X0202 3 2004-06-17 0 0001123979 SENOMYX INC SNMX 0001207789 SCHOEMAKER KATHLEEN K C/O DOMAIN ASSOCIATES, LLC ONE PALMER SQUARE PRINCETON NJ 08542 0 0 1 0 Common Stock 59764 I By Domain Partners IV, L.P. Common Stock 1431 I By DP IV Associates, L.P. Series A Preferred Stock Common Stock 700697 I By Domain Partners IV, L.P. Series B Preferred Stock Common Stock 57716 I By Domain Partners IV, L.P. Series E Preferred Stock Common Stock 351727 I By Domain Partners IV, L.P. Series A Preferred Stock Common Stock 16790 I By DP IV Associates, L.P. Series B Preferred Stock Common Stock 1382 I By DP IV Associates, L.P. All of the Preferred Stock will automatically convert into common stock immediately upon the closing of the Issuer's initial public offering, for no additional consideration. The Reporting Person is a managing member of One Palmer Square Associates IV, L.L.C., the sole general partner of Domain Partners IV, L.P. and DP IV Associates, L.P. Pursuant to Instruction (5)(b)(iv) of Form 3, the Reporting Person has elected to report as indirectly beneficially owned the entire number of securities beneficially owned by each such entity. The Reporting Person disclaims beneficial ownership of any securities, and any proceeds thereof, that exceed his or her pecuniary interest therein and/or that are not actually distributed to him or her. Kathleen K. Schoemaker 2004-06-17