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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 2026

Institutional positions in Main Street Capital CORP as of Jun 30, 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
401
−19 vs. Q1 2026
Shares held
22.7M
−496.9K (−2.1%) vs. Q1 2026
Total value
$1.18B
−$53.5M (−4.4%) vs. Q1 2026
New holders
43
148 more added
Sold out
62
122 more reduced

3 institutions that held it in Q1 2026 haven't filed for Q2 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q1 2026: 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 2026: 401 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 2026: $1.18B
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 2026

Shares, value and share of portfolio for each institution holding Main Street Capital CORP; share changes are against Q1 2026.

Institutions holding MAIN in Q2 2026
InstitutionSharesValue% of portfolioChange in sharesAction
Stratos Wealth Partners, LTD.8,083$419.4K0.00%−481−5.6%Reduced
Innova Wealth Partners8,082$419.3K0.17%−144−1.8%Reduced
Whipplewood Advisors, LLC8,054$417.8K0.28%+2,846+54.6%Added
Savant Capital, LLC7,887$415.0K0.00%+7,887New
Perigon Wealth Management, LLC7,826$406.0K0.01%−719−8.4%Reduced
Ameriflex Group, Inc.7,695$399.2K0.16%−1,000−11.5%Reduced
Capital Investment Advisory Services, LLC7,413$384.6K0.02%+118+1.6%Added
Brighton Jones LLC6,977$361.9K0.01%+73+1.1%Added
We Are One Seven, LLC6,908$358.4K0.01%−108,088−94.0%Reduced
Argent Trust Co6,906$358.3K0.01%−445−6.1%Reduced
Castle Rock Wealth Management, LLC6,844$356.0K0.07%−305−4.3%Reduced
Virtue Capital Management, LLC6,856$355.7K0.05%−4,902−41.7%Reduced
Sequoia Financial Advisors, LLC6,691$347.1K0.00%+549+8.9%Added
Schonfeld Strategic Advisors LLC6,686$346.9K0.00%−36,346−84.5%Reduced
FSM Wealth Advisors, LLC6,638$344.4K0.04%+136+2.1%Added
LBMC Investment Advisors, LLC6,636$344.3K0.02%00.0%Unchanged
VPR Management LLC6,336$328.7K0.13%+62+1.0%Added
Compass Capital Management, Inc6,325$328.1K0.02%00.0%Unchanged
Integrity Alliance, LLC.6,215$322.5K0.01%−520−7.7%Reduced
Csenge Advisory Group6,188$321.0K0.01%+20.0%Added
United Capital Management of KS, Inc.6,132$318.1K0.04%+68+1.1%Added
Glenview Trust Co6,100$316.5K0.00%00.0%Unchanged
Iams Wealth Management, LLC6,100$316.5K0.10%00.0%Unchanged
BWM Planning, LLC6,078$315.3K0.07%00.0%Unchanged
Thrivent Financial for Lutherans6,048$314.0K0.00%+874+16.9%Added
American National Bank6,000$311.3K0.03%00.0%Unchanged
DRW Securities, LLC5,870$304.5K0.02%+1,932+49.1%Added
Crestwood Advisors Group LLC5,847$303.3K0.00%00.0%Unchanged
United Capital Financial Advisers, LLC5,800$300.9K0.00%+222+4.0%Added
RDA Financial Network5,793$300.6K0.07%−300−4.9%Reduced
Freedom Financial Partners LLC5,675$294.4K0.10%+98+1.8%Added
Moors & Cabot, Inc.5,600$290.5K0.01%−615−9.9%Reduced
The PNC Financial Services Group, Inc.5,590$290.0K0.00%+729+15.0%Added
Gsa Capital Partners LLP5,465$284.0K0.02%−31,905−85.4%Reduced
Stratos Wealth Advisors, LLC5,420$281.2K0.02%−215−3.8%Reduced
Core Wealth Partners LLC5,408$280.6K0.12%00.0%Unchanged
Milestone Asset Management, LLC5,379$279.1K0.04%−15,306−74.0%Reduced
Green Square Capital Advisors LLC5,326$276.3K0.03%00.0%Unchanged
Harbour Investments, Inc.5,268$273.3K0.00%−256−4.6%Reduced
Schubert & Co5,234$271.5K0.19%−1,837−26.0%Reduced
Prime Capital Investment Advisors, LLC5,233$271.5K0.00%+41+0.8%Added
Manske Wealth Management5,200$269.8K0.07%00.0%Unchanged
GWN Securities Inc.5,173$268.4K0.04%+5,173New
Harbor Investment Advisory, LLC5,165$268.0K0.02%−125−2.4%Reduced
Kovack Advisors, Inc.5,150$267.9K0.01%−155−2.9%Reduced
Virtus Investment Advisers, Inc.5,161$267.8K0.06%−219−4.1%Reduced
Nations Financial Group Inc,5,128$266.1K0.01%−11,517−69.2%Reduced
Nabity-Jensen Investment Management Inc5,025$260.7K0.16%+675+15.5%Added
Intrepid Capital Management Inc5,000$259.4K0.09%00.0%Unchanged
Oak Harbor Wealth Partners, LLC5,000$259.4K0.10%00.0%Unchanged
Global Assets Advisory, LLC4,921$256.4K0.06%+1,712+53.3%Added
Steel Peak Wealth Management LLC4,890$253.7K0.01%+774+18.8%Added
Wealthfront Advisers LLC4,876$253.0K0.00%+4,876New
Compton Financial Group, LLC4,870$252.6K0.05%+42+0.9%Added
EP Wealth Advisors, LLC4,772$247.6K0.00%+4,772New
Capstone Investment Advisors, LLC4,715$244.6K0.00%+4,715New
US Bancorp4,688$243.2K0.00%−16−0.3%Reduced
VestGen Advisors, LLC4,649$241.2K0.01%−3,949−45.9%Reduced
Stephens Inc4,637$240.6K0.00%+9+0.2%Added
Whitener Capital Management, Inc.4,629$240.2K0.05%−404−8.0%Reduced
Cullen/Frost Bankers, Inc.4,602$238.8K0.00%00.0%Unchanged
Nelson, Van Denburg & Campbell Wealth Management Group, LLC4,553$236.2K0.01%−471−9.4%Reduced
Destination Wealth Management4,494$233.1K0.01%00.0%Unchanged
Riverstone Advisors, LLC4,408$228.7K0.09%00.0%Unchanged
RiverFront Investment Group, LLC4,366$226.5K0.00%+4,366New
Wellington Shields Capital Management, LLC4,267$221.4K0.03%−750−14.9%Reduced
Procyon Private Wealth Partners, LLC4,233$219.6K0.01%00.0%Unchanged
Colonial River Wealth Management, LLC4,211$218.4K0.06%−255−5.7%Reduced
United Advisor Group, LLC4,201$217.9K0.02%+10.0%Added
Sound View Wealth Advisors Group, LLC4,197$217.8K0.01%−100−2.3%Reduced
Hilton Head Capital Partners, LLC4,178$216.8K0.11%+45+1.1%Added
Cornerstone Wealth Management, LLC4,133$214.4K0.01%+4,133New
State of Alaska, Department of Revenue4,127$214.0K0.00%00.0%Unchanged
Keybank National Association4,100$212.7K0.00%00.0%Unchanged
Matthew Goff Investment Advisor, LLC4,000$207.5K0.04%00.0%Unchanged
Turtle Creek Wealth Advisors, LLC4,000$207.5K0.01%00.0%Unchanged
Argo Wealth Advisory, LLC3,986$206.8K0.11%−196−4.7%Reduced
Plan Group Financial, LLC3,967$205.8K0.04%+18+0.5%Added
CAP Partners, LLC3,954$205.1K0.10%−33−0.8%Reduced
Brevan Howard Capital Management LP3,945$204.7K0.00%−5,946−60.1%Reduced
Bay Rivers Group3,910$202.9K0.07%+3,910New
Nisa Investment Advisors, LLC3,900$202.3K0.00%00.0%Unchanged
Farther Finance Advisors, LLC3,818$198.1K0.00%−79−2.0%Reduced
Global Retirement Partners, LLC3,639$188.8K0.00%+3,639New
Heritage Wealth Advisors3,600$186.8K0.01%00.0%Unchanged
Centaurus Financial, Inc.2,975$154.0K0.01%+2+0.1%Added
Northwestern Mutual Wealth Management Co2,928$151.9K0.00%−771−20.8%Reduced
SOA Wealth Advisors, LLC.2,923$151.6K0.03%+42+1.5%Added
HHM Wealth Advisors, LLC2,709$140.5K0.01%−76−2.7%Reduced
Wellington Shields & Co., LLC2,600$134.9K0.03%+80+3.2%Added
Quantbot Technologies LP2,475$128.4K0.01%−86,267−97.2%Reduced
Ameritas Advisory Services, LLC2,330$120.9K0.00%+2,330New
Colonial Trust Co2,240$116.2K0.01%−175−7.2%Reduced
Cassaday & Co Wealth Management LLC2,225$115.4K0.00%00.0%Unchanged
IFG Advisory, LLC2,218$115.1K0.00%+2,218New
Vaughan Nelson Investment Management, L.P.2,025$105.1K0.00%00.0%Unchanged
National Bank of Canada1,995$103.5K0.00%00.0%Unchanged
AdvisorNet Financial, Inc1,985$103.0K0.00%00.0%Unchanged
Parallel Advisors, LLC1,967$102.1K0.00%−209−9.6%Reduced
Private Trust Co NA1,869$97.0K0.01%00.0%Unchanged