Blackstone Mortgage Trust BXMT Institutional Ownership

Updated Oct 11, 2026

Blackstone Mortgage Trust, Inc. (NYSE:BXMT) was reported as a holding by 347 institutional investors in 13F filings for the quarter ended June 30, 2026.

• Collectively, these holders controlled 63.81% of Blackstone Mortgage Trust's outstanding shares in Q2 2026, up from 62.94% in Q1 2026.
• Total shares held in Blackstone Mortgage Trust rose 1.31% from Q1 2026, while the number of holders rose 9.46% from Q2 2025.
• Of these 347 holders, 178 added to their positions, 99 reduced their stakes and 70 left their positions unchanged.
• Combined, institutional investors held 107.81Mn shares of BXMT as of Q2 2026, up 1.39Mn from the prior quarter and up 2.14Mn from a year earlier.
• BlackRock, Inc. was the top holder of Blackstone Mortgage Trust as of June 30, 2026, with 24.98Mn shares, or 14.78% of shares outstanding.
• Holders that added the most shares of Blackstone Mortgage Trust in Q2 2026 were UBS Group AG (+2.27Mn shares), Morgan Stanley (+587.62K shares), BlackRock, Inc. (+532.44K shares), Qube Research & Technologies Ltd (+348.45K shares) and State Street Corp (+269.97K shares).
• Holders that trimmed the most shares of Blackstone Mortgage Trust in Q2 2026 while keeping a position were BAMCO Inc (-1.38Mn shares), Goldman Sachs Group Inc (-453.33K shares), GFS Advisors, LLC (-403.18K shares), Bank of America Corp (-320.31K shares) and Citadel Advisors LLC (-139.12K shares).
• Blackstone Mortgage Trust's 10 largest institutional shareholders as of Q2 2026 were BlackRock, Inc. (24.98Mn shares), Blackstone Inc. (9.28Mn shares), Vanguard Portfolio Management LLC (8.9Mn shares), Vanguard Capital Management LLC (7.16Mn shares), State Street Corp (6.42Mn shares), UBS Group AG (4.56Mn shares), Geode Capital Management, LLC (4.11Mn shares), Morgan Stanley (2.83Mn shares), Charles Schwab Investment Management Inc (2.34Mn shares) and Northern Trust Corp (1.93Mn shares), per Business Quant data.