X0306 4 2014-06-23 0 0001459266 ZS Pharma, Inc. ZSPH 0001399763 Alta Partners VIII, L.P. ONE EMBARCADERO CENTER SUITE 3700 SAN FRANCISCO CA 94111 0 0 1 0 0001399894 Alta Partners Management VIII, LLC ONE EMBARCADERO CENTER SUITE 3700 SAN FRANCISCO CA 94111 0 0 1 0 0001198330 NOHRA GUY P ONE EMBARCADERO CENTER SUITE 3700 SAN FRANCISCO CA 94111 0 0 1 0 0001198325 JANNEY DANIEL ONE EMBARCADERO CENTER SUITE 3700 SAN FRANCISCO CA 94111 0 0 1 0 0001198321 CHAMPSI FARAH ONE EMBARCADERO CENTER SUITE 3700 SAN FRANCISCO CA 94111 0 0 1 0 Common Stock 2014-06-23 4 C 0 3030090 A 3030090 D Common Stock 2014-06-23 4 P 0 200000 18.00 A 3230090 D Series C Preferred Stock 2014-06-23 4 C 0 2849703 D Common Stock 2849703 0 D Series D Preferred Stock 2014-06-23 4 C 0 180387 D Common Stock 180387 0 D Consists of (a) 2,849,703 shares of common stock which were issued upon conversion of 2,849,703 shares of Series C Preferred stock and (b) 180,387 shares of common stock which were issued upon conversion of 180,387 shares of Series D Preferred stock. Converted upon consummation of the initial public offering on a one-to-one conversion basis. Consists of 200,000 shares of common stock purchased in the initial public offering. Consists of (a) 2,849,703 shares of common stock which were issued upon conversion of 2,849,703 shares of Series C Preferred stock, (b) 180,387 shares of common stock which were issued upon conversion of 180,387 shares of Series D Preferred stock, and (c) 200,000 shares of common stock purchased in the initial public offering. Alta Partners VIII, L.P. ("APVIII") is the holder of record of the securities. Alta Partners Management VIII, LLC ("APMVIII") is the general partner of APVIII. Guy Nohra, Daniel Janney and Farah Champsi are managing directors of APMVIII and exercise shared voting and investment power with respect to the shares owned by APVIII. Each of the reporting persons disclaims beneficial ownership of such securities, except to the extent of his, her or its proportionate pecuniary interest therein. /s/ Lawrence Randall 2014-06-25 /s/ Guy Nohra 2014-06-25 /s/ Daniel Janney 2014-06-25 /s/ Farah Champsi 2014-06-25