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, Q1 2026
Institutional positions in Main Street Capital CORP as of Mar 31, 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
- 423
- 0 vs. Q4 2025
- Shares held
- 23.4M
- +2.63M (+12.7%) vs. Q4 2025
- Total value
- $1.24B
- −$18.1M (−1.4%) vs. Q4 2025
- New holders
- 57
- 170 more added
- Sold out
- 57
- 107 more reduced
8 institutions that held it in Q4 2025 haven't filed for Q1 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q4 2025: 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, Q1 2026
Shares, value and share of portfolio for each institution holding Main Street Capital CORP; share changes are against Q4 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Marshall Wace, LLP | 205,441 | $10.9M | 0.01% | +205,441 | New |
| Trinity Legacy Partners, LLC | 203,156 | $11.5M | 2.48% | +11,657+6.1% | Added |
| Sanders Morris Harris LLC | 237,255 | $12.6M | 1.99% | +237,255 | New |
| Raymond James Financial Inc | 263,721 | $13.9M | 0.00% | +10,921+4.3% | Added |
| Public Employees Retirement Association of Colorado | 281,396 | $14.9M | 0.06% | +1,196+0.4% | Added |
| Childress Capital Advisors, LLC | 293,733 | $15.6M | 2.81% | 00.0% | Unchanged |
| Goldman Sachs Group Inc | 313,388 | $16.6M | 0.00% | −43,411−12.2% | Reduced |
| Franklin Resources Inc | 320,868 | $17.0M | 0.00% | +19,160+6.4% | Added |
| LPL Financial LLC | 347,928 | $18.4M | 0.00% | −447−0.1% | Reduced |
| Millennium Management LLC | 359,838 | $19.1M | 0.01% | +112,775+45.6% | Added |
| Sumitomo Mitsui Trust Holdings, Inc. | 370,509 | $19.6M | 0.01% | +14,962+4.2% | Added |
| BlackRock, Inc. | 424,235 | $22.5M | 0.00% | +214,109+101.9% | Added |
| Invesco Ltd. | 432,475 | $22.9M | 0.00% | +12,720+3.0% | Added |
| Adell Harriman & Carpenter Inc | 484,584 | $25.7M | 1.57% | +6,149+1.3% | Added |
| Muzinich & Co., Inc. | 484,823 | $25.7M | 8.98% | +44,811+10.2% | Added |
| Qube Research & Technologies Ltd | 485,799 | $25.7M | 0.04% | +295,904+155.8% | Added |
| Two Sigma Investments, LP | 524,038 | $27.8M | 0.02% | +451,631+623.7% | Added |
| D. E. Shaw & Co., Inc. | 543,325 | $28.8M | 0.02% | +264,791+95.1% | Added |
| Legal & General Group Plc | 784,021 | $41.5M | 0.01% | +64,054+8.9% | Added |
| Morgan Stanley | 854,585 | $45.3M | 0.00% | −13,276−1.5% | Reduced |
| UBS Group AG | 1,338,812 | $70.9M | 0.01% | +726,936+118.8% | Added |
| Van Eck Associates Corp | 2,108,922 | $111.7M | 0.08% | +976,576+86.2% | Added |
| Price T Rowe Associates Inc | 2,708,803 | $143.5M | 0.02% | −25,658−0.9% | Reduced |
| Jane Street Group, LLC | 0 | $0 | 0.00% | −314,648−100.0% | Sold out |
| HRT Financial LP | 0 | $0 | 0.00% | −105,983−100.0% | Sold out |
| ExodusPoint Capital Management, LP | 0 | $0 | 0.00% | −53,508−100.0% | Sold out |
| Northern Trust Corp | 0 | $0 | 0.00% | −40,325−100.0% | Sold out |
| BI Asset Management Fondsmaeglerselskab A/S | 0 | $0 | 0.00% | −35,461−100.0% | Sold out |
| Quest Partners LLC | 0 | $0 | 0.00% | −34,409−100.0% | Sold out |
| Massar Capital Management, LP | 0 | $0 | 0.00% | −21,364−100.0% | Sold out |
| Brasada Capital Management, LP | 0 | $0 | 0.00% | −17,000−100.0% | Sold out |
| Gotham Asset Management, LLC | 0 | $0 | 0.00% | −17,339−100.0% | Sold out |
| Susquehanna Portfolio Strategies, LLC | 0 | $0 | 0.00% | −11,773−100.0% | Sold out |
| Verition Fund Management LLC | 0 | $0 | 0.00% | −11,448−100.0% | Sold out |
| Verity Asset Management, Inc. | 0 | $0 | 0.00% | −10,669−100.0% | Sold out |
| Group One Trading, L.P. | 0 | $0 | 0.00% | −9,662−100.0% | Sold out |
| Perennial Investment Advisors, LLC | 0 | $0 | 0.00% | −9,094−100.0% | Sold out |
| L & S Advisors Inc | 0 | $0 | 0.00% | – | Sold out |
| Pinebridge Investments LLC | 0 | $0 | 0.00% | −8,397−100.0% | Sold out |
| Maridea Wealth Management LLC | 0 | $0 | 0.00% | −7,132−100.0% | Sold out |
| Centiva Capital, LP | 0 | $0 | 0.00% | −7,037−100.0% | Sold out |
| Sentinel Trust Co Lba | 0 | $0 | 0.00% | −6,770−100.0% | Sold out |
| Thrive Wealth Management, LLC | 0 | $0 | 0.00% | −5,073−100.0% | Sold out |
| Jain Global LLC | 0 | $0 | 0.00% | −4,750−100.0% | Sold out |
| Sagespring Wealth Partners, LLC | 0 | $0 | 0.00% | −4,733−100.0% | Sold out |
| Fisher Asset Management, LLC | 0 | $0 | 0.00% | −4,540−100.0% | Sold out |
| Axxcess Wealth Management, LLC | 0 | $0 | 0.00% | −4,466−100.0% | Sold out |
| Quadrature Capital Ltd | 0 | $0 | 0.00% | −4,425−100.0% | Sold out |
| Mirae Asset Global Investments Co., Ltd. | 0 | $0 | 0.00% | −4,335−100.0% | Sold out |
| Financial Advisors Network, Inc. | 0 | $0 | 0.00% | −4,000−100.0% | Sold out |
| Evergreen Capital Management LLC | 0 | $0 | 0.00% | −3,994−100.0% | Sold out |
| Koshinski Asset Management, Inc. | 0 | $0 | 0.00% | −3,946−100.0% | Sold out |
| LRT Capital Management, LLC | 0 | $0 | 0.00% | −3,907−100.0% | Sold out |
| Old National Bancorp | 0 | $0 | 0.00% | −3,793−100.0% | Sold out |
| Linscomb & Williams, Inc. | 0 | $0 | 0.00% | −3,754−100.0% | Sold out |
| Cornerstone Wealth Management, LLC | 0 | $0 | 0.00% | −3,674−100.0% | Sold out |
| Focused Wealth Management, Inc | 0 | $0 | 0.00% | −3,633−100.0% | Sold out |
| MKT Advisors LLC | 0 | $0 | 0.00% | −3,427−100.0% | Sold out |
| Garton & Associates Financial Advisors LLC | 0 | $0 | 0.00% | −3,532−100.0% | Sold out |
| Alliance Wealth Advisors, LLC | 0 | $0 | 0.00% | −3,500−100.0% | Sold out |
| Catalyst Funds Management Pty Ltd | 0 | $0 | 0.00% | −3,500−100.0% | Sold out |
| Estate Planners Group, LLC | 0 | $0 | 0.00% | −2,894−100.0% | Sold out |
| Tucker Asset Management LLC | 0 | $0 | 0.00% | −2,447−100.0% | Sold out |
| Compass Financial Services Inc | 0 | $0 | 0.00% | −2,286−100.0% | Sold out |
| Nomura Asset Management Co Ltd | 0 | $0 | 0.00% | −1,610−100.0% | Sold out |
| Investors Research Corp | 0 | $0 | 0.00% | −500−100.0% | Sold out |
| Garner Asset Management Corp | 0 | $0 | 0.00% | −460−100.0% | Sold out |
| Hantz Financial Services, Inc. | 0 | $0 | 0.00% | −332−100.0% | Sold out |
| Cornerstone Planning Group LLC | 0 | $0 | 0.00% | −156−100.0% | Sold out |
| IFC & Insurance Marketing, Inc. | 0 | $0 | 0.00% | −169−100.0% | Sold out |
| Safe Harbor Fiduciary, LLC | 0 | $0 | 0.00% | −120−100.0% | Sold out |
| BOK Financial Private Wealth, Inc. | 0 | $0 | 0.00% | −100−100.0% | Sold out |
| Cape Investment Advisory, Inc. | 0 | $0 | 0.00% | −100−100.0% | Sold out |
| Essential Partners LLC | 0 | $0 | 0.00% | −82−100.0% | Sold out |
| Erste Asset Management GmbH | 0 | $0 | 0.00% | −63−100.0% | Sold out |
| Versant Capital Management, Inc | 0 | $0 | 0.00% | −18−100.0% | Sold out |
| Golden State Wealth Management, LLC | 0 | $0 | 0.00% | −14−100.0% | Sold out |
| Evermay Wealth Management LLC | 0 | $0 | 0.00% | −10−100.0% | Sold out |
| Atlas Capital Advisors LLC | 0 | $0 | 0.00% | −5−100.0% | Sold out |
| DV Trading LLC | 0 | $0 | 0.00% | −1−100.0% | Sold out |
| MGB Wealth Management, LLC | – | – | – | – | Not filed |
| SS&H Financial Advisors, Inc. | – | – | – | – | Not filed |
| Global Retirement Partners, LLC | – | – | – | – | Not filed |
| Passumpsic Savings Bank | – | – | – | – | Not filed |
| Alpha Cubed Investments, LLC | – | – | – | – | Not filed |
| CIBC Private Wealth Group, LLC | – | – | – | – | Not filed |
| Comerica Bank | – | – | – | – | Not filed |
| Trust Co of Vermont | – | – | – | – | Not filed |