X0508 4 2023-08-04 0 0001666291 Claros Mortgage Trust, Inc. CMTG 0001424106 Mack Richard C/O MACK REAL ESTATE CREDIT STRATEGIES 60 COLUMBUS CIRCLE, 20TH FLOOR NEW YORK NY 10023 1 1 0 0 CEO AND CHAIRMAN 0 COMMON STOCK 2023-08-04 4 M 0 254821 0.00 A 2322244 D COMMON STOCK 2023-08-04 4 D 0 140917 10.81 D 2181327 D RESTRICTED STOCK UNITS 2023-08-04 4 M 0 254821 D COMMON STOCK 0 0 D Represents first vesting tranche of restricted stock units ("RSUs") granted on June 14, 2022, which vest with respect to 1/3rd of the RSUs subject thereto on each of the 1st through 3rd anniversaries of July 1, 2022, subject to continued employment or service as provided in the award agreement. The RSUs have no expiration date. Reflects change in beneficial ownership from indirect to direct holdings pursuant to a distribution of 140,771 common stock shares by Mack CMTG Holdings Member, LLC to Reporting Person. Represents cash settlement of RSUs in order to satisfy tax obligations. /s/ Jeffrey D. Siegel, Attorney-in-Fact for Richard Mack 2023-08-08