ANSAN PHARMACEUTICALS, INC. (A DEVELOPMENT STAGE COMPANY) STATEMENT OF COMPUTATION OF NET LOSS PER SHARE EXHIBIT 11.1 THREE MONTHS ENDED MARCH 31, --------------------------------- 1997 1996 Net Loss $ (639,358) $ (407,935) ----------- ----------- ----------- ----------- Weighted average shares of Common Stock outstanding 2,849,887 2,768,164 Shares related to staff accounting bulletin topic 4D: Stock Options Conversion of payable to parent Escrow Shares (365,983) (363,760) ----------- ----------- Shares used in calculating net loss per share 2,483,904 2,404,404 ----------- ----------- ----------- ----------- Net loss per share $ (0.26) $ (0.17) ----------- ----------- ----------- ----------- 13