X0306 4 2019-08-13 0 0001645666 Kezar Life Sciences, Inc. KZR 0001744263 Fowler John Franklin C/O KEZAR LIFE SCIENCES, INC. 4000 SHORELINE COURT, SUITE 300 SOUTH SAN FRANCISCO CA 94080 1 1 0 0 CEO Common Stock 2019-08-13 4 P 0 2000 4.655 A 295954 I By Trust The price reported on Column 4 is a weighted average price. These shares were purchased in multiple transactions ranging from $4.65 to $4.66 on August 13, 2019. The reporting person will provide upon request to the SEC, the issuer or security holder of issuer, full information regarding the number of shares purchased at each separate price. /s/ Marc Belsky, Attorney-in-fact 2019-08-14