502  

                           

Cenveo Corporation(11)

 

Provider of Commercial Printing, Envelopes, Labels, and Printed Office Products

                       

     

6% Secured Debt (Maturity — August 1, 2019)

    5,230     4,544     3,687  

                           

CGSC of Delaware Holdings Corp.(11)(13)

 

Insurance Brokerage Firm

                       

     

LIBOR Plus 7.00% (Floor 1.25%), Current Coupon 8.25%, Secured Debt (Maturity — October 16, 2020)(9)

    2,000     1,979     1,900  

                           

Charlotte Russe, Inc(11)

 

Fast-Fashion Retailer to Young Women

                       

     

LIBOR Plus 5.50% (Floor 1.25%), Current Coupon 6.75%, Secured Debt (Maturity — May 22, 2019)(9)

    14,346     14,065     10,031  

                           

Clarius ASIG, LLC(10)

 

Prints & Advertising Film Financing

                       

     

15% PIK Secured Debt (Maturity — September 14, 2014)(17)

    620     620     620  

                           

Clarius BIGS, LLC(10)

 

Prints & Advertising Film Financing

                       

     

15% PIK Secured Debt (Maturity — January 5, 2015)(14)(17)

    3,386     3,386     563  

                           

Compact Power Equipment, Inc.

 

Equipment / Tool Rental

                       

     

12% Secured Debt (Maturity — October 1, 2017)

    4,100     4,090     4,100  

     

Series A Preferred Stock (4,298,435 shares)

          1,079     2,930  

                  5,169     7,030  

                           

Compuware Corporation(11)

 

Provider of Software and Supporting Services

                       

     

LIBOR Plus 5.25% (Floor 1.00%), Current Coupon 6.25%, Secured Debt (Maturity — December 15, 2019)(9)

    14,751     14,395     13,998  

                           

Covenant Surgical Partners, Inc.(11)

 

Ambulatory Surgical Centers

                       

     

8.75% Secured Debt (Maturity — August 1, 2019)

    800     800     780  

                           

CRGT Inc.(11)

 

Provider of Custom Software Development

                       

     

LIBOR Plus 6.50% (Floor 1.00%), Current Coupon 7.50%, Secured Debt (Maturity — December 19, 2020)(9)

    10,168     10,009     10,118  

                           

127


Table of Contents


MAIN STREET CAPITAL CORPORATION

Consolidated Schedule of Investments — (Continued)

December 31, 2015
(dollars in thousands)

Portfolio Company(1)
  Business Description
  Type of Investment(2)(3)
  Principal(4)
  Cost(4)
  Fair Value
 
   

CST Industries Inc.(11)

 

Storage Tank Manufacturer

                       

     

LIBOR Plus 6.25% (Floor 1.50%), Current Coupon 7.75%, Secured Debt (Maturity — May 22, 2017)(9)

    8,227     8,197     8,145  

                           

Darr Equipment LP(10)

 

Heavy Equipment Dealer

                       

     

11.75% Current / 2% PIK Secured Debt (Maturity — April 15, 2020)

    20,706     20,178     19,688  

     

Warrants (915,734 equivalent units)

          474     410  

                  20,652     20,098  

                           

Digital River, Inc.(11)

 

Provider of Outsourced e-Commerce Solutions and Services

                       

     

LIBOR Plus 6.50% (Floor 1.00%), Current Coupon 7.50%, Secured Debt (Maturity — February 12, 2021)(9)

    8,667     8,588     8,580  

                           

Digity Media LLC(11)

 

Radio Station Operator

                       

     

LIBOR Plus 4.75% (Floor 1.25%), Current Coupon 6.00%, Secured Debt (Maturity — February 8, 2019)(9)

    6,588     6,539     6,506  

                           

Drilling Info Holdings, Inc.

 

Information Services for the Oil and Gas Industry

                       

     

Common Stock (3,788,865 shares)

          1,335     9,920  

                           

ECP-PF Holdings Group, Inc.(10)

 

Fitness Club Operator

                       

     

LIBOR Plus 9.00% (Floor 1.00%), Current Coupon 10.00%, Secured Debt (Maturity — November 26, 2019)(9)

    5,625     5,579     5,492  

                           

EIG Fund Investments(12)(13)

 

Investment Partnership

                       

     

LP Interests (EIG Global Private Debt fund-A, L.P.) (Fully diluted 0.5%)

          718     718  

                           

EnCap Energy Fund Investments(12)(13)

 

Investment Partnership

                       

     

LP Interests (EnCap Energy Capital Fund VIII, L.P.) (Fully diluted 0.1%)(8)

          3,762     2,765  

     

LP Interests (EnCap Energy Capital Fund VIII Co- Investors, L.P.) (Fully diluted 0.4%)

          2,194     1,056  

     

LP Interests (EnCap Energy Capital Fund IX, L.P.) (Fully diluted 0.1%)(8)

          3,075     3,826  

     

LP Interests (Encap Energy Capital Fund X, L.P.) (Fully diluted 0.1%)

          692     692  

     

LP Interests (EnCap Flatrock Midstream Fund II, L.P.) (Fully diluted 0.8%)(8)

          7,350     10,738  

     

LP Interests (EnCap Flatrock Midstream Fund III, L.P.) (Fully diluted 0.2%)

          464     892  

                  17,537     19,969  

                           

128


Table of Contents


MAIN STREET CAPITAL CORPORATION

Consolidated Schedule of Investments — (Continued)

December 31, 2015
(dollars in thousands)

Portfolio Company(1)
  Business Description
  Type of Investment(2)(3)
  Principal(4)
  Cost(4)
  Fair Value
 
   

Energy and Exploration Partners, LLC(11)

 

Oil & Gas Exploration & Production

                       

     

8.75% Secured Debt (Maturity — January 23, 2016)(14)

    221     221     221  

     

LIBOR Plus 6.75% (Floor 1.00%), Current Coupon 7.75%, Secured Debt (Maturity — January 22, 2019)(9)(14)

    9,390     9,048     2,371  

                  9,269     2,592  

                           

Evergreen Skills Lux S.á r.l. (d/b/a Skillsoft)(11)(13)

 

Technology-based Performance Support Solutions

                       

     

LIBOR Plus 8.25% (Floor 1.00%), Current Coupon 9.25%, Secured Debt (Maturity — April 28, 2022)(9)

    7,000     6,838     4,673  

                           

Extreme Reach, Inc.(11)

 

Integrated TV and Video Advertising Platform

                       

     

LIBOR Plus 5.75% (Floor 1.00%), Current Coupon 6.75%, Secured Debt (Maturity — February 7, 2020)(9)

    8,875     8,866     8,731  

                           

Flavors Holdings Inc.(11)

 

Global Provider of Flavoring and Sweetening Products and Solutions

                       

     

LIBOR Plus 5.75% (Floor 1.00%), Current Coupon 6.75%, Secured Debt (Maturity — April 3, 2020)(9)

    11,333     11,004     10,086  

                           

Fram Group Holdings, Inc.(11)

 

Manufacturer of Automotive Maintenance Products

                       

     

LIBOR Plus 5.50% (Floor 1.50%), Current Coupon 7.00%, Secured Debt (Maturity — July 29, 2017)(9)

    9,652     9,547     7,275  

     

LIBOR Plus 9.50% (Floor 1.50%), Current Coupon 11.00%, Secured Debt (Maturity — January 29, 2018)(9)

    700     699     350  

                  10,246     7,625  

                           

GI KBS Merger Sub LLC(11)

 

Outsourced Janitorial Services to Retail/Grocery Customers

                       

     

LIBOR Plus 5.00% (Floor 1.00%), Current Coupon 6.00%, Secured Debt (Maturity — October 29, 2021)(9)

    3,960     3,901     3,742  

     

LIBOR Plus 8.50% (Floor 1.00%), Current Coupon 9.50%, Secured Debt (Maturity — April 29, 2022)(9)

    800     786     792  

                  4,687     4,534  

                           

Grace Hill, LLC(10)

 

Online Training Tools for the Multi-Family Housing Industry

                       

     

LIBOR Plus 6.25% (Floor 1.00%), Current Coupon 7.25%, Secured Debt (Maturity — August 15, 2019)(9)

    9,450     9,361     9,450  

                           

129


Table of Contents


MAIN STREET CAPITAL CORPORATION

Consolidated Schedule of Investments — (Continued)

December 31, 2015
(dollars in thousands)

Portfolio Company(1)
  Business Description
  Type of Investment(2)(3)
  Principal(4)
  Cost(4)
  Fair Value
 
   

Great Circle Family Foods, LLC(10)

 

Quick Service Restaurant Franchise

                       

     

LIBOR Plus 6.00% (Floor 1.00%), Current Coupon 7.00%, Secured Debt (Maturity — October 28, 2019)(9)

    7,849     7,783     7,783  

                           

Grupo Hima San Pablo, Inc.(11)

 

Tertiary Care Hospitals

                       

     

LIBOR Plus 7.00% (Floor 1.50%), Current Coupon 8.50%, Secured Debt (Maturity — January 31, 2018)(9)

    4,863     4,816     4,668  

     

13.75% Secured Debt (Maturity — July 31, 2018)

    2,000     1,942     1,860  

                  6,758     6,528  

                           

GST Autoleather, Inc.(11)

 

Automotive Leather Manufacturer

                       

     

LIBOR Plus 5.50% (Floor 1.00%), Current Coupon 6.50%, Secured Debt (Maturity — July 10, 2020)(9)

    9,875     9,797     9,529  

                           

Guitar Center, Inc.(11)

 

Musical Instruments Retailer

                       

     

6.5% Secured Debt (Maturity — April 15, 2019)

    11,000     10,442     9,240  

                           

Halcon Resources Corporation(11)

 

Oil & Gas Exploration & Production

                       

     

9.75% Unsecured Debt (Maturity — July 15, 2020)

    6,925     6,382     2,008  

                           

Hojeij Branded Foods, LLC(10)

 

Multi-Airport, Multi-Concept Restaurant Operator

                       

     

LIBOR Plus 6.50% (Floor 1.00%), Current Coupon 7.50%, Secured Debt (Maturity — July 27, 2021)(9)

    5,344     5,294     5,294  

                           

Horizon Global Corporation(11)

 

Auto Parts Manufacturer

                       

     

LIBOR Plus 6.00% (Floor 1.00%), Current Coupon 7.00%, Secured Debt (Maturity — June 30, 2021)(9)

    9,750     9,568     9,677  

                           

Hostway Corporation(11)

 

Managed Services and Hosting Provider

                       

     

LIBOR Plus 4.75% (Floor 1.25%), Current Coupon 6.00%, Secured Debt (Maturity — December 13, 2019)(9)

    11,179     11,105     11,067  

                           

Hunter Defense Technologies, Inc.(11)

 

Provider of Military and Commercial Shelters and Systems

                       

     

LIBOR Plus 5.50% (Floor 1.00%), Current Coupon 6.50%, Secured Debt (Maturity — August 5, 2019)(9)

    6,414     6,366     6,350  

                           

ICON Health & Fitness, Inc.(11)

 

Producer of Fitness Products

                       

     

11.875% Secured Debt (Maturity — October 15, 2016)

    6,956     6,907     6,608  

                           

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MAIN STREET CAPITAL CORPORATION

Consolidated Schedule of Investments — (Continued)

December 31, 2015
(dollars in thousands)

Portfolio Company(1)
  Business Description
  Type of Investment(2)(3)
  Principal(4)
  Cost(4)
  Fair Value
 
   

iEnergizer Limited(11)(13)

 

Provider of Business Outsourcing Solutions

                       

     

LIBOR Plus 6.00% (Floor 1.25%), Current Coupon 7.25%, Secured Debt (Maturity — May 1, 2019)(9)

    8,110     8,030     7,502  

                           

Indivior Finance LLC(11)(13)

 

Specialty Pharmaceutical Company Treating Opioid Dependence

                       

     

LIBOR Plus 6.00% (Floor 1.00%), Current Coupon 7.00%, Secured Debt (Maturity — December 19, 2019)(9)

    7,125     6,759     6,697  

                           

Industrial Container Services, LLC(10)

 

Steel Drum Reconditioner

                       

     

LIBOR Plus 5.75% (Floor 1.00%), Current Coupon 6.75%, Secured Debt (Maturity — December 31, 2018)(9)

    5,000     5,000     5,000  

                           

Infinity Acquisition Finance Corp.(11)

 

Application Software for Capital Markets

                       

     

7.25% Unsecured Debt (Maturity — August 1, 2022)

    4,000     4,000     3,440  

                           

Inn of the Mountain Gods Resort and Casino(11)

 

Hotel & Casino Owner & Operator

                       

     

9.25% Secured Debt (Maturity — November 30, 2020)

    3,851     3,708     3,562  

                           

Insurance Technologies, LLC(10)

 

Illustration and Sales-automation Platforms

                       

     

LIBOR Plus 7.00% (Floor 1.00%), Current Coupon 8.00%, Secured Debt (Maturity — December 1, 2019)(9)

    4,804     4,759     4,759  

                           

Intertain Group Limited(11)(13)

 

Business-to-Consumer Online Gaming Operator

                       

     

LIBOR Plus 6.50% (Floor 1.00%), Current Coupon 7.50%, Secured Debt (Maturity — April 8, 2022)(9)

    9,938     9,782     9,883  

                           

iPayment, Inc.(11)

 

Provider of Merchant Acquisition

                       

     

LIBOR Plus 5.25% (Floor 1.50%), Current Coupon 6.75%, Secured Debt (Maturity — May 8, 2017)(9)

    15,026     14,986     14,446  

                           

iQor US Inc.(11)

 

Business Process Outsourcing Services Provider

                       

     

LIBOR Plus 5.00% (Floor 1.00%), Current Coupon 6.00%, Secured Debt (Maturity — April 1, 2021)(9)

    9,887     9,718     7,942  

                           

irth Solutions, LLC

 

Provider of Damage Prevention Information Technology Services

                       

     

Member Units (27,893 units)

          1,441     1,441  

                           

131


Table of Contents


MAIN STREET CAPITAL CORPORATION

Consolidated Schedule of Investments — (Continued)

December 31, 2015
(dollars in thousands)

Portfolio Company(1)
  Business Description
  Type of Investment(2)(3)
  Principal(4)
  Cost(4)
  Fair Value
 
   

Jackmont Hospitality, Inc.(10)

 

Franchisee of Casual Dining Restaurants

                       

     

LIBOR Plus 4.25% (Floor 1.00%), Current Coupon 5.25% / 2.50% PIK, Current Coupon Plus PIK 7.75%, Secured Debt (Maturity — May 26, 2021)(9)

    4,357     4,337     4,188  

                           

Joerns Healthcare, LLC(11)

 

Manufacturer and Distributor of Health Care Equipment & Supplies

                       

     

LIBOR Plus 5.00% (Floor 1.00%), Current Coupon 6.00%, Secured Debt (Maturity — May 9, 2020)(9)

    14,805     14,711     14,703  

                           

JSS Holdings, Inc.(11)

 

Aircraft Maintenance Program Provider

                       

     

LIBOR Plus 6.50% (Floor 1.00%), Current Coupon 7.50%, Secured Debt (Maturity — August 31, 2021)(9)

    14,566     14,230     13,765  

                           

Kendra Scott, LLC(11)

 

Jewelry Retail Stores

                       

     

LIBOR Plus 6.00% (Floor 1.00%), Current Coupon 7.00%, Secured Debt (Maturity — July 17, 2020)(9)

    5,875     5,821     5,831  

                           

Keypoint Government Solutions, Inc.(11)

 

Provider of Pre-Employment Screening Services

                       

     

LIBOR Plus 6.50% (Floor 1.25%), Current Coupon 7.75%, Secured Debt (Maturity — November 13, 2017)(9)

    6,303     6,268     6,271  

                           

LaMi Products, LLC(10)

 

General Merchandise Distribution

                       

     

LIBOR Plus 6.50% (Floor 1.00%), Current Coupon 7.50%, Secured Debt (Maturity — September 16, 2020)(9)

    4,729     4,699     4,699  

                           

Lansing Trade Group LLC(11)

 

Commodity Merchandiser

                       

     

9.25% Unsecured Debt (Maturity — February 15, 2019)

    6,000     6,000     5,625  

                           

Larchmont Resources, LLC(11)

 

Oil & Gas Exploration & Production

                       

     

LIBOR Plus 8.75% (Floor 1.00%), Current Coupon 9.75%, Secured Debt (Maturity — August 7, 2019)(9)

    7,807     7,508     5,543  

                           

Leadrock Properties, LLC

 

Real Estate Investment

                       

     

10% Secured Debt (Maturity — May 4, 2026)

    1,440     1,416     1,416  

                           

Legendary Pictures Funding, LLC(10)

 

Producer of TV, Film, and Comic Content

                       

     

LIBOR Plus 6.00% (Floor 1.00%), Current Coupon 7.00%, Secured Debt (Maturity — April 22, 2020)(9)

    7,500     7,372     7,425  

                           

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Table of Contents


MAIN STREET CAPITAL CORPORATION

Consolidated Schedule of Investments — (Continued)

December 31, 2015
(dollars in thousands)

Portfolio Company(1)
  Business Description
  Type of Investment(2)(3)
  Principal(4)
  Cost(4)
  Fair Value
 
   

LKCM Headwater Investments I, L.P.(12)(13)

 

Investment Partnership

                       

     

LP Interests (Fully diluted 2.3%)

          2,500     4,875  

                           

Looking Glass Investments, LLC(12)(13)

 

Specialty Consumer Finance

                       

     

9% Unsecured Debt (Maturity — June 30, 2020)

    188     188     188  

     

Member Units (2.5 units)

          125     125  

     

Member Units (LGI Predictive Analytics LLC) (190,712 units)(8)

          188     188  

                  501     501  

                           

MediMedia USA, Inc.(11)

 

Provider of Healthcare Media and Marketing

                       

     

LIBOR Plus 6.75% (Floor 1.25%), Current Coupon 8.00%, Secured Debt (Maturity — November 20, 2018)(9)

    7,772     7,714     7,422  

                           

Messenger, LLC(10)

 

Supplier of Specialty Stationery and Related Products to the Funeral Industry

                       

     

LIBOR Plus 7.25% (Floor 1.00%), Current Coupon 8.25%, Secured Debt (Maturity — September 9, 2020)(9)

    15,583     15,483     15,583  

                           

Milk Specialties Company(11)

 

Processor of Nutrition Products

                       

     

LIBOR Plus 7.00% (Floor 1.25%), Current Coupon 8.25%, Secured Debt (Maturity — November 9, 2018)(9)

    792     789     792  

                           

Minute Key, Inc.

 

Operator of Automated Key Duplication Kiosks

                       

     

10% Current / 2% PIK Secured Debt (Maturity — September 19, 2019)

    14,186     13,817     13,817  

     

Warrants (1,437,409 equivalent units)

          280     280  

                  14,097     14,097  

                           

Miramax Film NY, LLC(11)

 

Motion Picture Producer and Distributor

                       

     

Member Units (500,000 units)(8)

          864     864  

                           

Mood Media Corporation(11)(13)

 

Provider of Electronic Equipment

                       

     

LIBOR Plus 6.00% (Floor 1.00%), Current Coupon 7.00%, Secured Debt (Maturity — May 1, 2019)(9)

    14,957     14,827     14,266  

                           

New Media Holdings II LLC(11)(13)

 

Local Newspaper Operator

                       

     

LIBOR Plus 6.25% (Floor 1.00%), Current Coupon 7.25%, Secured Debt (Maturity — June 4, 2020)(9)

    9,788     9,635     9,703  

                           

North American Lifting Holdings, Inc.(11)

 

Crane Service Provider

                       

     

LIBOR Plus 4.50% (Floor 1.00%), Current Coupon 5.50%, Secured Debt (Maturity — November 27, 2020)(9)

    997     835     733  

                           

133


Table of Contents


MAIN STREET CAPITAL CORPORATION

Consolidated Schedule of Investments — (Continued)

December 31, 2015
(dollars in thousands)

Portfolio Company(1)
  Business Description
  Type of Investment(2)(3)
  Principal(4)
  Cost(4)
  Fair Value
 
   

North Atlantic Trading Company, Inc.(11)

 

Marketer/Distributor of Tobacco Products

                       

     

LIBOR Plus 6.50% (Floor 1.25%), Current Coupon 7.75%, Secured Debt (Maturity — January 13, 2020)(9)

    9,676     9,607     9,603  

                           

Novitex Intermediate, LLC(11)

 

Provider of Document Management Services

                       

     

LIBOR Plus 6.25% (Floor 1.25%), Current Coupon 7.50%, Secured Debt (Maturity — July 7, 2020)(9)

    8,692     8,532     8,192  

                           

Ospemifene Royalty Sub LLC (QuatRx)(10)

 

Estrogen-Deficiency Drug Manufacturer and Distributor

                       

     

11.5% Secured Debt (Maturity — November 15, 2026)

    5,071     5,071     3,780  

                           

Panolam Industries International, Inc.(11)

 

Decorative Laminate Manufacturer

                       

     

LIBOR Plus 6.00% (Floor 1.25%), Current Coupon 7.25%, Secured Debt (Maturity — August 23, 2017)(9)

    9,472     9,429     9,424  

                           

Paris Presents Incorporated(11)

 

Branded Cosmetic and Bath Accessories

                       

     

LIBOR Plus 8.25% (Floor 1.00%), Current Coupon 9.25%, Secured Debt (Maturity — December 31, 2021)(9)

    2,000     1,965     1,960  

                           

Parq Holdings Limited Partnership(11)(13)

 

Hotel & Casino Operator

                       

     

LIBOR Plus 7.50% (Floor 1.00%), Current Coupon 8.50%, Secured Debt (Maturity — December 17, 2020)(9)

    7,500     7,369     7,200  

                           

Permian Holdings, Inc.(11)

 

Storage Tank Manufacturer

                       

     

10.5% Secured Debt (Maturity — January 15, 2018)

    2,755     2,738     1,047  

                           

Pernix Therapeutics Holdings, Inc.(10)

 

Pharmaceutical Royalty

                       

     

12% Secured Debt (Maturity — August 1, 2020)

    3,818     3,818     3,777  

                           

Pike Corporation(11)

 

Construction and Maintenance Services for Electric Transmission and Distribution Infrastructure

                       

     

LIBOR Plus 8.50% (Floor 1.00%), Current Coupon 9.50%, Secured Debt (Maturity — June 22, 2022)(9)

    15,000     14,663     14,712  

                           

134


Table of Contents


MAIN STREET CAPITAL CORPORATION

Consolidated Schedule of Investments — (Continued)

December 31, 2015
(dollars in thousands)

Portfolio Company(1)
  Business Description
  Type of Investment(2)(3)
  Principal(4)
  Cost(4)
  Fair Value
 
   

Point.360(10)

 

Fully Integrated Provider of Digital Media Services

                       

     

Warrants (65,463 equivalent shares)

          69     9  

     

Common Stock (163,658 shares)

          273     144  

                  342     153  

                           

Prowler Acquisition Corp.(11)

 

Specialty Distributor to the Energy Sector

                       

     

LIBOR Plus 4.50% (Floor 1.00%), Current Coupon 5.50%, Secured Debt (Maturity — January 28, 2020)(9)

    4,411     3,734     3,749  

                           

PT Network, LLC(10)

 

Provider of Outpatient Physical Therapy and Sports Medicine Services

                       

     

LIBOR Plus 7.75% (Floor 1.50%), Current Coupon 9.25%, Secured Debt (Maturity — November 1, 2018)(9)

    12,047     11,954     11,771  

                           

QBS Parent, Inc.(11)

 

Provider of Software and Services to the Oil & Gas Industry

                       

     

LIBOR Plus 4.75% (Floor 1.00%), Current Coupon 5.75%, Secured Debt (Maturity — August 7, 2021)(9)

    11,389     11,303     11,332  

                           

Raley's(11)

 

Family-owned supermarket chain in California

                       

     

LIBOR Plus 6.25% (Floor 1.00%), Current Coupon 7.25%, Secured Debt (Maturity — May 18, 2022)(9)

    5,094     4,999     5,069  

                           

RCHP, Inc.(11)

 

Regional Non-Urban Hospital Owner/Operator

                       

     

LIBOR Plus 5.00% (Floor 1.00%), Current Coupon 6.00%, Secured Debt (Maturity — April 23, 2019)(9)

    5,448     5,426     5,448  

     

LIBOR Plus 10.25% (Floor 1.00%), Current Coupon 11.25%, Secured Debt (Maturity — October 23, 2019)(9)

    4,000     3,954     3,953  

                  9,380     9,401  

                           

Renaissance Learning, Inc.(11)

 

Technology-based K-12 Learning Solutions

                       

     

LIBOR Plus 7.00% (Floor 1.00%), Current Coupon 8.00%, Secured Debt (Maturity — April 11, 2022)(9)

    3,000     2,975     2,835  

                           

RGL Reservoir Operations Inc.(11)(13)

 

Oil & Gas Equipment and Services

                       

     

LIBOR Plus 5.00% (Floor 1.00%), Current Coupon 6.00%, Secured Debt (Maturity — August 13, 2021)(9)

    3,950     3,851     1,534  

                           

135


Table of Contents


MAIN STREET CAPITAL CORPORATION

Consolidated Schedule of Investments — (Continued)

December 31, 2015
(dollars in thousands)

Portfolio Company(1)
  Business Description
  Type of Investment(2)(3)
  Principal(4)
  Cost(4)
  Fair Value
 
   

RLJ Entertainment, Inc.(10)

 

Movie and TV Programming Licensee and Distributor

                       

     

LIBOR Plus 8.75% (Floor 0.25%), Current Coupon 9.16%, Secured Debt (Maturity — September 11, 2019)(9)

    9,354     9,353     9,203  

                           

RM Bidder, LLC(10)

 

Scripted and Unscripted TV and Digital Programming Provider

                       

     

Warrants (327,532 equivalent units)

          425     363  

     

Member Units (2,779 units)

          46     45  

                  471     408  

                           

SAExploration, Inc.(10)(13)

 

Geophysical Services Provider

                       

     

Common Stock (6,472 shares)

          65     27  

                           

Sage Automotive Interiors, Inc(11)

 

Automotive Textiles Manufacturer

                       

     

LIBOR Plus 8.00% (Floor 1.00%), Current Coupon 9.00%, Secured Debt (Maturity — October 8, 2021)(9)

    3,000     2,974     2,970  

                           

Salient Partners L.P.(11)

 

Provider of Asset Management Services

                       

     

LIBOR Plus 6.50% (Floor 1.00%), Current Coupon 7.50%, Secured Debt (Maturity — June 9, 2021)(9)

    7,388     7,251     7,240  

                           

Sotera Defense Solutions, Inc.(11)

 

Defense Industry Intelligence Services

                       

     

LIBOR Plus 7.50% (Floor 1.50%), Current Coupon 9.00%, Secured Debt (Maturity — April 21, 2017)(9)

    10,119     9,886     9,360  

                           

Stardust Finance Holdings, Inc.(11)

 

Manufacturer of Diversified Building Products

                       

     

LIBOR Plus 5.50% (Floor 1.00%), Current Coupon 6.50%, Secured Debt (Maturity — March 13, 2022)(9)

    12,406     12,239     12,065  

                           

Subsea Global Solutions, LLC(10)

 

Underwater Maintenance and Repair Services

                       

     

LIBOR Plus 6.00% (Floor 1.50%), Current Coupon 7.50%, Secured Debt (Maturity — March 17, 2020)(9)

    4,887     4,836     4,762  

                           

Synagro Infrastructure Company, Inc(11)

 

Waste Management Services

                       

     

LIBOR Plus 5.25% (Floor 1.00%), Current Coupon 6.25%, Secured Debt (Maturity — August 22, 2020)(9)

    4,714     4,647     4,124  

                           

136


Table of Contents


MAIN STREET CAPITAL CORPORATION

Consolidated Schedule of Investments — (Continued)

December 31, 2015
(dollars in thousands)

Portfolio Company(1)
  Business Description
  Type of Investment(2)(3)
  Principal(4)
  Cost(4)
  Fair Value
 
   

Targus Group International(11)

 

Distributor of Protective Cases for Mobile Devices

                       

     

LIBOR Plus 9.50% (Floor 1.50%), Current Coupon 11.00% / 1.00% PIK, Current Coupon Plus PIK 12.00%, Secured Debt (Maturity — May 24, 2016)(9)(14)

    4,258     4,263     3,119  

                           

TeleGuam Holdings, LLC(11)

 

Cable and Telecom Services Provider

                       

     

LIBOR Plus 4.00% (Floor 1.25%), Current Coupon 5.25%, Secured Debt (Maturity — December 10, 2018)(9)

    7,975     7,961     7,935  

     

LIBOR Plus 7.50% (Floor 1.25%), Current Coupon 8.75%, Secured Debt (Maturity — June 10, 2019)(9)

    2,500     2,484     2,487  

                  10,445     10,422  

                           

Templar Energy LLC(11)

 

Oil & Gas Exploration & Production

                       

     

LIBOR Plus 7.50% (Floor 1.00%), Current Coupon 8.50%, Secured Debt (Maturity — November 25, 2020)(9)

    4,000     3,962     485  

                           

The Tennis Channel, Inc.(10)

 

Television-Based Sports Broadcasting

                       

     

Warrants (114,316 equivalent shares)

          235     301  

                           

The Topps Company, Inc.(11)

 

Trading Cards & Confectionary

                       

     

LIBOR Plus 6.00% (Floor 1.25%), Current Coupon 7.25%, Secured Debt (Maturity — October 2, 2018)(9)

    1,960     1,948     1,923  

                           

TOMS Shoes, LLC(11)

 

Global Designer, Distributor, and Retailer of Casual Footwear

                       

     

LIBOR Plus 5.50% (Floor 1.00%), Current Coupon 6.50%, Secured Debt (Maturity — October 30, 2020)(9)

    4,963     4,545     3,387  

                           

Travel Leaders Group, LLC(11)

 

Travel Agency Network Provider

                       

     

LIBOR Plus 6.00% (Floor 1.00%), Current Coupon 7.00%, Secured Debt (Maturity — December 7, 2020)(9)

    8,700     8,638     8,613  

                           

US Joiner Holding Company(11)

 

Marine Interior Design and Installation

                       

     

LIBOR Plus 6.00% (Floor 1.00%), Current Coupon 7.00%, Secured Debt (Maturity — April 16, 2020)(9)

    7,369     7,341     7,295  

                           

Valley Healthcare Group, LLC

 

Provider of Durable Medical Equipment

                       

     

LIBOR Plus 12.50% (Floor 0.50%), Current Coupon 13.00%, Secured Debt (Maturity — December 29, 2020)(9)

    10,400     10,297     10,297  

                           

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MAIN STREET CAPITAL CORPORATION

Consolidated Schedule of Investments — (Continued)

December 31, 2015
(dollars in thousands)

Portfolio Company(1)
  Business Description
  Type of Investment(2)(3)
  Principal(4)
  Cost(4)
  Fair Value
 
   

Vantage Oncology, LLC(11)

 

Outpatient Radiation Oncology Treatment Centers

                       

     

9.5% Secured Debt (Maturity — June 15, 2017)

    12,050     11,938     10,182  

                           

Virtex Enterprises, LP(10)

 

Specialty, Full-Service Provider of Complex Electronic Manufacturing Services

                       

     

12% Secured Debt (Maturity — December 27, 2018)

    1,667     1,516     1,516  

     

Preferred Class A Units (14 units; 5% cumulative)(8)

          333     512  

     

Warrants (11 equivalent units)

          186     135  

                  2,035     2,163  

                           

Vision Solutions, Inc.(11)

 

Provider of Information Availability Software

                       

     

LIBOR Plus 8.00% (Floor 1.50%), Current Coupon 9.50%, Secured Debt (Maturity — July 23, 2017)(9)

    5,000     4,987     4,750  

                           

Western Dental Services, Inc.(11)

 

Dental Care Services

                       

     

LIBOR Plus 6.50% (Floor 1.00%), Current Coupon 7.50%, Secured Debt (Maturity — November 1, 2018)(9)

    4,904     4,901     4,303  

                           

Wilton Brands LLC(11)

 

Specialty Housewares Retailer

                       

     

LIBOR Plus 7.25% (Floor 1.25%), Current Coupon 8.50%, Secured Debt (Maturity — August 30, 2018)(9)

    1,540     1,524     1,475  

                           

Worley Claims Services, LLC(10)

 

Insurance Adjustment Management and Services Provider

                       

     

LIBOR Plus 8.00% (Floor 1.00%), Current Coupon 9.00%, Secured Debt (Maturity — October 31, 2020)(9)

    6,435     6,381     6,210  

                           

YP Holdings LLC(11)

 

Online and Offline Advertising Operator

                       

     

LIBOR Plus 6.75% (Floor 1.25%), Current Coupon 8.00%, Secured Debt (Maturity — June 4, 2018)(9)

    2,455     2,435     2,382  

                           

Zilliant Incorporated

 

Price Optimization and Margin Management Solutions

                       

     

Preferred Stock (186,777 shares)

          154     260  

     

Warrants (952,500 equivalent shares)

          1,071     1,190  

                  1,225     1,450  

Subtotal Non-Control/Non-Affiliate Investments (49.6% of total investments at fair value)

  $ 945,187   $ 894,466  

Total Portfolio Investments, December 31, 2015

  $ 1,666,642   $ 1,799,996  

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Consolidated Schedule of Investments — (Continued)

December 31, 2015
(dollars in thousands)

Portfolio Company(1)
  Business Description
  Type of Investment(2)(3)
  Principal(4)
  Cost(4)
  Fair Value
 
   

Marketable Securities and Idle Funds Investments

             

                           

PennantPark Investment Corporation(13)(15)

 

Business Development Company

                       

     

Common Stock (343,149 shares)(8)

        $ 3,629   $ 2,121  

                           

Other Marketable Securities and Idle Funds Investments(13)(15)

 

Investments in Marketable Securities and Diversified, Registered Bond Funds

                       

                  1,778     1,572  

Subtotal Marketable Securities and Idle Funds Investments (0.2% of total investments at fair value)

  $ 5,407   $ 3,693  

Total Investments, December 31, 2015

  $ 1,672,049   $ 1,803,689  

(1)
All investments are Lower Middle Market portfolio investments, unless otherwise noted. See Note B for a description of Lower Middle Market portfolio investments. All of the Company's investments, unless otherwise noted, are encumbered either as security for the Company's Credit Agreement or in support of the SBA-guaranteed debentures issued by the Funds.

(2)
Debt investments are income producing, unless otherwise noted. Equity and warrants are non-income producing, unless otherwise noted.

(3)
See Note C for a summary of geographic location of portfolio companies.

(4)
Principal is net of repayments. Cost is net of repayments and accumulated unearned income.

(5)
Control investments are defined by the Investment Company Act of 1940, as amended ("1940 Act") as investments in which more than 25% of the voting securities are owned or where the ability to nominate greater than 50% of the board representation is maintained.

(6)
Affiliate investments are defined by the 1940 Act as investments in which between 5% and 25% of the voting securities are owned and the investments are not classified as Control investments.

(7)
Non-Control/Non-Affiliate investments are defined by the 1940 Act as investments that are neither Control investments nor Affiliate investments.

(8)
Income producing through dividends or distributions.

(9)
Index based floating interest rate is subject to contractual minimum interest rate. A majority of the variable rate loans in the Company's investment portfolio bear interest at a rate that may be determined by reference to either LIBOR or an alternate Base Rate (commonly based on the Federal Funds Rate or the Prime Rate), which typically resets semi-annually, quarterly, or monthly at the borrower's option. The borrower may also elect to have multiple interest reset periods for each loan. For each such loan, the Company has provided the weighted average annual stated interest rate in effect at December 31, 2015. As noted in this schedule, 59% (based on the par amount of the loans) of the loans contain LIBOR floors which range between 0.25% and 1.50%.

(10)
Private Loan portfolio investment. See Note B for a description of Private Loan portfolio investments.

(11)
Middle Market portfolio investment. See Note B for a description of Middle Market portfolio investments.

(12)
Other Portfolio investment. See Note B for a description of Other Portfolio investments.

(13)
Investment is not a qualifying asset as defined under Section 55(a) of the 1940 Act. Qualifying assets must represent at least 70% of total assets at the time of acquisition of any additional non-qualifying assets.

(14)
Non-accrual and non-income producing investment.

(15)
Marketable securities and idle fund investments.

(16)
External Investment Manager. Investment is not encumbered as security for the Company's Credit Agreement or in support of the SBA-guaranteed debentures issued by the Funds.

(17)
Maturity date is under on-going negotiations with the portfolio company and other lenders, if applicable.

(18)
Portfolio company is in a bankruptcy process and, as such, the maturity date of our debt investments in this portfolio company will not be finally determined until such process is complete. As noted in footnote (14), our debt investments in this portfolio company are on non-accrual status.

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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

NOTE A — ORGANIZATION AND BASIS OF PRESENTATION

1.    Organization

       Main Street Capital Corporation ("MSCC") is a principal investment firm primarily focused on providing customized debt and equity financing to lower middle market ("LMM") companies and debt capital to middle market ("Middle Market") companies. The portfolio investments of MSCC and its consolidated subsidiaries are typically made to support management buyouts, recapitalizations, growth financings, refinancings and acquisitions of companies that operate in diverse industry sectors. MSCC seeks to partner with entrepreneurs, business owners and management teams and generally provides "one stop" financing alternatives within its LMM portfolio. MSCC and its consolidated subsidiaries invest primarily in secured debt investments, equity investments, warrants and other securities of LMM companies based in the United States and in secured debt investments of Middle Market companies generally headquartered in the United States.

       MSCC was formed in March 2007 to operate as an internally managed business development company ("BDC") under the Investment Company Act of 1940, as amended (the "1940 Act"). MSCC wholly owns several investment funds, including Main Street Mezzanine Fund, LP ("MSMF"), Main Street Capital II, LP ("MSC II") and Main Street Capital III, LP ("MSC III" and, collectively with MSMF and MSC II, the "Funds"), and each of their general partners. The Funds are each licensed as a Small Business Investment Company ("SBIC") by the United States Small Business Administration ("SBA"). Because MSCC is internally managed, all of the executive officers and other employees are employed by MSCC. Therefore, MSCC does not pay any external investment advisory fees, but instead directly incurs the operating costs associated with employing investment and portfolio management professionals.

       MSC Adviser I, LLC (the "External Investment Manager") was formed in November 2013 as a wholly owned subsidiary of MSCC to provide investment management and other services to parties other than MSCC and its subsidiaries or their portfolio companies ("External Parties") and receive fee income for such services. MSCC has been granted no-action relief by the Securities and Exchange Commission ("SEC") to allow the External Investment Manager to register as a registered investment adviser under Investment Advisers Act of 1940, as amended. Since the External Investment Manager conducts all of its investment management activities for External Parties, it is accounted for as a portfolio investment of MSCC and is not included as a consolidated subsidiary of MSCC in MSCC's consolidated financial statements.

       MSCC has elected to be treated for U.S. federal income tax purposes as a regulated investment company ("RIC") under Subchapter M of the Internal Revenue Code of 1986, as amended (the "Code"). As a result, MSCC generally will not pay corporate-level U.S. federal income taxes on any net ordinary taxable income or capital gains that it distributes to its stockholders.

       MSCC has certain direct and indirect wholly owned subsidiaries that have elected to be taxable entities (the "Taxable Subsidiaries"). The primary purpose of the Taxable Subsidiaries is to permit MSCC to hold equity investments in portfolio companies which are "pass-through" entities for tax purposes. The External Investment Manager is also a direct wholly owned subsidiary that has elected to be a taxable entity. The Taxable Subsidiaries and the External Investment Manager are each taxed at their normal corporate tax rates based on their taxable income.

       Unless otherwise noted or the context otherwise indicates, the terms "we," "us," "our," the "Company" and "Main Street" refer to MSCC and its consolidated subsidiaries, which include the Funds and the Taxable Subsidiaries.

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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — (Continued)

2.    Basis of Presentation

       Main Street's consolidated financial statements are prepared in accordance with generally accepted accounting principles in the United States of America ("U.S. GAAP"). For each of the periods presented herein, Main Street's consolidated financial statements include the accounts of MSCC and its consolidated subsidiaries. The Investment Portfolio, as used herein, refers to all of Main Street's investments in LMM portfolio companies, investments in Middle Market portfolio companies, Private Loan portfolio investments, Other Portfolio investments, and the investment in the External Investment Manager, but excludes all "Marketable securities and idle funds investments" (see Note C — Fair Value Hierarchy for Investments and Debentures — Portfolio Composition — Investment Portfolio Composition for additional discussion of Main Street's Investment Portfolio and definitions for the terms Private Loan and Other Portfolio). "Marketable securities and idle funds investments" are classified as financial instruments and are reported separately on Main Street's consolidated balance sheets and consolidated schedules of investments due to the nature of such investments (see Note B.11.). Main Street's results of operations and cash flows for the years ended December 31, 2016, 2015 and 2014 and financial position as of December 31, 2016 and 2015, are presented on a consolidated basis. The effects of all intercompany transactions between Main Street and its consolidated subsidiaries have been eliminated in consolidation.

       Under regulations pursuant to Article 6 of Regulation S-X applicable to BDCs and Accounting Standards Codification ("ASC") 946, Financial Services — Investment Companies ("ASC 946"), Main Street is precluded from consolidating other entities in which Main Street has equity investments, including those in which it has a controlling interest, unless the other entity is another investment company. An exception to this general principle in ASC 946 occurs if Main Street holds a controlling interest in an operating company that provides all or substantially all of its services directly to Main Street or to its portfolio companies. Accordingly, as noted above, MSCC's consolidated financial statements include the financial position and operating results for the Funds and the Taxable Subsidiaries. Main Street has determined that all of its portfolio investments do not qualify for this exception, including the investment in the External Investment Manager. Therefore, Main Street's Investment Portfolio is carried on the consolidated balance sheet at fair value, as discussed further in Note B, with any adjustments to fair value recognized as "Net Change in Unrealized Appreciation (Depreciation)" on the consolidated statements of operations until the investment is realized, usually upon exit, resulting in any gain or loss being recognized as a "Net Realized Gain (Loss)."

       Main Street classifies its Investment Portfolio in accordance with the requirements of the 1940 Act. Under the 1940 Act, (a) "Control Investments" are defined as investments in which Main Street owns more than 25% of the voting securities or has rights to maintain greater than 50% of the board representation, (b) "Affiliate Investments" are defined as investments in which Main Street owns between 5% and 25% of the voting securities and does not have rights to maintain greater than 50% of the board representation, and (c) "Non-Control/Non-Affiliate Investments" are defined as investments that are neither Control Investments nor Affiliate Investments.

NOTE B — SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES

1.    Valuation of the Investment Portfolio

       Main Street accounts for its Investment Portfolio at fair value. As a result, Main Street follows the provisions of the Financial Accounting Standards Board ("FASB") ASC 820, Fair Value Measurements and Disclosures ("ASC 820"). ASC 820 defines fair value, establishes a framework for measuring fair value, establishes a fair value hierarchy based on the quality of inputs used to measure fair value and enhances disclosure requirements for fair value measurements. ASC 820 requires Main Street to assume that the

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portfolio investment is to be sold in the principal market to independent market participants, which may be a hypothetical market. Market participants are defined as buyers and sellers in the principal market that are independent, knowledgeable and willing and able to transact.

       Main Street's portfolio strategy calls for it to invest primarily in illiquid debt and equity securities issued by private, LMM companies and more liquid debt securities issued by Middle Market companies that are generally larger in size than the LMM companies. Main Street categorizes some of its investments in LMM companies and Middle Market companies as Private Loan portfolio investments, which are primarily debt securities in privately held companies which have been originated through strategic relationships with other investment funds on a collaborative basis, and are often referred to in the debt markets as "club deals." Private Loan investments are typically similar in size, structure, terms and conditions to investments Main Street holds in its LMM portfolio and Middle Market portfolio. Main Street's portfolio also includes Other Portfolio investments which primarily consist of investments that are not consistent with the typical profiles for its LMM portfolio investments, Middle Market portfolio investments or Private Loan portfolio investments, including investments which may be managed by third parties. Main Street's portfolio investments may be subject to restrictions on resale.

       LMM investments and Other Portfolio investments generally have no established trading market while Middle Market securities generally have established markets that are not active. Private Loan investments may include investments which have no established trading market or have established markets that are not active. Main Street determines in good faith the fair value of its Investment Portfolio pursuant to a valuation policy in accordance with ASC 820 and a valuation process approved by its Board of Directors and in accordance with the 1940 Act. Main Street's valuation policies and processes are intended to provide a consistent basis for determining the fair value of Main Street's Investment Portfolio.

       For LMM portfolio investments, Main Street generally reviews external events, including private mergers, sales and acquisitions involving comparable companies, and includes these events in the valuation process by using an enterprise value waterfall methodology ("Waterfall") for its LMM equity investments and an income approach using a yield-to-maturity model ("Yield-to-Maturity") for its LMM debt investments. For Middle Market portfolio investments, Main Street primarily uses quoted prices in the valuation process. Main Street determines the appropriateness of the use of third-party broker quotes, if any, in determining fair value based on its understanding of the level of actual transactions used by the broker to develop the quote and whether the quote was an indicative price or binding offer, the depth and consistency of broker quotes and the correlation of changes in broker quotes with underlying performance of the portfolio company and other market indices. For Middle Market and Private Loan portfolio investments in debt securities for which it has determined that third-party quotes or other independent pricing are not available or appropriate, Main Street generally estimates the fair value based on the assumptions that it believes hypothetical market participants would use to value the investment in a current hypothetical sale using the Yield-to-Maturity valuation method. For its Other Portfolio equity investments, Main Street generally calculates the fair value of the investment primarily based on the net asset value ("NAV") of the fund and adjusts the fair value for other factors that would affect the fair value of the investment. All of the valuation approaches for Main Street's portfolio investments estimate the value of the investment as if Main Street were to sell, or exit, the investment as of the measurement date.

       These valuation approaches consider the value associated with Main Street's ability to control the capital structure of the portfolio company, as well as the timing of a potential exit. For valuation purposes, "control" portfolio investments are composed of debt and equity securities in companies for which Main Street has a controlling interest in the equity ownership of the portfolio company or the ability to nominate a majority of the portfolio company's board of directors. For valuation purposes, "non-control" portfolio investments are generally composed of debt and equity securities in companies for which Main Street does not have a

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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — (Continued)

controlling interest in the equity ownership of the portfolio company or the ability to nominate a majority of the portfolio company's board of directors.

       Under the Waterfall valuation method, Main Street estimates the enterprise value of a portfolio company using a combination of market and income approaches or other appropriate valuation methods, such as considering recent transactions in the equity securities of the portfolio company or third-party valuations of the portfolio company, and then performs a waterfall calculation by allocating the enterprise value over the portfolio company's securities in order of their preference relative to one another. The enterprise value is the fair value at which an enterprise could be sold in a transaction between two willing parties, other than through a forced or liquidation sale. Typically, private companies are bought and sold based on multiples of earnings before interest, taxes, depreciation and amortization ("EBITDA"), cash flows, net income, revenues, or in limited cases, book value. There is no single methodology for estimating enterprise value. For any one portfolio company, enterprise value is generally described as a range of values from which a single estimate of enterprise value is derived. In estimating the enterprise value of a portfolio company, Main Street analyzes various factors including the portfolio company's historical and projected financial results. Due to SEC deadlines for Main Street's quarterly and annual financial reporting, the operating results of a portfolio company used in the current period valuation are generally the results from the period ended three months prior to such valuation date and may include unaudited, projected, budgeted or pro forma financial information and may require adjustments for non-recurring items or to normalize the operating results that may require significant judgment in its determination. In addition, projecting future financial results requires significant judgment regarding future growth assumptions. In evaluating the operating results, Main Street also analyzes the impact of exposure to litigation, loss of customers or other contingencies. After determining the appropriate enterprise value, Main Street allocates the enterprise value to investments in order of the legal priority of the various components of the portfolio company's capital structure. In applying the Waterfall valuation method, Main Street assumes the loans are paid off at the principal amount in a change in control transaction and are not assumed by the buyer, which Main Street believes is consistent with its past transaction history and standard industry practices.

       Under the Yield-to-Maturity valuation method, Main Street also uses the income approach to determine the fair value of debt securities based on projections of the discounted future free cash flows that the debt security will likely generate, including analyzing the discounted cash flows of interest and principal amounts for the debt security, as set forth in the associated loan agreements, as well as the financial position and credit risk of the portfolio company. Main Street's estimate of the expected repayment date of its debt securities is generally the maturity date of the instrument, as Main Street generally intends to hold its loans and debt securities to maturity. The Yield-to-Maturity analysis also considers changes in leverage levels, credit quality, portfolio company performance and other factors. Main Street will generally use the value determined by the Yield-to-Maturity analysis as the fair value for that security; however, because of Main Street's general intent to hold its loans to maturity, the fair value will not exceed the principal amount of the debt security valued using the Yield-to-Maturity valuation method. A change in the assumptions that Main Street uses to estimate the fair value of its debt securities using the Yield-to-Maturity valuation method could have a material impact on the determination of fair value. If there is deterioration in credit quality or if a debt security is in workout status, Main Street may consider other factors in determining the fair value of the debt security, including the value attributable to the debt security from the enterprise value of the portfolio company or the proceeds that would most likely be received in a liquidation analysis.

       Under the NAV valuation method, for an investment in an investment fund that does not have a readily determinable fair value, Main Street measures the fair value of the investment predominately based on the NAV of the investment fund as of the measurement date and adjusts the investment's fair value for factors known to Main Street that would affect that fund's NAV, including, but not limited to, fair values for individual investments held by the fund if Main Street holds the same investment or for a publicly traded

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investment. In addition, in determining the fair value of the investment, Main Street considers whether adjustments to the NAV are necessary in certain circumstances, based on the analysis of any restrictions on redemption of Main Street's investment as of the measurement date, recent actual sales or redemptions of interests in the investment fund, and expected future cash flows available to equity holders, including the rate of return on those cash flows compared to an implied market return on equity required by market participants, or other uncertainties surrounding Main Street's ability to realize the full NAV of its interests in the investment fund.

       Pursuant to its internal valuation process and the requirements under the 1940 Act, Main Street performs valuation procedures on each of its portfolio investments quarterly. In addition to its internal valuation process, in arriving at estimates of fair value for its investments in its LMM portfolio companies, Main Street, among other things, consults with a nationally recognized independent financial advisory services firm. The nationally recognized independent financial advisory services firm analyzes and provides observations, recommendations and an assurance certification regarding the Company's determinations of the fair value of its LMM portfolio company investments. The nationally recognized independent financial advisory services firm is generally consulted relative to Main Street's investments in each LMM portfolio company at least once every calendar year, and for Main Street's investments in new LMM portfolio companies, at least once in the twelve-month period subsequent to the initial investment. In certain instances, Main Street may determine that it is not cost-effective, and as a result is not in its stockholders' best interest, to consult with the nationally recognized independent financial advisory services firm on its investments in one or more LMM portfolio companies. Such instances include, but are not limited to, situations where the fair value of Main Street's investment in a LMM portfolio company is determined to be insignificant relative to the total Investment Portfolio. Main Street consulted with and received an assurance certification from its independent financial advisory services firm in arriving at Main Street's determination of fair value on its investments in a total of 62 LMM portfolio companies for the year ended December 31, 2016, representing approximately 93% of the total LMM portfolio at fair value as of December 31, 2016, and on a total of 54 LMM portfolio companies for the year ended December 31, 2015, representing approximately 87% of the total LMM portfolio at fair value as of December 31, 2015. Excluding investments in new LMM portfolio companies which have not been in the Investment Portfolio for at least twelve months subsequent to the initial investment as of December 31, 2016 and 2015, as applicable, and investments in the LMM portfolio companies that were not reviewed because their equity is publicly traded or they hold real estate for which a third-party appraisal is obtained, the percentage of the LMM portfolio reviewed and certified by the independent financial advisory services firm for the years ended December 31, 2016 and 2015 was 98% of the total LMM portfolio at fair value as of both December 31, 2016 and 2015.

       For valuation purposes, all of Main Street's Middle Market portfolio investments are non-control investments. To the extent sufficient observable inputs are available to determine fair value, Main Street uses observable inputs to determine the fair value of these investments through obtaining third-party quotes or other independent pricing. For Middle Market portfolio investments for which it has determined that third-party quotes or other independent pricing are not available or appropriate, Main Street generally estimates the fair value based on the assumptions that it believes hypothetical market participants would use to value such Middle Market debt investments in a current hypothetical sale using the Yield-to-Maturity valuation method and such Middle Market equity investments in a current hypothetical sale using the Waterfall valuation method. Because almost all of the Middle Market portfolio investments are typically valued using third-party quotes or other independent pricing services (including 94% and 99% of the Middle Market portfolio investments as of December 31, 2016 and 2015, respectively), Main Street does not generally consult with any financial advisory services firms in connection with determining the fair value of its Middle Market investments.

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       For valuation purposes, all of Main Street's Private Loan portfolio investments are non-control investments. For Private Loan portfolio investments for which it has determined that third-party quotes or other independent pricing are not available or appropriate, Main Street generally estimates the fair value based on the assumptions that it believes hypothetical market participants would use to value such Private Loan debt investments in a current hypothetical sale using the Yield-to-Maturity valuation method and such Private Loan equity investments in a current hypothetical sale using the Waterfall valuation method.

       In addition to its internal valuation process, in arriving at estimates of fair value for its investments in its Private Loan portfolio companies, Main Street, among other things, consults with a nationally recognized independent financial advisory services firm. The nationally recognized independent financial advisory services firm analyzes and provides observations and recommendations and an assurance certification regarding the Company's determinations of the fair value of its Private Loan portfolio company investments. The nationally recognized independent financial advisory services firm is generally consulted relative to Main Street's investments in each Private Loan portfolio company at least once every calendar year, and for Main Street's investments in new Private Loan portfolio companies, at least once in the twelve-month period subsequent to the initial investment. In certain instances, Main Street may determine that it is not cost-effective, and as a result is not in its stockholders' best interest, to consult with the nationally recognized independent financial advisory services firm on its investments in one or more Private Loan portfolio companies. Such instances include, but are not limited to, situations where the fair value of Main Street's investment in a Private Loan portfolio company is determined to be insignificant relative to the total Investment Portfolio. Main Street consulted with and received an assurance certification from its independent financial advisory services firm in arriving at its determination of fair value on its investments in a total of 26 Private Loan portfolio companies for the year ended December 31, 2016, representing approximately 68% of the total Private Loan portfolio at fair value as of December 31, 2016, and on a total of 16 Private Loan portfolio companies for the year ended December 31, 2015, representing approximately 49% of the total Private Loan portfolio at fair value as of December 31, 2015. Excluding its investments in new Private Loan portfolio companies which have not been in the Investment Portfolio for at least twelve months subsequent to the initial investment decision as of December 31, 2016 and 2015, as applicable, and its investments in the Private Loan portfolio companies that were not reviewed because the investment is publicly traded or quoted by banks, the percentage of the Private Loan portfolio reviewed and certified by its independent financial advisory services firm for the years ended December 31, 2016 and 2015 was 97% and 95% of the total Private Loan portfolio at fair value as of December 31, 2016 and 2015, respectively.

       For valuation purposes, all of Main Street's Other Portfolio investments are non-control investments. Main Street's Other Portfolio investments comprised 5.0% and 4.2%, respectively, of Main Street's Investment Portfolio at fair value as of December 31, 2016 and 2015. Similar to the LMM investment portfolio, market quotations for Other Portfolio equity investments are generally not readily available. For its Other Portfolio equity investments, Main Street generally determines the fair value of its investments using the NAV valuation method. For Other Portfolio debt investments for which it has determined that third-party quotes or other independent pricing are not available or appropriate, Main Street generally estimates the fair value based on the assumptions that it believes hypothetical market participants would use to value such Other Portfolio debt investments in a current hypothetical sale using the Yield-to-Maturity valuation method. For Other Portfolio debt investments for which third-party quotes or other independent pricing are available and appropriate, Main Street determines the fair value of these investments through obtaining third-party quotes or other independent pricing to the extent that these inputs are available and appropriate to determine fair value.

       For valuation purposes, Main Street's investment in the External Investment Manager is a control investment. Market quotations are not readily available for this investment, and as a result, Main Street determines the fair value of the External Investment Manager using the Waterfall valuation method under the market approach. In estimating the enterprise value, Main Street analyzes various factors, including the

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entity's historical and projected financial results, as well as its size, marketability and performance relative to the population of market comparables. This valuation approach estimates the value of the investment as if Main Street were to sell, or exit, the investment. In addition, Main Street considers its ability to control the capital structure of the company, as well as the timing of a potential exit, in connection with determining the fair value of the External Investment Manager.

       Due to the inherent uncertainty in the valuation process, Main Street's determination of fair value for its Investment Portfolio may differ materially from the values that would have been determined had a ready market for the securities existed. In addition, changes in the market environment, portfolio company performance and other events that may occur over the lives of the investments may cause the gains or losses ultimately realized on these investments to be materially different than the valuations currently assigned. Main Street determines the fair value of each individual investment and records changes in fair value as unrealized appreciation or depreciation.

       Main Street uses an internally developed portfolio investment rating system in connection with its investment oversight, portfolio management and analysis and investment valuation procedures for its LMM portfolio companies. This system takes into account both quantitative and qualitative factors of the LMM portfolio company and the investments held therein.

       The Board of Directors of Main Street has the final responsibility for overseeing, reviewing and approving, in good faith, Main Street's determination of the fair value for its Investment Portfolio, as well as its valuation procedures, consistent with 1940 Act requirements. Main Street believes its Investment Portfolio as of December 31, 2016 and 2015 approximates fair value as of those dates based on the markets in which Main Street operates and other conditions in existence on those reporting dates.

2.    Use of Estimates

       The preparation of financial statements in conformity with accounting principles generally accepted in the United States of America requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenue and expenses during the period. Actual results may differ from these estimates under different conditions or assumptions. Additionally, as explained in Note B.1., the consolidated financial statements include investments in the Investment Portfolio whose values have been estimated by Main Street with the oversight, review and approval by Main Street's Board of Directors in the absence of readily ascertainable market values. Because of the inherent uncertainty of the Investment Portfolio valuations, those estimated values may differ materially from the values that would have been determined had a ready market for the securities existed.

3.    Cash and Cash Equivalents

       Cash and cash equivalents consist of cash and highly liquid investments with an original maturity of three months or less at the date of purchase. Cash and cash equivalents are carried at cost, which approximates fair value.

       At December 31, 2016, cash balances totaling $21.3 million exceeded Federal Deposit Insurance Corporation insurance protection levels, subjecting the Company to risk related to the uninsured balance. All of the Company's cash deposits are held at large established high credit quality financial institutions and management believes that the risk of loss associated with any uninsured balances is remote.

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4.    Marketable Securities and Idle Funds Investments

       Marketable securities and idle funds investments include intermediate-term secured debt investments, independently rated debt investments and publicly traded debt and equity investments. See the "Consolidated Schedule of Investments" for more information on Marketable securities and idle funds investments.

5.    Interest, Dividend and Fee Income

       Main Street records interest and dividend income on the accrual basis to the extent amounts are expected to be collected. Dividend income is recorded as dividends are declared by the portfolio company or at the point an obligation exists for the portfolio company to make a distribution. In accordance with Main Street's valuation policies, Main Street evaluates accrued interest and dividend income periodically for collectability. When a loan or debt security becomes 90 days or more past due, and if Main Street otherwise does not expect the debtor to be able to service all of its debt or other obligations, Main Street will generally place the loan or debt security on non-accrual status and cease recognizing interest income on that loan or debt security until the borrower has demonstrated the ability and intent to pay contractual amounts due. If a loan or debt security's status significantly improves regarding the debtor's ability to service the debt or other obligations, or if a loan or debt security is fully impaired, sold or written off, Main Street removes it from non-accrual status.

       Main Street holds certain debt and preferred equity instruments in its Investment Portfolio that contain payment-in-kind ("PIK") interest and cumulative dividend provisions. The PIK interest, computed at the contractual rate specified in each debt agreement, is periodically added to the principal balance of the debt and is recorded as interest income. Thus, the actual collection of this interest may be deferred until the time of debt principal repayment. Cumulative dividends are recorded as dividend income, and any dividends in arrears are added to the balance of the preferred equity investment. The actual collection of these dividends in arrears may be deferred until such time as the preferred equity is redeemed or sold. To maintain RIC tax treatment (as discussed in Note B.9. below), these non-cash sources of income may need to be paid out to stockholders in the form of distributions, even though Main Street may not have collected the PIK interest and cumulative dividends in cash. Main Street stops accruing PIK interest and cumulative dividends and writes off any accrued and uncollected interest and dividends in arrears when it determines that such PIK interest and dividends in arrears are no longer collectible. For the years ended December 31, 2016, 2015 and 2014, (i) approximately 3.6%, 2.2% and 3.3%, respectively, of Main Street's total investment income was attributable to PIK interest income not paid currently in cash and (ii) approximately 1.2%, 1.0% and 1.3%, respectively, of Main Street's total investment income was attributable to cumulative dividend income not paid currently in cash.

       As of December 31, 2016, Main Street's total Investment Portfolio had four investments on non-accrual status, which comprised approximately 0.6% of its fair value and 3.0% of its cost. As of December 31, 2015, Main Street's total Investment Portfolio had six investments on non-accrual status, which comprised approximately 0.4% of its fair value and 3.7% of its cost.

       Main Street may periodically provide services, including structuring and advisory services, to its portfolio companies or other third parties. For services that are separately identifiable and evidence exists to substantiate fair value, fee income is recognized as earned, which is generally when the investment or other applicable transaction closes. Fees received in connection with debt financing transactions for services that do not meet these criteria are treated as debt origination fees and are deferred and accreted into income over the life of the financing.

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       A presentation of the investment income Main Street received from its Investment Portfolio in each of the periods presented is as follows:

 
  Twelve Months Ended December 31,  
 
  2016   2015   2014  
 
  (dollars in thousands)
 

Interest, fee and dividend income:

                   

Interest income

  $ 138,689   $ 131,333   $ 110,362  

Dividend income

    32,182     24,266     22,235  

Fee income

    7,294     8,004     7,342  

Total interest, fee and dividend income

  $ 178,165   $ 163,603   $ 139,939  

6.    Deferred Financing Costs

       Deferred financing costs include SBIC debenture commitment fees and SBIC debenture leverage fees on the SBIC debentures which are not accounted for under the fair value option under ASC 825 (as discussed further in Note B.11.). These fees are approximately 3.4% of the total commitment and draw amounts, as applicable. These deferred financing costs have been capitalized and are being amortized into interest expense over the ten year term of each debenture agreement.

       Deferred financing costs also include commitment fees and other costs related to Main Street's multi-year investment credit facility (the "Credit Facility", as discussed further in Note G) and its notes (as discussed further in Note H). These costs have been capitalized and are amortized into interest expense over the term of the individual instrument.

7.    Unearned Income — Debt Origination Fees and Original Issue Discount and Discounts/Premiums to Par Value

       Main Street capitalizes debt origination fees received in connection with financings and reflects such fees as unearned income netted against the applicable debt investments. The unearned income from the fees is accreted into income based on the effective interest method over the life of the financing.

       In connection with its portfolio debt investments, Main Street sometimes receives nominal cost warrants or warrants with an exercise price below the fair value of the underlying equity (together, "nominal cost equity") that are valued as part of the negotiation process with the particular portfolio company. When Main Street receives nominal cost equity, Main Street allocates its cost basis in its investment between its debt security and its nominal cost equity at the time of origination based on amounts negotiated with the particular portfolio company. The allocated amounts are based upon the fair value of the nominal cost equity, which is then used to determine the allocation of cost to the debt security. Any discount recorded on a debt investment resulting from this allocation is reflected as unearned income, which is netted against the applicable debt investment, and accreted into interest income based on the effective interest method over the life of the debt investment. The actual collection of this interest is deferred until the time of debt principal repayment.

       Main Street may also purchase debt securities at a discount or at a premium to the par value of the debt security. In the case of a purchase at a discount, Main Street records the investment at the par value of the debt security net of the discount, and the discount is accreted into interest income based on the effective interest method over the life of the debt investment. In the case of a purchase at a premium, Main Street records the investment at the par value of the debt security plus the premium, and the premium is amortized as a reduction to interest income based on the effective interest method over the life of the debt investment.

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       To maintain RIC tax treatment (as discussed in Note B.9. below), these non-cash sources of income may need to be paid out to stockholders in the form of distributions, even though Main Street may not have collected the interest income. For the years ended December 31, 2016, 2015 and 2014, approximately 3.1%, 2.6% and 3.1%, respectively, of Main Street's total investment income was attributable to interest income from the accretion of discounts associated with debt investments, net of any premium reduction.

8.    Share-Based Compensation

       Main Street accounts for its share-based compensation plans using the fair value method, as prescribed by ASC 718, Compensation — Stock Compensation. Accordingly, for restricted stock awards, Main Street measures the grant date fair value based upon the market price of its common stock on the date of the grant and amortizes the fair value of the awards as share-based compensation expense over the requisite service period, which is generally the vesting term.

       Effective January 1, 2016, Main Street elected early adoption of Accounting Standards Update ("ASU") 2016-09, Compensation — Stock Compensation: Improvements to Employee Share-Based Payment Accounting ("ASU 2016-09," as discussed further below in Note B.13.). ASU 2016-09 requires that all excess tax benefits and tax deficiencies (including tax benefits of dividends on share-based payment awards) should be recognized as income tax expense or benefit in the income statement and no longer delay recognition of a tax benefit until the tax benefit is realized through a reduction to taxes payable. The tax effects of exercised or vested awards should be treated as discrete items in the reporting period in which they occur. Additionally, ASU 2016-09 allows an entity to make an entity-wide accounting policy election to either estimate the number of awards that are expected to vest, net of forfeitures, (current GAAP) or account for forfeitures when they occur. Amendments related to the timing of when excess tax benefits are recognized, minimum statutory withholding requirements, forfeitures and intrinsic value should be applied using a modified retrospective transition method by means of a cumulative-effect adjustment to equity as of the beginning of the period in which the guidance is adopted. As such, Main Street has recorded a $1.8 million adjustment to "Net Unrealized Appreciation, Net of Income Taxes" on the consolidated balance sheet to capture the cumulative tax effect as of January 1, 2016. The company has elected to account for forfeitures as they occur and this change had no impact on its consolidated financial statements. The additional amendments (cash flows classification, minimum statutory tax withholding requirements and classification of awards as either a liability or equity) did not have an effect on Main Street's consolidated financial statements.

9.    Income Taxes

       MSCC has elected to be treated for U.S. federal income tax purposes as a RIC. MSCC's taxable income includes the taxable income generated by MSCC and certain of its subsidiaries, including the Funds, which are treated as disregarded entities for tax purposes. As a RIC, MSCC generally will not pay corporate-level U.S. federal income taxes on any net ordinary taxable income or capital gains that MSCC distributes to its stockholders. MSCC must generally distribute at least 90% of its "investment company taxable income" (which is generally its net ordinary taxable income and realized net short-term capital gains in excess of realized net long-term capital losses) and 90% of its tax-exempt income to maintain its RIC status (pass-through tax treatment for amounts distributed). As part of maintaining RIC status, undistributed taxable income (subject to a 4% non-deductible U.S. federal excise tax) pertaining to a given fiscal year may be distributed up to 12 months subsequent to the end of that fiscal year, provided such dividends are declared on or prior to the later of (i) the filing of the U.S. federal income tax return for the applicable fiscal year or (ii) the fifteenth day of the ninth month following the close of the year in which such taxable income was generated.

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       The Taxable Subsidiaries primarily hold certain portfolio investments for Main Street. The Taxable Subsidiaries permit Main Street to hold equity investments in portfolio companies which are "pass-through" entities for tax purposes and to continue to comply with the "source-income" requirements contained in the RIC tax provisions of the Code. The Taxable Subsidiaries are consolidated with Main Street for U.S. GAAP financial reporting purposes, and the portfolio investments held by the Taxable Subsidiaries are included in Main Street's consolidated financial statements as portfolio investments and recorded at fair value. The Taxable Subsidiaries are not consolidated with MSCC for income tax purposes and may generate income tax expense, or benefit, and tax assets and liabilities, as a result of their ownership of certain portfolio investments. The taxable income, or loss, of the Taxable Subsidiaries may differ from its book income, or loss, due to temporary book and tax timing differences and permanent differences. This income tax expense, or benefit, if any, and the related tax assets and liabilities, are reflected in Main Street's consolidated financial statements.

       The Taxable Subsidiaries use the liability method in accounting for income taxes. Deferred tax assets and liabilities are recorded for temporary differences between the tax basis of assets and liabilities and their reported amounts in the consolidated financial statements, using statutory tax rates in effect for the year in which the temporary differences are expected to reverse. A valuation allowance is provided, if necessary, against deferred tax assets when it is more likely than not that some portion or all of the deferred tax asset will not be realized.

       Taxable income generally differs from net income for financial reporting purposes due to temporary and permanent differences in the recognition of income and expenses. Taxable income generally excludes net unrealized appreciation or depreciation, as investment gains or losses are not included in taxable income until they are realized.

10.  Net Realized Gains or Losses and Net Change in Unrealized Appreciation or Depreciation

       Realized gains or losses are measured by the difference between the net proceeds from the sale or redemption of an investment or a financial instrument and the cost basis of the investment or financial instrument, without regard to unrealized appreciation or depreciation previously recognized, and includes investments written-off during the period net of recoveries and realized gains or losses from in-kind redemptions. Net change in unrealized appreciation or depreciation reflects the net change in the fair value of the Investment Portfolio and financial instruments and the reclassification of any prior period unrealized appreciation or depreciation on exited investments and financial instruments to realized gains or losses.

11.  Fair Value of Financial Instruments

       Fair value estimates are made at discrete points in time based on relevant information. These estimates may be subjective in nature and involve uncertainties and matters of significant judgment and, therefore, cannot be determined with precision. Main Street believes that the carrying amounts of its financial instruments, consisting of cash and cash equivalents, receivables, payables and other liabilities approximate the fair values of such items due to the short-term nature of these instruments. Marketable securities and idle funds investments may include investments in certificates of deposit, U.S. government agency securities, independently rated debt investments, diversified bond funds and publicly traded debt and equity investments, and the fair value determination for these investments under the provisions of ASC 820 generally consists of Level 1 and 2 observable inputs, similar in nature to those discussed further in Note C.

       As part of Main Street's acquisition of the majority of the equity interests of MSC II in January 2010 (the "MSC II Acquisition"), Main Street elected the fair value option under ASC 825, Financial Instruments ("ASC 825") relating to accounting for debt obligations at their fair value, for the MSC II SBIC debentures acquired as part of the acquisition accounting related to the MSC II Acquisition and values those obligations

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as discussed further in Note C. In order to provide for a more consistent basis of presentation, Main Street has continued to elect the fair value option for SBIC debentures issued by MSC II subsequent to the MSC II Acquisition. When the fair value option is elected for a given SBIC debenture, the deferred loan costs associated with the debenture are fully expensed in the current period to "Net Change in Unrealized Appreciation (Depreciation) — SBIC debentures" as part of the fair value adjustment. Interest incurred in connection with SBIC debentures which are valued at fair value is included in interest expense.

12.  Earnings per Share

       Basic and diluted per share calculations are computed utilizing the weighted-average number of shares of common stock outstanding for the period. In accordance with ASC 260, Earnings Per Share, the unvested shares of restricted stock awarded pursuant to Main Street's equity compensation plans are participating securities and, therefore, are included in the basic earnings per share calculation. As a result, for all periods presented, there is no difference between diluted earnings per share and basic earnings per share amounts.

13.  Recently Issued or Adopted Accounting Standards

       In May 2014, the FASB issued ASU 2014-09, Revenue from Contracts with Customers (Topic 606). ASU 2014-09 supersedes the revenue recognition requirements under ASC 605, Revenue Recognition, and most industry-specific guidance throughout the Industry Topics of the ASC. The core principle of the guidance is that an entity should recognize revenue to depict the transfer of promised goods or services to customers in an amount that reflects the consideration to which an entity expects to be entitled in exchange for those goods or services. Under the new guidance, an entity is required to perform the following five steps: (1) identify the contract(s) with a customer; (2) identify the performance obligations in the contract; (3) determine the transaction price; (4) allocate the transaction price to the performance obligations in the contract, and (5) recognize revenue when (or as) the entity satisfies a performance obligation. The new guidance will significantly enhance comparability of revenue recognition practices across entities, industries, jurisdictions and capital markets. Additionally, the guidance requires improved disclosures as to the nature, amount, timing and uncertainty of revenue that is recognized. In March 2016, the FASB issued ASU 2016-08, Revenue from Contracts with Customers (Topic 606): Principal versus Agent Considerations (Reporting Revenue Gross versus Net), which clarified the implementation guidance on principal versus agent considerations. In April 2016, the FASB issued ASU 2016-10, Revenue from Contracts with Customers (Topic 606): Identifying Performance Obligations and Licensing, which clarified the implementation guidance regarding performance obligations and licensing arrangements. In May 2016, the FASB issued ASU No. 2016-12, Revenue from Contracts with Customers (Topic 606) — Narrow-Scope Improvements and Practical Expedients, which clarified guidance on assessing collectability, presenting sales tax, measuring noncash consideration, and certain transition matters. The new guidance will be effective for the annual reporting period beginning after December 15, 2017, including interim periods within that reporting period. Early adoption would be permitted for annual reporting periods beginning after December 15, 2016. Main Street expects to identify similar performance obligations under ASC 606 as compared with deliverables and separate units of account previously identified. As a result, Main Street expects timing of its revenue recognition to remain the same.

       In May 2015, the FASB issued ASU 2015-07, Fair Value Measurements — Disclosures for Certain Entities that Calculate Net Asset Value per Share. This amendment updates guidance intended to eliminate the diversity in practice surrounding how investments measured at net asset value under the practical expedient with future redemption dates have been categorized in the fair value hierarchy. Under the updated guidance, investments for which fair value is measured at net asset value per share using the practical expedient should no longer be categorized in the fair value hierarchy, while investments for which fair value is measured at net asset value per share but the practical expedient is not applied should continue to be categorized in the fair

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value hierarchy. The updated guidance requires retrospective adoption for all periods presented and is effective for interim and annual reporting periods beginning after December 15, 2015, with early adoption permitted. The Company adopted this standard during the three months ended March 31, 2016. There was no impact of the adoption of this new accounting standard on Main Street's consolidated financial statements as none of its investments are measured through the use of the practical expedient.

       In February 2016, the FASB issued ASU 2016 02, Leases, which requires lessees to recognize on the balance sheet a right of use asset, representing its right to use the underlying asset for the lease term, and a lease liability for all leases with terms greater than 12 months. The guidance also requires qualitative and quantitative disclosures designed to assess the amount, timing, and uncertainty of cash flows arising from leases. The standard requires the use of a modified retrospective transition approach, which includes a number of optional practical expedients that entities may elect to apply. The new guidance is effective for annual periods beginning after December 15, 2018, and interim periods therein. Early application is permitted. While Main Street continues to assess the effect of adoption, Main Street currently believes the most significant change relates to the recognition of a new right-of-use asset and lease liability on its consolidated balance sheet for its office space operating lease. Main Street currently has one operating lease for office space and does not expect a significant change in the leasing activity between now and adoption. See further discussion of the operating lease obligation in Note N.

       In March 2016, the FASB issued ASU 2016-09, which is intended to simplify several aspects of the accounting for share-based payment transactions, including the income tax consequences, classification of awards as either equity or liabilities, and classification on the statement of cash flows. The new guidance is effective for annual periods beginning after December 15, 2016, and interim periods therein. Early application is permitted. The Company elected to early adopt this standard during the three months ended March 31, 2016. See further discussion of the impact of the adoption of this standard in Note B.8.

       In August 2016, the FASB issued ASU 2016-15, Statement of Cash Flows (Topic 230), which is intended to reduce the existing diversity in practice in how certain cash receipts and cash payments are presented and classified in the statement of cash flows. The guidance is effective for annual periods beginning after December 15, 2017, and interim periods therein. Early application is permitted. The impact of the adoption of this new accounting standard on Main Street's consolidated financial statements is not expected to be material.

       From time to time, new accounting pronouncements are issued by the FASB or other standards setting bodies that are adopted by Main Street as of the specified effective date. Main Street believes that the impact of recently issued standards and any that are not yet effective will not have a material impact on its consolidated financial statements upon adoption.

NOTE C — FAIR VALUE HIERARCHY FOR INVESTMENTS AND DEBENTURES — PORTFOLIO COMPOSITION

       ASC 820 defines fair value, establishes a framework for measuring fair value, establishes a fair value hierarchy based on the quality of inputs used to measure fair value, and enhances disclosure requirements for fair value measurements. Main Street accounts for its investments at fair value.

Fair Value Hierarchy

       In accordance with ASC 820, Main Street has categorized its investments based on the priority of the inputs to the valuation technique, into a three-level fair value hierarchy. The fair value hierarchy gives the highest priority to quoted prices in active markets for identical investments (Level 1) and the lowest priority to unobservable inputs (Level 3).

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       Investments recorded on Main Street's balance sheet are categorized based on the inputs to the valuation techniques as follows:

       As required by ASC 820, when the inputs used to measure fair value fall within different levels of the hierarchy, the level within which the fair value measurement is categorized is based on the lowest level input that is significant to the fair value measurement in its entirety. For example, a Level 3 fair value measurement may include inputs that are observable (Levels 1 and 2) and unobservable (Level 3). Therefore, unrealized appreciation and depreciation related to such investments categorized within the Level 3 tables below may include changes in fair value that are attributable to both observable inputs (Levels 1 and 2) and unobservable inputs (Level 3). Main Street conducts reviews of fair value hierarchy classifications on a quarterly basis. During the classification process, Main Street may determine that it is appropriate to transfer investments between fair value hierarchy Levels. These transfers occur when Main Street has concluded that it is appropriate for the classification of an individual asset to be changed due to a change in the factors used to determine the selection of the Level. Any such changes are deemed to be effective during the quarter in which the transfer occurs.

       As of December 31, 2016 and 2015, all of Main Street's LMM portfolio investments except for the equity investment in one portfolio company consisted of illiquid securities issued by private companies. The investment which was the exception was in a company with publicly traded equity. As a result, the fair value determination for the LMM portfolio investments primarily consisted of unobservable inputs. The fair value determination for the publicly traded equity security consisted of observable inputs in non-active markets for which sufficient observable inputs were available to determine the fair value. As a result, all of Main Street's LMM portfolio investments were categorized as Level 3 as of December 31, 2016 and 2015, except for the one publicly traded equity security which was categorized as Level 2.

       As of December 31, 2016 and 2015, Main Street's Middle Market portfolio investments consisted primarily of investments in secured and unsecured debt investments and independently rated debt investments. The fair value determination for these investments consisted of a combination of observable inputs in non-active markets for which sufficient observable inputs were not available to determine the fair value of

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these investments and unobservable inputs. As a result, all of Main Street's Middle Market portfolio investments were categorized as Level 3 as of December 31, 2016 and 2015.

       As of December 31, 2016 and 2015, Main Street's Private Loan portfolio investments primarily consisted of investments in interest-bearing secured debt investments. The fair value determination for these investments consisted of a combination of observable inputs in non-active markets for which sufficient observable inputs were not available to determine the fair value of these investments and unobservable inputs. As a result, all of Main Street's Private Loan portfolio investments were categorized as Level 3 as of December 31, 2016 and 2015.

       As of December 31, 2016 and 2015, Main Street's Other Portfolio investments consisted of illiquid securities issued by private companies. The fair value determination for these investments primarily consisted of unobservable inputs. As a result, all of Main Street's Other Portfolio investments were categorized as Level 3 as of December 31, 2016 and 2015.

       As of December 31, 2015, Main Street's Marketable securities and idle funds investments consisted primarily of investments in publicly traded debt and equity investments. The fair value determination for these investments consisted of a combination of observable inputs in active markets for which sufficient observable inputs were available to determine the fair value of these investments. As a result, all of Main Street's Marketable securities and idle funds investments were categorized as Level 1 as of December 31, 2015. Main Street had no Marketable securities and idle funds investments as of December 31, 2016.

       The fair value determination of each portfolio investment categorized as Level 3 required one or more of the following unobservable inputs:

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       The significant unobservable inputs used in the fair value measurement of Main Street's LMM equity securities, which are generally valued through an average of the discounted cash flow technique and the market comparable/enterprise value technique (unless one of these approaches is determined to not be appropriate), are (i) EBITDA multiples and (ii) the weighted-average cost of capital ("WACC"). Significant increases (decreases) in EBITDA multiple inputs in isolation would result in a significantly higher (lower) fair value measurement. On the contrary, significant increases (decreases) in WACC inputs in isolation would result in a significantly lower (higher) fair value measurement. The significant unobservable inputs used in the fair value measurement of Main Street's LMM, Middle Market, Private Loan and Other Portfolio debt securities are (i) risk adjusted discount rates used in the Yield-to-Maturity valuation technique (described in Note B.1. — Valuation of the Investment Portfolio) and (ii) the percentage of expected principal recovery. Significant increases (decreases) in any of these discount rates in isolation would result in a significantly lower (higher) fair value measurement. Significant increases (decreases) in any of these expected principal recovery percentages in isolation would result in a significantly higher (lower) fair value measurement. However, due to the nature of certain investments, fair value measurements may be based on other criteria, such as third-party appraisals of collateral and fair values as determined by independent third parties, which are not presented in the tables below.

       The following tables provide a summary of the significant unobservable inputs used to fair value Main Street's Level 3 portfolio investments as of December 31, 2016 and 2015:

Type of Investment
  Fair Value as of
December 31,
2016
(in thousands)
  Valuation Technique   Significant
Unobservable Inputs
  Range(3)   Weighted
Average(3)
  Median(3)  

Equity investments

  $ 567,003  

Discounted cash flow

 

Weighted-average cost of capital

  10.4% - 23.1%     13.0 %   13.7 %

       

Market comparable / Enterprise Value

 

EBITDA multiple(1)

  4.5x - 8.5x(2)     7.1x     6.0x  

Debt investments

 
$

808,895
 

Discounted cash flow

 

Risk adjusted discount factor

 

7.4% - 15.9%(2)

   
11.8

%
 
11.6

%

           

Expected principal recovery percentage

  3.0% - 100.0%     99.7 %   100.0 %

Debt investments

 
$

618,928
 

Market approach

 

Third-party quote

 

22.5 - 108.0

             

Total Level 3 investments            

  $ 1,994,826                          

(1)
EBITDA may include proforma adjustments and/or other addbacks based on specific circumstances related to each investment.

(2)
Range excludes outliers that are greater than one standard deviation from the mean. Including these outliers, the range for EBITDA multiple is 3.3x - 17.5x and the range for risk adjusted discount factor is 4.8% - 38.0%.

(3)
Does not include investments for which the valuation technique does not include the use of the applicable fair value input.

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Type of Investment
  Fair Value as of
December 31,
2015
(in thousands)
  Valuation Technique   Significant
Unobservable Inputs
  Range(3)   Weighted
Average(3)
  Median(3)  

Equity investments

  $ 530,612  

Discounted cash flow

 

Weighted-average cost of capital

  10.5% - 25.1%     13.4 %   13.9 %

       

Market comparable / Enterprise Value

 

EBITDA multiple(1)

  4.0x - 8.5x(2)     7.0x     5.5x  

Debt investments

  $ 628,492  

Discounted cash flow

 

Risk adjusted discount factor

  8.1% - 15.3%(2)     11.9 %   11.9 %

           

Expected principal recovery percentage

  16.6% - 100.0%     99.7 %   100.0 %

Debt investments

  $ 637,052  

Market approach

 

Third-party quote

  12.1 - 100.1              

Total Level 3 investments

  $ 1,796,156                          

(1)
EBITDA may include proforma adjustments and/or other addbacks based on specific circumstances related to each investment.

(2)
Range excludes outliers that are greater than one standard deviation from the mean. Including these outliers, the range for EBITDA multiple is 4.0x - 18.8x and the range for risk adjusted discount factor is 6.7% - 29.6%.

(3)
Does not include investments for which the valuation technique does not include the use of the applicable fair value input.

       The following tables provide a summary of changes in fair value of Main Street's Level 3 portfolio investments for the years ended December 31, 2016 and 2015 (amounts in thousands):

Type of
Investment
  Fair Value
as of
December 31,
2015
  Transfers
Into
Level 3
Hierarchy
  Redemptions/
Repayments
  New
Investments
  Net
Changes
from
Unrealized
to Realized
  Net
Unrealized
Appreciation
(Depreciation)
  Other(1)   Fair Value
as of
December 31,
2016
 

Debt

  $ 1,265,544   $   $ (431,871 ) $ 555,490   $ 44,515   $ 1,295   $ (7,150 ) $ 1,427,823  

Equity

    519,966         (15,799 )   86,037     (60,544 )   12,643     7,150     549,453  

Equity Warrant

    10,646         (1,011 )   5,928     1,011     976         17,550  

  $ 1,796,156   $   $ (448,681 ) $ 647,455   $ (15,018 ) $ 14,914   $   $ 1,994,826  

(1)
Includes the impact of non-cash conversions.
Type of
Investment
  Fair Value
as of
December 31,
2014
  Transfers
Into
Level 3
Hierarchy
  Redemptions/
Repayments
  New
Investments
  Net
Changes
from
Unrealized
to Realized
  Net
Unrealized
Appreciation
(Depreciation)
  Other(1)   Fair Value
as of
December 31,
2015
 

Debt

  $ 1,147,281   $   $ (598,076 ) $ 759,778   $ 27,080   $ (59,269 ) $ (11,250 ) $ 1,265,544  

Equity

    391,933         (18,172 )   80,746     (7,958 )   62,994     10,423     519,966  

Equity Warrant

    15,636         (9,723 )   2,153     2,153     2     425     10,646  

  $ 1,554,850   $   $ (625,971 ) $ 842,677   $ 21,275   $ 3,727   $ (402 ) $ 1,796,156  

(1)
Includes the impact of non-cash conversions.

       As of December 31, 2016 and 2015, the fair value determination for the SBIC debentures recorded at fair value primarily consisted of unobservable inputs. As a result, the SBIC debentures which are recorded at fair value were categorized as Level 3. Main Street determines the fair value of these instruments primarily using a Yield-to-Maturity approach that analyzes the discounted cash flows of interest and principal for each SBIC debenture recorded at fair value based on estimated market interest rates for debt instruments of similar structure, terms, and maturity. Main Street's estimate of the expected repayment date of principal for each

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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — (Continued)

SBIC debenture recorded at fair value is the legal maturity date of the instrument. The significant unobservable inputs used in the fair value measurement of Main Street's SBIC debentures recorded at fair value are the estimated market interest rates used to fair value each debenture using the yield valuation technique described above. Significant increases (decreases) in the estimated market interest rates in isolation would result in a significantly lower (higher) fair value measurement.

       The following tables provide a summary of the significant unobservable inputs used to fair value Main Street's Level 3 SBIC debentures as of December 31, 2016 and 2015 (amounts in thousands):

Type of Instrument
  Fair Value
as of
December 31, 2016
  Valuation Technique   Significant
Unobservable Inputs
  Range   Weighted
Average
 

SBIC debentures

  $ 74,803   Discounted cash flow   Estimated market interest rates   3.4% - 5.3%     4.2 %

 

Type of Instrument
  Fair Value
as of
December 31, 2015
  Valuation Technique   Significant
Unobservable Inputs
  Range   Weighted
Average
 

SBIC debentures

  $ 73,860   Discounted cash flow   Estimated market interest rates   4.1% - 5.8%     4.9 %

       The following tables provide a summary of changes for the Level 3 SBIC debentures recorded at fair value for the years ended December 31, 2016 and 2015 (amounts in thousands):

Type of Instrument
  Fair Value
as of
December 31,
2015
  Repayments   New SBIC
Debentures
  Net
Unrealized
(Appreciation)
Depreciation
  Fair Value
as of
December 31,
2016
 

SBIC debentures at fair value

  $ 73,860   $   $   $ 943   $ 74,803  

 

Type of Instrument
  Fair Value
as of
December 31,
2014
  Repayments   New SBIC
Debentures
  Net
Unrealized
(Appreciation)
Depreciation
  Fair Value
as of
December 31,
2015
 

SBIC debentures at fair value

  $ 72,981   $   $   $ 879   $ 73,860  

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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — (Continued)

       At December 31, 2016 and 2015, Main Street's investments and SBIC debentures at fair value were categorized as follows in the fair value hierarchy for ASC 820 purposes:

 
   
  Fair Value Measurements  
 
   
  (in thousands)
 
At December 31, 2016
  Fair Value   Quoted Prices in
Active Markets for
Identical Assets
(Level 1)
  Significant Other
Observable Inputs
(Level 2)
  Significant
Unobservable
Inputs
(Level 3)
 

LMM portfolio investments

  $ 892,592   $   $ 2,080   $ 890,512  

Middle Market portfolio investments

    630,578             630,578  

Private Loan portfolio investments

    342,867             342,867  

Other Portfolio investments

    100,252             100,252  

External Investment Manager

    30,617             30,617  

Total portfolio investments

    1,996,906         2,080     1,994,826  

Marketable securities and idle funds investments

   
   
   
   
 

Total investments

  $ 1,996,906   $   $ 2,080   $ 1,994,826  

SBIC debentures at fair value

  $ 74,803   $   $   $ 74,803  

 

 
   
  Fair Value Measurements  
 
   
  (in thousands)
 
At December 31, 2015
  Fair Value   Quoted Prices in
Active Markets for
Identical Assets
(Level 1)
  Significant Other
Observable Inputs
(Level 2)
  Significant
Unobservable
Inputs
(Level 3)
 

LMM portfolio investments

  $ 862,710   $   $ 3,840   $ 858,870  

Middle Market portfolio investments

    586,900             586,900  

Private Loan portfolio investments

    248,313             248,313  

Other Portfolio investments

    74,801             74,801  

External Investment Manager

    27,272             27,272  

Total portfolio investments

    1,799,996         3,840     1,796,156  

Marketable securities and idle funds investments

    3,693     3,693          

Total investments

  $ 1,803,689   $ 3,693   $ 3,840   $ 1,796,156  

SBIC debentures at fair value

  $ 73,860   $   $   $ 73,860  

Investment Portfolio Composition

       Main Street's LMM portfolio investments primarily consist of secured debt, equity warrants and direct equity investments in privately held, LMM companies based in the United States. Main Street's LMM portfolio companies generally have annual revenues between $10 million and $150 million, and its LMM investments generally range in size from $5 million to $50 million. The LMM debt investments are typically secured by either a first or second priority lien on the assets of the portfolio company, generally bear interest at fixed rates, and generally have a term of between five and seven years from the original investment date. In most LMM portfolio investments, Main Street receives nominally priced equity warrants and/or makes direct equity investments in connection with a debt investment.

       Main Street's Middle Market portfolio investments primarily consist of direct investments in or secondary purchases of interest-bearing debt securities in privately held companies based in the United States that are generally larger in size than the companies included in Main Street's LMM portfolio. Main Street's Middle

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Market portfolio companies generally have annual revenues between $150 million and $1.5 billion, and its Middle Market investments generally range in size from $3 million to $15 million. Main Street's Middle Market portfolio debt investments are generally secured by either a first or second priority lien on the assets of the portfolio company and typically have a term of between three and seven years from the original investment date.

       Main Street's private loan ("Private Loan") portfolio investments are primarily debt securities in privately held companies which have been originated through strategic relationships with other investment funds on a collaborative basis, and are often referred to in the debt markets as "club deals." Private Loan investments are typically similar in size, structure, terms and conditions to investments Main Street holds in its LMM portfolio and Middle Market portfolio. Main Street's Private Loan portfolio debt investments are generally secured by either a first or second priority lien on the assets of the portfolio company and typically have a term of between three and seven years from the original investment date.

       Main Street's other portfolio ("Other Portfolio") investments primarily consist of investments which are not consistent with the typical profiles for LMM, Middle Market and Private Loan portfolio investments, including investments which may be managed by third parties. In the Other Portfolio, Main Street may incur indirect fees and expenses in connection with investments managed by third parties, such as investments in other investment companies or private funds. For Other Portfolio investments, Main Street generally receives distributions related to the assets held by the portfolio company. Those assets are typically expected to be liquidated over a five to ten year period.

       Main Street's external asset management business is conducted through its External Investment Manager. The External Investment Manager earns management fees based on the assets of the funds under management and may earn incentive fees, or a carried interest, based on the performance of the funds managed. Main Street entered into an agreement with the External Investment Manager to share employees in connection with its asset management business generally, and specifically for its relationship with HMS Income Fund, Inc. ("HMS Income"). Through this agreement, Main Street shares employees with the External Investment Manager, including their related infrastructure, business relationships, management expertise and capital raising capabilities. In the first quarter of 2014, Main Street began allocating cost to the External Investment Manager pursuant to the sharing agreement. Main Street's total expenses for the years ended December 31, 2016, 2015 and 2014 are net of expenses allocated to the External Investment Manager of $5.1 million, $4.3 million and $2.0 million, respectively.

       Investment income, consisting of interest, dividends and fees, can fluctuate dramatically due to various factors, including the level of new investment activity, repayments of debt investments or sales of equity interests. Investment income in any given year could also be highly concentrated among several portfolio companies. For the years ended December 31, 2016, 2015 and 2014, Main Street did not record investment income from any single portfolio company in excess of 10% of total investment income.

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MAIN STREET CAPITAL CORPORATION

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — (Continued)

       The following tables provide a summary of Main Street's investments in the LMM, Middle Market and Private Loan portfolios as of December 31, 2016 and 2015 (this information excludes the Other Portfolio investments and the External Investment Manager which are discussed further below):

 
  As of December 31, 2016  
 
  LMM(a)   Middle
Market
  Private
Loan
 
 
  (dollars in millions)
 

Number of portfolio companies

    73     78     46  

Fair value

  $ 892.6   $ 630.6   $ 342.9  

Cost

  $ 760.3   $ 646.8   $ 357.7  

% of portfolio at cost — debt

    69.1 %   97.2 %   93.5 %

% of portfolio at cost — equity

    30.9 %   2.8 %   6.5 %

% of debt investments at cost secured by first priority lien

    92.1 %   89.1 %   89.0 %

Weighted-average annual effective yield(b)

    12.5 %   8.5 %   9.6 %

Average EBITDA(c)

  $ 5.9   $ 98.6   $ 22.7  

(a)
At December 31, 2016, Main Street had equity ownership in approximately 99% of its LMM portfolio companies, and the average fully diluted equity ownership in those portfolio companies was approximately 36%.

(b)
The weighted-average annual effective yields were computed using the effective interest rates for all debt investments at cost as of December 31, 2016, including amortization of deferred debt origination fees and accretion of original issue discount but excluding fees payable upon repayment of the debt instruments and any debt investments on non-accrual status. Weighted-average annual effective yield is higher than what an investor in shares of Main Street's common stock will realize on its investment because it does not reflect Main Street's expenses or any sales load paid by an investor.

(c)
The average EBITDA is calculated using a simple average for the LMM portfolio and a weighted-average for the Middle Market and Private Loan portfolios. These calculations exclude certain portfolio companies, including five LMM portfolio companies, one Middle Market portfolio company and three Private Loan portfolio companies, as EBITDA is not a meaningful valuation metric for Main Street's investments in these portfolio companies.
 
  As of December 31, 2015  
 
  LMM(a)   Middle
Market
  Private
Loan
 
 
  (dollars in millions)
 

Number of portfolio companies

    71     86     40  

Fair value

  $ 862.7   $ 586.9   $ 248.3  

Cost

  $ 685.6   $ 637.2   $ 268.6  

% of portfolio at cost — debt

    70.4 %   98.3 %   94.3 %

% of portfolio at cost — equity

    29.6 %   1.7 %   5.7 %

% of debt investments at cost secured by first priority lien

    91.8 %   86.6 %   87.3 %

Weighted-average annual effective yield(b)

    12.2 %   8.0 %   9.5 %

Average EBITDA(c)

  $ 6.0   $ 98.8   $ 13.1  

(a)
At December 31, 2015, Main Street had equity ownership in approximately 96% of its LMM portfolio companies, and the average fully diluted equity ownership in those portfolio companies was approximately 36%.

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(b)
The weighted-average annual effective yields were computed using the effective interest rates for all debt investments at cost as of December 31, 2015, including amortization of deferred debt origination fees and accretion of original issue discount but excluding fees payable upon repayment of the debt instruments and any debt investments on non-accrual status. Weighted-average annual effective yield is higher than what an investor in shares of Main Street's common stock will realize on its investment because it does not reflect Main Street's expenses or any sales load paid by an investor.

(c)
The average EBITDA is calculated using a simple average for the LMM portfolio and a weighted-average for the Middle Market and Private Loan portfolios. These calculations exclude certain portfolio companies, including five LMM portfolio companies, three Middle Market portfolio companies and six Private Loan portfolio companies, as EBITDA is not a meaningful valuation metric for Main Street's investments in these portfolio companies, and those portfolio companies whose primary purpose is to own real estate.

       As of December 31, 2016, Main Street had Other Portfolio investments in ten companies, collectively totaling approximately $100.3 million in fair value and approximately $107.1 million in cost basis and which comprised approximately 5.0% of Main Street's Investment Portfolio at fair value. As of December 31, 2015, Main Street had Other Portfolio investments in ten companies, collectively totaling approximately $74.8 million in fair value and approximately $75.2 million in cost basis and which comprised approximately 4.2% of Main Street's Investment Portfolio at fair value.

       As discussed further in Note A.1., Main Street holds an investment in the External Investment Manager, a wholly owned subsidiary that is treated as a portfolio investment. As of December 31, 2016, there was no cost basis in this investment and the investment had a fair value of approximately $30.6 million, which comprised approximately 1.5% of Main Street's Investment Portfolio at fair value. As of December 31, 2015, there was no cost basis in this investment and the investment had a fair value of $27.3 million, which comprised 1.5% of Main Street's Investment Portfolio at fair value.

       The following tables summarize the composition of Main Street's total combined LMM portfolio investments, Middle Market portfolio investments and Private Loan portfolio investments at cost and fair value by type of investment as a percentage of the total combined LMM portfolio investments, Middle Market portfolio investments and Private Loan portfolio investments, as of December 31, 2016 and 2015 (this information excludes the Other Portfolio investments and the External Investment Manager).

Cost:
  December 31,
2016
  December 31,
2015
 

First lien debt

    76.1%     75.8%  

Equity

    14.5%     13.5%  

Second lien debt

    7.7%     8.7%  

Equity warrants

    1.1%     0.9%  

Other

    0.6%     1.1%  

    100.0%     100.0%  

 

Fair Value:
  December 31,
2016
  December 31,
2015
 

First lien debt

    68.7%     66.1%  

Equity

    22.6%     24.9%  

Second lien debt

    7.2%     7.7%  

Equity warrants

    0.9%     0.6%  

Other

    0.6%     0.7%  

    100.0%     100.0%  

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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — (Continued)

       The following tables summarize the composition of Main Street's total combined LMM portfolio investments, Middle Market portfolio investments and Private Loan portfolio investments by geographic region of the United States and other countries at cost and fair value as a percentage of the total combined LMM portfolio investments, Middle Market portfolio investments and Private Loan portfolio investments, as of December 31, 2016 and 2015 (this information excludes the Other Portfolio investments and the External Investment Manager). The geographic composition is determined by the location of the corporate headquarters of the portfolio company.

Cost:
  December 31,
2016
  December 31,
2015
 

Southwest

    29.7%     33.4%  

Midwest

    23.0%     16.7%  

West

    16.1%     14.6%  

Northeast

    14.8%     18.3%  

Southeast

    13.1%     13.5%  

Canada

    1.7%     2.2%  

Other Non-United States

    1.6%     1.3%  

    100.0%     100.0%  

 

Fair Value:
  December 31,
2016
  December 31,
2015
 

Southwest

    31.0%     36.7%  

Midwest

    21.2%     15.1%  

West

    18.3%     16.1%  

Northeast

    13.9%     16.3%  

Southeast

    12.7%     12.6%  

Other Non-United States

    1.5%     1.2%  

Canada

    1.4%     2.0%  

    100.0%     100.0%  

       Main Street's LMM portfolio investments, Middle Market portfolio investments and Private Loan portfolio investments are in companies conducting business in a variety of industries. The following tables summarize the composition of Main Street's total combined LMM portfolio investments, Middle Market portfolio investments and Private Loan portfolio investments by industry at cost and fair value as of

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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — (Continued)

December 31, 2016 and 2015 (this information excludes the Other Portfolio investments and the External Investment Manager).

Cost:
  December 31,
2016
  December 31,
2015
 

Energy Equipment & Services

    7.5%     7.3%  

Hotels, Restaurants & Leisure

    6.5%     7.9%  

Media

    5.7%     5.6%  

Machinery

    5.6%     5.7%  

Construction & Engineering

    5.3%     4.6%  

Commercial Services & Supplies

    5.0%     3.3%  

Electronic Equipment, Instruments & Components

    4.5%     4.3%  

Specialty Retail

    4.4%     5.1%  

IT Services

    3.9%     5.1%  

Internet Software & Services

    3.6%     3.1%  

Diversified Telecommunication Services

    3.3%     2.9%  

Auto Components

    3.0%     2.7%  

Health Care Providers & Services

    3.0%     4.1%  

Diversified Consumer Services

    2.8%     3.7%  

Food Products

    2.6%     2.4%  

Software

    2.6%     4.5%  

Health Care Equipment & Supplies

    2.3%     3.1%  

Diversified Financial Services

    2.3%     2.3%  

Communications Equipment

    2.3%     0.0%  

Computers & Peripherals

    2.2%     0.0%  

Building Products

    2.1%     1.9%  

Road & Rail

    1.5%     1.6%  

Consumer Finance

    1.5%     0.8%  

Professional Services

    1.4%     1.9%  

Oil, Gas & Consumable Fuels

    1.2%     2.1%  

Distributors

    1.1%     0.7%  

Air Freight & Logistics

    1.0%     1.1%  

Leisure Equipment & Products

    0.9%     1.1%  

Aerospace & Defense

    0.9%     1.0%  

Pharmaceuticals

    0.8%     1.9%  

Other(1)

    9.2%     8.2%  

    100.0%     100.0%  

(1)
Includes various industries with each industry individually less than 1.0% of the total combined LMM portfolio investments, Middle Market portfolio investments and Private Loan portfolio investments at each date.

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Fair Value:
  December 31,
2016
  December 31,
2015
 

Machinery

    6.7%     7.0%  

Hotels, Restaurants & Leisure

    6.5%     7.8%  

Energy Equipment & Services

    5.8%     6.0%  

Construction & Engineering

    5.6%     5.1%  

Diversified Consumer Services

    5.5%     5.7%  

Media

    5.2%     5.1%  

Commercial Services & Supplies

    5.0%     3.1%  

Specialty Retail

    4.6%     6.0%  

Electronic Equipment, Instruments & Components

    3.9%     3.7%  

IT Services

    3.7%     4.6%  

Internet Software & Services

    3.5%     2.9%  

Auto Components

    2.9%     2.8%  

Health Care Providers & Services

    2.9%     3.3%  

Software

    2.6%     5.9%  

Diversified Telecommunication Services

    2.5%     2.7%  

Road & Rail

    2.5%     2.6%  

Health Care Equipment & Supplies

    2.4%     2.9%  

Food Products

    2.4%     2.1%  

Diversified Financial Services

    2.3%     2.2%  

Communications Equipment

    2.3%     0.0%  

Computers & Peripherals

    2.3%     0.0%  

Building Products

    1.9%     1.6%  

Professional Services

    1.3%     1.7%  

Consumer Finance

    1.3%     0.6%  

Oil, Gas & Consumable Fuels

    1.1%     1.2%  

Air Freight & Logistics

    1.1%     1.3%  

Distributors

    1.1%     0.6%  

Construction Materials

    1.0%     0.4%  

Leisure Equipment & Products

    0.9%     1.1%  

Pharmaceuticals

    0.7%     1.7%  

Other(1)

    8.5%     8.3%  

    100.0%     100.0%  

(1)
Includes various industries with each industry individually less than 1.0% of the total combined LMM portfolio investments, Middle Market portfolio investments and Private Loan portfolio investments at each date.

       At December 31, 2016 and 2015, Main Street had no portfolio investment that was greater than 10% of the Investment Portfolio at fair value.

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Unconsolidated Significant Subsidiaries

       In accordance with Rules 3-09 and 4-08(g) of Regulation S-X, Main Street must determine which of its unconsolidated controlled portfolio companies, if any, are considered "significant subsidiaries." In evaluating these unconsolidated controlled portfolio companies, there are three tests utilized to determine if any of Main Street's Control Investments (as defined in Note A, including those unconsolidated controlled portfolio companies in which Main Street does not own greater than 50% of the voting securities) are considered significant subsidiaries: the investment test, the asset test and the income test. Rule 3-09 of Regulation S-X, as interpreted by the SEC, requires Main Street to include separate audited financial statements of an unconsolidated majority-owned subsidiary (Control Investments in which Main Street owns greater than 50% of the voting securities) in an annual report if any of the three tests exceed 20% of Main Street's total investments at fair value, total assets or total income, respectively. Rule 4-08(g) of Regulation S-X requires summarized financial information of a Control Investment in an annual report if any of the three tests exceeds 10% of Main Street's annual total amounts and Rule 10-01(b)(1) of Regulation S-X requires summarized financial information in a quarterly report if any of the three tests exceeds 20% of Main Street's year-to-date total amounts.

       As of December 31, 2016 and 2015, Main Street had no single investment that represented greater than 10% of its total Investment Portfolio at fair value and no single investment whose total assets represented greater than 10% of its total assets. After performing the income test for the year ended December 31, 2016, Main Street determined that its income from one of its Control Investments individually generated more than 10% of its total income, primarily due to the unrealized appreciation that was recognized on the investment. As such, CBT Nuggets, LLC, an unconsolidated portfolio company that was a Control Investment, but for which Main Street was not the majority owner and did not have rights to maintain greater than 50% of the board representation, was also considered a significant subsidiary at the 10% level as of December 31, 2016. Additionally, after performing the income test for the year ended December 31, 2015, excluding investments which were fully exited after December 31, 2015, CBT Nuggets, LLC and the wholly owned External Investment Manager were each considered significant subsidiaries at the 10% income level (see further discussion and summarized financial information of the External Investment Manager in Note D).

       The following table shows the summarized financial information for CBT Nuggets, LLC:

 
  As of December 31,  
 
  2016   2015  
 
  (dollars in thousands)
 

Balance Sheet Data

             

Current Assets

  $ 7,288   $ 4,499  

Noncurrent Assets

    13,609     16,749  

Current Liabilities

    17,871     15,490  

Noncurrent Liabilities

         

 

 
  Twelve Months Ended
December 31,
 
 
  2016   2015   2014  
 
  (dollars in thousands)
 

Summary of Operations

                   

Total Revenue

  $ 38,779   $ 33,924   $ 25,645  

Gross Profit

    33,661     29,352     21,196  

Income from Operations

    13,117     12,099     8,687  

Net Income

    12,819     12,343     10,100  

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NOTE D — EXTERNAL INVESTMENT MANAGER

       As discussed further in Note A.1., the External Investment Manager provides investment management and other services to External Parties. The External Investment Manager is accounted for as a portfolio investment of MSCC since the External Investment Manager conducts all of its investment management activities for External Parties.

       During May 2012, Main Street entered into an investment sub-advisory agreement with HMS Adviser, LP ("HMS Adviser"), which is the investment advisor to HMS Income, a non-listed BDC, to provide certain investment advisory services to HMS Adviser. In December 2013, after obtaining required no-action relief from the SEC to allow it to own a registered investment adviser, Main Street assigned the sub-advisory agreement to the External Investment Manager since the fees received from such arrangement could otherwise have negative consequences on MSCC's ability to meet the source-of-income requirement necessary for it to maintain its RIC tax treatment. Under the investment sub-advisory agreement, the External Investment Manager is entitled to 50% of the base management fee and the incentive fees earned by HMS Adviser under its advisory agreement with HMS Income. Based upon several fee waiver agreements with HMS Income and HMS Adviser, the External Investment Manager did not begin accruing the base management fee and incentive fees, if any, until January 1, 2014. The External Investment Manager has conditionally agreed to waive a limited amount of the incentive fees otherwise earned. During the years ended December 31, 2016, 2015 and 2014, the External Investment Manager earned $9.5 million, $7.8 million and $2.8 million, respectively, of management fees (net of fees waived, if any) under the sub-advisory agreement with HMS Adviser.

       The investment in the External Investment Manager is accounted for using fair value accounting, with the fair value determined by Main Street and approved, in good faith, by Main Street's Board of Directors. Main Street determines the fair value of the External Investment Manager using the Waterfall valuation method under the market approach (see further discussion in Note B.1.). Any change in fair value of the investment in the External Investment Manager is recognized on Main Street's consolidated statement of operations in "Net Change in Unrealized Appreciation (Depreciation) — Portfolio investments."

       The External Investment Manager has elected, for tax purposes, to be treated as a taxable entity, is not consolidated with Main Street for income tax purposes and is taxed at normal corporate tax rates based on its taxable income and, as a result of its activities, may generate income tax expense or benefit. The External Investment Manager has elected to be treated as a taxable entity to enable it to receive fee income and to allow MSCC to continue to comply with the "source-income" requirements contained in the RIC tax provisions of the Code. The taxable income, or loss, of the External Investment Manager may differ from its book income, or loss, due to temporary book and tax timing differences and permanent differences. The External Investment Manager provides for any income tax expense, or benefit, and any tax assets or liabilities in its separate financial statements.

       Main Street shares employees with the External Investment Manager and allocates costs related to such shared employees to the External Investment Manager generally based on a combination of the direct time spent, new investment origination activity and assets under management, depending on the nature of the expense. For the years ended December 31, 2016, 2015 and 2014, Main Street allocated $5.1 million, $4.3 million and $2.0 million of total expenses, respectively, to the External Investment Manager. The total contribution of the External Investment Manager to Main Street's net investment income consists of the combination of the expenses allocated to the External Investment Manager and dividend income from the External Investment Manager. For the years ended December 31, 2016, 2015 and 2014, the total contribution to Main Street's net investment income was $7.9 million, $6.5 million and $2.5 million, respectively.

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       Summarized financial information from the separate financial statements of the External Investment Manager as of December 31, 2016 and 2015 and for the years ended December 31, 2016, 2015 and 2014 is as follows:

 
  As of
December 31,
 
 
  2016   2015  
 
  (dollars in thousands)
 

Cash

  $   $ 31  

Accounts receivable — HMS Income

    2,496     2,262  

Total assets

  $ 2,496   $ 2,293  

Accounts payable to MSCC and its subsidiaries

  $ 1,635   $ 1,333  

Dividend payable to MSCC

    719     677  

Taxes payable

    142     283  

Equity

         

Total liabilities and equity

  $ 2,496   $ 2,293  

 

 
  Twelve Months Ended December 31,  
 
  2016   2015   2014  
 
  (dollars in thousands)
 

Management fee income

  $ 9,540   $ 7,767   $ 2,795  

Expenses allocated from MSCC or its subsidiaries:

                   

Salaries, share-based compensation and other personnel costs

    (3,470 )   (3,005 )   (1,479 )

Other G&A expenses

    (1,619 )   (1,330 )   (569 )

Total allocated expenses

    (5,089 )   (4,335 )   (2,048 )

Other direct G&A expenses

            (2 )

Total expenses

    (5,089 )   (4,335 )   (2,050 )

Pre-tax income

    4,451     3,432     745  

Tax expense

    (1,623 )   (1,235 )   (298 )

Net income

  $ 2,828   $ 2,197   $ 447  

NOTE E — DEFERRED FINANCING COSTS

       Deferred financing costs balances as of December 31, 2016 and 2015 are as follows (amounts in thousands):

 
  As of December 31,  
 
  2016   2015  

Credit Facility Fees

  $ 9,316   $ 8,467  

SBIC debenture leverage fees

    5,364     5,000  

4.50% Notes

    3,668     3,668  

6.125% Notes

    3,046     3,049  

SBIC debenture commitment fees

    2,798     2,048  

Subtotal

    24,192     22,232  

Accumulated amortization

    (11,547 )   (8,965 )

Net deferred financing costs balance

  $ 12,645   $ 13,267  

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       Estimated aggregate amortization expense for each of the five years succeeding December 31, 2016 and thereafter is as follows (amounts in thousands):

Years Ended December 31,
  Estimated
Amortization
 

2017

  $ 2,906  

2018

  $ 2,904  

2019

  $ 2,840  

2020

  $ 1,810  

2021

  $ 720  

2022 and thereafter

  $ 1,465  

NOTE F — SBIC DEBENTURES

       SBIC debentures payable were $240.0 million and $225.0 million at December 31, 2016 and 2015, respectively. SBIC debentures provide for interest to be paid semiannually, with principal due at the applicable 10-year maturity date of each debenture. In August 2016, Main Street received a license from the SBA to operate a third SBIC, which at the time provided Main Street with access up to an additional $125.0 million of long-term, fixed interest rate debt capital through the issuance of SBA-guaranteed debentures. During the year ended December 31, 2016, Main Street issued $15.0 million of SBIC debentures, leaving $110.0 million of additional capacity under Main Street's SBIC licenses. The weighted-average annual interest rate on the SBIC debentures was 4.1% and 4.2% as of December 31, 2016 and 2015, respectively. The first principal maturity due under the existing SBIC debentures is in 2017, and the weighted-average remaining duration as of December 31, 2016 was approximately 4.9 years. For the years ended December 31, 2016, 2015 and 2014, Main Street recognized interest expense attributable to the SBIC debentures of $10.0 million, $9.9 million and $9.5 million, respectively. Main Street has incurred upfront leverage and other miscellaneous fees of approximately 3.4% of the debenture principal amount. In accordance with SBA regulations, the Funds are precluded from incurring additional non-SBIC debt without the prior approval of the SBA. The Funds are subject to annual compliance examinations by the SBA. There have been no historical findings resulting from these examinations.

       As of December 31, 2016, the recorded value of the SBIC debentures was $239.6 million which consisted of (i) $74.8 million recorded at fair value, or $0.4 million less than the $75.2 million par value of the SBIC debentures issued in MSC II, (ii) $149.8 million recorded at par value and held in MSMF and (iii) $15.0 million recorded at par value and held in MSC III. As of December 31, 2016, if Main Street had adopted the fair value option under ASC 825 for all of its SBIC debentures, Main Street estimates the fair value of its SBIC debentures would be approximately $228.6 million, or $11.4 million less than the $240.0 million face value of the SBIC debentures.

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       The maturity dates and fixed interest rates for Main Street's SBIC Debentures as of December 31, 2016 and 2015 are summarized in the following table:

Maturity Date
  Fixed
Interest
Rate
  December 31,
2016
  December 31,
2015
 

9/1/2017

    6.43%     15,000,000     15,000,000  

3/1/2018

    6.38%     10,200,000     10,200,000  

9/1/2019

    4.95%     20,000,000     20,000,000  

3/1/2020

    4.51%     10,000,000     10,000,000  

9/1/2020

    3.50%     35,000,000     35,000,000  

9/1/2020

    3.93%     10,000,000     10,000,000  

3/1/2021

    4.37%     10,000,000     10,000,000  

3/1/2021

    4.60%     20,000,000     20,000,000  

9/1/2021

    3.39%     10,000,000     10,000,000  

9/1/2022

    2.53%     5,000,000     5,000,000  

3/1/2023

    3.16%     16,000,000     16,000,000  

3/1/2024

    3.95%     8,000,000     8,000,000  

3/1/2024

    3.95%     12,000,000     12,000,000  

3/1/2024

    3.95%     11,400,000     11,400,000  

3/1/2024

    3.95%     7,600,000     7,600,000  

3/1/2024

    3.55%     24,800,000     24,800,000  

3/1/2027(1)

    2.21%     6,000,000      

3/1/2027(1)

    2.03%     9,000,000      

Ending Balance

          240,000,000     225,000,000  

(1)
The interest rate for this tranche of SBIC debentures represents an initial rate that has not been fixed by the SBA as of December 31, 2016. In March 2017, the rate for this tranche of SBIC debentures will be determined and, thereafter, the rate will be fixed for the ensuing 10 years.

NOTE G — CREDIT FACILITY

       Main Street maintains the Credit Facility to provide additional liquidity to support its investment and operational activities. The Credit Facility includes total commitments of $555.0 million from a diversified group of fourteen lenders and was amended in 2016 to extend the maturity to September 2021. The Credit Facility also contains an accordion feature which allows Main Street to increase the total commitments under the facility to up to $750.0 million from new and existing lenders on the same terms and conditions as the existing commitments.

       Borrowings under the Credit Facility bear interest, subject to Main Street's election, on a per annum basis at a rate equal to the applicable LIBOR rate (0.77% as of December 31, 2016) plus (i) 1.875% (or the applicable base rate (Prime Rate of 3.75% as of December 31, 2016) plus 0.875%) as long as Main Street maintains an investment grade rating and meets certain agreed upon excess collateral and maximum leverage requirements, (ii) 2.0% (or the applicable base rate plus 1.0%) if Main Street maintains an investment grade rating but does not meet certain excess collateral and maximum leverage requirements or (iii) 2.25% (or the applicable base rate plus 1.25%) if Main Street does not maintain an investment grade rating. Main Street pays unused commitment fees of 0.25% per annum on the unused lender commitments under the Credit Facility. The Credit Facility is secured by a first lien on the assets of MSCC and its subsidiaries, excluding the equity ownership or assets of the Funds and the External Investment Manager. The Credit Facility contains certain affirmative and negative covenants, including but not limited to: (i) maintaining a minimum

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availability of at least 10% of the borrowing base, (ii) maintaining an interest coverage ratio of at least 2.0 to 1.0, (iii) maintaining an asset coverage ratio of at least 1.5 to 1.0 and (iv) maintaining a minimum tangible net worth. The Credit Facility is provided on a revolving basis through its final maturity date in September 2021, and contains two, one-year extension options which could extend the final maturity by up to two years, subject to certain conditions, including lender approval.

       At December 31, 2016, Main Street had $343.0 million in borrowings outstanding under the Credit Facility. As of December 31, 2016, if Main Street had adopted the fair value option under ASC 825 for its Credit Facility, Main Street estimates its fair value would approximate its recorded value. Main Street recognized interest expense related to the Credit Facility, including unused commitment fees and amortization of deferred loan costs, of $9.2 million, $7.7 million and $6.9 million, respectively, for the years ended December 31, 2016, 2015 and 2014. As of December 31, 2016, the interest rate on the Credit Facility was 2.5%. The average interest rate for the year ended December 31, 2016 was 2.4%. Main Street was in compliance with all financial covenants of the Credit Facility.

NOTE H — NOTES

       In April 2013, Main Street issued $92.0 million, including the underwriters full exercise of their option to purchase additional principal amounts to cover over-allotments, in aggregate principal amount of 6.125% Notes due 2023 (the "6.125% Notes"). The 6.125% Notes are unsecured obligations and rank pari passu with Main Street's current and future unsecured indebtedness; senior to any of its future indebtedness that expressly provides it is subordinated to the 6.125% Notes; effectively subordinated to all of its existing and future secured indebtedness, to the extent of the value of the assets securing such indebtedness, including borrowings under its Credit Facility; and structurally subordinated to all existing and future indebtedness and other obligations of any of its subsidiaries, including without limitation, the indebtedness of the Funds. The 6.125% Notes mature on April 1, 2023, and may be redeemed in whole or in part at any time or from time to time at Main Street's option on or after April 1, 2018. The 6.125% Notes bear interest at a rate of 6.125% per year payable quarterly on January 1, April 1, July 1 and October 1 of each year. The total net proceeds to Main Street from the 6.125% Notes, after underwriting discounts and estimated offering expenses payable by Main Street, were approximately $89.0 million. Main Street has listed the 6.125% Notes on the New York Stock Exchange under the trading symbol "MSCA." Main Street may from time to time repurchase the 6.125% Notes in accordance with the 1940 Act and the rules promulgated thereunder. As of December 31, 2016, the outstanding balance of the 6.125% Notes was $90.7 million. As of December 31, 2016, if Main Street had adopted the fair value option under ASC 825 for the 6.125% Notes, Main Street estimates the fair value would be approximately $93.3 million. Main Street recognized interest expense related to the 6.125% Notes, including amortization of deferred loan costs, of $5.9 million for each of the years ended December 31, 2016, 2015 and 2014.

       The indenture governing the 6.125% Notes (the "6.125% Notes Indenture") contains certain covenants, including covenants requiring Main Street's compliance with (regardless of whether Main Street is subject to) the asset coverage requirements set forth in Section 18(a)(1)(A) as modified by Section 61(a)(1) of the 1940 Act, as well as covenants requiring Main Street to provide financial information to the holders of the 6.125% Notes and the Trustee if Main Street ceases to be subject to the reporting requirements of the Securities Exchange Act of 1934. These covenants are subject to limitations and exceptions that are described in the 6.125% Notes Indenture. As of December 31, 2016, Main Street was in compliance with these covenants.

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       In November 2014, Main Street issued $175.0 million in aggregate principal amount of 4.50% unsecured notes due 2019 (the "4.50% Notes") at an issue price of 99.53%. The 4.50% Notes are unsecured obligations and rank pari passu with Main Street's current and future unsecured indebtedness; senior to any of its future indebtedness that expressly provides it is subordinated to the 4.50% Notes; effectively subordinated to all of its existing and future secured indebtedness, to the extent of the value of the assets securing such indebtedness, including borrowings under its Credit Facility; and structurally subordinated to all existing and future indebtedness and other obligations of any of its subsidiaries, including without limitation, the indebtedness of the Funds. The 4.50% Notes mature on December 1, 2019, and may be redeemed in whole or in part at any time at Main Street's option subject to certain make-whole provisions. The 4.50% Notes bear interest at a rate of 4.50% per year payable semiannually on June 1 and December 1 of each year. The total net proceeds from the 4.50% Notes, resulting from the issue price and after underwriting discounts and estimated offering expenses payable by us, were approximately $171.2 million. Main Street may from time to time repurchase the 4.50% Notes in accordance with the 1940 Act and the rules promulgated thereunder. As of December 31, 2016, the outstanding balance of the 4.50% Notes was $175.0 million. As of December 31, 2016, if Main Street had adopted the fair value option under ASC 825 for the 4.50% Notes, Main Street estimates its fair value would be approximately $177.3 million. Main Street recognized interest expense related to the 4.50% Notes, including amortization of deferred loan costs, of $8.6 million, $8.6 million and $1.3 million for the years ended December 31, 2016, 2015 and 2014, respectively.

       The indenture governing the 4.50% Notes (the "4.50% Notes Indenture") contains certain covenants, including covenants requiring Main Street's compliance with (regardless of whether Main Street is subject to) the asset coverage requirements set forth in Section 18(a)(1)(A) as modified by Section 61(a)(1) of the 1940 Act, as well as covenants requiring Main Street to provide financial information to the holders of the 4.50% Notes and the Trustee if Main Street ceases to be subject to the reporting requirements of the Securities Exchange Act of 1934. These covenants are subject to limitations and exceptions that are described in the 4.50% Notes Indenture. As of December 31, 2016, Main Street was in compliance with these covenants.

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NOTE I — FINANCIAL HIGHLIGHTS

Per Share Data:
  2016   2015   2014   2013   2012  

NAV at the beginning of the period

  $ 21.24   $ 20.85   $ 19.89   $ 18.59   $ 15.19  

Net investment income(1)(3)

    2.23     2.18     2.20     2.06     2.01  

Net realized gain (loss)(1)(2)(3)

    0.56     (0.43 )   0.53     0.07     0.55  

Net change in net unrealized appreciation (depreciation)(1)(2)(3)

    (0.14 )   0.20     (0.27 )   0.52     1.34  

Income tax benefit (provision)(1)(2)(3)

    0.02     0.18     (0.15 )       (0.37 )

Net increase in net assets resulting from operations(1)(3)

    2.67     2.13     2.31     2.65     3.53  

Dividends paid from net investment income

    (1.99 )   (2.49 )   (2.17 )   (2.29 )   (1.17 )

Distributions from capital gains

    (0.74 )   (0.16 )   (0.38 )   (0.37 )   (0.54 )

Total dividends paid

    (2.73 )   (2.65 )   (2.55 )   (2.66 )   (1.71 )

Impact of the net change in monthly dividends declared prior to the end of the period and paid in the subsequent period

    (0.01 )   (0.01 )   (0.01 )   (0.02 )   (0.02 )

Accretive effect of stock offerings (issuing shares above NAV per share)

    0.76     0.74     1.07     1.13     1.33  

Accretive effect of DRIP issuance (issuing shares above NAV per share)

    0.08     0.12     0.12     0.13     0.07  

Other(4)

    0.09     0.06     0.02     0.07     0.20  

NAV at the end of the period

  $ 22.10   $ 21.24   $ 20.85   $ 19.89   $ 18.59  

Market value at the end of the period

  $ 36.77   $ 29.08   $ 29.24   $ 32.69   $ 30.51  

Shares outstanding at the end of the period

    54,354,857     50,413,744     45,079,150     39,852,604     34,589,484  

(1)
Based on weighted-average number of common shares outstanding for the period.

(2)
Net realized gains or losses, net change in unrealized appreciation or depreciation, and income taxes can fluctuate significantly from period to period.

(3)
Per share amounts are net of the amounts attributable to the noncontrolling equity interests in MSC II for the periods prior to the completion of the acquisition of MSC II during the first quarter of 2012.

(4)
Includes the impact of the different share amounts as a result of calculating certain per share data based on the weighted-average basic shares outstanding during the period and certain per share data based on the shares outstanding as of a period end or transaction date.

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  Twelve Months Ended December 31,  
 
  2016   2015   2014   2013   2012  
 
  (dollars in thousands)
 

NAV at end of period

  $ 1,201,481   $ 1,070,894   $ 939,982   $ 792,533   $ 642,976  

Average NAV

  $ 1,118,567   $ 1,055,313   $ 885,568   $ 706,056   $ 512,156  

Average outstanding debt

  $ 801,048   $ 759,396   $ 575,524   $ 444,331   $ 322,154  

Ratio of total expenses, including income tax expense, to average NAV(1)(2)

    5.48%     4.63%     5.82%     5.82%     8.18%  

Ratio of operating expenses to average NAV(1)(3)

    5.59%     5.45%     5.11%     5.82%     6.07%  

Ratio of operating expenses, excluding interest expense, to average NAV(1)(3)

    2.58%     2.41%     2.44%     2.95%     3.03%  

Ratio of net investment income to average NAV(1)

    10.35%     10.15%     10.79%     10.68%     11.57%  

Portfolio turnover ratio

    24.63%     25.37%     35.71%     36.10%     56.22%  

Total investment return(4)

    37.36%     8.49%     (3.09)%     16.68%     53.60%  

Total return based on change in NAV(5)

    12.97%     11.11%     12.71%     15.06%     25.73%  

(1)
Ratios are net of the amounts attributable to the noncontrolling equity interests in MSC II for the periods prior to the completion of the acquisition of MSC II during the first quarter of 2012.

(2)
Total expenses are the sum of operating expenses and net income tax provision/benefit. Net income tax provision/benefit includes the accrual of net deferred tax provision/benefit relating to the net unrealized appreciation/depreciation on portfolio investments held in Taxable Subsidiaries and due to the change in the loss carryforwards, which are non-cash in nature and may vary significantly from period to period. Main Street is required to include net deferred tax provision/benefit in calculating its total expenses even though these net deferred taxes are not currently payable/receivable.

(3)
Unless otherwise noted, operating expenses include interest, compensation, general and administrative and share-based compensation expenses, net of expenses allocated to the External Investment Manager.

(4)
Total investment return based on purchase of stock at the current market price on the first day and a sale at the current market price on the last day of each period reported on the table and assumes reinvestment of dividends at prices obtained by Main Street's dividend reinvestment plan during the period. The return does not reflect any sales load that may be paid by an investor.

(5)
Total return based on change in net asset value was calculated using the sum of ending net asset value plus dividends to stockholders and other non-operating changes during the period, as divided by the beginning net asset value.

NOTE J — DIVIDENDS, DISTRIBUTIONS AND TAXABLE INCOME

       During 2016, Main Street paid supplemental dividends of $0.275 per share in each of June and December 2016, regular monthly dividends of $0.180 per share for each month of January through September 2016, regular monthly dividends of $0.185 per share for each month of October through December 2016, with such dividends totaling $141.6 million, or $2.725 per share. The 2016 regular monthly dividends, which total $112.5 million, or $2.175 per share, represent a 3.6% increase from the regular monthly dividends paid per share for the year ended 2015. For tax purposes, the 2016 dividends, which included the effects of accrued dividends, total $2.73 per share and were comprised of (i) ordinary income totaling approximately $1.911 per share, (ii) long term capital gain totaling approximately $0.761 per share, and (iii) qualified dividend income totaling approximately $0.058 per share. As of December 31, 2016, Main Street estimates that it has generated undistributed taxable income of approximately $52.4 million, or $0.96 per share, that will be carried forward toward distributions to be paid in 2017. For the years ended December 31, 2015 and 2014, Main Street paid total monthly dividends of approximately $130.0 million, or $2.650 per share, and $110.9 million, or $2.545 per share, respectively.

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       Ordinary dividend distributions from a RIC do not qualify for the reduced maximum tax rate on qualified dividend income from domestic corporations and qualified foreign corporations, except to the extent that the RIC received the income in the form of qualifying dividends from domestic corporations and qualified foreign corporations. The tax attributes for dividends will generally include both ordinary income and capital gains but may also include qualified dividends or return of capital. The tax character of distributions paid for the years ended December 31, 2016, 2015 and 2014 was as follows:

 
  Twelve Months Ended December 31,  
 
  2016   2015   2014  
 
  (dollars in thousands)
 

Ordinary income(1)

  $ 100,059   $ 114,975   $ 91,369  

Qualified dividends

    2,992     5,179     2,106  

Distributions of long term capital gains

    39,522     11,285     18,502  

Distributions on tax basis

  $ 142,573   $ 131,439   $ 111,977  

(1)
The years ended December 31, 2016, 2015 and 2014 include $1.6 million, $1.5 million and $1.2 million, respectively, that was reported as compensation for services for tax purposes in accordance with Section 83 of the Code.

       MSCC has elected to be treated for U.S. federal income tax purposes as a RIC. MSCC's taxable income includes the taxable income generated by MSCC and certain of its subsidiaries, including the Funds, which are treated as disregarded entities for tax purposes. As a RIC, MSCC generally will not pay corporate-level U.S. federal income taxes on any net ordinary taxable income or capital gains that MSCC distributes to its stockholders. MSCC must generally distribute at least 90% of its "investment company taxable income" (which is generally its net ordinary taxable income and realized net short-term capital gains in excess of realized net long-term capital losses) and 90% of its tax-exempt income to maintain its RIC status (pass-through tax treatment for amounts distributed). As part of maintaining RIC status, undistributed taxable income (subject to a 4% non-deductible U.S. federal excise tax) pertaining to a given fiscal year may be distributed up to 12 months subsequent to the end of that fiscal year, provided such dividends are declared on or prior to the later of (i) filing of the U.S. federal income tax return for the applicable fiscal year or (ii) the fifteenth day of the ninth month following the close of the year in which such taxable income was generated.

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       Listed below is a reconciliation of "Net increase in net assets resulting from operations" to taxable income and to total distributions declared to common stockholders for the years ended December 31, 2016, 2015 and 2014.

 
  Twelve Months Ended December 31,  
 
  2016   2015   2014  
 
  (estimated, dollars in thousands)
 

Net increase in net assets resulting from operations

  $ 138,899   $ 104,437   $ 100,748  

Book tax difference from share-based compensation expense

    1,619     1,006     4,215  

Net change in net unrealized (appreciation) depreciation

    7,519     (9,992 )   11,707  

Income tax provision (benefit)

    (1,227 )   (8,687 )   6,287  

Pre-tax book (income) loss not consolidated for tax purposes

    15,742     32,323     (7,721 )

Book income and tax income differences, including debt origination, structuring fees, dividends, realized gains (losses) and changes in estimates

    (7,300 )   3,397     (1,667 )

Estimated taxable income(1)

    155,252     122,484     113,569  

Taxable income earned in prior year and carried forward for distribution in current year

    29,683     38,638     37,046  

Taxable income earned prior to period end and carried forward for distribution next period

    (52,410 )   (38,757 )   (46,301 )

Dividend payable as of period end and paid in the following period

    10,048     9,074     7,663  

Total distributions accrued or paid to common stockholders

  $ 142,573   $ 131,439   $ 111,977  

(1)
Main Street's taxable income for each period is an estimate and will not be finally determined until the company files its tax return for each year. Therefore, the final taxable income, and the taxable income earned in each period and carried forward for distribution in the following period, may be different than this estimate.

       The Taxable Subsidiaries primarily hold certain portfolio investments for Main Street. The Taxable Subsidiaries permit Main Street to hold equity investments in portfolio companies which are "pass-through" entities for tax purposes and to continue to comply with the "source-income" requirements contained in the RIC tax provisions of the Code. The Taxable Subsidiaries are consolidated with Main Street for U.S. GAAP financial reporting purposes, and the portfolio investments held by the Taxable Subsidiaries are included in Main Street's consolidated financial statements as portfolio investments and recorded at fair value. The Taxable Subsidiaries are not consolidated with MSCC for income tax purposes and may generate income tax expense, or benefit, and tax assets and liabilities, as a result of their ownership of certain portfolio investments. The taxable income, or loss, of the Taxable Subsidiaries may differ from its book income, or loss, due to temporary book and tax timing differences and permanent differences. This income tax expense, or benefit, if any, and the related tax assets and liabilities, are reflected in Main Street's consolidated financial statements.

       The income tax expense, or benefit, and the related tax assets and liabilities generated by the Taxable Subsidiaries, if any, are reflected in Main Street's consolidated statement of operations. Main Street's

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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — (Continued)

provision for income taxes was comprised of the following for the years ended December 31, 2016, 2015 and 2014 (amounts in thousands):

 
  Twelve Months Ended
December 31,
 
 
  2016   2015   2014  

Current tax expense:

                   

Federal

  $ 1   $ 607   $ 734  

State

    347     1,181     847  

Total current tax expense

    348     1,788     1,581  

Deferred tax expense (benefit):

                   

Federal

    (5,359 )   (10,781 )   2,515  

State

    2,043     (870 )   759  

Total deferred tax expense (benefit)

    (3,316 )   (11,651 )   3,274  

Excise tax

    1,741     1,176     1,432  

Total income tax provision (benefit)

  $ (1,227 ) $ (8,687 ) $ 6,287  

       As of December 31, 2016, the cost of investments for U.S. federal income tax purposes was $1,858.2 million, with such investments having a gross unrealized appreciation of $284.1 million and gross unrealized depreciation of $145.4 million.

       The net deferred tax asset at December 31, 2016 and 2015 was $9.1 million and $4.0 million, respectively, primarily related to loss carryforwards, timing differences in net unrealized appreciation or depreciation and other temporary book-tax differences relating to portfolio investments held by the Taxable Subsidiaries. In addition, during the three months ended March 31, 2016, Main Street recorded a one-time $1.8 million increase to deferred tax assets for previously unrecognized excess tax benefits associated with share-based compensation due to the early adoption of the new accounting standard ASU 2016-09 (See further discussion in Note B.8.). As of December 31, 2016, for U.S. federal income tax purposes, the Taxable Subsidiaries had a capital loss carryforward of $5.2 million which will expire in taxable year 2020 and a capital loss carryforward of $9.4 million which will expire in taxable year 2021. At December 31, 2016, for U.S. federal income tax purposes, the Taxable Subsidiaries had a net operating loss carryforward which will expire in various taxable years from 2029 through 2036. The timing and manner in which Main Street will utilize any loss carryforwards in any year, or in total, may be limited in the future under the provisions of the Code.

       Management believes that the realization of the deferred tax assets is more likely than not based on expectations as to future taxable income and scheduled reversals of temporary differences. Accordingly, Main Street did not record a valuation allowance related to its deferred tax assets at December 31, 2016 and 2015.

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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — (Continued)

The following table sets forth the significant components of net deferred tax assets and liabilities as of December 31, 2016 and 2015 (amounts in thousands):

 
  Years Ended
December 31,
 
 
  2016   2015  

Deferred tax assets:

             

Net operating loss carryforwards

  $ 38,880   $ 23,508  

Capital loss carryforwards

    5,175     2,831  

Total deferred tax assets

    44,055     26,339  

Deferred tax liabilities:

             

Net unrealized appreciation of portfolio investments

    (21,807 )   (19,482 )

Net basis differences in portfolio investments

    (13,112 )   (2,446 )

Other

    (11 )   (408 )

Total deferred tax liabilities

    (34,930 )   (22,336 )

Total deferred tax asset, net

  $ 9,125   $ 4,003  

NOTE K — COMMON STOCK

       During November 2015, Main Street commenced a program with certain selling agents through which it can sell shares of its common stock by means of at-the-market offerings from time to time (the "ATM Program"). During the year ended December 31, 2016, Main Street sold 3,324,646 shares of its common stock at a weighted-average price of $34.17 per share and raised $113.6 million of gross proceeds under the ATM Program. Net proceeds were $112.0 million after commissions to the selling agents on shares sold and offering costs. As of December 31, 2016, sales transactions representing 42,413 shares had not settled and are not included in shares issued and outstanding on the face of the consolidated balance sheet, but are included in the weighted-average shares outstanding in the consolidated statement of operations and in the shares used to calculate net asset value per share. As of December 31, 2016, 1,534,786 shares were available for sale under the ATM Program.

       During November and December 2015, Main Street sold 140,568 shares of its common stock at a weighted-average price of $31.98 per share and raised $4.5 million of gross proceeds under the ATM Program. Net proceeds were $4.3 million after commissions to the selling agents on shares sold and offering costs.

       During March 2015, Main Street completed a follow-on public equity offering of 4,370,000 shares of common stock, including the underwriters' full exercise of their option to purchase 570,000 additional shares, resulting in total net proceeds, including exercise of the underwriters' option to purchase additional shares and after deducting underwriting discounts and estimated offering expenses payable by Main Street, of approximately $127.8 million.

       During April 2014, Main Street completed a follow-on public equity offering of 4,600,000 shares of common stock, including the underwriters' full exercise of their option to purchase 600,000 additional shares, resulting in total net proceeds, including exercise of the underwriters' option to purchase additional shares and after deducting underwriting discounts and estimated offering expenses payable by Main Street, of approximately $139.7 million.

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NOTE L — DIVIDEND REINVESTMENT PLAN ("DRIP")

       Main Street's DRIP provides for the reinvestment of dividends on behalf of its stockholders, unless a stockholder has elected to receive dividends in cash. As a result, if Main Street declares a cash dividend, the company's stockholders who have not "opted out" of the DRIP by the dividend record date will have their cash dividend automatically reinvested into additional shares of MSCC common stock. The share requirements of the DRIP may be satisfied through the issuance of shares of common stock or through open market purchases of common stock. Newly issued shares will be valued based upon the final closing price of MSCC's common stock on the valuation date determined for each dividend by Main Street's Board of Directors. Shares purchased in the open market to satisfy the DRIP requirements will be valued based upon the average price of the applicable shares purchased, before any associated brokerage or other costs. Main Street's DRIP is administered by its transfer agent on behalf of Main Street's record holders and participating brokerage firms. Brokerage firms and other financial intermediaries may decide not to participate in Main Street's DRIP but may provide a similar dividend reinvestment plan for their clients.

       For the year ended December 31, 2016, $14.1 million of the total $141.6 million in dividends paid to stockholders represented DRIP participation. During this period, the DRIP participation requirements were satisfied with the issuance of 434,631 newly issued shares. For the year ended December 31, 2015, $19.4 million of the total $130.0 million in dividends paid to stockholders represented DRIP participation. During this period, the DRIP participation requirements were satisfied with the issuance of 636,079 newly issued shares and with the purchase of 3,131 shares of common stock in the open market. For the year ended December 31, 2014, $17.4 million of the total $110.9 million in dividends paid to stockholders represented DRIP participation. During this period, the DRIP participation requirements were satisfied with the issuance of 468,417 newly issued shares and with the purchase of 85,754 shares of common stock in the open market. The shares disclosed above relate only to Main Street's DRIP and exclude any activity related to broker-managed dividend reinvestment plans.

NOTE M — SHARE-BASED COMPENSATION

       Main Street accounts for its share-based compensation plans using the fair value method, as prescribed by ASC 718, Compensation — Stock Compensation. Accordingly, for restricted stock awards, Main Street measured the grant date fair value based upon the market price of its common stock on the date of the grant and amortizes the fair value of the awards as share-based compensation expense over the requisite service period, which is generally the vesting term.

       Main Street's Board of Directors approves the issuance of shares of restricted stock to Main Street employees pursuant to the Main Street Capital Corporation 2015 Equity and Incentive Plan (the "Equity and Incentive Plan"). These shares generally vest over a three-year period from the grant date. The fair value is expensed over the service period, starting on the grant date. The following table summarizes the restricted stock issuances approved by Main Street's Board of Directors under the Equity and Incentive Plan, net of shares forfeited, if any, and the remaining shares of restricted stock available for issuance as of December 31, 2016.

Restricted stock authorized under the plan

    3,000,000  

Less net restricted stock granted during:

       

Year ended December 31, 2015

    (900 )

Year ended December 31, 2016

    (260,514) (1)

Restricted stock available for issuance as of December 31, 2016

    2,738,586  

(1)
Shares indicated are net of forfeited shares

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       As of December 31, 2016, the following table summarizes the restricted stock issued to Main Street's non-employee directors and the remaining shares of restricted stock available for issuance pursuant to the Main Street Capital Corporation 2015 Non-Employee Director Restricted Stock Plan. These shares are granted upon appointment or election to the board and vest on the day immediately preceding the annual meeting of stockholders following the respective grant date and are expensed over such service period.

Restricted stock authorized under the plan

    300,000  

Less net restricted stock granted during:

       

Year ended December 31, 2015

    (6,806 )

Year ended December 31, 2016

    (6,748 )

Restricted stock available for issuance as of December 31, 2016

    286,446  

       For the years ended December 31, 2016, 2015 and 2014, Main Street recognized total share-based compensation expense of $8.3 million, $6.3 million and $4.2 million, respectively, related to the restricted stock issued to Main Street employees and independent directors. As of December 31, 2016, there was $12.1 million of total unrecognized compensation expense related to Main Street's non-vested restricted shares. This compensation expense is expected to be recognized over a remaining weighted-average period of approximately 1.7 years as of December 31, 2016.

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NOTE N — COMMITMENTS AND CONTINGENCIES

 
  Amount  

Investments with equity capital commitments that have not yet funded:

       

Congruent Credit Opportunities Funds

   
 
 

Congruent Credit Opportunities Fund II, LP

  $ 8,488  

Congruent Credit Opportunities Fund III, LP

    14,246  

  $ 22,734  

Encap Energy Fund Investments

   
 
 

EnCap Energy Capital Fund VIII, L.P. 

  $ 540  

EnCap Energy Capital Fund VIII Co-Investors, L.P. 

    27  

EnCap Energy Capital Fund IX, L.P. 

    785  

EnCap Energy Capital Fund X, L.P. 

    6,961  

EnCap Flatrock Midstream Fund II, L.P. 

    5,410  

EnCap Flatrock Midstream Fund III, L.P. 

    4,987  

  $ 18,710  

Freeport Fund Investments

   
 
 

Freeport First Lien Loan Fund III LP

  $ 7,737  

Freeport Financial SBIC Fund LP

    1,375  

  $ 9,112  

Brightwood Capital Fund Investments

   
 
 

Brightwood Capital Fund III, LP

  $ 3,000  

Brightwood Capital Fund IV, LP

    4,500  

  $ 7,500  

I-45 SLF LLC

 
$

2,800
 

EIG Fund Investments

 
$

3,503
 

LKCM Headwater Investments I, L.P. 

 
$

2,500
 

Dos Rios Partners

   
 
 

Dos Rios Partners, LP

  $ 1,594  

Dos Rios Partners — A, LP

    506  

  $ 2,100  

Total equity commitments

 
$

68,959
 

Investments with commitments to fund revolving loans that have not been fully drawn or term loans with additional commitments not yet funded:

   
 
 

PT Network, LLC

 
$

8,775
 

Arcus Hunting LLC

    4,336  

UniRush, LLC

    4,000  

CDHA Management, LLC

    3,258  

Barfly Ventures, LLC

    2,756  

Buca C, LLC

    2,370  

Strike, LLC

    2,500  

Truck Bodies and Equipment International, Inc. 

    2,208  

Hojeij Branded Foods, LLC

    2,028  

Applied Products, Inc. 

    2,000  

Mid-Columbia Lumber Products, LLC

    2,000  

LaMi Products, LLC

    1,765  

CapFusion, LLC

    1,600  

Hawk Ridge Systems, LLC

    1,600  

Messenger, LLC

    1,417  

Gamber-Johnson Holdings, LLC

    1,200  

Grace Hill, LLC

    1,025  

Lamb Ventures, LLC

    1,000  

NRI Clinical Research, LLC

    800  

Apex Linen Service, Inc. 

    800  

Mystic Logistics Holdings, LLC

    800  

Pardus Oil and Gas, LLC

    663  

Jackmont Hospitality, Inc. 

    593  

PPC/SHIFT LLC

    500  

UniTek Global Services, Inc. 

    483  

Jensen Jewelers of Idaho, LLC

    350  

Subsea Global Solutions, LLC

    285  

Permian Holdco 2, Inc. 

    111  

Total loan commitments

  $ 51,223  

Total commitments

  $ 120,182  

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       Main Street will fund its unfunded commitments from the same sources it uses to fund its investment commitments that are funded at the time they are made (which are typically through existing cash and cash equivalents, borrowings under the Credit Facility, the liquidation of Marketable securities and idle funds investments, and a combination of future debt and equity capital). Main Street follows a process to manage its liquidity and ensure that it has available capital to fund its unfunded commitments as necessary. The Company had total unrealized depreciation of $0.1 million on the outstanding unfunded commitments as of December 31, 2016.

       Main Street is obligated under an operating lease for office space. Total rent expense incurred by Main Street for the years ended December 2016, 2015 and 2014 was $0.6 million, $0.5 million and $0.4 million, respectively.

       The following table shows future minimum payments under Main Street's operating lease as of December 31, 2016:

For the Years Ended December 31,
  Amount  

2017

    185  

2018

    683  

2019

    749  

2020

    763  

2021

    777  

Thereafter

    4,959  

Total

    8,116  

       Main Street may, from time to time, be involved in litigation arising out of its operations in the normal course of business or otherwise. Furthermore, third parties may try to impose liability on Main Street in connection with the activities of its portfolio companies. While the outcome of any current legal proceedings cannot at this time be predicted with certainty, Main Street does not expect any current matters will materially affect its financial condition or results of operations; however, there can be no assurance whether any pending legal proceedings will have a material adverse effect on Main Street's financial condition or results of operations in any future reporting period.

NOTE O — SELECTED QUARTERLY DATA (UNAUDITED)

 
  2016  
 
  (dollars in thousands,
except per share amounts)
 
 
  Qtr. 1   Qtr. 2   Qtr. 3   Qtr. 4  

Total investment income

  $ 42,006   $ 42,902   $ 46,599   $ 46,830  

Net investment income

  $ 27,164   $ 27,648   $ 30,557   $ 30,432  

Net increase in net assets resulting from operations

  $ 16,812   $ 30,911   $ 43,181   $ 47,993  

Net investment income per share-basic and diluted

  $ 0.54   $ 0.54   $ 0.58   $ 0.57  

Net increase in net assets resulting from operations per share-basic and diluted

  $ 0.33   $ 0.60   $ 0.82   $ 0.90  

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  2015  
 
  (dollars in thousands,
except per share amounts)
 
 
  Qtr. 1   Qtr. 2   Qtr. 3   Qtr. 4  

Total investment income

  $ 37,179   $ 41,308   $ 42,608   $ 43,493  

Net investment income

  $ 23,491   $ 27,201   $ 27,861   $ 28,520  

Net increase in net assets resulting from operations

  $ 35,424   $ 40,802   $ 20,668   $ 7,543  

Net investment income per share-basic and diluted

  $ 0.51   $ 0.55   $ 0.56   $ 0.57  

Net increase in net assets resulting from operations per share-basic and diluted

  $ 0.77   $ 0.82   $ 0.41   $ 0.15  

 

 
  2014  
 
  (dollars in thousands,
except per share amounts)
 
 
  Qtr. 1   Qtr. 2   Qtr. 3   Qtr. 4  

Total investment income

  $ 30,776   $ 34,877   $ 36,351   $ 38,759  

Net investment income

  $ 20,739   $ 23,578   $ 24,887   $ 26,332  

Net increase in net assets resulting from operations

  $ 27,234   $ 29,950   $ 21,569   $ 21,995  

Net investment income per share-basic and diluted

  $ 0.52   $ 0.53   $ 0.55   $ 0.59  

Net increase in net assets resulting from operations per share-basic and diluted

  $ 0.68   $ 0.68   $ 0.48   $ 0.49  

NOTE P — RELATED PARTY TRANSACTIONS

       As discussed further in Note D, the External Investment Manager is treated as a wholly owned portfolio company of MSCC and is included as part of Main Street's Investment Portfolio. At December 31, 2016, Main Street had a receivable of approximately $2.4 million due from the External Investment Manager which included approximately $1.6 million related primarily to operating expenses incurred by MSCC or its subsidiaries required to support the External Investment Manager's business, along with dividends declared but not paid by the External Investment Manager of approximately $0.7 million.

       In November 2015, Main Street's Board of Directors approved and adopted the Main Street Capital Corporation Deferred Compensation Plan (the "2015 Deferred Compensation Plan"). The 2015 Deferred Compensation Plan became effective on January 1, 2016 and replaced the Deferred Compensation Plan for Non-Employee Directors previously adopted by the Board of Directors in June 2013 (the "2013 Deferred Compensation Plan"). Under the 2015 Deferred Compensation Plan, non-employee directors and certain key employees may defer receipt of some or all of their cash compensation and directors' fees, subject to certain limitations. Individuals participating in the 2015 Deferred Compensation Plan receive distributions of their respective balances based on predetermined payout schedules or other events as defined by the plan and are also able to direct investments made on their behalf among investment alternatives permitted from time to time under the plan, including phantom Main Street stock units. As of December 31, 2016, $2.0 million of compensation and directors' fees had been deferred under the 2015 Deferred Compensation Plan (including amounts previously deferred under the 2013 Deferred Compensation Plan). Of this amount, $1.7 million was deferred into phantom Main Street stock units, representing 55,866 shares of Main Street's common stock. Including phantom stock units issued through dividend reinvestment, the phantom stock units outstanding as of December 31, 2016 represented 64,839 shares of Main Street's common stock. Any amounts deferred under the plan represented by phantom Main Street stock units will not be issued or included as outstanding on the consolidated statement of changes in net assets until such shares are actually distributed to the participant in accordance with the plan, but are included in operating expenses and weighted-average shares outstanding in Main Street's consolidated statement of operations as earned.

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NOTE Q — SUBSEQUENT EVENTS

       In January 2017, Main Street led a new portfolio investment to facilitate the majority recapitalization of NuStep, Inc. ("NuStep"), the leading manufacturer of recumbent cross-trainers focused primarily on the physical therapy, physical rehabilitation and active aging markets. Main Street, along with HMS Income, partnered with the NuStep's management team to facilitate the recapitalization of NuStep, with Main Street funding $30.8 million in a combination of first-lien, senior secured term debt and direct equity investment. Headquartered in Ann Arbor, Michigan, NuStep serves customers across a variety of end markets, including physical therapy and rehabilitation clinics, skilled nursing facilities, fitness centers, hospitals, retirement communities and individual consumers. NuStep manufactures all of its products at its manufacturing facilities in Ann Arbor and sells its products throughout the United States and across a wide variety of international markets.

       In February 2017, Main Street led a new portfolio investment to facilitate the management-led buyout of Charps Welding & Fabricating, Inc. ("Charps"), a premier specialty contractor focused on the maintenance, repair, fabrication and construction of oil and gas pipelines. Main Street, along with HMS Income, partnered with the Charps' management team to facilitate the buyout, with Main Street funding $18.8 million in a combination of first-lien, senior secured term debt and a direct equity investment. Headquartered in Clearbrook, Minnesota, and founded in 1999, Charps provides various pipeline services to customers focused on energy transmission and distribution. Charps primarily performs work in the Midwest, Ohio Valley and Eastern U.S., and its pipeline services include pipeline integrity services, emergency response, hydrostatic testing, existing line replacement, pipeline fabrication and new construction and installation.

       During February 2017, Main Street declared regular monthly dividends of $0.185 per share for each of April, May and June 2017. These regular monthly dividends equal a total of $0.555 per share for the second quarter of 2017. The second quarter 2017 regular monthly dividends represent a 2.8% increase from the dividends declared for the second quarter of 2016. Including the dividends declared for the second quarter of 2017, Main Street will have paid $19.715 per share in cumulative dividends since its October 2007 initial public offering.

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Report of Independent Registered Public Accounting Firm

Board of Directors and Stockholders'
Main Street Capital Corporation

       We have audited in accordance with the standards of the Public Company Accounting Oversight Board (United States) the consolidated financial statements of Main Street Capital Corporation (a Maryland corporation) and subsidiaries (the "Company") referred to in our report dated February 24, 2017, which is included in the annual report on Form 10-K. Our audits of the basic consolidated financial statements included the financial statement schedule listed in the index appearing under Item 15(2), which is the responsibility of the Company's management. In our opinion, this financial statement schedule, when considered in relation to the basic consolidated financial statements taken as a whole, presents fairly, in all material respects, the information set forth therein.

/s/ GRANT THORNTON LLP

Dallas, Texas
February 24, 2017

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Table of Contents

Schedule 12-14

MAIN STREET CAPITAL CORPORATION

Consolidated Schedule of Investments in and Advances to Affiliates
December 31, 2016
(dollars in thousands)

Company
 
Investment(1)
  Amount of
Interest,
Fees or
Dividends
Credited to
Income(2)
  December 31,
2015
Fair Value
  Gross
Additions(3)
  Gross
Reductions(4)
  December 31,
2016
Fair Value
 

Control Investments

                                   

                                   

Majority-owned investments

                                   

                                   

Café Brazil, LLC

  Member Units   $ 429   $ 7,330   $   $ 1,290   $ 6,040  

Clad-Rex Steel, LLC

  LIBOR Plus 9.50%     5         396         396  

  LIBOR Plus 9.50%     192         13,941         13,941  

  Member Units             7,280         7,280  

  10% Secured Debt     4         1,190         1,190  

  Member Units             210         210  

CMS Minerals Investments

  Member Units     178         4,083     702     3,381  

  Preferred Member Units     1,239     6,914         3,232     3,682  

Gamber-Johnson Holdings, LLC

  LIBOR Plus 11.00% (Floor 1.00%)     1,551         23,846         23,846  

  Member Units     404         18,920         18,920  

GRT Rubber Technologies LLC

  LIBOR Plus 9.00% (Floor 1.00%)     1,465     15,988     134     2,848     13,274  

  Member Units     949     15,580     4,730         20,310  

Hydratec, Inc.

  Common Stock     1,631     14,950     690         15,640  

IDX Broker, LLC

  12.5% Secured Debt     1,460     11,350     23     423     10,950  

  Member Units     136     6,440     600         7,040  

Jensen Jewelers of Idaho, LLC

  Prime Plus 6.75% (Floor 2.00%)     475     4,055     500     500     4,055  

  Member Units     209     4,750         290     4,460  

Lamb Ventures, LLC

  LIBOR Plus 5.75%     7         351     351      

  11% Secured Debt     869     7,962         305     7,657  

  Preferred Equity         328     72         400  

  Member Units     90     4,690     1,300         5,990  

  9.5% Secured Debt     86     919     300     49     1,170  

  Member Units     362     1,240     100         1,340  

Lighting Unlimited, LLC

  8% Secured Debt     123     1,514             1,514  

  Preferred Equity         430         20     410  

  Warrants         40         40      

  Member Units     (81 )   350           350      

Mid-Columbia Lumber

  10% Secured Debt     178     1,750             1,750  

Products, LLC

  12% Secured Debt     476     3,900             3,900  

  Member Units     5     2,580     566     666     2,480  

  9.5% Secured Debt     83     881         45     836  

  Member Units     23     550     50         600  

MSC Adviser I, LLC

  Member Units     2,829     27,272     3,345         30,617  

Mystic Logistics Holdings, LLC

  12% Secured Debt     1,184     9,448     42     314     9,176  

  Common Stock         5,970         190     5,780  

NRP Jones, LLC

  6% Current / 6% PIK Secured Debt     1,921     12,948     967         13,915  

  Warrants         450         320     130  

  Member Units         1,480         1,070     410  

PPL RVs, Inc.

  11.1% Secured Debt     913     9,710         9,710      

  LIBOR Plus 7.00% (Floor 0.50%)     234         17,826         17,826  

  Common Stock     261     9,770     2,010           11,780  

Principle Environmental, LLC

  12% Secured Debt     516     4,060     21     21     4,060  

  12% Current / 2% PIK Secured Debt     473     3,310     69     1     3,378  

  Preferred Member Units         6,060         690     5,370  

  Warrants         310         40     270  

Quality Lease Service, LLC

  8% PIK Secured Debt     530     6,538     530         7,068  

  Member Units         2,638     550         3,188  

185


Table of Contents

Company
 
Investment(1)
  Amount of
Interest,
Fees or
Dividends
Credited to
Income(2)
  December 31,
2015
Fair Value
  Gross
Additions(3)
  Gross
Reductions(4)
  December 31,
2016
Fair Value
 

Southern RV, LLC

  13% Secured Debt     157     11,400     104     11,504      

  Member Units     957     15,100         15,100      

  13% Secured Debt     45     3,250     30     3,280      

  Member Units         1,200         1,200      

The MPI Group, LLC

  9% Secured Debt     269     2,921     1         2,922  

  Series A Preferred Units         690         690      

  Warrants                      

  Member Units     129     2,230     70         2,300  

Travis Acquisition LLC

  12% Secured Debt     340     3,513     43     3,556      

  Member Units     2,812     14,480         14,480      

Uvalco Supply, LLC

  9% Secured Debt     97     1,314         442     872  

  Member Units     120     5,460         820     4,640  

Vision Interests, Inc.

  13% Secured Debt     412     3,052     19     257     2,814  

  Series A Preferred Stock         3,550         550     3,000  

  Common Stock         210         210      

Ziegler's NYPD, LLC

  6.5% Secured Debt     68     992     2         994  

  12% Secured Debt     46     500         200     300  

  14% Secured Debt     391     2,750             2,750  

  Warrants         50     190         240  

  Preferred Member Units         3,400     700         4,100  

Other controlled investments

                                   

                                   

Access Media Holdings, LLC

  5.00% Current / 5.00% PIK Secured Debt     2,270     20,380     1,110     1,790     19,700  

  Preferred Member Units         2,000     2,081     3,841     240  

  Member Units                      

Ameritech College Operations, LLC

  10% Secured Debt     52     514             514  

  13% Secured Debt     315     3,025             3,025  

  13% Secured Debt     51     489             489  

  Preferred Member Units     (5 )   2,291             2,291  

ASC Interests, LLC

  11% Secured Debt     271     2,500     14     414     2,100  

  Member Units     95     2,230     450         2,680  

Bond-Coat, Inc.

  12% Secured Debt     1,450     11,596     35     35     11,596  

  Common Stock         9,140         2,480     6,660  

CBT Nuggets, LLC

  Member Units     7,425     42,120     13,360         55,480  

Datacom, LLC

  8% Secured Debt     53         900           900  

  5.25% Current / 5.25% PIK Secured Debt     1,193     10,970     529     450     11,049  

  Class A Preferred Member Units         1,181     187         1,368  

  Class B Preferred Member Units         5,079         3,550     1,529  

Garreco, LLC

  14% Secured Debt     838     5,739     30     550     5,219  

  Member Units         1,270         120     1,150  

Gulf Manufacturing, LLC

  9% PIK Secured Debt     71     777             777  

  Member Units     51     13,770         5,000     8,770  

Gulf Publishing Holdings, LLC

  12.5% Secured Debt     969         9,911         9,911  

  Member Units     62         3,124         3,124  

Harrison Hydra-Gen, Ltd.

  9% Secured Debt     9     5,010           5,010      

  Preferred Stock     2     1,361     2     1,363      

  Common Stock     69     2,600     520         3,120  

Hawthorne Customs and Dispatch

  Member Units         460         180     280  

Services, LLC

  Member Units     188     2,220         180     2,040  

HW Temps LLC

  LIBOR Plus 13% (Floor 1.00%)     1,172     9,884     816     200     10,500  

  Preferred Member Units     389     3,942         2     3,940  

Indianapolis Aviation Partners, LLC

  15% Secured Debt     636     3,100     5     5     3,100  

  Warrants         2,540     109         2,649  

Marine Shelters Holdings, LLC

  12% PIK Secured Debt     895     8,870     947     430     9,387  

  Preferred Member Units         4,881         4,881      

MH Corbin Holding LLC

  10% Secured Debt     1,409     13,869     28     700     13,197  

  Preferred Member Units     140     6,000             6,000  

NAPCO Precast, LLC

  Prime Plus 2.00% (Floor 7.00%)     283     4,005         1,292     2,713  

  18% Secured Debt     794     4,924         972     3,952  

  Member Units     687     8,590     2,330         10,920  

186


Table of Contents

Company
 
Investment(1)
  Amount of
Interest,
Fees or
Dividends
Credited to
Income(2)
  December 31,
2015
Fair Value
  Gross
Additions(3)
  Gross
Reductions(4)
  December 31,
2016
Fair Value
 

NRI Clinical Research, LLC

  LIBOR Plus 6.50% (Floor 1.50%)     8         200         200  

  14% Secured Debt     683     4,539     78     356     4,261  

  Warrants         340     340         680  

  Member Units         1,342     1,120         2,462  

OMi Holdings, Inc.

  Common Stock     480     13,640         560     13,080  

Pegasus Research Group, LLC

  Member Units     243     6,840     1,780         8,620  

River Aggregates, LLC

  Zero Coupon Secured Debt     71     556     71         627  

  Member Units     460     3,830     770         4,600  

  Member Units         2,360     150         2,510  

SoftTouch Medical Holdings LLC

  LIBOR Plus 9.00% (Floor 1.00%)     793     8,010     65     935     7,140  

  Member Units     397     5,710     3,460         9,170  

Other

                                   

Amounts related to investments transferred to or from other 1940 Act classification during the period

                             

      $ 52,221   $ 555,011   $ 150,323   $ 111,052   $ 594,282  

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Table of Contents

Company
 
Investment(1)
  Amount of
Interest,
Fee or
Dividends
Credited to
Income(2)
  December 31,
2015
Fair Value
  Gross
Additions(3)
  Gross
Reductions(4)
  December 31,
2016
Fair Value
 

Affiliate Investments

                                   

                                   

AFG Capital Group, LLC

  11% Secured Debt   $ 1,313   $ 12,790   $ 349   $ 13,139   $  

  Warrants         490     180         670  

  Member Units     40     2,020     730         2,750  

Barfly Ventures, LLC

  12% Secured Debt     1,053     4,042     1,818     33     5,827  

  Options             490         490  

  Warrants         473         193     280  

BBB Tank Services, LLC

  LIBOR Plus 9.50% (Floor 1.00%)     22         797         797  

  15% Secured Debt     439         3,991         3,991  

  Member Units             800         800  

Boss Industries, LLC

  Preferred Member Units     264     2,586     214         2,800  

Bridge Capital Solutions Corporation

  13% Secured Debt     1,293     6,890     5,720     7,000     5,610  

  Warrants         1,300     2,070         3,370  

  13% Secured Debt     73         1,000         1,000  

  Preferred Member Units     44         1,000         1,000  

Buca C, LLC

  LIBOR Plus 7.25% (Floor 1.00%)     2,087     25,299     531     3,159     22,671  

  Preferred Member Units     226     3,711     949         4,660  

CAI Software LLC

  12% Secured Debt     507     4,661     14     992     3,683  

  Member Units     102     1,000     1,480         2,480  

CapFusion, LLC

  13% Secured Debt     1,547         13,202         13,202  

  Warrants             1,200         1,200  

Chandler Signs Holdings, LLC

  12% Secured Debt     595         4,500         4,500  

  Class A Units     149         3,240         3,240  

Condit Exhibits, LLC

  Member Units     175     1,010     830         1,840  

Congruent Credit Opportunities

  LP Interests (Fund II)     400     2,834         1,316     1,518  

Funds

  LP Interests (Fund III)     1,115     12,024     4,157         16,181  

Daseke, Inc.

  12% Current / 2.5% PIK Secured Debt     3,252     21,253     629     83     21,799  

  Common Stock         22,660     1,403         24,063  

Dos Rios Partners

  LP Interests (Dos Rios Partners, LP)         2,031     2,894         4,925  

  LP Interests (Dos Rios Partners — A, LP)         648     918     122     1,444  

Dos Rios Stone Products LLC

  Class A Units     57         2,070           2,070  

East Teak Fine Hardwoods, Inc.

  Common Stock     41     860             860  

East West Copolymer &

  12% Current / 2% PIK Secured Debt     1,302     9,463     127     960     8,630  

Rubber, LLC

  Warrants         50         50      

EIG Fund Investments

  LP Interests     243     718     2,086         2,804  

EIG Traverse Co-Investment, L.P.

  LP Interests     1,175     4,755     5,150         9,905  

Freeport Financial Fund Investments

  LP Interests (Freeport Financial SBIC Fund LP)     398     6,045         425     5,620  

  LP Interests (Freeport First Lien Loan Fund III LP)     478     2,077     2,686         4,763  

Gault Financial, LLC (RMB

  10% Secured Debt     1,532     10,930     149         11,079  

Capital, LLC)

  Warrants                      

Glowpoint, Inc.

  8% Secured Debt     21     397     1     398      

  12% Secured Debt     1,125     8,929     22     4,954     3,997  

  Common Stock         3,840         1,760     2,080  

Guerdon Modular Holdings, Inc.

  9% Current / 4% PIK Secured Debt     1,463     10,280     1,274     960     10,594  

  Preferred Stock             1,140         1,140  

  Common Stock         1,990         1,910     80  

Hawk Ridge Systems, LLC

  10% Secured Debt     184         9,901         9,901  

  Preferred Member Units     28         2,850         2,850  

  Preferred Member Units             150         150  

Houston Plating and Coatings, LLC

  Member Units     (22 )   8,440     433     4,873     4,000  

I-45 SLF LLC

  Member Units     1,964     7,200     7,386         14,586  

Indianhead Pipeline Services, LLC

  12% Secured Debt     1,548     5,853     126     900     5,079  

  Preferred Member Units     37     2,302     375         2,677  

  Warrants                      

  Member Units                      

KBK Industries, LLC

  10% Secured Debt     51         1,550     300     1,250  

  12.5% Secured Debt     763     5,900     14     25     5,889  

  Member Units     (8 )   3,680         900     2,780  

L.F. Manufacturing Holdings, LLC

  Member Units         1,485         105     1,380  

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Table of Contents

Company
 
Investment(1)
  Amount of
Interest,
Fee or
Dividends
Credited to
Income(2)
  December 31,
2015
Fair Value
  Gross
Additions(3)
  Gross
Reductions(4)
  December 31,
2016
Fair Value
 

MPS Denver, LLC

  Member Units         1,130     124     1,254      

OnAsset Intelligence, Inc.

  12% PIK Secured Debt     512     4,006     513         4,519  

  Preferred Stock         1,380         1,380      

  Warrants                      

OPI International Ltd.

  10% Unsecured Debt     48     473             473  

  Common Stock         3,200         1,600     1,600  

PCI Holding Company, Inc.

  12% Secured Debt     1,354         13,000         13,000  

  Preferred Stock     617     4,887     617     134     5,370  

Radial Drilling Services Inc.

  12% Secured Debt     20     1,500     2,461     3,961      

  Warrants             758     758      

Rocaceia, LLC (Quality Lease and

  12% Secured Debt         250             250  

Rental Holdings, LLC)

  Preferred Member Units                      

Samba Holdings, Inc.

  12.5% Secured Debt     1,100     24,662     110     24,772      

  Common Stock         30,220         30,220      

Tin Roof Acquisition Company

  12% Secured Debt     1,735     13,807     62     484     13,385  

  Class C Preferred Stock     262     2,477     261         2,738  

UniTek Global Services, Inc.

  LIBOR Plus 7.50% (Floor 1.00%)     254     2,812     2,209         5,021  

  LIBOR Plus 8.50% (Floor 1.00%)     108     1,255     16     447     824  

  15% PIK Unsecured Debt     113     638     107         745  

  Preferred Stock     878     5,540     878     8     6,410  

  Common Stock             3,010         3,010  

Universal Wellhead Services

  Member Units             4,000     3,390     610  

Holdings, LLC

  Preferred Member Units         3,000     1,811     4,091     720  

Valley Healthcare Group, LLC

  LIBOR Plus 12.50% (Floor 0.50%)     1,519     10,297     2,647     100     12,844  

  Preferred Member Units             1,600         1,600  

Volusion, LLC

  11.5% Secured Debt     2,451     16,199         901     15,298  

  Preferred Member Units         14,000             14,000  

  Warrants         1,400     1,176         2,576  

Other

                                   

Amounts related to investments transferred to or from other 1940 Act classification during the period

        (345 )   (15,530 )            

      $ 37,702   $ 350,519   $ 127,956   $ 118,057   $ 375,948  

(1)
The principal amount, the ownership detail for equity investments and if the investment is income producing is included in the consolidated schedule of investments.

(2)
Represents the total amount of interest, fees and dividends credited to income for the portion of the period for which an investment was included in Control or Affiliate categories, respectively. For investments transferred between Control and Affiliate categories during the period, any income or investment balances related to the time period it was in the category other than the one shown at period end is included in "Amounts from investments transferred from other 1940 Act classifications during the period."

(3)
Gross additions include increases in the cost basis of investments resulting from new portfolio investments, follow-on investments and accrued PIK interest, and the exchange of one or more existing securities for one or more new securities. Gross additions also include net increases in unrealized appreciation or net decreases in net unrealized depreciation as well as the movement of an existing portfolio company into this category and out of a different category.

(4)
Gross reductions include decreases in the cost basis of investments resulting from principal repayments or sales and the exchange of one or more existing securities for one or more new securities. Gross reductions also include net increases in net unrealized depreciation or net decreases in unrealized appreciation as well as the movement of an existing portfolio company out of this category and into a different category.

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Table of Contents

Item 9.    Changes in and Disagreements with Accountants on Accounting and Financial Disclosure

       Not applicable.

Item 9A.    Controls and Procedures

       (a)  Evaluation of Disclosure Controls and Procedures.    As of the end of the period covered by this annual report on Form 10-K, our Chief Executive Officer, Chief Financial Officer, Chief Compliance Officer and Chief Accounting Officer conducted an evaluation of our disclosure controls and procedures (as defined in Rules 13a-15(e) of the Securities Exchange Act of 1934). Based upon this evaluation, our Chief Executive Officer, Chief Financial Officer, Chief Compliance Officer and Chief Accounting Officer concluded that our disclosure controls and procedures are effective to allow timely decisions regarding required disclosure of any material information relating to us that is required to be disclosed by us in the reports we file or submit under the Securities Exchange Act of 1934.

       (b)  Management's Report on Internal Control Over Financial Reporting.    The management of Main Street Capital Corporation and its subsidiaries (the Company) is responsible for establishing and maintaining adequate internal control over financial reporting, as such term is defined in Exchange Act Rules 13a-15(f). Under the supervision and with the participation of management, including the Chief Executive Officer and Chief Financial Officer, the Company conducted an evaluation of the effectiveness of the Company's internal control over financial reporting based on the criteria established in Internal Control — Integrated Framework issued by the Committee of Sponsoring Organizations of the Treadway Commission (COSO). Based on the Company's evaluation under the framework in Internal Control — Integrated Framework, management concluded that the Company's internal control over financial reporting was effective as of December 31, 2016. Grant Thornton, LLP, the Company's independent registered public accounting firm, has issued an attestation report on the effectiveness of the Company's internal control over financial reporting as of December 31, 2016, as stated in its report which is included herein.

       (c)  Attestation Report of the Registered Public Accounting Firm.    Our independent registered public accounting firm, Grant Thornton LLP, has issued an attestation report on the effectiveness of our internal control over financial reporting, which is set forth above under the heading "Reports of Independent Registered Public Accounting Firm" in Item 8.

       (d)  Changes in Internal Control over Financial Reporting.    There have been no changes in our internal control over financial reporting (as defined in Rule 13a-15(f) of the Securities Exchange Act of 1934) that occurred during our most recently completed fiscal quarter, that have materially affected, or are reasonably likely to materially affect, our internal control over financial reporting.

Item 9B.    Other Information

       None.

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PART III

Item 10.    Directors, Executive Officers and Corporate Governance

       The information required by this Item will be contained in the definitive proxy statement relating to our 2016 annual meeting of stockholders (the "Proxy Statement") under the headings "Election of Directors," "Corporate Governance," "Executive Officers" and "Section 16(a) Beneficial Ownership Reporting Compliance," to be filed with the Securities and Exchange Commission on or prior to April 30, 2017, and is incorporated herein by reference.

       We have adopted a code of business conduct and ethics that applies to directors, officers and employees of Main Street. This code of ethics is published on our Web site at www.mainstcapital.com. We intend to disclose any substantive amendments to, or waivers from, this code of conduct within four business days of the waiver or amendment through a Web site posting.

Item 11.    Executive Compensation

       The information required by this Item will be contained in the Proxy Statement under the headings "Compensation of Executive Officers," "Compensation of Directors," "Compensation Discussion and Analysis," "Compensation Committee Interlocks and Insider Participation" and "Compensation Committee Report," to be filed with the Securities and Exchange Commission on or prior to April 30, 2017, and is incorporated herein by reference.

Item 12.    Security Ownership of Certain Beneficial Owners and Management and Related Stockholder Matters

       The following table provides information regarding our equity compensation plans as of December 31, 2016:

Plan Category
  Number of Securities to be
Issued Upon Exercise of
Outstanding Options,
Warrants and Rights
  Weighted-Average Exercise
Price of Outstanding
Options, Warrants and
Rights
  Number of Securities
Remaining Available for
Future Issuance Under
Equity Compensation Plans
(Excluding Securities
Reflected in Column)(1)
 

Equity compensation plans approved by security holders

      $     3,025,032  

Equity compensation plans not approved by security holders

             

Total

      $     3,025,032  

(1)
All of our equity compensation plans have been approved by our stockholders. As of December 31, 2016, we had issued 275,620 shares of restricted stock pursuant to our current equity compensation plans, of which 7,106 shares had vested and 652 shares were forfeited. Pursuant to each of our equity compensation plans, if any award issued thereunder shall for any reason expire or otherwise terminate or be forfeited, in whole or in part, the shares of stock not acquired under such award shall revert to and again become available for issuance under such plan.

       The other information required by this Item will be contained in the Proxy Statement under the heading "Security Ownership of Certain Beneficial Owners and Management," to be filed with the Securities and Exchange Commission on or prior to April 30, 2017, and is incorporated herein by reference.

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Item 13.    Certain Relationships and Related Transactions, and Director Independence

       The information required by this Item will be contained in the Proxy Statement under the headings "Certain Relationships and Related Party Transactions" and "Corporate Governance," to be filed with the Securities and Exchange Commission on or prior to April 30, 2017, and is incorporated herein by reference.

Item 14.    Principal Accountant Fees and Services

       The information required by this Item will be contained in the Proxy Statement under the heading "Ratification of Appointment of Independent Registered Public Accounting Firm for Year Ending December 31, 2017," to be filed with the Securities and Exchange Commission on or prior to April 30, 2017, and is incorporated herein by reference.

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PART IV

Item 15.    Exhibits and Consolidated Financial Statement Schedules

       The following documents are filed or incorporated by reference as part of this Annual Report:

1.    Consolidated Financial Statements

Reports of Independent Registered Public Accounting Firm

    81  

Consolidated Balance Sheets as of December 31, 2016 and 2015

   
83
 

Consolidated Statements of Operations for the Years Ended December 31, 2016, 2015 and 2014

   
84
 

Consolidated Statements of Changes in Net Assets for the Years Ended December 31, 2016, 2015 and 2014

   
85
 

Consolidated Statements of Cash Flows for the Years Ended December 31, 2016, 2015 and 2014

   
86
 

Consolidated Schedules of Investments as of December 31, 2016 and 2015

   
87
 

Notes to Consolidated Financial Statements

   
140
 

2.    Consolidated Financial Statement Schedule

Report of Independent Registered Public Accounting Firm

    184  

Schedule of Investments in and Advances to Affiliates for the Year Ended December 31, 2016

   
185
 

3.    Exhibits

       The following exhibits are filed as part of this report or hereby incorporated by reference to exhibits previously filed with the SEC:

Exhibit
Number
 
Description
    3.1*   Articles of Amendment and Restatement of Main Street Capital Corporation (previously filed as Exhibit (a) to Main Street Capital Corporation's Pre-Effective Amendment No. 2 to the Registration Statement on Form N-2 filed on August 15, 2007 (Reg. No. 333-142879))

 

  3.2*

 

Amended and Restated Bylaws of Main Street Capital Corporation (previously filed as Exhibit 3.1 to Main Street Capital Corporation's Current Report on Form 8-K filed on March 6, 2013 (File No. 1-33723))

 

  4.1*

 

Form of Common Stock Certificate (previously filed as Exhibit (d) to Main Street Capital Corporation's Pre-Effective Amendment No. 2 to the Registration Statement on Form N-2 filed on August 15, 2007 (Reg. No. 333-142879))

 

  4.2*

 

Dividend Reinvestment Plan (previously filed as Exhibit (e) to Main Street Capital Corporation's Post-Effective Amendment No. 8 to the Registration Statement on Form N-2 filed on May 7, 2014 (Reg. No. 333-183555))

 

  4.3*

 

Main Street Mezzanine Fund, LP SBIC debentures guaranteed by the SBA (previously filed as Exhibit (f)(1) to Main Street Capital Corporation's Pre-Effective Amendment No. 1 to the Registration Statement on Form N-2 filed on June 22, 2007 (Reg. No. 333-142879))

 

  4.4*

 

Main Street Capital II, LP SBIC debentures guaranteed by the SBA (see Exhibit (f)(1) to Pre-Effective Amendment No. 1 to Form N-2 of Main Street Capital Corporation filed with the SEC on June 22, 2007 for a substantially identical copy of the form of debentures)

 

  4.5*

 

Main Street Capital III, LP SBIC debentures guaranteed by the SBA (see Exhibit (f)(1) to Pre-Effective Amendment No. 1 to Form N-2 of Main Street Capital Corporation filed with the SEC on June 22, 2007 for a substantially identical copy of the form of debentures)

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Exhibit
Number
 
Description

 

  4.6*

 

Form of Indenture between Main Street Capital Corporation and The Bank of New York Mellon Trust Company, N.A. (previously filed as Exhibit (d)(6) to Main Street Capital Corporation's Post-Effective Amendment No. 2 to the Registration Statement on Form N-2 filed on March 28, 2013 (Reg. No. 333-183555))

 

  4.7*

 

Form of First Supplemental Indenture relating to the 6.125% Notes due 2023, between Main Street Capital Corporation and The Bank of New York Mellon Trust Company, N.A. (previously filed as Exhibit (d)(8) to Main Street Capital Corporation's Post-Effective Amendment No. 2 to the Registration Statement on Form N-2 filed on March 28, 2013 (Reg. No. 333-183555))

 

  4.8*

 

Form of 6.125% Notes due 2023 (incorporated by reference to Exhibit 4.7)

 

  4.9*

 

Form of Second Supplemental Indenture relating to the 4.50% Notes due 2019, between Main Street Capital Corporation and The Bank of New York Mellon Trust Company, N.A. (previously filed as Exhibit (d)(10) to Main Street Capital Corporation's Post-Effective Amendment No. 9 to the Registration Statement on Form N-2 filed on November 4, 2014 (Reg. No. 333-183555))

 

4.10*

 

Form of 4.50% Notes due 2019 (incorporated by reference to Exhibit 4.9)

 

10.1*

 

Second Amended and Restated Credit Agreement dated September 27, 2013 (previously filed as Exhibit 10.1 to Main Street Capital Corporation's Current Report on Form 8-K filed on October 1, 2013 (File No. 1-33723))

 

10.2*

 

Second Amended and Restated General Security Agreement dated September 27, 2013 (previously filed as Exhibit 10.2 to Main Street Capital Corporation's Current Report on Form 8-K filed on October 1, 2013 (File No. 1-33723))

 

10.3*

 

Second Amended and Restated Equity Pledge Agreement dated September 27, 2013 (previously filed as Exhibit 10.3 to Main Street Capital Corporation's Current Report on Form 8-K filed on October 1, 2013 (File No. 1-33723))

 

10.4*

 

Amended and Restated Custodial Agreement dated September 20, 2010 (previously filed as Exhibit 10.3 to Main Street Capital Corporation's Current Report on Form 8-K filed September 21, 2010 (File No. 1-33723))

 

10.5*

 

Third Amendment to Amended and Restated Credit Agreement and First Amendment to Amended and Restated Custodial Agreement dated November 21, 2011 (previously filed as Exhibit 10.1 to Main Street Capital Corporation's Current Report on Form 8-K filed November 22, 2011 (File No. 1-33723))

 

10.6*

 

First Amendment to Second Amended and Restated Credit Agreement dated June 27, 2014 (previously filed as Exhibit 10.1 to Main Street Capital Corporation's Current Report on Form 8-K filed on July 1, 2014 (File No. 1-33723))

 

10.7*

 

Second Amendment to Second Amended and Restated Credit Agreement dated September 25, 2014 (previously filed as Exhibit 10.1 to Main Street Capital Corporation's Current Report on Form 8-K filed on September 30, 2014 (File No. 1-33723))

 

10.8*

 

Third Amendment to Second Amended and Restated Credit Agreement dated October 22, 2014 (previously filed as Exhibit (k)(6) to Main Street Capital Corporation's Post-Effective Amendment No. 9 to the Registration Statement on Form N-2 filed on November 4, 2014 (Reg. No. 333-183555))

 

10.9*

 

Supplement and Joinder Agreement dated December 11, 2014 (previously filed as Exhibit 10.1 to Main Street Capital Corporation's Current Report on Form 8-K filed on December 12, 2014 (File No. 1-33723))

 

10.10*

 

Fourth Amendment to Second Amended and Restated Credit Agreement dated April 29, 2015 (previously filed as Exhibit 10.1 to Main Street Capital Corporation's Current Report on Form 8-K filed on April 30, 2015 (File No. 1-33723))

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Exhibit
Number
 
Description

 

10.11*

 

Fifth Amendment to Second Amended and Restated Credit Agreement and First Amendment to Security Agreement dated November 20, 2015 (previously filed as Exhibit 10.1 to Main Street Capital Corporation's Current Report on Form 8-K filed on November 24, 2015 (File No. 1-33723))

 

10.12*

 

Sixth Amendment to Second Amended and Restated Credit Agreement dated October 31, 2016 (previously filed as Exhibit 10.1 to Main Street Capital Corporation's Current Report on Form 8-K filed on November 1, 2016 (File No. 1-33723))

 

10.13*†

 

Main Street Capital Corporation 2015 Equity and Incentive Plan (previously filed as Exhibit 4.4 to Main Street Capital Corporation's Registration Statement on Form S-8 filed on May 5, 2015 (Reg. No. 333-203893))

 

10.14*†

 

Main Street Capital Corporation 2015 Non-Employee Director Restricted Stock Plan (previously filed as Exhibit 4.5 to Main Street Capital Corporation's Registration Statement on Form S-8 filed on May 5, 2015 (Reg. No. 333-203893))

 

10.15*†

 

Form of Restricted Stock Agreement for Executive Officers — Main Street Capital Corporation 2015 Equity and Incentive Plan (previously filed as Exhibit 4.6 to Main Street Capital Corporation's Registration Statement on Form S-8 filed on May 5, 2015 (Reg. No. 333-203893))

 

10.16*†

 

Form of Restricted Stock Agreement for Non-Employee Directors — Main Street Capital Corporation 2015 Non-Employee Director Restricted Stock Plan (previously filed as Exhibit 4.7 to Main Street Capital Corporation's Registration Statement on Form S-8 filed on May 5, 2015 (Reg. No. 333-203893))

 

10.17*

 

Custodian Agreement (previously filed as Exhibit (j) to Main Street Capital Corporation's Pre-Effective Amendment No. 3 to the Registration Statement on Form N-2 filed on September 21, 2007 (Reg. No. 333-142879))

 

10.18*†

 

Form of Confidentiality and Non-Compete Agreement by and between Main Street Capital Corporation and Vincent D. Foster (previously filed as Exhibit (k)(12) to Main Street Capital Corporation's Pre-Effective Amendment No. 3 to the Registration Statement on Form N-2 filed on September 21, 2007 (Reg. No. 333-142879))

 

10.19*†

 

Form of Indemnification Agreement by and between Main Street Capital Corporation and each executive officer and director (previously filed as Exhibit (k)(13) to Main Street Capital Corporation's Pre-Effective Amendment No. 3 to the Registration Statement on Form N-2 filed on September 21, 2007 (Reg. No. 333-142879))

 

10.20*

 

Investment Sub-Advisory Agreement dated May 31, 2012 by and among HMS Adviser, LP, Main Street Capital Partners, LLC, Main Street Capital Corporation and HMS Income Fund, Inc. (previously filed as Exhibit (g)(2) to HMS Income Fund, Inc.'s Pre-Effective Amendment No. 3 to the Registration Statement on Form N-2 filed on May 31, 2012 (Reg. No. 333-178548))

 

10.21*

 

Assignment and Assumption of Investment Sub-Advisory Agreement dated December 31, 2013 by and among MSC Adviser I, LLC, HMS Adviser, LP, Main Street Capital Partners, LLC, Main Street Capital Corporation and HMS Income Fund, Inc. (previously filed as Exhibit 10.14 to Main Street Capital Corporation's Annual Report on Form 10-K for the year ended December 31, 2013 filed on February 28, 2014 (File No. 1-33723))

 

10.22*†

 

Main Street Capital Corporation Deferred Compensation Plan Adoption Agreement and Plan Document (previously filed as Exhibit 4.1 to Main Street Capital Corporation's Registration Statement on Form S-8 filed on December 18, 2015 (File No. 333-208643))

 

10.23*

 

Form of Equity Distribution Agreement dated November 18, 2016 (previously filed as Exhibit (h)(3) to Main Street Capital Corporation's Post-Effective Amendment No. 7 to the Registration Statement on Form N-2 filed on November 18, 2016 (Reg. No. 333-203147))

 

12.1

 

Computation of Ratios of Earnings to Fixed Charges

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Exhibit
Number
 
Description

 

14.1*

 

Code of Business Conduct and Ethics (previously filed as Exhibit 14.1 to Main Street Capital Corporation's Quarterly Report on Form 10-Q for the quarter ended September 30, 2016 filed on November 4, 2016 (File No. 1-33723))

 

21.1

 

List of Subsidiaries

 

23.1

 

Consent of Grant Thornton, LLP, independent registered public accounting firm

 

31.1

 

Rule 13a - 14(a)/15d - 14(a) certification of Chief Executive Officer

 

31.2

 

Rule 13a - 14(a)/15d - 14(a) certification of Chief Financial Officer

 

32.1

 

Section 1350 certification of Chief Executive Officer

 

32.2

 

Section 1350 certification of Chief Financial Officer

*
Exhibit previously filed with the Securities and Exchange Commission, as indicated, and incorporated herein by reference.

Management contract or compensatory plan or arrangement.

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SIGNATURES

       Pursuant to the requirements of Section 13 or 15(d) of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

    MAIN STREET CAPITAL CORPORATION

 

 

By:

 

/s/ VINCENT D. FOSTER

Vincent D. Foster
Chairman and Chief Executive Officer

Date: February 24, 2017

       Pursuant to the requirements of the Securities Exchange Act of 1934, this report has been signed below by the following persons on behalf of the registrant and in the capacities and on the dates indicated.

Signature
 
Title
 
Date

 

 

 

 

 
/s/ VINCENT D. FOSTER

Vincent D. Foster
  Chairman and Chief Executive Officer
(principal executive officer)
  February 24, 2017

/s/ BRENT D. SMITH

Brent D. Smith

 

Chief Financial Officer and Treasurer
(principal financial officer)

 

February 24, 2017

/s/ SHANNON D. MARTIN

Shannon D. Martin

 

Vice President, Chief Accounting Officer
(principal accounting officer)

 

February 24, 2017

/s/ JOSEPH E. CANON

Joseph E. Canon

 

Director

 

February 24, 2017

/s/ MICHAEL APPLING JR.

Michael Appling Jr.

 

Director

 

February 24, 2017

/s/ ARTHUR L. FRENCH

Arthur L. French

 

Director

 

February 24, 2017

/s/ J. KEVIN GRIFFIN

J. Kevin Griffin

 

Director

 

February 24, 2017

/s/ JOHN E. JACKSON

John E. Jackson

 

Director

 

February 24, 2017

/s/ BRIAN E. LANE

Brian E. Lane

 

Director

 

February 24, 2017

/s/ STEVEN B. SOLCHER

Steven B. Solcher

 

Director

 

February 24, 2017

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EXHIBIT INDEX

Exhibit
Number
 
Description
12.1   Computation of Ratio of Earnings to Fixed Charges
21.1   List of Subsidiaries
23.1   Consent of Grant Thornton LLP, independent registered public accounting firm
31.1   Rule 13a - 14(a)/15d - 14(a) certification of Chief Executive Officer
31.2   Rule 13a - 14(a)/15d - 14(a) certification of Chief Financial Officer
32.1   Section 1350 certification of Chief Executive Officer
32.2   Section 1350 certification of Chief Financial Officer