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 |
|---|---|---|---|---|---|
| Advisory Services Network, LLC | 35,793 | $1.90M | 0.03% | −1,377−3.7% | Reduced |
| Coldstream Capital Management Inc | 35,626 | $1.89M | 0.02% | −460−1.3% | Reduced |
| Sigma Planning Corp | 35,492 | $1.88M | 0.05% | −1,148−3.1% | Reduced |
| Virtu Financial LLC | 34,214 | $1.81M | 0.08% | +34,214 | New |
| Arkadios Wealth Advisors | 33,747 | $1.79M | 0.03% | +1,199+3.7% | Added |
| Magnetar Financial LLC | 33,000 | $1.75M | 0.02% | +27,075+457.0% | Added |
| Citadel Advisors LLC | 29,942 | $1.59M | 0.00% | −6,926−18.8% | Reduced |
| Lido Advisors, LLC | 29,380 | $1.56M | 0.01% | +16,860+134.7% | Added |
| Universal- Beteiligungs- und Servicegesellschaft mbH | 29,238 | $1.55M | 0.00% | +505+1.8% | Added |
| Dearborn Partners LLC | 28,832 | $1.53M | 0.08% | −540−1.8% | Reduced |
| Legacy Capital Wealth Partners, LLC | 28,752 | $1.52M | 0.31% | +1,166+4.2% | Added |
| Toroso Investments, LLC | 27,840 | $1.47M | 0.00% | +9,396+50.9% | Added |
| LGT Fund Management Co Ltd. | 27,752 | $1.47M | 0.06% | +27,752 | New |
| AE Wealth Management LLC | 26,289 | $1.39M | 0.01% | +10,856+70.3% | Added |
| National Asset Management, Inc. | 26,756 | $1.38M | 0.09% | −1,103−4.0% | Reduced |
| Bokf, NA | 25,000 | $1.32M | 0.02% | 00.0% | Unchanged |
| Manufacturers Life Insurance Company, The | 24,890 | $1.32M | 0.00% | +2,467+11.0% | Added |
| DnB Asset Management AS | 24,629 | $1.30M | 0.00% | −12,447−33.6% | Reduced |
| Widmann Financial Services, Inc. | 24,329 | $1.29M | 0.77% | −21−0.1% | Reduced |
| Squarepoint Ops LLC | 24,255 | $1.28M | 0.00% | −4,798−16.5% | Reduced |
| Castleview Partners, LLC | 23,680 | $1.25M | 0.64% | 00.0% | Unchanged |
| Cerity Partners LLC | 22,870 | $1.21M | 0.00% | +2,234+10.8% | Added |
| WealthPLAN Partners, LLC | 22,413 | $1.19M | 0.23% | −638−2.8% | Reduced |
| Mackenzie Financial Corp | 21,801 | $1.15M | 0.00% | +2,283+11.7% | Added |
| Arete Wealth Advisors, LLC | 21,664 | $1.15M | 0.09% | +1,234+6.0% | Added |
| Clear Trail Advisors, LLC | 21,624 | $1.15M | 0.19% | +21,624 | New |
| Strategy Asset Managers LLC | 21,494 | $1.14M | 0.19% | +21,494 | New |
| Credit Agricole S A | 21,312 | $1.13M | 0.00% | +379+1.8% | Added |
| Generali Investments CEE, investicni spolecnost, a.s. | 20,785 | $1.10M | 0.06% | 00.0% | Unchanged |
| Milestone Asset Management, LLC | 20,685 | $1.10M | 0.20% | +4,813+30.3% | Added |
| Simon Quick Advisors, LLC | 20,529 | $1.09M | 0.05% | −21−0.1% | Reduced |
| Savvy Advisors, Inc. | 20,350 | $1.08M | 0.03% | +2,273+12.6% | Added |
| TCG Advisory Services, LLC | 19,821 | $1.05M | 0.03% | −8,677−30.4% | Reduced |
| Baird Financial Group, Inc. | 19,523 | $1.03M | 0.00% | −609−3.0% | Reduced |
| Natixis | 19,425 | $1.03M | 0.00% | 00.0% | Unchanged |
| Quantinno Capital Management LP | 18,982 | $1.01M | 0.00% | +18,982 | New |
| SMH Capital Advisors Inc | 18,886 | $1.00M | 2.83% | +20.0% | Added |
| Wealth Enhancement Advisory Services, LLC | 18,735 | $986.0K | 0.00% | −12,625−40.3% | Reduced |
| Callahan Advisors, LLC | 18,509 | $980.2K | 0.08% | +619+3.5% | Added |
| MML Investors Services, LLC | 17,841 | $944.9K | 0.00% | −1,153−6.1% | Reduced |
| Captrust Financial Advisors | 17,701 | $937.5K | 0.00% | +1,608+10.0% | Added |
| Steward Partners Investment Advisory, LLC | 17,469 | $925.2K | 0.00% | −785−4.3% | Reduced |
| Signature Equity Partners, LLC | 17,463 | $924.8K | 0.50% | +7,939+83.4% | Added |
| Uncommon Cents Investing LLC | 17,352 | $919.0K | 0.21% | +375+2.2% | Added |
| AQR Capital Management LLC | 17,348 | $918.8K | 0.00% | +17,348 | New |
| Sanctuary Advisors, LLC | 17,340 | $918.3K | 0.00% | +675+4.1% | Added |
| Ronald Blue Trust, Inc. | 17,163 | $909.0K | 0.01% | −125−0.7% | Reduced |
| Advisory Advocates, LLC | 17,018 | $901.3K | 0.92% | −577−3.3% | Reduced |
| Aquatic Capital Management LLC | 16,814 | $890.5K | 0.03% | −10,965−39.5% | Reduced |
| Delta Investment Management, LLC | 16,781 | $888.7K | 0.16% | +1,178+7.5% | Added |
| Chilton Capital Management LLC | 16,717 | $885.3K | 0.03% | 00.0% | Unchanged |
| Nations Financial Group Inc, | 16,645 | $881.6K | 0.05% | +1,102+7.1% | Added |
| ProShare Advisors LLC | 16,524 | $875.1K | 0.00% | +112+0.7% | Added |
| Bay Colony Advisory Group, Inc d/b/a Bay Colony Advisors | 16,159 | $855.8K | 0.10% | +170+1.1% | Added |
| XTX Topco Ltd | 15,937 | $844.0K | 0.01% | −45,579−74.1% | Reduced |
| Janney Montgomery Scott LLC | 15,907 | $842.0K | 0.00% | −2,010−11.2% | Reduced |
| Venturi Wealth Management, LLC | 15,583 | $825.3K | 0.04% | 00.0% | Unchanged |
| Golden State Equity Partners | 15,305 | $810.6K | 0.06% | +7,617+99.1% | Added |
| CI Private Wealth, LLC | 15,299 | $810.2K | 0.00% | −875,162−98.3% | Reduced |
| Stifel Financial Corp | 15,195 | $804.7K | 0.00% | +2,567+20.3% | Added |
| Belpointe Asset Management LLC | 15,095 | $799.4K | 0.03% | +65+0.4% | Added |
| Fortis Capital Advisors, LLC | 15,095 | $799.4K | 0.10% | +65+0.4% | Added |
| Independent Financial Group, LLC | 14,687 | $777.8K | 0.02% | −1,812−11.0% | Reduced |
| NewEdge Wealth, LLC | 14,584 | $772.4K | 0.01% | 00.0% | Unchanged |
| Equitable Holdings, Inc. | 12,512 | $755.4K | 0.00% | +2,125+20.5% | Added |
| WCG Wealth Advisors LLC | 14,095 | $746.5K | 0.02% | −1,375−8.9% | Reduced |
| Financial Security Advisor, Inc. | 14,021 | $742.5K | 0.14% | +27+0.2% | Added |
| MAI Capital Management | 13,998 | $741.3K | 0.00% | +265+1.9% | Added |
| Empowered Funds, LLC | 13,880 | $735.1K | 0.00% | +165+1.2% | Added |
| Allworth Financial LP | 13,823 | $732.1K | 0.00% | −348−2.5% | Reduced |
| Mindset Wealth Management, LLC | 13,811 | $731.4K | 0.20% | +932+7.2% | Added |
| Wiley Bros.-Aintree Capital, LLC | 13,483 | $710.9K | 0.00% | +9,711+257.4% | Added |
| HB Wealth Management, LLC | 13,408 | $710.1K | 0.00% | +951+7.6% | Added |
| Eagle Global Advisors LLC | 13,395 | $709.4K | 0.03% | −7,880−37.0% | Reduced |
| Smartleaf Asset Management LLC | 13,361 | $690.1K | 0.02% | +42+0.3% | Added |
| Tradition Wealth Management, LLC | 12,849 | $680.5K | 0.05% | +167+1.3% | Added |
| PFG Investments, LLC | 12,819 | $678.9K | 0.03% | −67−0.5% | Reduced |
| Susquehanna International Group, LLP | 12,728 | $674.1K | 0.00% | −31,843−71.4% | Reduced |
| RMR Wealth Builders | 12,712 | $673.2K | 0.05% | −209−1.6% | Reduced |
| D.B. Root & Company, LLC | 12,688 | $672.0K | 0.16% | −17−0.1% | Reduced |
| Cordoba Advisory Partners LLC | 12,582 | $665.7K | 0.18% | +336+2.7% | Added |
| Fieldview Capital Management, LLC | 12,526 | $663.4K | 0.19% | +12,526 | New |
| Mercer Global Advisors Inc | 12,526 | $663.4K | 0.00% | −1,058−7.8% | Reduced |
| Concurrent Investment Advisors, LLC | 12,496 | $661.8K | 0.01% | +658+5.6% | Added |
| Catalyst Capital Advisors LLC | 12,128 | $642.3K | 0.01% | 00.0% | Unchanged |
| Westbourne Investment Advisors, Inc. | 12,100 | $640.8K | 0.19% | 00.0% | Unchanged |
| AlphaCore Capital LLC | 12,005 | $635.8K | 0.02% | +12,005 | New |
| JustInvest LLC | 11,885 | $629.4K | 0.01% | +1,404+13.4% | Added |
| Inscription Capital, LLC | 11,813 | $625.6K | 0.07% | +14+0.1% | Added |
| Truist Financial Corp | 11,753 | $622.5K | 0.00% | +177+1.5% | Added |
| Guggenheim Capital LLC | 11,680 | $618.6K | 0.00% | −423−3.5% | Reduced |
| Virtue Capital Management, LLC | 11,758 | $607.3K | 0.09% | +227+2.0% | Added |
| Colony Group, LLC | 10,853 | $574.8K | 0.00% | +810+8.1% | Added |
| Carnegie Capital Asset Management, LLC | 10,851 | $574.7K | 0.01% | +10,851 | New |
| Greenland Capital Management LP | 10,800 | $572.0K | 0.11% | +4,300+66.2% | Added |
| Newbridge Financial Services Group, Inc. | 10,798 | $571.9K | 0.09% | +149+1.4% | Added |
| Capital Performance Advisors LLP | 10,516 | $556.9K | 0.04% | 00.0% | Unchanged |
| Bartlett & Co. Wealth Management LLC | 9,700 | $540.9K | 0.01% | +1,300+15.5% | Added |
| Icon Wealth Advisors, LLC | 10,000 | $537.5K | 0.03% | +900+9.9% | Added |
| Atria Investments LLC | 10,088 | $534.3K | 0.01% | −2,732−21.3% | Reduced |