Dwayne Hyzak

Member of the Board and Chief Executive Officer

Dwayne Hyzak

Dwayne Hyzak

Member of the Board and Chief Executive Officer

Phone: 713-350-6013

Email: dhyzak@mainstcapital.com

Location: Houston, Texas

Mr. Hyzak has served as Main Street’s Chief Executive Officer since November 2018 and as a member of our Board since January 2018. Mr. Hyzak also serves as a member of our management team’s executive and investment committees. Mr. Hyzak previously served in several executive roles from 2011 to 2018, including as our President (2015 until November 2018), Chief Operating Officer (2014 until November 2018), Chief Financial Officer (2011 until 2014) and Senior Managing Director since 2011 and also served in other senior executive positions at Main Street prior to 2011. Prior to our IPO in 2007, Mr. Hyzak served as a Senior Managing Director and other executive positions of several Main Street predecessor funds and entities, which are now our subsidiaries. Mr. Hyzak joined Main Street in 2002, becoming one of the founding members of the firm. Since October 2020, Mr. Hyzak has also served as the Chief Executive Officer and Chairman of the Board of MSC Income. Prior to joining Main Street, Mr. Hyzak was a Director of Integration with Quanta Services, Inc. (NYSE: PWR), which provides specialty contracting services to the power, natural gas and telecommunications industries, where he was principally focused on the company’s mergers and acquisitions and corporate finance activities. Previously, Mr. Hyzak was a Manager with Arthur Andersen in its Transaction Advisory Services group. Mr. Hyzak currently serves on the board of directors of Child Advocates, a non-profit organization that trains and supports advocates to serve the interests of abused or neglected children in the greater Houston area.

David Magdol

President and Chief Investment Officer

David Magdol

David Magdol

President and Chief Investment Officer

Phone: 713-350-6009

Email: dmagdol@mainstcapital.com

Location: Houston, Texas

David Magdol is our President and Chief Investment Officer. Mr. Magdol also serves as a member of our management team’s executive and investment committees. He was promoted to the role of President in November 2018 and has served as Chief Investment Officer since 2011. Previously, he also served as Vice Chairman and Senior Managing Director and in other senior executive positions at Main Street. Prior to our IPO in 2007, Mr. Magdol served as a Senior Managing Director and other executive positions of several Main Street predecessor funds and entities, which are now our subsidiaries. Mr. Magdol joined Main Street in 2002, becoming one of the founding members of the firm. Since October 2020, Mr. Magdol has also served as the President and Chief Investment Officer of MSC Income. Prior to joining Main Street, Mr. Magdol was a Vice President in the investment banking group at Lazard Freres & Co. Previously, he managed a portfolio of private equity investments for the McMullen Group, a private investment firm/family office capitalized by Dr. John J. McMullen, the former owner of the New Jersey Devils and the Houston Astros. Mr. Magdol began his career in the structured finance services group of JP Morgan Chase.

Jesse Morris

Executive Vice President, Chief Financial Officer and Chief Operating Officer

Jesse Morris

Jesse Morris

Executive Vice President, Chief Financial Officer and Chief Operating Officer

Phone: 713-350-9221

Email: jmorris@mainstcapital.com

Location: Houston, Texas

Jesse Morris is our Executive Vice President, Chief Financial Officer and Chief Operating Officer. Mr. Morris also serves as a member of our management team’s executive committee. He has management responsibility over the firm’s finance, treasury and internal operations. He is also a Senior Managing Director on our lower middle market investment team where his responsibilities include managing a portfolio of lower middle market investments where he is an active board member and assists those companies with various strategic initiatives, capital raises and M&A activity. Mr. Morris is also responsible for originating and executing on new investments for the firm. Mr. Morris has served as our Executive Vice President and Chief Operating Officer since joining Main Street in 2019 and as Chief Financial Officer since 2021. Since October 2020, Mr. Morris has also served as the Executive Vice President and Chief Operating Officer of MSC Income and as Chief Financial Officer of MSC Income since 2021. Prior to joining Main Street, Mr. Morris served in various roles of increasing responsibility with Quanta Services, Inc. (NYSE: PWR) from 2014 to 2019, including most recently as Executive Vice President – Finance and President – Infrastructure Solutions. In this position, he oversaw the accounting, treasury, tax and financial planning and analysis activities and led Quanta’s public-private partnership (P3) concession and private infrastructure investment activities. Prior to joining Quanta, Mr. Morris served in various financial and accounting positions of increasing responsibility with Sysco Corporation (NYSE:SYY) including as Vice President and Chief Financial Officer – Foodservice Operations and Vice President of Finance and Chief Financial Officer – Broadline Operations. Mr. Morris began his career as a certified public accountant and was an Experienced Manager with Arthur Andersen.

Jason Beauvais

Executive Vice-President, General Counsel, Chief Compliance Officer and Secretary

Jason Beauvais

Jason Beauvais

Executive Vice-President, General Counsel, Chief Compliance Officer and Secretary

Phone: 713-350-6043

Email: jbeauvais@mainstcapital.com

Location: Houston, Texas

Jason Beauvais is our Executive Vice President, General Counsel, Chief Compliance Officer and Secretary. Mr. Beauvais also serves as a member of our management team’s executive committee. He has management responsibility over the firm’s legal, compliance, human resources and technology functions. Mr. Beauvais has served as General Counsel and Secretary since joining the firm in 2008, as Chief Compliance Officer since 2012 and as Executive Vice President since 2021. Since October 2020, Mr. Beauvais has also served as General Counsel and Secretary of MSC Income and as Executive Vice President since 2021. In addition, he is a member of the Board of Directors of the Houston Arboretum & Nature Center, a non-profit urban nature sanctuary. Prior to joining Main Street, Mr. Beauvais was an attorney with Occidental Petroleum Corporation (NYSE: OXY), an international oil and gas exploration and production company. Before that, Mr. Beauvais practiced corporate and securities law at Baker Botts L.L.P., where he primarily counseled companies in public issuances and private placements of debt and equity and handled a wide range of general corporate and securities matters as well as mergers and acquisitions.