Black Stone Minerals BSM Institutional Ownership

Ownership Summary

Black Stone Minerals, L.P. (NYSE:BSM) showed up in the 13F filings of 188 institutional investors as of March 2026.

• These investors collectively held 20.4% of Black Stone Minerals's outstanding shares in March 2026, up from 19.2% in December 2025.
• Their total shares held in BSM increased 12.77% quarter over quarter, and separately, investors owning Black Stone Minerals increased 9.3% from a year ago.
• Of these 188 funds, 70 grew their exposure to Black Stone Minerals, 43 cut back, and 75 maintained positions.
• Altogether, these fund groups held 43.38Mn shares in BSM by March 2026, up by 4.91Mn shares quarter on quarter, and up 8.03Mn shares year over year.
• As of March 31, 2026, the biggest holder of Black Stone Minerals is Morgan Stanley at 8.27Mn shares, representing 3.89% of shares outstanding.
• Top purchasers of BSM stock for the quarter ending March 2026 included FMR LLC (2.66Mn), Ameriprise Financial Inc (1.18Mn), Morgan Stanley (1.16Mn), Long Corridor Asset Management Ltd (772.0K), EVERGREEN CAPITAL MANAGEMENT LLC (197.96K).
• Leading sellers of Black Stone Minerals shares for the quarter ending March 2026 were UBS Group AG (420.48K), Corient Private Wealth LLC (347.76K), GraniteShares Advisors LLC (220.29K), Citigroup Inc (207.91K), Regions Financial Corp (189.15K).
• According to Business Quant data, leading holders of BSM for March 2026 are Morgan Stanley (8.27Mn), William Marsh Rice University (5.66Mn), FMR LLC (4.54Mn), Bank Of America Corp /De/ (2.11Mn), PENN DAVIS MCFARLAND INC (1.96Mn), INVESTMENT MANAGEMENT ASSOCIATES INC /ADV (1.9Mn), NATIXIS (1.58Mn), Ameriprise Financial Inc (1.18Mn), BROWN ADVISORY INC (878.0K), Long Corridor Asset Management Ltd (772.0K).