1 EXHIBIT 11 CABOT CORPORATION Earnings per Common Share for the Three Month Period Ended June 30, 1994 Statement Regarding Computation of Per Share Earnings (In thousands, except per share amounts) Primary Fully Diluted ------- ------------- Shares of common stock outstanding at April 1, 1994, less treasury stock 18,788 18,788 Plus net weighted shares of treasury stock issued 6 7 Plus common stock equivalents: Effect of convertible preferred stock conversion - 1,554 Effect of equity incentive awards 299 299 --------- --------- Weighted average shares outstanding 19,093 20,648 ========= ========= Income applicable to common shares $ 21,108 $ 21,108 Dividends on preferred stock - 895 Preferred stock conversion compensation shortfall - (623) --------- --------- Earnings applicable to common shares $ 21,108 $ 21,380 ========= ========= Earnings per common share $ 1.11 $ 1.04 ========= ========= 2 EXHIBIT 11 CABOT CORPORATION Earnings per Common Share for the Nine Month Period Ended June 30, 1994 Statement Regarding Computation of Per Share Earnings (In thousands, except per share amounts) Primary Fully Diluted ------- ------------- Shares of common stock outstanding at October 1, 1993, less treasury stock 18,726 18,726 Plus net weighted shares of treasury stock issued 52 52 Plus common stock equivalents: Effect of convertible preferred stock conversion - 1,554 Effect of equity incentive awards 318 318 --------- --------- Weighted average shares outstanding 19,096 20,650 ========= ========= Income applicable to common shares $ 57,618 $ 57,618 Dividends on preferred stock - 2,691 Preferred stock conversion compensation shortfall - (1,873) --------- --------- Earnings applicable to common shares $ 57,618 $ 58,436 ========= ========= Earnings per common share $ 3.02 $ 2.83 ========= =========