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Main Street Capital CORP
$55.54 +2.13 (+3.99%) At close · Jul 16
Market Cap
$5.16B
Shares
92,989,838

Institutional ownership from SEC Form 13F filings. Investment managers with more than $100 million in U.S. equities must disclose their positions every quarter, within 45 days of quarter-end, so the holdings shown can lag the market by up to a quarter.

The Jun 30, 2026 filing window is still open — showing the latest known positions. Funds that have not filed yet carry their prior-quarter positions; a fund that filed without this stock counts as sold out.
Holders: 424
Total Value: $1,282,981,122
Total Shares: 24,242,617
Showing 1–100 of 432 holdings by value · page 1 of 5

Institutional Ownership Trend

26 quarters

Holder Concentration

Across 426 13F filers
Top Holder
11.2%
Jun 2023 → Mar 2026 · range 11.2% – 20.0%
of institutional value
Top 5
32.2%
Jun 2023 → Mar 2026 · range 29.0% – 41.7%
of institutional value
Top 10
43.1%
Jun 2023 → Mar 2026 · range 40.2% – 50.9%
of institutional value
HHI
317
Jun 2023 → Mar 2026 · range 297 – 551
Broadly held
Showing 100 of 432
All Common Calls Puts
Export CSV
Holder Value (USD) % of 13F Shares Open
Mega PRICE T ROWE ASSOCIATES INC /MD/ $143,458,206 11.18% 2,708,803
Mega VAN ECK ASSOCIATES CORP $111,688,508 8.71% 2,108,922
Mega UBS Group AG $70,903,482 5.53% 1,338,812
Mega MORGAN STANLEY $45,258,818 3.53% 854,585
Mega Legal & General Group Plc $41,521,752 3.24% 784,021
Mega D. E. Shaw & Co., Inc. $28,774,492 2.24% 543,325
Mega TWO SIGMA INVESTMENTS, LP $27,753,052 2.16% 524,038
Large Qube Research & Technologies Ltd $25,727,915 2.01% 485,799
Small Muzinich & Co., Inc. $25,676,226 2.00% 484,823
Mid ADELL HARRIMAN & CARPENTER INC $25,663,568 2.00% 484,584
Mega Invesco Ltd. $22,903,874 1.79% 432,475
Mega BlackRock, Inc. $22,467,482 1.75% 424,235
Mega Sumitomo Mitsui Trust Group, Inc. $19,622,156 1.53% 370,509
Mega MILLENNIUM MANAGEMENT LLC $19,057,020 1.49% 359,838
Mega SUSQUEHANNA INTERNATIONAL GROUP, LLP $18,832,576 1.47% 355,600
Mega LPL Financial LLC $18,426,266 1.44% 347,928
Mega FRANKLIN RESOURCES INC $16,993,169 1.32% 320,868
Mega GOLDMAN SACHS GROUP INC $16,597,028 1.29% 313,388
Small CHILDRESS CAPITAL ADVISORS, LLC $15,556,099 1.21% 293,733
Large PUBLIC EMPLOYEES RETIREMENT ASSOCIATION OF COLORADO Pension $14,902,732 1.16% 281,396
Mega RAYMOND JAMES FINANCIAL INC $13,966,662 1.09% 263,721
Mega CITIGROUP INC $13,240,000 1.03% 250,000
Mega SUSQUEHANNA INTERNATIONAL GROUP, LLP $12,715,696 0.99% 240,100
Large MARSHALL WACE, LLP $10,880,154 0.85% 205,441
Small Trinity Legacy Partners, LLC $10,759,141 0.84% 203,156
Small SANDERS MORRIS HARRIS LLC $10,353,120 0.81% 199,559
Mid Private Advisor Group, LLC $9,019,617 0.70% 170,310
Large OSAIC HOLDINGS, INC. $8,987,045 0.70% 169,695
Mega JPMORGAN CHASE & CO $8,891,559 0.69% 167,892
Mid BENJAMIN EDWARDS INC $8,135,873 0.63% 153,623
Mega ROYAL BANK OF CANADA Bank $8,007,339 0.62% 151,196
Large Cambridge Investment Research Advisors, Inc. $7,676,340 0.60% 144,946
Large Trexquant Investment LP $7,546,270 0.59% 142,490
Small TECTONIC ADVISORS LLC $7,545,685 0.59% 145,445
Mid U.S. Capital Wealth Advisors, LLC $7,368,218 0.57% 139,128
Mid Joel Isaacson & Co., LLC $6,832,210 0.53% 129,007
Mid TCTC Holdings, LLC $6,831,363 0.53% 128,991
Mega ENVESTNET ASSET MANAGEMENT INC $6,743,449 0.53% 127,331
Mega AMERIPRISE FINANCIAL INC $6,723,164 0.52% 126,948
Small HOURGLASS CAPITAL, LLC $6,543,208 0.51% 123,550
Large Balyasny Asset Management L.P. $6,355,570 0.50% 120,007
Mid Sound Income Strategies, LLC $6,257,329 0.49% 118,152
Mid MGO ONE SEVEN LLC $6,090,188 0.47% 114,996
Small Hamilton Point Investment Advisors, LLC $6,018,109 0.47% 113,635
Mid Segment Wealth Management, LLC $5,953,126 0.46% 114,748
Mid Advisors Asset Management, Inc. $5,890,211 0.46% 111,220
Mega STATE STREET CORP $5,862,036 0.46% 110,688
Mid J.W. COLE ADVISORS, INC. $5,659,411 0.44% 106,862
Mega WELLS FARGO & COMPANY/MN $5,493,169 0.43% 103,723
Mid Integrated Wealth Concepts LLC $5,462,188 0.43% 103,138
Small DENALI ADVISORS LLC $5,374,645 0.42% 101,485
Mid Meridian Wealth Management, LLC $5,359,393 0.42% 101,197
Mega BANK OF AMERICA CORP /DE/ Bank $5,170,537 0.40% 97,631
Large CANADA LIFE ASSURANCE Co Insurance $5,169,160 0.40% 97,605
Large HighTower Advisors, LLC $5,062,181 0.39% 95,585
Mega FIRST TRUST ADVISORS LP $5,004,296 0.39% 94,492
Mega BNP PARIBAS ARBITRAGE, SA $4,883,176 0.38% 92,205
Mid CONFLUENCE INVESTMENT MANAGEMENT LLC $4,850,053 0.38% 93,486
Mid Quantbot Technologies LP $4,699,776 0.37% 88,742
Small ALBION FINANCIAL GROUP /UT $4,603,918 0.36% 86,932
Small Naviter Wealth, LLC $4,501,070 0.35% 84,990
Large Creative Planning $4,355,801 0.34% 82,247
Mid Texas Yale Capital Corp. $4,213,126 0.33% 79,553
Mid Engineers Gate Manager LP $3,878,896 0.30% 73,242
Large TUDOR INVESTMENT CORP ET AL $3,862,372 0.30% 72,930
Large Cetera Investment Advisers $3,829,537 0.30% 72,310
Large Point72 Asset Management, L.P. $3,820,746 0.30% 72,144
Small MORGAN DEMPSEY CAPITAL MANAGEMENT LLC $3,789,764 0.30% 71,559
Large COMMONWEALTH EQUITY SERVICES, LLC $3,681,885 0.29% 69,522
Small FJ Capital Management LLC $3,583,644 0.28% 67,667
Mid Baker Avenue Asset Management, LP $3,506,269 0.27% 66,206
Small Pembroke Management, LTD $3,439,063 0.27% 64,937
Mid Larson Financial Group LLC $3,198,784 0.25% 60,400
Large Mariner, LLC $3,168,754 0.25% 59,833
Mid IHT Wealth Management, LLC $3,074,645 0.24% 58,056
Micro Fund Advisors of America Inc/FL $3,065,060 0.24% 57,875
Large Kestra Advisory Services, LLC $3,050,231 0.24% 57,595
Small Midwest Professional Planners, LTD. $2,880,229 0.22% 54,385
Mid SUSQUEHANNA FUNDAMENTAL INVESTMENTS, LLC $2,847,023 0.22% 53,758
Large Rockefeller Capital Management L.P. $2,782,199 0.22% 52,534
Mid Beacon Pointe Advisors, LLC $2,731,412 0.21% 51,575
Large M&T Bank Corp Bank $2,722,144 0.21% 51,400
Small Taylor Frigon Capital Management LLC $2,652,183 0.21% 50,079
Mega CITADEL ADVISORS LLC $2,573,856 0.20% 48,600
Small VESTOR CAPITAL, LLC $2,563,264 0.20% 48,400
Mid Prospera Financial Services Inc $2,552,340 0.20% 49,197
Large Russell Investments Group, Ltd. $2,533,764 0.20% 47,843
Mid Capital Investment Advisors, LLC $2,441,932 0.19% 46,109
Mid Focus Financial Network, Inc. $2,425,441 0.19% 46,751
Mega BARCLAYS PLC $2,358,626 0.18% 44,536
Mega Bank of New York Mellon Corp Bank $2,348,615 0.18% 44,347
Mid First Financial Bankshares Inc $2,305,931 0.18% 43,541
Large Schonfeld Strategic Advisors LLC $2,278,974 0.18% 43,032
Large KING LUTHER CAPITAL MANAGEMENT CORP $2,246,033 0.18% 42,410
Mid Geneos Wealth Management Inc. $2,201,812 0.17% 41,575
Mega NEUBERGER BERMAN GROUP LLC $2,163,945 0.17% 40,860
Large CWM, LLC $2,108,549 0.16% 39,814
Large NewEdge Advisors, LLC $2,068,035 0.16% 39,049
Large BLAIR WILLIAM & CO/IL $2,067,558 0.16% 39,040
Mid Foundations Investment Advisors, LLC Endowment $2,040,230 0.16% 38,524
Key facts CIK 1396440 CUSIP 56035L104 13F (30d) 42 filings 42 filers Visit website Investor relations

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