1 Exhibit 11 Omnicare, Inc. and Subsidiary Companies Computation of Earnings Per Common Share (in thousands, except per share data) Three Months Ended Six Months Ended June 30, June 30, ------------------ ------------------- 1997 1996 1997 1996 ---- ---- ---- ---- Primary Earnings Net income $15,138 $ 10,396 $28,581 $ 18,525 Other 10 (22) 14 (28) ------- -------- ------- -------- Net income as adjusted $15,148 $ 10,374 $28,595 $ 18,497 ======= ======== ======= ======== Shares Weighted average number of common shares outstanding 80,143 65,123 79,110 59,425 Additional shares assuming conversion of: Stock options and stock warrants 106 2,218 129 2,170 ------- -------- ------- -------- Average common shares outstanding and equivalent as adjusted 80,249 67,341 79,239 61,595 ======= ======== ======= ======== Primary earnings per common share $ 0.19* $ 0.15 $ 0.36* $ 0.30 ======= ======== ======= ======== Fully Diluted Earnings Net income $15,138 $ 10,396 $28,581 $ 18,525 Aftertax interest expense related to 5 3/4% convertible subordinated debentures -- 755 -- 1,553 Other 10 (22) 14 (28) ------- -------- ------- -------- Net income as adjusted $15,148 $ 11,129 $28,595 $ 20,050 ======= ======== ======= ======== Shares Weighted average number of common shares outstanding 80,143 65,123 79,110 59,425 Additional shares assuming conversion of: Stock options and stock warrants 297 2,218 225 2,239 Convertible subordinated debentures -- 10,484 -- 10,798 ------- -------- ------- -------- Average common shares outstanding and equivalents as adjusted 80,440 77,825 79,335 72,462 ======= ======== ======= ======== Fully diluted earnings per common share $ 0.19* $ 0.14 $ 0.36* $ 0.28 ======= ======== ======= ======== <FN> * This calculation is submitted in accordance with Regulation S-K Item 601(b)(11), although not required by footnote 2 to paragraph 14 of APB Opinion No. 15 if it results in dilution of less than 3% or is anti-dilutive.