Main Street Capital CORP (MAIN) Institutional Ownership

Ownership Summary

Main Street Capital CORP (NYSE:MAIN) has 413 institutional investors with active 13F positions as of December 2025.

• These investors held 20.7% of outstanding shares in December 2025, down from 22.9% in September 2025.
• They increased total shares held in Main Street Capital by 9.04% from last quarter, and the number of investors in MAIN increased 4.29% annually.
• During the quarter, 200 of these 413 funds increased positions in MAIN, 122 reduced exposure, and 91 held steady.
• The aggregate institutional position in Main Street Capital amounted to 18.57Mn shares as of December 2025, up by 1.54Mn shares quarter on quarter, and down 2.03Mn shares year over year.
• PRICE T ROWE ASSOCIATES INC /MD/ leads ownership in MAIN with 2.71Mn shares as of December 31, 2025, equal to 3.02% of outstanding shares.
• The most significant purchases of MAIN for the quarter ending December 2025 came from PRICE T ROWE ASSOCIATES INC /MD/ (2.71Mn), VAN ECK ASSOCIATES CORP (976.58K), UBS Group AG (726.94K), TWO SIGMA INVESTMENTS, LP (451.63K), Qube Research & Technologies Ltd (295.9K).
• The largest sales of MAIN for the quarter ending December 2025 came from Corient Private Wealth LLC (1.77Mn), Goldman Sachs Group Inc (400.21K), Sound Income Strategies, LLC (217.88K), TUDOR INVESTMENT CORP ET AL (165.93K), FIRST TRUST ADVISORS LP (61.44K).
• Main Street Capital's 10 largest shareholders as of December 2025 include PRICE T ROWE ASSOCIATES INC /MD/ (2.71Mn), VAN ECK ASSOCIATES CORP (2.11Mn), UBS Group AG (1.34Mn), Morgan Stanley (854.58K), Legal & General Group Plc (784.02K), D. E. Shaw & Co., Inc. (543.33K), TWO SIGMA INVESTMENTS, LP (524.04K), Qube Research & Technologies Ltd (485.8K), Muzinich & Co., Inc. (484.82K), ADELL HARRIMAN & CARPENTER INC (484.58K) per Business Quant data.