X0306 4 2022-08-17 0 0001666291 Claros Mortgage Trust, Inc. CMTG 0001194638 WALTER W EDWARD C/O MACK REAL ESTATE CREDIT STRATEGIES 60 COLUMBUS CIRCLE, 20TH FLOOR NEW YORK NY 10023 1 0 0 0 COMMON STOCK 2022-08-17 4 P 0 20215 18.5411 A 32715 D COMMON STOCK 2022-08-17 4 P 0 6760 18.55 A 6760 I By LLC The price reported in Column 4 is a weighted average price. The shares were purchased in multiple transactions at prices ranging from $18.52 to $18.55, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the range set forth in this footnote. Represents shares of common stock held by WillJen LLC ("WillJen"). Mr. Walter is the managing member of WillJen and thus is deemed to beneficially own the shares held by WillJen. Mr. Walter disclaims beneficial ownership of these shares, except to the extent of any pecuniary interest therein. /s/ Jeffrey D. Siegel, Attorney-in-Fact for W. Edward Walter 2022-08-18