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 |
|---|---|---|---|---|---|
| PMV Capital Advisers, LLC | 2 | $106 | 0.00% | +2 | New |
| Portus Wealth Advisors, LLC | 2 | $109 | 0.00% | +2 | New |
| Danske Bank A/S | 4 | $212 | 0.00% | −10−71.4% | Reduced |
| Delta Asset Management LLC | 4 | $212 | 0.00% | 00.0% | Unchanged |
| Mountain Hill Investment Partners Corp. | 5 | $279 | 0.00% | 00.0% | Unchanged |
| Merkkuri Wealth Advisors LLC | 10 | $504 | 0.00% | +10 | New |
| Farmers & Merchants Investments Inc | 19 | $1.01K | 0.00% | 00.0% | Unchanged |
| GAMMA Investing LLC | 19 | $1.01K | 0.00% | 00.0% | Unchanged |
| SWAN Capital LLC | 20 | $1.06K | 0.00% | −53−72.6% | Reduced |
| Abound Wealth Management | 20 | $1.06K | 0.00% | +20 | New |
| Medallion Wealth Advisors, LLC | 22 | $1.18K | 0.00% | 00.0% | Unchanged |
| Strategic Advocates LLC | 33 | $1.75K | 0.01% | −2,756−98.8% | Reduced |
| Davis Capital Management | 33 | $1.75K | 0.00% | 00.0% | Unchanged |
| Strategic Wealth Partners, Ltd. | 55 | $2.90K | 0.00% | +2+3.8% | Added |
| Covestor Ltd | 56 | $3.00K | 0.00% | 00.0% | Unchanged |
| St Germain D J Co Inc | 59 | $3.10K | 0.00% | +1+1.7% | Added |
| Duncker Streett & Co Inc | 60 | $3.18K | 0.00% | 00.0% | Unchanged |
| SJS Investment Consulting Inc. | 64 | $3.40K | 0.00% | +5+8.5% | Added |
| Financial Consulate, Inc | 86 | $4.55K | 0.00% | 00.0% | Unchanged |
| Founders Capital Management | 100 | $5.30K | 0.00% | 00.0% | Unchanged |
| Evolution Wealth Management Inc. | 100 | $5.30K | 0.00% | 00.0% | Unchanged |
| Plante Moran Financial Advisors, LLC | 100 | $5.30K | 0.00% | +100 | New |
| Huntington National Bank | 102 | $5.40K | 0.00% | +101+10,100.0% | Added |
| International Assets Investment Management, LLC | 115 | $5.97K | 0.00% | +115 | New |
| West Branch Capital LLC | 125 | $6.62K | 0.00% | 00.0% | Unchanged |
| Murphy & Mullick Capital Management Corp | 127 | $6.73K | 0.00% | 00.0% | Unchanged |
| JNBA Financial Advisors | 129 | $6.83K | 0.00% | 00.0% | Unchanged |
| Ankerstar Wealth, LLC | 139 | $7.36K | 0.01% | 00.0% | Unchanged |
| McGuire Capital Advisors Inc | 139 | $7.36K | 0.00% | 00.0% | Unchanged |
| Tidemark, LLC | 150 | $7.94K | 0.00% | 00.0% | Unchanged |
| JPL Wealth Management, LLC | 150 | $7.94K | 0.00% | +150 | New |
| Quadrant Capital Group LLC | 155 | $8.21K | 0.00% | +108+229.8% | Added |
| Keating Financial Advisory Services, Inc. | 185 | $9.80K | 0.00% | −1,149−86.1% | Reduced |
| Wolff Wiese Magana LLC | 187 | $9.90K | 0.01% | 00.0% | Unchanged |
| Hollencrest Capital Management | 200 | $10.6K | 0.00% | 00.0% | Unchanged |
| Lavaca Capital LLC | 200 | $10.6K | 0.00% | 00.0% | Unchanged |
| Alerus Financial NA | 206 | $10.9K | 0.00% | 00.0% | Unchanged |
| RWM Asset Management, LLC | 218 | $11.5K | 0.00% | +218 | New |
| Crewe Advisors LLC | 219 | $11.6K | 0.00% | 00.0% | Unchanged |
| Bogart Wealth, LLC | 219 | $11.6K | 0.00% | +1+0.5% | Added |
| FMR LLC | 258 | $13.7K | 0.00% | +241+1,417.6% | Added |
| Salem Investment Counselors Inc | 275 | $14.6K | 0.00% | +275 | New |
| Manchester Capital Management LLC | 300 | $15.9K | 0.00% | −296−49.7% | Reduced |
| Webster Bank, N. A. | 300 | $15.9K | 0.00% | 00.0% | Unchanged |
| IAG Wealth Partners, LLC | 300 | $15.9K | 0.00% | 00.0% | Unchanged |
| Innovative Asset Advisors Group, LLC | 300 | $15.9K | 0.01% | +300 | New |
| Kingdom Financial Group LLC. | 312 | $16.5K | 0.00% | +6+2.0% | Added |
| Lloyd Advisory Services, LLC. | 312 | $16.5K | 0.00% | +312 | New |
| Asset Dedication, LLC | 325 | $17.2K | 0.00% | 00.0% | Unchanged |
| Spire Wealth Management | 334 | $17.7K | 0.00% | −582−63.5% | Reduced |
| Harbor Asset Planning, Inc. | 372 | $19.7K | 0.02% | 00.0% | Unchanged |
| Palladiem, LLC | 391 | $20.9K | 0.02% | 00.0% | Unchanged |
| Wealth Preservation Advisors, LLC | 400 | $21.2K | 0.02% | 00.0% | Unchanged |
| Peterson Wealth Management | 400 | $21.2K | 0.01% | +400 | New |
| Roxbury Financial LLC | 423 | $22.4K | 0.02% | 00.0% | Unchanged |
| Ameritas Investment Partners, Inc. | 454 | $24.0K | 0.00% | +454 | New |
| Federation des caisses Desjardins du Quebec | 460 | $24.4K | 0.00% | 00.0% | Unchanged |
| South State Corp. | 461 | $24.4K | 0.00% | 00.0% | Unchanged |
| Simplex Trading, LLC | 480 | $25.4K | 0.00% | −1,243−72.1% | Reduced |
| Smithfield Trust Co | 500 | $26.0K | 0.00% | 00.0% | Unchanged |
| Asset Planning,Inc | 500 | $26.5K | 0.02% | 00.0% | Unchanged |
| Brown Brothers Harriman & Co | 501 | $26.5K | 0.00% | +200+66.4% | Added |
| Quarry LP | 510 | $27.0K | 0.01% | +510 | New |
| Gilpin Wealth Management, LLC | 520 | $27.5K | 0.02% | 00.0% | Unchanged |
| Key Capital Management, INC | 577 | $30.6K | 0.02% | −254−30.6% | Reduced |
| Truvestments Capital LLC | 577 | $30.6K | 0.01% | −196−25.4% | Reduced |
| Steigerwald, Gordon & Koch Inc. | 600 | $31.8K | 0.00% | 00.0% | Unchanged |
| Quest 10 Wealth Builders, Inc. | 600 | $31.8K | 0.03% | +200+50.0% | Added |
| Prestige Wealth Management Group LLC | 650 | $34.4K | 0.01% | 00.0% | Unchanged |
| Root Financial Partners, LLC | 650 | $34.4K | 0.00% | 00.0% | Unchanged |
| Hazlett, Burt & Watson, Inc. | 700 | $37.0K | 0.01% | 00.0% | Unchanged |
| Financial Network Wealth Advisors LLC | 718 | $38.0K | 0.04% | +10+1.4% | Added |
| Capital Advisors, Ltd. LLC | 750 | $40.0K | 0.00% | 00.0% | Unchanged |
| Colonial Trust Advisors | 866 | $45.9K | 0.00% | +16+1.9% | Added |
| UBS Asset Management Americas Inc | 871 | $46.1K | 0.00% | +540+163.1% | Added |
| EverSource Wealth Advisors, LLC | 972 | $51.5K | 0.00% | +17+1.8% | Added |
| Avion Wealth | 1,000 | $52.0K | 0.01% | 00.0% | Unchanged |
| Bryn Mawr Trust Co | 1,000 | $53.0K | 0.00% | 00.0% | Unchanged |
| Sankala Group LLC | 1,009 | $53.0K | 0.04% | +503+99.4% | Added |
| NBC Securities, Inc. | 1,005 | $53.3K | 0.00% | +13+1.3% | Added |
| Umb Bank N A | 1,034 | $54.8K | 0.00% | 00.0% | Unchanged |
| Winch Advisory Services, LLC | 1,070 | $56.7K | 0.01% | +18+1.7% | Added |
| Fifth Third Bancorp | 1,075 | $56.9K | 0.00% | +1,075 | New |
| Washington Trust Advisors, Inc. | 1,129 | $59.8K | 0.00% | 00.0% | Unchanged |
| Sunrise Financial Services, LLC | 1,152 | $61.0K | 0.04% | +520+82.3% | Added |
| Financial Management Professionals, Inc. | 1,185 | $62.7K | 0.01% | +5+0.4% | Added |
| Armstrong Advisory Group, Inc | 1,203 | $63.7K | 0.00% | −934−43.7% | Reduced |
| State of Wyoming | 1,233 | $65.3K | 0.01% | +1,233 | New |
| Chelsea Counsel Co | 1,280 | $67.8K | 0.03% | 00.0% | Unchanged |
| Princeton Global Asset Management LLC | 1,289 | $68.3K | 0.01% | 00.0% | Unchanged |
| Purpose Unlimited Inc. | 1,403 | $72.5K | 0.00% | +1,403 | New |
| Tower Research Capital LLC (TRC) | 1,431 | $75.8K | 0.00% | +722+101.8% | Added |
| Assetmark, Inc | 1,450 | $76.8K | 0.00% | +696+92.3% | Added |
| IFP Advisors, Inc | 1,461 | $77.4K | 0.00% | +22+1.5% | Added |
| Leonteq Securities AG | 1,500 | $79.4K | 0.00% | −1,000−40.0% | Reduced |
| Kathmere Capital Management, LLC | 1,564 | $82.8K | 0.01% | +1,564 | New |
| Bayban | 1,612 | $85.4K | 0.07% | 00.0% | Unchanged |
| Atlantic Union Bankshares Corp | 1,765 | $93.5K | 0.00% | −182−9.3% | Reduced |
| Private Trust Co NA | 1,869 | $99.0K | 0.01% | 00.0% | Unchanged |
| AdvisorNet Financial, Inc | 1,985 | $105.1K | 0.01% | −770−27.9% | Reduced |