URBASZEK MARCIN plan to sell securities of BLACKSTONE MORTGAGE TRUST, INC. under Form 144

URBASZEK MARCIN filed Form 144 to notify SEC of plan to sell 1352 units of BLACKSTONE MORTGAGE TRUST, INC. securities around 2026-06-17, with aggregate market value of $24,809.20. The total outstanding units is 168683520.0. The amount planned to be sold represents 0.00% of total outstanding units; Recent transactions in past 3 months include: On 12/17/2025, sold 400 units for $8116.04; On 03/17/2026, sold 452 units for $8646.76;