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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.

13F holders, Q2 2025

Institutional positions in Main Street Capital CORP as of Jun 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
405
+16 vs. Q1 2025
Shares held
19.7M
+878.7K (+4.7%) vs. Q1 2025
Total value
$1.17B
+$101.6M (+9.5%) vs. Q1 2025
New holders
51
148 more added
Sold out
35
108 more reduced

4 institutions that held it in Q1 2025 haven't filed for Q2 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q1 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 holdersQ2 2025: 405 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 heldQ2 2025: $1.17B
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, Q2 2025

Shares, value and share of portfolio for each institution holding Main Street Capital CORP; share changes are against Q1 2025.

Institutions holding MAIN in Q2 2025
InstitutionSharesValue% of portfolioChange in sharesAction
Dunhill Financial, LLC1$350.00%−125−99.2%Reduced
Huntington National Bank1$590.00%00.0%Unchanged
Total Investment Management Inc1$720.00%+1New
Creekmur Asset Management LLC1$760.00%00.0%Unchanged
Barclays PLC2$1180.00%−59,283−100.0%Reduced
Smallwood Wealth Investment Management, LLC2$1180.00%00.0%Unchanged
Danske Bank A/S4$2360.00%−4−50.0%Reduced
Delta Asset Management LLC4$2360.00%00.0%Unchanged
Evermay Wealth Management LLC10$5910.00%+10New
C M Bidwell & Associates Ltd11$6500.00%00.0%Unchanged
Golden State Wealth Management, LLC14$8270.00%+14New
Atlantic Union Bankshares Corp15$8870.00%+15New
Roble, Belko & Company, Inc20$1.00K0.00%00.0%Unchanged
FMR LLC17$1.00K0.00%−11−39.3%Reduced
Farmers & Merchants Investments Inc19$1.12K0.00%00.0%Unchanged
GAMMA Investing LLC19$1.12K0.00%00.0%Unchanged
SWAN Capital LLC20$1.18K0.00%00.0%Unchanged
Medallion Wealth Advisors, LLC22$1.30K0.00%00.0%Unchanged
North Capital, Inc.25$1.48K0.00%00.0%Unchanged
HighMark Wealth Management LLC34$2.01K0.00%00.0%Unchanged
Covestor Ltd57$3.00K0.00%00.0%Unchanged
St Germain D J Co Inc56$3.34K0.00%+56New
SJS Investment Consulting Inc.57$3.38K0.00%+1+1.8%Added
Stephens Consulting, LLC68$4.02K0.00%−111−62.0%Reduced
PayPay Securities Corp73$4.31K0.21%+73Added
BOK Financial Private Wealth, Inc.100$5.91K0.00%00.0%Unchanged
Founders Capital Management100$5.91K0.00%00.0%Unchanged
Cape Investment Advisory, Inc.100$5.91K0.00%00.0%Unchanged
Safe Harbor Fiduciary, LLC120$7.09K0.01%00.0%Unchanged
West Branch Capital LLC125$7.39K0.00%00.0%Unchanged
Murphy & Mullick Capital Management Corp127$7.51K0.01%00.0%Unchanged
JNBA Financial Advisors129$7.62K0.00%00.0%Unchanged
Mid-American Wealth Advisory Group, Inc.145$8.57K0.00%+145New
Versant Capital Management, Inc147$8.71K0.00%00.0%Unchanged
Tidemark, LLC150$8.87K0.00%00.0%Unchanged
Accredited Wealth Management, LLC154$9.10K0.01%+2+1.3%Added
Northwestern Mutual Wealth Management Co156$9.22K0.00%+2+1.3%Added
Salem Investment Counselors Inc160$9.46K0.00%+135+540.0%Added
Assetmark, Inc167$9.87K0.00%−190−53.2%Reduced
Wolff Wiese Magana LLC187$11.1K0.01%+187New
Spire Wealth Management200$11.8K0.00%−500−71.4%Reduced
Lavaca Capital LLC200$11.8K0.00%00.0%Unchanged
Hollencrest Capital Management200$11.8K0.00%+200New
Alerus Financial NA206$12.2K0.00%+206New
Bogart Wealth, LLC215$12.7K0.00%+2+0.9%Added
Crewe Advisors LLC220$13.0K0.00%00.0%Unchanged
Citigroup Inc229$13.5K0.00%+229New
GPS Wealth Strategies Group, LLC230$13.6K0.00%+5+2.2%Added
Archer Investment Corp232$13.7K0.00%+2+0.9%Added
Beacon Capital Management, LLC247$14.6K0.00%+4+1.6%Added
Webster Bank, N. A.300$17.7K0.00%00.0%Unchanged
Manchester Capital Management LLC300$17.7K0.00%00.0%Unchanged
IAG Wealth Partners, LLC300$17.7K0.00%00.0%Unchanged
Brown Brothers Harriman & Co301$17.8K0.00%00.0%Unchanged
Asset Dedication, LLC325$19.2K0.00%00.0%Unchanged
Lowe Wealth Advisors, LLC350$20.7K0.01%−350−50.0%Reduced
Harbor Asset Planning, Inc.372$22.0K0.02%+372New
Wealth Preservation Advisors, LLC400$23.6K0.01%−625−61.0%Reduced
Roxbury Financial LLC423$25.0K0.02%00.0%Unchanged
Federation des caisses Desjardins du Quebec460$27.2K0.00%+130+39.4%Added
Smartleaf Asset Management LLC478$28.2K0.00%+250+109.6%Added
Thurston, Springer, Miller, Herd & Titak, Inc.500$29.6K0.00%00.0%Unchanged
Optimum Investment Advisors500$29.6K0.01%00.0%Unchanged
Moser Wealth Advisors, LLC500$29.6K0.01%00.0%Unchanged
Asset Planning,Inc500$29.6K0.02%00.0%Unchanged
Smithfield Trust Co500$30.0K0.00%00.0%Unchanged
BI Asset Management Fondsmaeglerselskab A/S639$38.0K0.00%−84,926−99.3%Reduced
Prestige Wealth Management Group LLC650$38.4K0.01%00.0%Unchanged
Financial Network Wealth Advisors LLC691$40.8K0.05%+9+1.3%Added
Hazlett, Burt & Watson, Inc.700$41.0K0.02%00.0%Unchanged
Wellington Shields & Co., LLC725$42.8K0.01%00.0%Unchanged
Capital Advisors, Ltd. LLC750$44.0K0.01%00.0%Unchanged
Russell Investments Group, Ltd.782$46.2K0.00%−12−1.5%Reduced
Colonial Trust Advisors822$48.6K0.00%+15+1.9%Added
First Horizon Advisors, Inc.847$50.1K0.00%+847New
Truvestments Capital LLC873$51.6K0.01%00.0%Unchanged
Principal Securities, Inc.873$51.6K0.00%+292+50.3%Added
Point72 (DIFC) Ltd920$54.4K0.00%+920New
EverSource Wealth Advisors, LLC931$55.0K0.00%00.0%Unchanged
NBC Securities, Inc.970$57.0K0.00%+12+1.3%Added
Avion Wealth1,000$59.0K0.01%00.0%Unchanged
Bryn Mawr Trust Co1,000$59.1K0.00%00.0%Unchanged
Winch Advisory Services, LLC1,020$60.3K0.01%+16+1.6%Added
Umb Bank N A1,034$61.1K0.00%00.0%Unchanged
Washington Trust Advisors, Inc.1,129$66.7K0.01%00.0%Unchanged
Financial Management Professionals, Inc.1,196$70.7K0.01%+371+45.0%Added
Talon Private Wealth, LLC1,200$70.9K0.01%+1,200New
Princeton Global Asset Management LLC1,289$76.2K0.01%00.0%Unchanged
Farther Finance Advisors, LLC1,506$89.0K0.00%−1,496−49.8%Reduced
Signaturefd, LLC1,670$98.7K0.00%+143+9.4%Added
IFP Advisors, Inc1,695$100.1K0.00%−577−25.4%Reduced
National Bank of Canada2,090$123.5K0.00%+50+2.5%Added
Compass Financial Services Inc2,210$130.6K0.06%+2,210New
AdvisorNet Financial, Inc2,244$132.6K0.01%+933+71.2%Added
Private Trust Co NA2,258$133.4K0.01%00.0%Unchanged
Parallel Advisors, LLC2,332$137.8K0.00%−1,350−36.7%Reduced
Register Financial Advisors LLC2,443$144.4K0.06%00.0%Unchanged
Leonteq Securities AG2,600$153.7K0.01%+2,600New
Vaughan Nelson Investment Management, L.P.2,650$156.6K0.00%00.0%Unchanged
SOA Wealth Advisors, LLC.2,774$164.0K0.03%+31+1.1%Added