Main Street Capital CORP
MAIN- Exchange
- NYSE
- SEC CIK
- 0001396440
In the last 90 days, Main Street Capital CORP insiders filed 1 open-market purchase and 1 sale; 401 institutions reported holding it in 13F filings for Q2 2026, worth $1.18B in total; no superinvestor holds it.
13F holders, Q2 2026
Institutional positions in Main Street Capital CORP as of Jun 30, 2026. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works
- Institutional holders
- 401
- −19 vs. Q1 2026
- Shares held
- 22.7M
- −496.9K (−2.1%) vs. Q1 2026
- Total value
- $1.18B
- −$53.5M (−4.4%) vs. Q1 2026
- New holders
- 43
- 148 more added
- Sold out
- 62
- 122 more reduced
3 institutions that held it in Q1 2026 haven't filed for Q2 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q1 2026: new holders, sold out and not filed yet
Holders and value by quarter
Institutions reporting MAIN on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.
| Quarter | Holders | Value |
|---|---|---|
| Q2 2026 | 401 | $1.18B |
| Q1 2026 | 423 | $1.24B |
| Q4 2025 | 431 | $1.26B |
| Q3 2025 | 408 | $1.27B |
| Q2 2025 | 405 | $1.17B |
| Q1 2025 | 393 | $1.07B |
| Q4 2024 | 401 | $1.10B |
| Q3 2024 | 354 | $931.0M |
| Q2 2024 | 340 | $869.4M |
| Q1 2024 | 326 | $804.4M |
| Q4 2023 | 313 | $752.3M |
| Q3 2023 | 292 | $716.5M |
| Q2 2023 | 289 | $660.3M |
| Q1 2023 | 273 | $617.8M |
| Q4 2022 | 273 | $571.7M |
| Q3 2022 | 248 | $491.5M |
| Q2 2022 | 244 | $533.6M |
| Q1 2022 | 256 | $546.5M |
| Q4 2021 | 257 | $558.7M |
| Q3 2021 | 236 | $508.1M |
| Q2 2021 | 228 | $488.5M |
| Q1 2021 | 230 | $511.5M |
Institutions, Q2 2026
Shares, value and share of portfolio for each institution holding Main Street Capital CORP; share changes are against Q1 2026.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Union Bancaire Privee, UBP SA | 2,942 | – | – | 00.0% | Unchanged |
| Marshall Wace, LLP | 0 | $0 | 0.00% | −205,441−100.0% | Sold out |
| Engineers Gate Manager LP | 0 | $0 | 0.00% | −73,242−100.0% | Sold out |
| Point72 Asset Management, L.P. | 0 | $0 | 0.00% | −72,144−100.0% | Sold out |
| Virtu Financial LLC | 0 | $0 | 0.00% | −34,214−100.0% | Sold out |
| Magnetar Financial LLC | 0 | $0 | 0.00% | −33,000−100.0% | Sold out |
| Toroso Investments, LLC | 0 | $0 | 0.00% | −27,840−100.0% | Sold out |
| Credit Agricole S A | 0 | $0 | 0.00% | −21,312−100.0% | Sold out |
| Aquatic Capital Management LLC | 0 | $0 | 0.00% | −16,814−100.0% | Sold out |
| Bay Colony Advisory Group, Inc d/b/a Bay Colony Advisors | 0 | $0 | 0.00% | −16,159−100.0% | Sold out |
| XTX Topco Ltd | 0 | $0 | 0.00% | −15,937−100.0% | Sold out |
| Golden State Equity Partners | 0 | $0 | 0.00% | −15,305−100.0% | Sold out |
| Empowered Funds, LLC | 0 | $0 | 0.00% | −13,880−100.0% | Sold out |
| Fieldview Capital Management, LLC | 0 | $0 | 0.00% | −12,526−100.0% | Sold out |
| AlphaCore Capital LLC | 0 | $0 | 0.00% | −12,005−100.0% | Sold out |
| Carnegie Capital Asset Management, LLC | 0 | $0 | 0.00% | −10,851−100.0% | Sold out |
| Atria Investments LLC | 0 | $0 | 0.00% | −10,088−100.0% | Sold out |
| Diversified Management Inc | 0 | $0 | 0.00% | −9,739−100.0% | Sold out |
| Burns Matteson Capital Management, LLC | 0 | $0 | 0.00% | −8,841−100.0% | Sold out |
| Disciplined Investors, L.L.C. | 0 | $0 | 0.00% | −8,240−100.0% | Sold out |
| Sepio Capital, LP | 0 | $0 | 0.00% | −8,000−100.0% | Sold out |
| Oxford Asset Management LLP | 0 | $0 | 0.00% | −7,776−100.0% | Sold out |
| Two Sigma Securities, LLC | 0 | $0 | 0.00% | −6,771−100.0% | Sold out |
| Strategic Financial Concepts, LLC | 0 | $0 | 0.00% | −6,664−100.0% | Sold out |
| Brookstone Capital Management | 0 | $0 | 0.00% | −5,843−100.0% | Sold out |
| SG Americas Securities, LLC | 0 | $0 | 0.00% | −5,598−100.0% | Sold out |
| Plancorp, LLC | 0 | $0 | 0.00% | −5,025−100.0% | Sold out |
| Mirabella Financial Services LLP | 0 | $0 | 0.00% | −4,899−100.0% | Sold out |
| Warren Averett Asset Management, LLC | 0 | $0 | 0.00% | −4,650−100.0% | Sold out |
| Accurate Wealth Management, LLC | 0 | $0 | 0.00% | −4,299−100.0% | Sold out |
| Kaizen Financial Strategies | 0 | $0 | 0.00% | −3,976−100.0% | Sold out |
| Ausdal Financial Partners, Inc. | 0 | $0 | 0.00% | −3,890−100.0% | Sold out |
| Cookson Peirce & Co Inc | 0 | $0 | 0.00% | −3,875−100.0% | Sold out |
| Wesbanco Bank Inc | 0 | $0 | 0.00% | −3,791−100.0% | Sold out |
| Titiun Yejiel | 0 | $0 | 0.00% | −3,000−100.0% | Sold out |
| Register Financial Advisors LLC | 0 | $0 | 0.00% | −2,443−100.0% | Sold out |
| Central Trust Co | 0 | $0 | 0.00% | −2,400−100.0% | Sold out |
| Kathmere Capital Management, LLC | 0 | $0 | 0.00% | −1,564−100.0% | Sold out |
| Chelsea Counsel Co | 0 | $0 | 0.00% | −1,280−100.0% | Sold out |
| State of Wyoming | 0 | $0 | 0.00% | −1,233−100.0% | Sold out |
| Root Financial Partners, LLC | 0 | $0 | 0.00% | −650−100.0% | Sold out |
| Quest 10 Wealth Builders, Inc. | 0 | $0 | 0.00% | −600−100.0% | Sold out |
| Quarry LP | 0 | $0 | 0.00% | −510−100.0% | Sold out |
| Simplex Trading, LLC | 0 | $0 | 0.00% | −480−100.0% | Sold out |
| Wealth Preservation Advisors, LLC | 0 | $0 | 0.00% | −400−100.0% | Sold out |
| Palladiem, LLC | 0 | $0 | 0.00% | −391−100.0% | Sold out |
| Harbor Asset Planning, Inc. | 0 | $0 | 0.00% | −372−100.0% | Sold out |
| Lloyd Advisory Services, LLC. | 0 | $0 | 0.00% | −312−100.0% | Sold out |
| Innovative Asset Advisors Group, LLC | 0 | $0 | 0.00% | −300−100.0% | Sold out |
| Salem Investment Counselors Inc | 0 | $0 | 0.00% | −275−100.0% | Sold out |
| RWM Asset Management, LLC | 0 | $0 | 0.00% | −218−100.0% | Sold out |
| Hollencrest Capital Management | 0 | $0 | 0.00% | −200−100.0% | Sold out |
| Lavaca Capital LLC | 0 | $0 | 0.00% | −200−100.0% | Sold out |
| Quadrant Capital Group LLC | 0 | $0 | 0.00% | −155−100.0% | Sold out |
| Plante Moran Financial Advisors, LLC | 0 | $0 | 0.00% | −100−100.0% | Sold out |
| Duncker Streett & Co Inc | 0 | $0 | 0.00% | −60−100.0% | Sold out |
| Strategic Wealth Partners, Ltd. | 0 | $0 | 0.00% | −55−100.0% | Sold out |
| Strategic Advocates LLC | 0 | $0 | 0.00% | −33−100.0% | Sold out |
| SWAN Capital LLC | 0 | $0 | 0.00% | −20−100.0% | Sold out |
| Merkkuri Wealth Advisors LLC | 0 | $0 | 0.00% | −10−100.0% | Sold out |
| Delta Asset Management LLC | 0 | $0 | 0.00% | −4−100.0% | Sold out |
| Portus Wealth Advisors, LLC | 0 | $0 | 0.00% | −2−100.0% | Sold out |
| PMV Capital Advisers, LLC | 0 | $0 | 0.00% | −2−100.0% | Sold out |
| U.S. Capital Wealth Advisors, LLC | – | – | – | – | Not filed |
| CWM, LLC | – | – | – | – | Not filed |
| Sunbelt Securities, Inc. | – | – | – | – | Not filed |