1 Exhibit 11 PENWEST, LTD. AND SUBSIDIARIES COMPUTATION OF EARNINGS PER SHARE Quarter Ended Six Months Ended February 28 February 28 1995 1994 1995 1994 ---- ---- ---- ---- PRIMARY: - - -------- Net income $2,153,000 $863,000 $3,910,000 $2,624,000 ========== ======== ========== ========== Weighted average number of shares outstanding 6,682,942 6,829,325 6,738,142 6,833,492 Net effect of dilutive stock options 343,033 270,675 346,396 270,422 ------- ------- ------- ------- Adjusted shares outstanding 7,025,975 7,100,000 7,084,538 7,103,914 ========= ========= ========= ========= Earnings per share $0.31 $0.12 $0.55 $0.37 ===== ===== ===== ===== FULLY DILUTED: - - -------------- Net income $2,153,000 $863,000 $3,910,000 $2,624,000 ========== ======== ========== ========== Weighted average number of shares outstanding 6,682,942 6,829,325 6,738,142 6,833,491 Net effect of dilutive stock options 327,712 284,002 363,682 291,079 ------- ------- ------- ------- Adjusted shares outstanding 7,010,654 7,113,327 7,101,824 7,124,570 ========= ========= ========= ========= Earnings per share $0.31 $0.12 $0.55 $0.37 ===== ===== ===== ===== 69