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Livermore
ZHEN

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, Q4 2025

Institutional positions in Main Street Capital CORP as of Dec 31, 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
431
+31 vs. Q3 2025
Shares held
20.9M
+858.1K (+4.3%) vs. Q3 2025
Total value
$1.26B
−$5.41M (−0.4%) vs. Q3 2025
New holders
68
145 more added
Sold out
37
120 more reduced

8 institutions that held it in Q3 2025 haven't filed for Q4 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q3 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.

Institutional holdersQ4 2025: 431 institutions
Q1 2021: 230 institutionsQ2 2021: 228 institutionsQ3 2021: 236 institutionsQ4 2021: 257 institutionsQ1 2022: 256 institutionsQ2 2022: 244 institutionsQ3 2022: 248 institutionsQ4 2022: 273 institutionsQ1 2023: 273 institutionsQ2 2023: 289 institutionsQ3 2023: 292 institutionsQ4 2023: 313 institutionsQ1 2024: 326 institutionsQ2 2024: 340 institutionsQ3 2024: 354 institutionsQ4 2024: 401 institutionsQ1 2025: 393 institutionsQ2 2025: 405 institutionsQ3 2025: 408 institutionsQ4 2025: 431 institutionsQ1 2026: 423 institutionsQ2 2026: 401 institutions
Value heldQ4 2025: $1.26B
Q1 2021: $511.5MQ2 2021: $488.5MQ3 2021: $508.1MQ4 2021: $558.7MQ1 2022: $546.5MQ2 2022: $533.6MQ3 2022: $491.5MQ4 2022: $571.7MQ1 2023: $617.8MQ2 2023: $660.3MQ3 2023: $716.5MQ4 2023: $752.3MQ1 2024: $804.4MQ2 2024: $869.4MQ3 2024: $931.0MQ4 2024: $1.10BQ1 2025: $1.07BQ2 2025: $1.17BQ3 2025: $1.27BQ4 2025: $1.26BQ1 2026: $1.24BQ2 2026: $1.18B
Institutions holding MAIN and their total value by quarter
QuarterHoldersValue
Q2 2026401$1.18B
Q1 2026423$1.24B
Q4 2025431$1.26B
Q3 2025408$1.27B
Q2 2025405$1.17B
Q1 2025393$1.07B
Q4 2024401$1.10B
Q3 2024354$931.0M
Q2 2024340$869.4M
Q1 2024326$804.4M
Q4 2023313$752.3M
Q3 2023292$716.5M
Q2 2023289$660.3M
Q1 2023273$617.8M
Q4 2022273$571.7M
Q3 2022248$491.5M
Q2 2022244$533.6M
Q1 2022256$546.5M
Q4 2021257$558.7M
Q3 2021236$508.1M
Q2 2021228$488.5M
Q1 2021230$511.5M

Institutions, Q4 2025

Shares, value and share of portfolio for each institution holding Main Street Capital CORP; share changes are against Q3 2025.

Institutions holding MAIN in Q4 2025
InstitutionSharesValue% of portfolioChange in sharesAction
Stratos Wealth Partners, LTD.9,063$547.3K0.01%−853−8.6%Reduced
Burns Matteson Capital Management, LLC8,827$533.1K0.21%+8,827New
Vertex Planning Partners, LLC8,583$518.3K0.12%00.0%Unchanged
Perigon Wealth Management, LLC8,544$516.0K0.01%−140−1.6%Reduced
L & S Advisors Inc–$510.3K0.05%––
Bartlett & Co. Wealth Management LLC8,400$507.3K0.01%00.0%Unchanged
Pinebridge Investments LLC8,397$507.1K0.00%+8,397New
Ameriflex Group, Inc.8,295$500.9K0.26%−11,367−57.8%Reduced
Innova Wealth Partners8,247$498.1K0.25%+40.0%Added
Disciplined Investors, L.L.C.8,150$492.2K0.32%00.0%Unchanged
Sepio Capital, LP8,000$483.1K0.03%+8,000New
Merit Financial Group, LLC7,927$478.7K0.00%+2,567+47.9%Added
Jones Financial Companies LLLP7,820$472.3K0.00%+2,654+51.4%Added
Golden State Equity Partners7,688$464.3K0.07%00.0%Unchanged
Kingsview Wealth Management, LLC7,537$455.2K0.01%−1,117−12.9%Reduced
Triumph Capital Management7,499$452.8K0.10%+779+11.6%Added
Fiduciary Group LLC7,353$444.1K0.04%00.0%Unchanged
Castle Rock Wealth Management, LLC7,178$443.9K0.10%−646−8.3%Reduced
Argent Trust Co7,245$437.5K0.02%+76+1.1%Added
Capital Investment Advisory Services, LLC7,162$432.5K0.03%+71+1.0%Added
Maridea Wealth Management LLC7,132$430.7K0.06%+7,132New
Schubert & Co7,071$427.0K0.34%00.0%Unchanged
Centiva Capital, LP7,037$425.0K0.03%+7,037New
Alpha Cubed Investments, LLC6,921$418.0K0.01%−1,083−13.5%Reduced
Sentinel Trust Co Lba6,770$409.0K0.04%−656−8.8%Reduced
United Capital Management of KS, Inc.6,766$408.6K0.06%+47+0.7%Added
LBMC Investment Advisors, LLC6,636$400.7K0.02%+6+0.1%Added
FSM Wealth Advisors, LLC6,517$393.6K0.05%+112+1.7%Added
Greenland Capital Management LP6,500$392.5K0.06%+6,500New
Virtus Investment Advisers, Inc.6,331$382.3K0.10%−530−7.7%Reduced
GWM Advisors LLC6,320$381.7K0.00%−650−9.3%Reduced
Moors & Cabot, Inc.6,215$375.3K0.02%00.0%Unchanged
VPR Management LLC6,176$373.0K0.17%+2,052+49.8%Added
Glenview Trust Co6,100$368.4K0.01%00.0%Unchanged
Iams Wealth Management, LLC6,100$368.4K0.13%00.0%Unchanged
RDA Financial Network6,093$368.0K0.09%00.0%Unchanged
Csenge Advisory Group6,023$363.7K0.02%00.0%Unchanged
American National Bank6,000$362.3K0.03%00.0%Unchanged
Strategic Financial Concepts, LLC5,966$360.3K0.33%+2,361+65.5%Added
Sequoia Financial Advisors, LLC5,935$358.4K0.00%+2,775+87.8%Added
United Capital Financial Advisers, LLC5,934$358.4K0.00%+5,934New
Magnetar Financial LLC5,925$357.8K0.00%+5,925New
Crestwood Advisors Group LLC5,847$353.1K0.01%00.0%Unchanged
Stratos Wealth Advisors, LLC5,826$351.9K0.02%+220+3.9%Added
The PNC Financial Services Group, Inc.5,584$337.2K0.00%−5,174−48.1%Reduced
Brookstone Capital Management5,481$331.0K0.00%+425+8.4%Added
Manske Wealth Management5,416$327.1K0.10%00.0%Unchanged
Core Wealth Partners LLC5,408$326.6K0.15%00.0%Unchanged
Freedom Financial Partners LLC5,356$323.4K0.12%+170+3.3%Added
United Advisor Group, LLC5,350$323.1K0.04%−2,428−31.2%Reduced
Wellington Shields Capital Management, LLC5,350$323.1K0.05%00.0%Unchanged
Green Square Capital Advisors LLC5,326$321.6K0.03%00.0%Unchanged
Kovack Advisors, Inc.5,301$320.1K0.02%−11−0.2%Reduced
Harbor Investment Advisory, LLC5,290$319.5K0.02%00.0%Unchanged
Whitener Capital Management, Inc.5,160$311.7K0.07%+27+0.5%Added
Thrive Wealth Management, LLC5,073$306.4K0.05%−66−1.3%Reduced
Plancorp, LLC5,025$303.5K0.01%00.0%Unchanged
Intrepid Capital Management Inc5,000$301.9K0.12%00.0%Unchanged
Oak Harbor Wealth Partners, LLC5,000$301.9K0.07%00.0%Unchanged
Sound View Wealth Advisors Group, LLC4,996$301.7K0.02%−1,314−20.8%Reduced
Jain Global LLC4,750$286.9K0.00%+4,750New
Sagespring Wealth Partners, LLC4,733$285.8K0.01%+10.0%Added
Two Sigma Securities, LLC4,724$285.3K0.04%+4,724New
US Bancorp4,688$283.1K0.00%+679+16.9%Added
Stephens Inc4,620$279.0K0.00%+8+0.2%Added
Cullen/Frost Bankers, Inc.4,600$277.8K0.00%+600+15.0%Added
Fisher Asset Management, LLC4,540$274.2K0.00%−582−11.4%Reduced
Colonial River Wealth Management, LLC4,466$269.7K0.10%−325−6.8%Reduced
Axxcess Wealth Management, LLC4,466$269.7K0.00%−325−6.8%Reduced
Quadrature Capital Ltd4,425$267.2K0.00%+4,425New
Mirae Asset Global Investments Co., Ltd.4,335$261.8K0.00%−792−15.4%Reduced
Accurate Wealth Management, LLC4,248$259.9K0.03%+61+1.5%Added
Wesbanco Bank Inc4,293$259.3K0.01%+518+13.7%Added
Procyon Private Wealth Partners, LLC4,233$255.6K0.01%−45−1.1%Reduced
Nabity-Jensen Investment Management Inc4,218$254.7K0.17%+145+3.6%Added
Brown Advisory Inc4,217$254.7K0.00%00.0%Unchanged
Krane Funds Advisors LLC4,213$254.4K0.01%+4,213New
Argo Wealth Advisory, LLC4,182$252.6K0.15%+4,182New
Riverstone Advisors, LLC4,158$251.1K0.12%−600−12.6%Reduced
Northwestern Mutual Wealth Management Co4,140$250.0K0.00%+1,269+44.2%Added
State of Alaska, Department of Revenue4,127$249.0K0.00%+212+5.4%Added
Hilton Head Capital Partners, LLC4,122$248.9K0.15%+4,122New
CAP Partners, LLC4,010$242.2K0.14%−71−1.7%Reduced
Matthew Goff Investment Advisor, LLC4,000$241.6K0.04%00.0%Unchanged
Financial Advisors Network, Inc.4,000$241.6K0.03%00.0%Unchanged
Turtle Creek Wealth Advisors, LLC4,000$241.6K0.02%00.0%Unchanged
Evergreen Capital Management LLC3,994$241.2K0.01%+541+15.7%Added
Koshinski Asset Management, Inc.3,946$238.3K0.02%−394−9.1%Reduced
Nelson, Van Denburg & Campbell Wealth Management Group, LLC3,921$236.8K0.01%00.0%Unchanged
LRT Capital Management, LLC3,907$235.9K0.20%+3,907New
Kaizen Financial Strategies3,907$235.9K0.10%+33+0.9%Added
Nisa Investment Advisors, LLC3,900$235.5K0.00%00.0%Unchanged
Cookson Peirce & Co Inc3,840$231.9K0.01%−216−5.3%Reduced
Old National Bancorp3,793$229.1K0.00%+90+2.4%Added
Plan Group Financial, LLC3,781$228.3K0.06%−985−20.7%Reduced
SHP Wealth Management3,777$228.1K0.02%+3,777New
Wiley Bros.-Aintree Capital, LLC3,772$227.8K0.00%−4−0.1%Reduced
Linscomb & Williams, Inc.3,754$226.7K0.01%−1,246−24.9%Reduced
Cornerstone Wealth Management, LLC3,674$221.9K0.01%+20+0.5%Added
Focused Wealth Management, Inc3,633$219.4K0.02%+12+0.3%Added