1 EXHIBIT 11 GenCorp Inc. COMPUTATION OF EARNINGS PER COMMON SHARE Unaudited Three Months Ended ------------------------------- February 28, February 29, 1997 1996 --------------- ------------- Earnings (Dollars in Millions) - -------- Net Income (Loss) for Primary Earnings Per Share $ 11.1 $(11.7) Tax Affected Interest Expense Applicable to 8% Convertible Subordinated Debentures 1.4 1.4 ------- ------ Net Income (Loss) for Fully Diluted Earnings Per Share $ 12.5 $(10.3) ======= ====== Shares (In Thousands) - ------ Weighted Average Number of Common Shares Outstanding for Primary Earnings Per Share (see Note B) 34,230 33,670 Additional Shares Issuable Under Stock Options for Fully Diluted Earnings Per Share 5 -- Assuming Conversion of 8% Convertible Subordinated Debentures 7,158 7,158 ------- -------- Weighted Average Number of Common Shares Outstanding for Fully Diluted Earnings Per Share 41,393 40,828 ======= ======= Earnings Per Share - ------------------ Primary: $ .32 $ (.35) ======= ======= Fully Diluted: $ .30 $ (.35) ======= =======