X0306 4 2020-10-12 0001673772 RAPT Therapeutics, Inc. RAPT 0001646110 Wong Brian Russell C/O RAPT THERAPEUTICS, INC. 561 ECCLES AVENUE SOUTH SAN FRANCISCO CA 94080 true true false false President and CEO Common Stock 2020-10-12 4 S false 20000 40.052 D 337000 I By The Wong Family Trust Dated February 4, 2008 Common Stock 147000 D The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by Reporting Person. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $40.00 to $40.26, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range. The shares are held directly by The Wong Family Trust Dated February 4, 2008 for which the Reporting Person is a trustee. /s/ Karen C. Lam, Attorney-in-Fact for Brian Wong, M.D., Ph.D. 2020-10-13