EXHIBIT 11 AMGEN INC. COMPUTATION OF PER SHARE EARNINGS PRIMARY COMPUTATION Years ended December 31, 1996, 1995 and 1994 (In millions, except per share data) 1996 1995 1994 ------ ------ ------ Net income .............................. $679.8 $537.7 $319.7 ====== ====== ====== Applicable common and common stock equivalent shares: Weighted average shares of common stock outstanding during the period 264.9 265.0 266.3 Incremental number of shares outstanding during the period resulting from the assumed exercises of stock options and 15.8 15.7 13.3 warrants ........................... ------ ------ ------ Weighted average shares of common stock and common stock equivalents outstanding during the period ......... 280.7 280.7 279.6 ====== ====== ====== Earnings per common share primary ....... $ 2.42 $ 1.92 $ 1.14 ====== ====== ====== 1 EXHIBIT 11 AMGEN INC. COMPUTATION OF PER SHARE EARNINGS FULLY DILUTED COMPUTATION Years ended December 31, 1996, 1995 and 1994 (In millions, except per share data) 1996 1995 1994 ------ ------ ------ Net income .............................. $679.8 $537.7 $319.7 ====== ====== ====== Applicable common and common stock equivalent shares: Weighted average shares of common stock outstanding during the period 264.9 265.0 266.3 Incremental number of shares outstanding during the period resulting from the assumed exercises of stock options and 16.0 20.3 15.9 warrants ........................... ------ ------ ------ Weighted average shares of common stock and common stock equivalents outstanding during the period ......... 280.9 285.3 282.2 ====== ====== ====== Earnings per common share fully diluted . $ 2.42 $ 1.88 $ 1.13 ====== ====== ======