Main Street Capital CORP SEC filings MAIN
Main Street Capital CORP has 1,000 filings in SEC EDGAR's recent list, going back to Oct 19, 2021. Its latest annual report, Form 10-K, was filed on Feb 27, 2026 for the period ended Dec 31, 2025. The latest quarterly report (Form 10-Q) was filed on Aug 7, 2026, covering the quarter ended Jun 30, 2026. The most recent current report (Form 8-K) was filed on Nov 5, 2026 (results of operations). The company's fiscal year ends on December 31.
| Form | Description | Filed | Period |
|---|---|---|---|
| SCHEDULE 13D | Ownership over 5% (active) | Nov 4, 2026 | — |
| 4 | Insider transaction | Oct 20, 2026 | Sep 15, 2026 |
| 4 | Insider transaction | Oct 20, 2026 | Sep 15, 2026 |
| 4 | Insider transaction | Oct 20, 2026 | Sep 15, 2026 |
| 4 | Insider transaction | Oct 20, 2026 | Sep 15, 2026 |
| 4 | Insider transaction | Oct 20, 2026 | Sep 15, 2026 |
| 4 | Insider transaction | Oct 20, 2026 | Sep 15, 2026 |
| 4 | Insider transaction | Oct 20, 2026 | Sep 15, 2026 |
| 4 | Insider transaction | Oct 20, 2026 | Sep 15, 2026 |
| 4 | Insider transaction | Oct 20, 2026 | Sep 15, 2026 |
| 4 | Insider transaction | Oct 20, 2026 | Sep 15, 2026 |
| 4 | Insider transaction | Sep 15, 2026 | Aug 14, 2026 |
| 4 | Insider transaction | Sep 15, 2026 | Aug 14, 2026 |
| 4 | Insider transaction | Sep 15, 2026 | Aug 14, 2026 |
| 4 | Insider transaction | Sep 15, 2026 | Aug 14, 2026 |
| 4 | Insider transaction | Sep 15, 2026 | Aug 14, 2026 |
| 4 | Insider transaction | Sep 15, 2026 | Aug 14, 2026 |
| 4 | Insider transaction | Sep 15, 2026 | Aug 14, 2026 |
| 4 | Insider transaction | Sep 15, 2026 | Aug 14, 2026 |
| 4 | Insider transaction | Sep 15, 2026 | Aug 14, 2026 |
| 4 | Insider transaction | Sep 3, 2026 | Sep 2, 2026 |
| 4 | Insider transaction | Aug 24, 2026 | Aug 21, 2026 |
| 144 | Notice of proposed sale | Aug 21, 2026 | — |
| 4 | Insider transaction | Aug 14, 2026 | Jun 15, 2026 |
| 4 | Insider transaction | Aug 14, 2026 | Jun 15, 2026 |
| 4 | Insider transaction | Aug 14, 2026 | Jun 15, 2026 |
| 4 | Insider transaction | Aug 14, 2026 | Aug 13, 2026 |
| 4 | Insider transaction | Aug 14, 2026 | Jun 15, 2026 |
| 4 | Insider transaction | Aug 14, 2026 | Jun 15, 2026 |
| 4 | Insider transaction | Aug 14, 2026 | Jun 15, 2026 |
| 4 | Insider transaction | Aug 14, 2026 | Jun 15, 2026 |
| 4 | Insider transaction | Aug 14, 2026 | Jun 15, 2026 |
| 4 | Insider transaction | Aug 14, 2026 | Jun 15, 2026 |
| 4 | Insider transaction | Jun 30, 2026 | Jun 30, 2026 |
| 144 | Notice of proposed sale | Jun 30, 2026 | — |
| 4 | Insider transaction | May 28, 2026 | May 15, 2026 |
| 4 | Insider transaction | May 28, 2026 | May 15, 2026 |
| 4 | Insider transaction | May 28, 2026 | May 15, 2026 |
| 4 | Insider transaction | May 28, 2026 | May 15, 2026 |
| 4 | Insider transaction | May 28, 2026 | May 15, 2026 |
| 4 | Insider transaction | May 28, 2026 | May 15, 2026 |
| 4 | Insider transaction | May 28, 2026 | May 15, 2026 |
| 4 | Insider transaction | May 28, 2026 | May 15, 2026 |
| 4 | Insider transaction | May 28, 2026 | May 15, 2026 |
| 4 | Insider transaction | May 20, 2026 | May 18, 2026 |
| 4 | Insider transaction | May 6, 2026 | Apr 15, 2026 |
| 4 | Insider transaction | May 6, 2026 | Apr 15, 2026 |
| 4 | Insider transaction | May 6, 2026 | May 4, 2026 |
| 4 | Insider transaction | May 6, 2026 | May 4, 2026 |
| 4 | Insider transaction | May 6, 2026 | May 4, 2026 |
| 4 | Insider transaction | May 6, 2026 | Apr 15, 2026 |
| 4 | Insider transaction | May 6, 2026 | May 4, 2026 |
| 4 | Insider transaction | May 6, 2026 | May 4, 2026 |
| 4 | Insider transaction | May 6, 2026 | May 4, 2026 |
| 4 | Insider transaction | May 6, 2026 | Apr 15, 2026 |
| 4 | Insider transaction | Apr 3, 2026 | Mar 13, 2026 |
| 4 | Insider transaction | Apr 3, 2026 | Mar 13, 2026 |
| 4 | Insider transaction | Apr 3, 2026 | Apr 1, 2026 |
| 4 | Insider transaction | Apr 3, 2026 | Mar 13, 2026 |
| 4 | Insider transaction | Apr 3, 2026 | Apr 1, 2026 |
| 4 | Insider transaction | Apr 3, 2026 | Mar 13, 2026 |
| 4 | Insider transaction | Apr 3, 2026 | Mar 13, 2026 |
| 4 | Insider transaction | Apr 3, 2026 | Mar 13, 2026 |
| 4 | Insider transaction | Apr 3, 2026 | Apr 1, 2026 |
| 4 | Insider transaction | Apr 3, 2026 | Apr 1, 2026 |
| 4 | Insider transaction | Apr 3, 2026 | Apr 1, 2026 |
| 4 | Insider transaction | Apr 3, 2026 | Apr 1, 2025 |
| 4 | Insider transaction | Apr 3, 2026 | Apr 1, 2026 |
| 4 | Insider transaction | Mar 11, 2026 | Feb 13, 2026 |
| 4 | Insider transaction | Mar 11, 2026 | Feb 13, 2026 |
| 4 | Insider transaction | Mar 11, 2026 | Feb 13, 2026 |
| 4 | Insider transaction | Mar 11, 2026 | Feb 13, 2026 |
| 4 | Insider transaction | Mar 11, 2026 | Feb 13, 2026 |
| 4 | Insider transaction | Mar 11, 2026 | Feb 13, 2026 |
| 4 | Insider transaction | Mar 11, 2026 | Feb 13, 2026 |
| 4 | Insider transaction | Mar 11, 2026 | Feb 13, 2026 |
| 4 | Insider transaction | Mar 11, 2026 | Feb 13, 2026 |
| 4 | Insider transaction | Mar 11, 2026 | Feb 13, 2026 |
| 4 | Insider transaction | Feb 13, 2026 | Jan 15, 2026 |
| 4 | Insider transaction | Feb 13, 2026 | Jan 15, 2026 |
| 4 | Insider transaction | Feb 13, 2026 | Jan 15, 2026 |
| 4 | Insider transaction | Feb 13, 2026 | Jan 15, 2026 |
| 4 | Insider transaction | Feb 13, 2026 | Jan 15, 2026 |
| 4 | Insider transaction | Feb 13, 2026 | Jan 15, 2026 |
| 4 | Insider transaction | Feb 13, 2026 | Jan 15, 2026 |
| 4 | Insider transaction | Feb 13, 2026 | Jan 15, 2026 |
| 4 | Insider transaction | Feb 13, 2026 | Jan 15, 2026 |
| 4 | Insider transaction | Feb 13, 2026 | Jan 15, 2026 |
| 4 | Insider transaction | Jan 13, 2026 | Dec 15, 2025 |
| 4 | Insider transaction | Jan 13, 2026 | Dec 15, 2025 |
| 4 | Insider transaction | Jan 13, 2026 | Dec 15, 2025 |
| 4 | Insider transaction | Jan 13, 2026 | Dec 15, 2025 |
| 4 | Insider transaction | Jan 13, 2026 | Dec 15, 2025 |
| 4 | Insider transaction | Jan 13, 2026 | Dec 15, 2025 |
| 4 | Insider transaction | Jan 13, 2026 | Dec 15, 2025 |
| 4 | Insider transaction | Jan 13, 2026 | Dec 15, 2025 |
| 4 | Insider transaction | Jan 13, 2026 | Dec 15, 2025 |
| 4 | Insider transaction | Jan 13, 2026 | Dec 15, 2025 |
| 4 | Insider transaction | Dec 5, 2025 | Nov 14, 2025 |
| 4 | Insider transaction | Dec 5, 2025 | Nov 14, 2025 |
| 4 | Insider transaction | Dec 5, 2025 | Nov 14, 2025 |
| 4 | Insider transaction | Dec 5, 2025 | Nov 14, 2025 |
| 4 | Insider transaction | Dec 5, 2025 | Nov 14, 2025 |
| 4 | Insider transaction | Dec 5, 2025 | Nov 14, 2025 |
| 4 | Insider transaction | Dec 5, 2025 | Nov 14, 2025 |
| 4 | Insider transaction | Dec 5, 2025 | Nov 14, 2025 |
| 4 | Insider transaction | Dec 5, 2025 | Nov 14, 2025 |
| 4 | Insider transaction | Dec 5, 2025 | Nov 14, 2025 |
| 4 | Insider transaction | Nov 14, 2025 | Oct 15, 2025 |
| 4 | Insider transaction | Nov 14, 2025 | Oct 15, 2025 |
| 4 | Insider transaction | Nov 14, 2025 | Oct 15, 2025 |
| 4 | Insider transaction | Nov 14, 2025 | Oct 15, 2025 |
| 4 | Insider transaction | Nov 14, 2025 | Oct 15, 2025 |
| 4 | Insider transaction | Nov 14, 2025 | Oct 15, 2025 |
| 4 | Insider transaction | Nov 14, 2025 | Oct 15, 2025 |
| 4 | Insider transaction | Nov 14, 2025 | Oct 15, 2025 |
| 4 | Insider transaction | Nov 14, 2025 | Oct 15, 2025 |
| 4 | Insider transaction | Nov 14, 2025 | Oct 15, 2025 |
| 4 | Insider transaction | Oct 14, 2025 | Sep 15, 2025 |
| 4 | Insider transaction | Oct 14, 2025 | Sep 15, 2025 |
| 4 | Insider transaction | Oct 14, 2025 | Sep 15, 2025 |
| 4 | Insider transaction | Oct 14, 2025 | Sep 15, 2025 |
| 4 | Insider transaction | Oct 14, 2025 | Sep 15, 2025 |
| 4 | Insider transaction | Oct 14, 2025 | Sep 15, 2025 |
| 4 | Insider transaction | Oct 14, 2025 | Sep 15, 2025 |
| 4 | Insider transaction | Oct 14, 2025 | Sep 15, 2025 |
| 4 | Insider transaction | Oct 14, 2025 | Sep 15, 2025 |
| 4 | Insider transaction | Oct 14, 2025 | Sep 15, 2025 |
| 4 | Insider transaction | Sep 2, 2025 | Aug 15, 2025 |
| 4 | Insider transaction | Sep 2, 2025 | Aug 15, 2025 |
| 4 | Insider transaction | Sep 2, 2025 | Aug 15, 2025 |
| 4 | Insider transaction | Sep 2, 2025 | Aug 15, 2025 |
| 4 | Insider transaction | Sep 2, 2025 | Sep 2, 2025 |
| 4 | Insider transaction | Sep 2, 2025 | Aug 15, 2025 |
| 4 | Insider transaction | Sep 2, 2025 | Aug 15, 2025 |
| 4 | Insider transaction | Sep 2, 2025 | Aug 29, 2025 |
| 4 | Insider transaction | Sep 2, 2025 | Aug 15, 2025 |
| 4 | Insider transaction | Sep 2, 2025 | Aug 15, 2025 |
| 144 | Notice of proposed sale | Aug 14, 2025 | — |
| 4 | Insider transaction | Aug 14, 2025 | Aug 14, 2025 |
| 4 | Insider transaction | Aug 14, 2025 | Aug 14, 2025 |
| 4 | Insider transaction | Aug 14, 2025 | Jul 15, 2025 |
| 4 | Insider transaction | Aug 14, 2025 | Jul 15, 2025 |
| 4 | Insider transaction | Aug 14, 2025 | Jul 15, 2025 |
| 4 | Insider transaction | Aug 14, 2025 | Jul 15, 2025 |
| 4 | Insider transaction | Aug 14, 2025 | Jul 15, 2025 |
| 4 | Insider transaction | Aug 14, 2025 | Jul 15, 2025 |
| 4 | Insider transaction | Aug 14, 2025 | Jul 15, 2025 |
| 4 | Insider transaction | Aug 14, 2025 | Jul 15, 2025 |
| 4 | Insider transaction | Aug 14, 2025 | Aug 14, 2025 |
| 4 | Insider transaction | Jul 14, 2025 | Jun 13, 2025 |
| 4 | Insider transaction | Jul 14, 2025 | Jun 13, 2025 |
| 4 | Insider transaction | Jul 14, 2025 | Jun 13, 2025 |
| 4 | Insider transaction | Jul 14, 2025 | Jun 13, 2025 |
| 4 | Insider transaction | Jul 14, 2025 | Jun 13, 2025 |
| 4 | Insider transaction | Jul 14, 2025 | Jun 13, 2025 |
| 4 | Insider transaction | Jul 14, 2025 | Jun 13, 2025 |
| 4 | Insider transaction | Jul 14, 2025 | Jun 13, 2025 |
| 4 | Insider transaction | Jul 14, 2025 | Jun 27, 2025 |
| 4 | Insider transaction | Jul 14, 2025 | Jun 13, 2025 |
| 4 | Insider transaction | Jun 27, 2025 | Jun 27, 2025 |
| 4 | Insider transaction | Jun 27, 2025 | Jun 27, 2025 |
| 144 | Notice of proposed sale | Jun 27, 2025 | — |
| 144 | Notice of proposed sale | Jun 27, 2025 | — |
| 4 | Insider transaction | Jun 5, 2025 | May 15, 2025 |
| 4 | Insider transaction | Jun 5, 2025 | May 15, 2025 |
| 4 | Insider transaction | Jun 5, 2025 | May 15, 2025 |
| 4 | Insider transaction | Jun 5, 2025 | May 15, 2025 |
| 4 | Insider transaction | Jun 5, 2025 | May 15, 2025 |
| 4 | Insider transaction | Jun 5, 2025 | May 15, 2025 |
| 4 | Insider transaction | Jun 5, 2025 | May 15, 2025 |
| 4 | Insider transaction | Jun 5, 2025 | May 15, 2025 |
| 4 | Insider transaction | Jun 5, 2025 | May 15, 2025 |
| 4 | Insider transaction | May 19, 2025 | May 16, 2025 |
| 4 | Insider transaction | May 7, 2025 | May 5, 2025 |
| 4 | Insider transaction | May 7, 2025 | May 5, 2025 |
| 4 | Insider transaction | May 7, 2025 | May 5, 2025 |
| 4 | Insider transaction | May 7, 2025 | May 5, 2025 |
| 4 | Insider transaction | May 7, 2025 | May 5, 2025 |
| 4 | Insider transaction | May 7, 2025 | May 5, 2025 |
| 4 | Insider transaction | May 2, 2025 | Mar 27, 2025 |
| 4 | Insider transaction | May 2, 2025 | Mar 14, 2025 |
| 4 | Insider transaction | May 2, 2025 | Mar 14, 2025 |
| 4 | Insider transaction | May 2, 2025 | Mar 14, 2025 |
| 4 | Insider transaction | May 2, 2025 | Mar 14, 2025 |
| 4 | Insider transaction | May 2, 2025 | Mar 27, 2025 |
| 4 | Insider transaction | May 2, 2025 | Mar 14, 2025 |
| 4 | Insider transaction | May 2, 2025 | Mar 14, 2025 |
| 4 | Insider transaction | May 2, 2025 | Mar 14, 2025 |
| 4 | Insider transaction | Apr 3, 2025 | Apr 1, 2025 |
| 4 | Insider transaction | Apr 3, 2025 | Apr 1, 2025 |
| 4 | Insider transaction | Apr 3, 2025 | Apr 1, 2025 |
| 4 | Insider transaction | Apr 3, 2025 | Apr 1, 2025 |
| 4 | Insider transaction | Apr 3, 2025 | Apr 1, 2025 |
| 4 | Insider transaction | Apr 3, 2025 | Apr 1, 2025 |
| 4 | Insider transaction | Apr 3, 2025 | Apr 1, 2025 |
| 4 | Insider transaction | Mar 26, 2025 | Mar 26, 2025 |
| 4 | Insider transaction | Mar 26, 2025 | Mar 26, 2025 |
| 144 | Notice of proposed sale | Mar 26, 2025 | — |
| 144 | Notice of proposed sale | Mar 26, 2025 | — |
Showing 200 filings, the most recent 200. Main filings leave out insider and ownership forms such as Form 4; choose a type above to see them. Each form opens on SEC.gov. Older filings are on SEC EDGAR.
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Company profile
- Listed as
- MAIN (NYSE)
- Fiscal year ends
- December 31
- Incorporated in
- MD
- Headquarters
- Houston, TX
- SEC filer status
- Large accelerated filer
- SEC CIK
- 1396440
Source: SEC EDGAR filings. This is company-reported data, not investment advice.