X0306 4 2015-02-23 0 0001340652 ChemoCentryx, Inc. CCXI 0001226064 KANAYA SUSAN M C/O CHEMOCENTRYX, INC. 850 MAUDE AVENUE MOUNTAIN VIEW CA 94043 0 1 0 0 SVP, Finance, CFO and Sec. Stock Option (right to buy) 8.19 2015-02-23 4 A 0 205000 0.00 A 2025-02-23 Common Stock 205000 205000 D The option was granted on February 23, 2015. 25% of the total number of shares of common stock subject to the option will vest on January 1, 2016, and 1/48th of the total number of shares of common stock subject to the option will vest monthly thereafter, subject to the Reporting Person's continued employment or service relationship with the Issuer on each such vesting date. /s/ Susan M. Kanaya, as Attorney-in-Fact 2015-02-25