X0206 3 2014-06-17 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 Series C Preferred Stock Common Stock 2849703 I See Footnote Series D Preferred Stock Common Stock 180387 I See Footnote Immediately prior to the consummation of this offering, all outstanding shares of our convertible preferred stock will be converted into shares of our common stock. The securities are held of record by Alta Partners VIII, L.P. ("APVIII"). 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 onwed 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/ Laurence Randall 2014-06-17 /s/ Guy C. Nohra 2014-06-17 /s/ Daniel S. Janney 2014-06-17 /s/ Farah Champsi 2014-06-17