X0306 4 2015-05-21 0 0001340652 ChemoCentryx, Inc. CCXI 0001324991 Tyree James L C/O CHEMOCENTRYX, INC. 850 MAUDE AVENUE MOUNTAIN VIEW CA 94043 1 0 0 0 Common Stock 2015-05-22 4 M 0 27027 0.00 A 27027 D Common Stock 2015-05-22 4 S 0 12703 7.4465 D 14324 D Restricted Stock Units 2015-05-21 4 A 0 11795 0.00 A Common Stock 11795 11795 D Restricted Stock Units 2015-05-22 4 M 0 27027 0.00 D Common Stock 27027 0 D Shares were acquired upon vesting of restricted stock units awarded on May 22, 2014. The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person to cover estimated taxes due upon vesting of restricted stock units. Reflects the weighted average sale price of the shares sold. The shares were sold in multiple trades at prices ranging from $7.30 to $7.6052 per share, inclusive. The Reporting Person will provide to the SEC staff, the issuer or a security holder of the issuer, upon request, full information regarding the number of shares sold at each separate price. Each restricted stock unit represents a contingent right to receive one share of CCXI common stock. 100% of the restricted stock units will vest on May 21, 2016, subject to the Reporting Person's continued service to the Company on such date. Vested shares will be delivered to the Reporting Person within thirty (30) days following the vesting date. 100% of the restricted stock units vested on May 22, 2015. Vested shares will be delivered to the Reporting Person within thirty (30) days following the vesting date. /s/ Susan M. Kanaya, as Attorney-in-Fact 2015-05-26