EXHIBIT 11.1 CATALYTICA, INC. STATEMENT OF COMPUTATION OF PER SHARE EARNINGS (IN THOUSANDS, PER SHARE AMOUNTS) Primary: Three Months ENDED Nine MONTHS ENDED SEPTEMBER 30, September 30, ------------------------------- -------------------------------- 1997 1996 1997 1996 -------------- --------------- --------------- --------------- Weighted Average Shares Outstanding: Common shares 40,917 19,326 26,897 19,257 Warrants 1,233 -- -- -- Stock options 623 -- -- -- ------- ------- ------- ------- Total weighted average shares outstanding 42,773 19,326 26,897 19,257 Income (Loss) per share: Net income (loss) $ 743 $ (972) $(3,410) $(5,152) ======= ======= ======= ======= Net income (loss) per share $ 0.02 $ (0.05) $ (0.13) $ (0.27) ======= ======= ======= ======= The earnings per share for the three and nine months ended September 30, 1997 and 1996 calculated on a fully diluted basis is the same as primary earnings per share as shown above. II-1