EXHIBIT 11.1 CARDIMA, INC. COMPUTATION OF NET LOSS PER SHARE (in thousands, except per share data) (unaudited) Three months ended Six months ended June 30, June 30, ------------------ ------------------ 1997 1996 1997 1996 -------- ------- ------- ------- Historical: Weighted average common shares outstanding 2,277 72 1,175 71 Shares related to Staff Accounting Bulletins Nos. 55, 64 and 83: Stock options - 632 316 632 Preferred Stock - 2,357 1,179 2,357 ------- ------- ------- ------- Total shares used in calculating net loss per share 2,277 3,061 2,670 3,060 ======= ======= ======= ======= Net Loss $(2,761) $(1,627) $(5,087) $(3,147) ======= ======= ======= ======= Net loss per share $ (1.21) $ (0.53) $ (1.91) $ (1.03) ======= ======= ======= ======= Pro forma: Shares used in calculating net loss per share (per above) 2,277 3,061 2,670 3,060 Preferred Stock if converted 2,444 3,370 2,908 3,253 ------- ------- ------- ------- Total shares used in calculating pro forma net loss per share 4,721 6,431 5,578 6,313 ======= ======= ======= ======= Net Loss $(2,761) $(1,627) $(5,087) $(3,147) ======= ======= ======= ======= Pro forma net loss per share $ (0.58) $ (0.25) $ (0.91) $ (0.50) ======= ======= ======= =======