EXHIBIT 11 DURA PHARMACEUTICALS, INC. STATEMENTS RE COMPUTATIONS OF NET INCOME PER SHARE IN THOUSANDS, EXCEPT PER SHARE DATA THREE MONTHS ENDED SIX MONTHS ENDED JUNE 30, JUNE 30, ------------------ -------------------- 1996 1997 1996 1997 ------------------ -------------------- (UNAUDITED) (UNAUDITED) Net Income ................................... $ 4,609 $ 9,282 $ 8,665 $ 18,069 ------- -------- -------- -------- ------- -------- -------- -------- Weighted Average Number of Common and Common Equivalent Shares: Common stock ............................... 33,819 43,672 32,598 43,511 Stock options .............................. 1,933 1,118 1,955 1,147 Warrants ................................... 2,927 2,537 2,724 2,627 ------- -------- -------- -------- Total ..................................... 38,679 47,327 37,277 47,285 ------- -------- -------- -------- ------- -------- -------- -------- Net Income per Share ......................... $ 0.12 $ 0.20 $ 0.23 $ 0.38 ------- -------- -------- -------- ------- -------- -------- -------- FULLY DILUTED NET INCOME PER SHARE: Net Income ................................... $ 4,609 $ 9,282 $ 8,665 $ 18,069 ------- -------- -------- -------- ------- -------- -------- -------- Weighted Average Number of Common and Common Equivalent Shares Assuming Issuance of All Dilutive Contingent Shares: Common stock ............................... 33,819 43,672 32,598 43,511 Stock options .............................. 1,934 1,174 2,064 1,172 Warrants ................................... 2,928 2,640 3,007 2,683 ------- -------- -------- -------- Total ..................................... 38,681 47,486 37,669 47,366 ------- -------- -------- -------- ------- -------- -------- -------- Net Income per Share ......................... $ 0.12 $ 0.20 $ 0.23 $ 0.38 ------- -------- -------- -------- ------- -------- -------- --------