<?xml version="1.0" encoding="UTF-8" ?><!-- Generated on Wed, 08 Apr 2026 14:52:31 -0400--><rss version="2.0">
    <channel>
        <title>Main Street Capital Corporation (MAIN) SEC Filings</title>
        <link>https://www.mainstcapital.com/investors/sec-filings/quarterly-reports/rss</link>
        <description>Main Street Capital Corporation (MAIN) - Quarterly Reports</description>
        <language>en-us</language>
                                            <image>
                <url>https://d1io3yog0oux5.cloudfront.net/mainstcapital/files/theme/images/logo-sm.png</url>
                <title>Main Street Capital Corporation Logo</title>
                <link>/investors</link>
            </image>
                <generator>Equisolve Investor Relations Suite</generator>
        
                            <item>
                <title><![CDATA[10-Q - Quarterly report [Sections 13 or 15(d)]]]></title>
                <description><![CDATA[5 Related Documents: 10-Q, EX-31.1, EX-31.2, EX-32.1, EX-32.2]]></description>
                <link>https://www.mainstcapital.com/investors/sec-filings/all-sec-filings/content/0001396440-25-000184/0001396440-25-000184.pdf</link>
                <pubDate>Fri, 07 Nov 25 11:40:35 -0500</pubDate>
                <guid isPermalink="true">https://www.mainstcapital.com/investors/sec-filings/all-sec-filings/content/0001396440-25-000184/0001396440-25-000184.pdf</guid>
                                                                            </item>
                    <item>
                <title><![CDATA[10-Q - Quarterly report [Sections 13 or 15(d)]]]></title>
                <description><![CDATA[5 Related Documents: 10-Q, EX-31.1, EX-31.2, EX-32.1, EX-32.2]]></description>
                <link>https://www.mainstcapital.com/investors/sec-filings/all-sec-filings/content/0001396440-25-000102/0001396440-25-000102.pdf</link>
                <pubDate>Fri, 08 Aug 25 11:05:09 -0400</pubDate>
                <guid isPermalink="true">https://www.mainstcapital.com/investors/sec-filings/all-sec-filings/content/0001396440-25-000102/0001396440-25-000102.pdf</guid>
                                                                            </item>
                    <item>
                <title><![CDATA[10-Q - Quarterly report [Sections 13 or 15(d)]]]></title>
                <description><![CDATA[5 Related Documents: 10-Q, EX-31.1, EX-31.2, EX-32.1, EX-32.2]]></description>
                <link>https://www.mainstcapital.com/investors/sec-filings/all-sec-filings/content/0001396440-25-000068/0001396440-25-000068.pdf</link>
                <pubDate>Fri, 09 May 25 10:57:34 -0400</pubDate>
                <guid isPermalink="true">https://www.mainstcapital.com/investors/sec-filings/all-sec-filings/content/0001396440-25-000068/0001396440-25-000068.pdf</guid>
                                                                            </item>
                    <item>
                <title><![CDATA[10-Q - Quarterly report pursuant to Section 13 or 15(d)]]></title>
                <description><![CDATA[5 Related Documents: 10-Q, EX-31.1, EX-31.2, EX-32.1, EX-32.2]]></description>
                <link>https://www.mainstcapital.com/investors/sec-filings/all-sec-filings/content/0001396440-24-000236/0001396440-24-000236.pdf</link>
                <pubDate>Fri, 08 Nov 24 11:14:57 -0500</pubDate>
                <guid isPermalink="true">https://www.mainstcapital.com/investors/sec-filings/all-sec-filings/content/0001396440-24-000236/0001396440-24-000236.pdf</guid>
                                                                            </item>
                    <item>
                <title><![CDATA[10-Q - Quarterly report pursuant to Section 13 or 15(d)]]></title>
                <description><![CDATA[5 Related Documents: 10-Q, EX-31.1, EX-31.2, EX-32.1, EX-32.2]]></description>
                <link>https://www.mainstcapital.com/investors/sec-filings/all-sec-filings/content/0001396440-24-000154/0001396440-24-000154.pdf</link>
                <pubDate>Fri, 09 Aug 24 10:59:04 -0400</pubDate>
                <guid isPermalink="true">https://www.mainstcapital.com/investors/sec-filings/all-sec-filings/content/0001396440-24-000154/0001396440-24-000154.pdf</guid>
                                                                            </item>
                    <item>
                <title><![CDATA[10-Q - Quarterly report pursuant to Section 13 or 15(d)]]></title>
                <description><![CDATA[5 Related Documents: 10-Q, EX-31.1, EX-31.2, EX-32.1, EX-32.2]]></description>
                <link>https://www.mainstcapital.com/investors/sec-filings/all-sec-filings/content/0001396440-24-000082/0001396440-24-000082.pdf</link>
                <pubDate>Fri, 10 May 24 11:07:35 -0400</pubDate>
                <guid isPermalink="true">https://www.mainstcapital.com/investors/sec-filings/all-sec-filings/content/0001396440-24-000082/0001396440-24-000082.pdf</guid>
                                                                            </item>
                    <item>
                <title><![CDATA[10-Q - Quarterly report pursuant to Section 13 or 15(d)]]></title>
                <description><![CDATA[5 Related Documents: 10-Q, EX-31.1, EX-31.2, EX-32.1, EX-32.2]]></description>
                <link>https://www.mainstcapital.com/investors/sec-filings/all-sec-filings/content/0001396440-23-000140/0001396440-23-000140.pdf</link>
                <pubDate>Fri, 03 Nov 23 11:05:44 -0400</pubDate>
                <guid isPermalink="true">https://www.mainstcapital.com/investors/sec-filings/all-sec-filings/content/0001396440-23-000140/0001396440-23-000140.pdf</guid>
                                                                            </item>
                    <item>
                <title><![CDATA[10-Q - Quarterly report pursuant to Section 13 or 15(d)]]></title>
                <description><![CDATA[6 Related Documents: 10-Q, EX-10.1, EX-31.1, EX-31.2, EX-32.1, EX-32.2]]></description>
                <link>https://www.mainstcapital.com/investors/sec-filings/all-sec-filings/content/0001396440-23-000102/0001396440-23-000102.pdf</link>
                <pubDate>Fri, 04 Aug 23 11:10:17 -0400</pubDate>
                <guid isPermalink="true">https://www.mainstcapital.com/investors/sec-filings/all-sec-filings/content/0001396440-23-000102/0001396440-23-000102.pdf</guid>
                                                                            </item>
                    <item>
                <title><![CDATA[10-Q - Quarterly report pursuant to Section 13 or 15(d)]]></title>
                <description><![CDATA[5 Related Documents: 10-Q, EX-31.1, EX-31.2, EX-32.1, EX-32.2]]></description>
                <link>https://www.mainstcapital.com/investors/sec-filings/all-sec-filings/content/0001396440-23-000067/0001396440-23-000067.pdf</link>
                <pubDate>Fri, 05 May 23 11:17:56 -0400</pubDate>
                <guid isPermalink="true">https://www.mainstcapital.com/investors/sec-filings/all-sec-filings/content/0001396440-23-000067/0001396440-23-000067.pdf</guid>
                                                                            </item>
                    <item>
                <title><![CDATA[10-Q - Quarterly report pursuant to Section 13 or 15(d)]]></title>
                <description><![CDATA[5 Related Documents: 10-Q, EX-31.1, EX-31.2, EX-32.1, EX-32.2]]></description>
                <link>https://www.mainstcapital.com/investors/sec-filings/all-sec-filings/content/0001396440-22-000034/0001396440-22-000034.pdf</link>
                <pubDate>Fri, 04 Nov 22 11:14:13 -0400</pubDate>
                <guid isPermalink="true">https://www.mainstcapital.com/investors/sec-filings/all-sec-filings/content/0001396440-22-000034/0001396440-22-000034.pdf</guid>
                                                                            </item>
            </channel>
</rss>