Pena Fernando Austin plan to sell securities of BLACKSTONE MORTGAGE TRUST, INC. under Form 144

Pena Fernando Austin filed Form 144 to notify SEC of plan to sell 1666 units of BLACKSTONE MORTGAGE TRUST, INC. securities around 2026-03-31, with aggregate market value of $31,458.81. The total outstanding units is 168738642.0. The amount planned to be sold represents 0.00% of total outstanding units; Recent transactions in past 3 months include: On 12/31/2025, sold 3131 units for $60233.85;