X0306 4 2022-01-03 0 0001673772 RAPT Therapeutics, Inc. RAPT 0001635616 Brockstedt Dirk G. C/O RAPT THERAPEUTICS, INC. 561 ECCLES AVENUE SOUTH SAN FRANCISCO CA 94080 0 1 0 0 Chief Scientific Officer Common Stock 2022-01-03 4 F 0 820 36.73 D 18992 D Represents the number of shares withheld by and surrendered to the Issuer on January 3, 2022, to satisfy tax withholding obligations that arose in connection with the vesting of Restricted Stock Units granted to the Reporting Person on January 30, 2020 for 8,000 shares. /s/ Rodney Young, Attorney-in-Fact for Dirk G Brockstedt 2022-03-21