1 Exhibit 11 Omnicare, Inc. and Subsidiary Companies Computation of Earnings Per Common Share (in thousands, except per share data) Three Months Ended Nine Months Ended September 30, September 30, --------------------------- -------------------------- 1997 1996 1997 1996 -------- -------- -------- -------- Primary Earnings Net Income $ 10,837 $ 11,813 $ 39,418 $ 30,338 Other (4) 3 10 (25) -------- -------- -------- -------- Net income as adjusted $ 10,833 $ 11,816 $ 39,428 $ 30,313 ======== ======== ======== ======== Shares Weighted average number of common shares outstanding 80,785 65,851 79,675 61,582 Additional shares assuming conversion of stock options and stock warrants 234 2,105 164 2,148 -------- -------- -------- -------- Average common shares outstanding and equivalent as adjusted 81,019 67,956 79,839 63,730 ======== ======== ======== ======== Primary earnings per common share $ 0.13 * $ 0.17 $ 0.49 * $ 0.48 ======== ======== ======== ======== Fully Diluted Earnings Net income $ 10,837 $ 11,813 $ 39,418 $ 30,338 Aftertax interest expense related to 5 3/4% convertible subordinated debentures -- 713 -- 2,266 Other (4) 3 10 (25) -------- -------- -------- -------- Net income as adjusted $ 10,833 $ 12,529 $ 39,428 $ 32,579 ======== ======== ======== ======== Shares Weighted average number of common shares outstanding 80,785 65,851 79,675 61,582 Additional shares assuming conversion of: Stock options and stock warrants 339 2,105 263 2,148 Convertible subordinated debentures -- 10,347 -- 10,693 -------- -------- -------- -------- Average common shares outstanding and equivalent as adjusted 81,124 78,303 79,938 74,423 ======== ======== ======== ======== Fully diluted earnings per common share $ 0.13 * $ 0.16 $ 0.49 * $ 0.44 ======== ======== ======== ======== <FN> * The calculations for the three and nine month periods ended September 30, 1997 are 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 since they result in dilution of less than 3%.