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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.

Q4 2025 vs. Q3 2025

How the institutions holding Main Street Capital CORP changed between Q3 2025 and Q4 2025.

All holders in Q4 2025All holders in Q3 2025

13F holders of MAIN: Q3 2025 compared with Q4 2025
MeasureQ3 2025Of which not filed for Q4 2025Q4 2025Change
Holders4088431+31
Shares20.1M40.6K20.9M+858.1K (+4.3%)
Value$1.27B$2.59M$1.26B−$5.41M (−0.4%)

8 institutions that held it in Q3 2025 haven't filed for Q4 2025 yet. Not filing isn't selling, so the changes leave them out.

New holders (68)

Institutions that held Main Street Capital CORP at the end of Q4 2025 but not at the end of Q3 2025.

Institutions new to MAIN in Q4 2025
InstitutionSharesValue% of portfolio
Jane Street Group, LLC314,648$19.0M0.02%
Tudor Investment Corp Et Al238,864$14.4M0.08%
Bridgelight Financial Advisors, Inc.135,099$8.16M6.95%
Fund Advisors of America Inc55,845$3.37M3.09%
ExodusPoint Capital Management, LP53,508$3.23M0.04%
Aquatic Capital Management LLC27,779$1.68M0.05%
Castleview Partners, LLC23,680$1.43M0.71%
Massar Capital Management, LP21,364$1.29M0.25%
Trexquant Investment LP18,581$1.12M0.01%
Toroso Investments, LLC18,444$1.11M0.00%
Advisory Advocates, LLC17,595$1.06M1.06%
Gotham Asset Management, LLC17,339$1.05M0.00%
Gsa Capital Partners LLP16,759$1.01M0.09%
Brevan Howard Capital Management LP12,386$748.0K0.01%
Cordoba Advisory Partners LLC12,246$739.4K0.18%
Passumpsic Savings Bank10,620$641.3K0.35%
Signature Equity Partners, LLC9,524$575.2K0.32%
Perennial Investment Advisors, LLC9,094$549.2K0.04%
Burns Matteson Capital Management, LLC8,827$533.1K0.21%
Pinebridge Investments LLC8,397$507.1K0.00%
Sepio Capital, LP8,000$483.1K0.03%
Maridea Wealth Management LLC7,132$430.7K0.06%
Centiva Capital, LP7,037$425.0K0.03%
Greenland Capital Management LP6,500$392.5K0.06%
United Capital Financial Advisers, LLC5,934$358.4K0.00%
Magnetar Financial LLC5,925$357.8K0.00%
Jain Global LLC4,750$286.9K0.00%
Two Sigma Securities, LLC4,724$285.3K0.04%
Quadrature Capital Ltd4,425$267.2K0.00%
Krane Funds Advisors LLC4,213$254.4K0.01%
Argo Wealth Advisory, LLC4,182$252.6K0.15%
Hilton Head Capital Partners, LLC4,122$248.9K0.15%
LRT Capital Management, LLC3,907$235.9K0.20%
SHP Wealth Management3,777$228.1K0.02%
Warren Averett Asset Management, LLC3,542$213.9K0.00%
Garton & Associates Financial Advisors LLC3,532$213.3K0.12%
Alliance Wealth Advisors, LLC3,500$211.4K0.05%
Catalyst Funds Management Pty Ltd3,500$211.4K0.05%
Titiun Yejiel3,000$181.2K0.22%
Estate Planners Group, LLC2,894$174.7K0.08%
Tucker Asset Management LLC2,447$147.8K0.04%
Simplex Trading, LLC1,723$104.1K0.00%
Centaurus Financial, Inc.1,672$101.0K0.00%
Bayban1,612$97.3K0.09%
Keating Financial Advisory Services, Inc.1,334$80.6K0.01%
Key Capital Management, INC831$50.2K0.05%
Tower Research Capital LLC (TRC)709$42.8K0.00%
Sunrise Financial Services, LLC632$38.2K0.03%
Gilpin Wealth Management, LLC520$31.4K0.02%
Investors Research Corp500$30.2K0.01%
Sankala Group LLC506$28.8K0.02%
Garner Asset Management Corp460$27.8K0.01%
Palladiem, LLC391$23.5K0.02%
Hantz Financial Services, Inc.332$20.0K0.00%
UBS Asset Management Americas Inc331$20.0K0.00%
Kingdom Financial Group LLC.306$18.5K0.01%
Cornerstone Planning Group LLC156$10.0K0.00%
IFC & Insurance Marketing, Inc.169$10.0K0.01%
Ankerstar Wealth, LLC139$8.39K0.01%
McGuire Capital Advisors Inc139$8.39K0.01%
Safe Harbor Fiduciary, LLC120$7.25K0.01%
Cape Investment Advisory, Inc.100$6.04K0.00%
Evolution Wealth Management Inc.100$6.04K0.00%
Essential Partners LLC82$4.95K0.00%
Strategic Wealth Partners, Ltd.53$3.20K0.00%
Danske Bank A/S14$8450.00%
Atlas Capital Advisors LLC5$3540.00%
DV Trading LLC1$600.00%

Sold out (37)

Institutions that held Main Street Capital CORP at the end of Q3 2025 and filed for Q4 2025 without it.

Not filed for Q4 2025 yet (8)

Institutions that held Main Street Capital CORP at the end of Q3 2025 and haven't filed a 13F for Q4 2025. Not filing isn't selling, so they aren't counted as sold out.

Institutions holding MAIN in Q3 2025 that haven't filed for Q4 2025
InstitutionShares, Q3 2025Value, Q3 2025
AllSquare Wealth Management LLC13,675$869.6K
Pinebridge Investments, L.P.11,712$744.8K
AXA Investment Managers S.A.8,716$554.3K
Apexium Financial, LP5,435$345.6K
Optimum Investment Advisors500$31.8K
Lowe Wealth Advisors, LLC350$22.3K
Accredited Wealth Management, LLC103$9.90K
Creekmur Asset Management LLC111$7.08K