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, Q3 2025
Institutional positions in Main Street Capital CORP as of Sep 30, 2025. 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
- 408
- +12 vs. Q2 2025
- Shares held
- 20.1M
- +408.8K (+2.1%) vs. Q2 2025
- Total value
- $1.27B
- +$109.2M (+9.4%) vs. Q2 2025
- New holders
- 44
- 154 more added
- Sold out
- 32
- 97 more reduced
9 institutions that held it in Q2 2025 haven't filed for Q3 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q2 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, Q3 2025
Shares, value and share of portfolio for each institution holding Main Street Capital CORP; share changes are against Q2 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Virtus Investment Advisers, Inc. | 6,861 | $436.3K | 0.12% | −1,897−21.7% | Reduced |
| GWM Advisors LLC | 6,970 | $443.2K | 0.00% | +1,569+29.1% | Added |
| Schubert & Co | 7,071 | $449.6K | 0.33% | 00.0% | Unchanged |
| Capital Investment Advisory Services, LLC | 7,091 | $450.9K | 0.04% | +89+1.3% | Added |
| Oxford Asset Management LLP | 7,156 | $455.1K | 0.15% | +7,156 | New |
| Argent Trust Co | 7,169 | $455.9K | 0.02% | +71+1.0% | Added |
| Susquehanna International Group, LLP | 7,344 | $467.0K | 0.00% | +7,344 | New |
| Fiduciary Group LLC | 7,353 | $467.6K | 0.04% | 00.0% | Unchanged |
| Sentinel Trust Co Lba | 7,426 | $472.0K | 0.05% | −1,222−14.1% | Reduced |
| Global Retirement Partners, LLC | 7,478 | $475.5K | 0.01% | −74−1.0% | Reduced |
| Captrust Financial Advisors | 7,586 | $482.4K | 0.00% | −19−0.2% | Reduced |
| Golden State Equity Partners | 7,688 | $488.9K | 0.08% | 00.0% | Unchanged |
| United Advisor Group, LLC | 7,778 | $494.6K | 0.07% | +125+1.6% | Added |
| Castle Rock Wealth Management, LLC | 7,824 | $499.1K | 0.11% | −1,119−12.5% | Reduced |
| Mutual Advisors, LLC | 8,773 | $505.5K | 0.01% | −246−2.7% | Reduced |
| SG Americas Securities, LLC | 7,995 | $508.0K | 0.00% | −2,811−26.0% | Reduced |
| Alpha Cubed Investments, LLC | 8,004 | $508.9K | 0.02% | +1,090+15.8% | Added |
| Disciplined Investors, L.L.C. | 8,150 | $518.3K | 0.37% | 00.0% | Unchanged |
| Innova Wealth Partners | 8,243 | $524.2K | 0.28% | +30.0% | Added |
| Virtu Financial LLC | 8,287 | $527.0K | 0.03% | +8,287 | New |
| L & S Advisors Inc | – | $531.4K | 0.05% | – | – |
| Bartlett & Co. Wealth Management LLC | 8,400 | $534.2K | 0.01% | 00.0% | Unchanged |
| AE Wealth Management LLC | 8,449 | $537.3K | 0.00% | +2,308+37.6% | Added |
| Vertex Planning Partners, LLC | 8,583 | $545.8K | 0.10% | 00.0% | Unchanged |
| Kingsview Wealth Management, LLC | 8,654 | $550.3K | 0.01% | +30.0% | Added |
| Perigon Wealth Management, LLC | 8,684 | $552.2K | 0.01% | +72+0.8% | Added |
| AXA Investment Managers S.A. | 8,716 | $554.3K | 0.00% | +8,716 | New |
| JustInvest LLC | 9,094 | $578.3K | 0.01% | −207−2.2% | Reduced |
| Icon Wealth Advisors, LLC | 9,100 | $578.7K | 0.04% | 00.0% | Unchanged |
| AlTi Global, Inc. | 9,150 | $581.8K | 0.01% | 00.0% | Unchanged |
| Balboa Wealth Partners | 9,292 | $590.9K | 0.10% | 00.0% | Unchanged |
| Verity Asset Management, Inc. | 9,537 | $606.5K | 0.20% | −381−3.8% | Reduced |
| BostonPremier Wealth LLC | 9,550 | $607.3K | 0.30% | 00.0% | Unchanged |
| Cahill Financial Advisors Inc | 9,745 | $619.7K | 0.07% | −151−1.5% | Reduced |
| Stratos Wealth Partners, LTD. | 9,916 | $630.6K | 0.01% | +198+2.0% | Added |
| Equitable Holdings, Inc. | 10,373 | $659.6K | 0.00% | +495+5.0% | Added |
| Capital Performance Advisors LLP | 10,516 | $668.7K | 0.11% | 00.0% | Unchanged |
| Colony Group, LLC | 10,531 | $669.7K | 0.00% | +1,599+17.9% | Added |
| Harbour Investments, Inc. | 10,558 | $671.4K | 0.02% | +1,127+11.9% | Added |
| The PNC Financial Services Group, Inc. | 10,758 | $684.1K | 0.00% | +19+0.2% | Added |
| Truist Financial Corp | 10,925 | $694.7K | 0.00% | +133+1.2% | Added |
| HB Wealth Management, LLC | 11,071 | $704.0K | 0.00% | +6,614+148.4% | Added |
| XTX Topco Ltd | 11,086 | $705.0K | 0.04% | +11,086 | New |
| Nations Financial Group Inc, | 11,291 | $718.0K | 0.04% | +968+9.4% | Added |
| Guggenheim Capital LLC | 11,506 | $731.7K | 0.01% | −986−7.9% | Reduced |
| Eagle Global Advisors LLC | 11,515 | $732.2K | 0.03% | 00.0% | Unchanged |
| Pinebridge Investments, L.P. | 11,712 | $744.8K | 0.01% | +6,047+106.7% | Added |
| Susquehanna Portfolio Strategies, LLC | 11,773 | $748.6K | 0.01% | +1,646+16.3% | Added |
| Inscription Capital, LLC | 11,780 | $749.1K | 0.08% | −264−2.2% | Reduced |
| Empowered Funds, LLC | 12,024 | $764.6K | 0.01% | +2,593+27.5% | Added |
| Catalyst Capital Advisors LLC | 12,128 | $771.2K | 0.02% | 00.0% | Unchanged |
| Lido Advisors, LLC | 12,311 | $782.9K | 0.00% | −6,043−32.9% | Reduced |
| Mercer Global Advisors Inc | 12,412 | $789.3K | 0.00% | −816−6.2% | Reduced |
| Mindset Wealth Management, LLC | 12,520 | $796.2K | 0.22% | 00.0% | Unchanged |
| Tradition Wealth Management, LLC | 12,579 | $799.9K | 0.06% | +121+1.0% | Added |
| D.B. Root & Company, LLC | 12,731 | $809.6K | 0.21% | −130−1.0% | Reduced |
| Nomura Asset Management Co Ltd | 12,775 | $812.4K | 0.00% | −390−3.0% | Reduced |
| Atria Investments LLC | 12,845 | $816.8K | 0.01% | −103−0.8% | Reduced |
| NewEdge Wealth, LLC | 14,584 | $834.4K | 0.01% | +500+3.6% | Added |
| RMR Wealth Builders | 13,175 | $837.8K | 0.07% | +27+0.2% | Added |
| PFG Investments, LLC | 13,444 | $854.9K | 0.04% | −648−4.6% | Reduced |
| Stifel Financial Corp | 13,461 | $856.0K | 0.00% | +1,807+15.5% | Added |
| AllSquare Wealth Management LLC | 13,675 | $869.6K | 0.46% | −300−2.1% | Reduced |
| MAI Capital Management | 13,748 | $874.2K | 0.01% | +54+0.4% | Added |
| Financial Security Advisor, Inc. | 13,763 | $875.2K | 0.19% | +373+2.8% | Added |
| Concurrent Investment Advisors, LLC | 14,031 | $892.2K | 0.02% | −2,745−16.4% | Reduced |
| Westbourne Investment Advisors, Inc. | 14,100 | $896.6K | 0.25% | +1,600+12.8% | Added |
| Sanctuary Advisors, LLC | 14,639 | $930.9K | 0.01% | +150+1.0% | Added |
| Susquehanna Fundamental Investments, LLC | 14,941 | $950.1K | 0.04% | +8,841+144.9% | Added |
| Chilton Capital Management LLC | 14,987 | $953.0K | 0.03% | 00.0% | Unchanged |
| Belpointe Asset Management LLC | 15,030 | $955.8K | 0.04% | 00.0% | Unchanged |
| Fortis Capital Advisors, LLC | 15,030 | $955.8K | 0.15% | 00.0% | Unchanged |
| Venturi Wealth Management, LLC | 15,583 | $990.9K | 0.05% | 00.0% | Unchanged |
| Quest Partners LLC | 15,996 | $1.02M | 0.07% | −26,476−62.3% | Reduced |
| WCG Wealth Advisors LLC | 16,265 | $1.03M | 0.06% | 00.0% | Unchanged |
| Union Bancaire Privee, UBP SA | 16,319 | $1.04M | 0.02% | 00.0% | Unchanged |
| Savvy Advisors, Inc. | 16,360 | $1.04M | 0.05% | +1,805+12.4% | Added |
| Bay Colony Advisory Group, Inc d/b/a Bay Colony Advisors | 16,568 | $1.05M | 0.12% | +679+4.3% | Added |
| Uncommon Cents Investing LLC | 16,627 | $1.06M | 0.26% | +190+1.2% | Added |
| SMH Capital Advisors Inc | 18,678 | $1.06M | 2.17% | +48+0.3% | Added |
| Independent Financial Group, LLC | 16,850 | $1.07M | 0.03% | +1,456+9.5% | Added |
| Ronald Blue Trust, Inc. | 17,034 | $1.08M | 0.01% | +75+0.4% | Added |
| Allworth Financial LP | 17,069 | $1.09M | 0.00% | −1,069−5.9% | Reduced |
| Brasada Capital Management, LP | 17,000 | $1.09M | 0.18% | 00.0% | Unchanged |
| Callahan Advisors, LLC | 17,946 | $1.14M | 0.10% | +888+5.2% | Added |
| ProShare Advisors LLC | 17,972 | $1.14M | 0.00% | +1,300+7.8% | Added |
| Cerity Partners LLC | 18,265 | $1.16M | 0.00% | −384−2.1% | Reduced |
| MML Investors Services, LLC | 19,001 | $1.21M | 0.00% | +314+1.7% | Added |
| SS&H Financial Advisors, Inc. | 19,200 | $1.22M | 0.37% | 00.0% | Unchanged |
| Mackenzie Financial Corp | 19,373 | $1.23M | 0.00% | +70+0.4% | Added |
| Milestone Asset Management, LLC | 19,437 | $1.24M | 0.23% | +2,570+15.2% | Added |
| Janney Montgomery Scott LLC | 19,450 | $1.24M | 0.00% | +1,033+5.6% | Added |
| Ameriflex Group, Inc. | 19,662 | $1.25M | 0.47% | +19,662 | New |
| TCG Advisory Services, LLC | 20,213 | $1.29M | 0.05% | −749−3.6% | Reduced |
| Simon Quick Advisors, LLC | 20,530 | $1.31M | 0.06% | +40.0% | Added |
| Arete Wealth Advisors, LLC | 20,768 | $1.32M | 0.08% | +401+2.0% | Added |
| Generali Investments CEE, investicni spolecnost, a.s. | 20,785 | $1.32M | 0.10% | −2,125−9.3% | Reduced |
| Credit Agricole S A | 20,933 | $1.33M | 0.00% | +20,933 | New |
| Manufacturers Life Insurance Company, The | 21,382 | $1.36M | 0.00% | +2,501+13.2% | Added |
| Baird Financial Group, Inc. | 21,644 | $1.38M | 0.00% | −2,969−12.1% | Reduced |