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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, Q1 2026

Institutional positions in Main Street Capital CORP as of Mar 31, 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
423
0 vs. Q4 2025
Shares held
23.4M
+2.63M (+12.7%) vs. Q4 2025
Total value
$1.24B
−$18.1M (−1.4%) vs. Q4 2025
New holders
57
170 more added
Sold out
57
107 more reduced

8 institutions that held it in Q4 2025 haven't filed for Q1 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q4 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 holdersQ1 2026: 423 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 heldQ1 2026: $1.24B
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, Q1 2026

Shares, value and share of portfolio for each institution holding Main Street Capital CORP; share changes are against Q4 2025.

Institutions holding MAIN in Q1 2026
InstitutionSharesValue% of portfolioChange in sharesAction
Price T Rowe Associates Inc2,708,803$143.5M0.02%−25,658−0.9%Reduced
Van Eck Associates Corp2,108,922$111.7M0.08%+976,576+86.2%Added
UBS Group AG1,338,812$70.9M0.01%+726,936+118.8%Added
Morgan Stanley854,585$45.3M0.00%−13,276−1.5%Reduced
Legal & General Group Plc784,021$41.5M0.01%+64,054+8.9%Added
D. E. Shaw & Co., Inc.543,325$28.8M0.02%+264,791+95.1%Added
Two Sigma Investments, LP524,038$27.8M0.02%+451,631+623.7%Added
Qube Research & Technologies Ltd485,799$25.7M0.04%+295,904+155.8%Added
Muzinich & Co., Inc.484,823$25.7M8.98%+44,811+10.2%Added
Adell Harriman & Carpenter Inc484,584$25.7M1.57%+6,149+1.3%Added
Invesco Ltd.432,475$22.9M0.00%+12,720+3.0%Added
BlackRock, Inc.424,235$22.5M0.00%+214,109+101.9%Added
Sumitomo Mitsui Trust Holdings, Inc.370,509$19.6M0.01%+14,962+4.2%Added
Millennium Management LLC359,838$19.1M0.01%+112,775+45.6%Added
LPL Financial LLC347,928$18.4M0.00%−447−0.1%Reduced
Franklin Resources Inc320,868$17.0M0.00%+19,160+6.4%Added
Goldman Sachs Group Inc313,388$16.6M0.00%−43,411−12.2%Reduced
Childress Capital Advisors, LLC293,733$15.6M2.81%00.0%Unchanged
Public Employees Retirement Association of Colorado281,396$14.9M0.06%+1,196+0.4%Added
Raymond James Financial Inc263,721$13.9M0.00%+10,921+4.3%Added
Sanders Morris Harris LLC237,255$12.6M1.99%+237,255New
Trinity Legacy Partners, LLC203,156$11.5M2.48%+11,657+6.1%Added
Marshall Wace, LLP205,441$10.9M0.01%+205,441New
Private Advisor Group, LLC170,310$9.02M0.04%−2,914−1.7%Reduced
Advisor Group Holdings, Inc.169,695$8.99M0.01%−1,033−0.6%Reduced
JPMorgan Chase & Co167,892$8.67M0.00%−53,282−24.1%Reduced
Benjamin Edwards Inc153,623$8.14M0.08%−3,229−2.1%Reduced
Royal Bank of Canada151,196$8.01M0.00%+1,713+1.1%Added
Cambridge Investment Research Advisors, Inc.144,946$7.68M0.02%−3,293−2.2%Reduced
Trexquant Investment LP142,490$7.55M0.05%+123,909+666.9%Added
U.S. Capital Wealth Advisors, LLC139,128$7.37M0.19%+338+0.2%Added
Bridgelight Financial Advisors, Inc.136,603$7.23M6.13%+1,504+1.1%Added
Joel Isaacson & Co., LLC129,007$6.83M0.23%+176+0.1%Added
TCTC Holdings, LLC128,991$6.83M0.19%+2,200+1.7%Added
Envestnet Asset Management Inc127,331$6.74M0.00%+79,691+167.3%Added
Ameriprise Financial Inc126,948$6.74M0.00%−26,641−17.3%Reduced
Hourglass Capital, LLC123,550$6.54M1.36%−1,310−1.0%Reduced
Balyasny Asset Management LLC120,007$6.36M0.01%+6,631+5.8%Added
Sound Income Strategies, LLC118,152$6.13M0.30%−217,879−64.8%Reduced
We Are One Seven, LLC114,996$6.09M0.12%+19,926+21.0%Added
Hamilton Point Investment Advisors, LLC113,635$6.02M0.93%−370−0.3%Reduced
Segment Wealth Management, LLC113,034$5.99M0.35%−7,209−6.0%Reduced
Advisors Asset Management, Inc.111,220$5.89M0.10%−768−0.7%Reduced
State Street Corp110,688$5.86M0.00%+110,688New
J.W. Cole Advisors, Inc.106,862$5.66M0.19%−1,654−1.5%Reduced
Wells Fargo & Company103,723$5.49M0.00%+3,449+3.4%Added
Integrated Wealth Concepts LLC103,138$5.46M0.04%+4,313+4.4%Added
Denali Advisors LLC101,485$5.37M0.60%−4,815−4.5%Reduced
Meridian Wealth Management, LLC101,197$5.36M0.19%+2,912+3.0%Added
Great West Life Assurance Co97,605$5.19M0.01%+73,861+311.1%Added
Bank of America Corp97,631$5.17M0.00%−3,732−3.7%Reduced
HighTower Advisors, LLC95,585$5.06M0.01%+1,177+1.2%Added
First Trust Advisors LP94,492$5.00M0.00%−61,444−39.4%Reduced
BNP Paribas Arbitrage, SA92,205$4.88M0.00%−5,730−5.9%Reduced
Confluence Investment Management LLC90,958$4.82M0.07%−6,125−6.3%Reduced
Quantbot Technologies LP88,742$4.70M0.19%+41,061+86.1%Added
CoreCap Advisors, LLC86,935$4.60M0.16%+11,436+15.1%Added
Albion Financial Group86,932$4.60M0.30%+120+0.1%Added
Naviter Wealth, LLC84,990$4.50M0.56%+11,022+14.9%Added
Creative Planning82,247$4.36M0.00%+4,780+6.2%Added
Texas Yale Capital Corp.79,553$4.21M0.12%−850−1.1%Reduced
Engineers Gate Manager LP73,242$3.88M0.05%+42,611+139.1%Added
Tudor Investment Corp Et Al72,930$3.86M0.02%−165,934−69.5%Reduced
Cetera Investment Advisers72,310$3.83M0.00%−2,320−3.1%Reduced
Point72 Asset Management, L.P.72,144$3.82M0.01%+72,144New
Morgan Dempsey Capital Management LLC71,559$3.79M1.73%−1,867−2.5%Reduced
Commonwealth Equity Services, LLC69,522$3.68M0.01%−1,301−1.8%Reduced
FJ Capital Management LLC67,667$3.58M0.40%+67,667New
Baker Avenue Asset Management, LP66,206$3.51M0.08%+3,150+5.0%Added
Pembroke Management, LTD64,937$3.44M0.50%+408+0.6%Added
Larson Financial Group LLC60,400$3.20M0.10%+2,120+3.6%Added
Mariner, LLC59,833$3.17M0.00%+24,223+68.0%Added
IHT Wealth Management, LLC58,056$3.07M0.07%+1,369+2.4%Added
Fund Advisors of America Inc57,875$3.07M3.11%+2,030+3.6%Added
Kestra Advisory Services, LLC57,595$3.05M0.01%−629−1.1%Reduced
Midwest Professional Planners, LTD.54,385$2.88M0.68%+2,459+4.7%Added
Susquehanna Fundamental Investments, LLC53,758$2.85M0.11%−22,681−29.7%Reduced
Rockefeller Capital Management L.P.52,534$2.78M0.00%−2,043−3.7%Reduced
Beacon Pointe Advisors, LLC51,575$2.73M0.01%−3,701−6.7%Reduced
M&T Bank Corp51,400$2.72M0.01%+220.0%Added
Taylor Frigon Capital Management LLC50,079$2.65M1.51%−3,072−5.8%Reduced
Prospera Financial Services Inc49,161$2.61M0.04%+932+1.9%Added
Vestor Capital, LLC48,400$2.56M0.19%+47,118+3,675.4%Added
Russell Investments Group, Ltd.47,843$2.53M0.00%+47,061+6,018.0%Added
Capital Investment Advisors, LLC46,109$2.44M0.04%−3,825−7.7%Reduced
Barclays PLC44,536$2.36M0.00%+44,528+556,600.0%Added
Bank of New York Mellon Corp44,347$2.35M0.00%+3,209+7.8%Added
First Financial Bankshares Inc43,541$2.31M0.05%+2,563+6.3%Added
Schonfeld Strategic Advisors LLC43,032$2.28M0.02%+43,032New
Focus Financial Network, Inc.42,819$2.27M0.08%+4,021+10.4%Added
King Luther Capital Management Corp42,410$2.25M0.01%00.0%Unchanged
Geneos Wealth Management Inc.41,575$2.20M0.05%+6,414+18.2%Added
GWM Advisors LLC41,143$2.18M0.01%+34,823+551.0%Added
Neuberger Berman Group LLC40,860$2.16M0.00%+40,860New
CWM, LLC39,814$2.11M0.01%−11,060−21.7%Reduced
Blair William & Co39,040$2.07M0.01%+244+0.6%Added
Foundations Investment Advisors, LLC38,524$2.04M0.03%+925+2.5%Added
Gsa Capital Partners LLP37,370$1.98M0.12%+20,611+123.0%Added
Entropy Technologies, LP37,089$1.96M0.09%+37,089New
Sharpepoint LLC36,203$1.92M1.14%+5,242+16.9%Added