OMNICARE, INC. AND SUBSIDIARY COMPANIES Computation of Earnings Per Common Share (EPS) (in thousands, except per share data) Three Months Ended Nine Months Ended September 30, September 30, ------------------------ ----------------------- 1999 1998 1999 1998 ----------- --------- ---------- ---------- BASIC EARNINGS: Net income $ 13,944 $ 25,740 $ 46,629 $54,252 ======== ======== ======== ======= Shares Weighted average number of common shares outstanding 91,276 89,493 90,900 88,815 ======== ======== ======== ======= Basic earnings per common share $ 0.15 $ 0.29 $ 0.51 $ 0.61 ======== ======== ======== ======= DILUTED EARNINGS (a): Net income $ 13,944 $ 25,740 $ 46,629 $54,252 ======== ======== ======== ======= Shares Weighted average number of common shares outstanding 91,276 89,493 90,900 88,815 Additional shares assuming conversion of stock options and stock warrants -- 561 275 832 -------- -------- -------- ------- Weighted average common shares outstanding as adjusted 91,276 90,054 91,175 89,647 ======== ======== ======== ======= Diluted earnings per common share $ 0.15 $ 0.29 $ 0.51 $ 0.61 ======== ======== ======== ======= (a) The $345,000,000 of 5.0% Convertible Subordinated Notes due 2007 which are convertible into 8,712,121 shares at $39.60 per share were outstanding during the three and nine months ended September 30, 1999 and 1998, but were not included in the computation of diluted EPS because the impact was anti-dilutive.