EXHIBIT 11 W. R. GRACE & CO. AND SUBSIDIARIES WEIGHTED AVERAGE NUMBER OF SHARES AND EARNINGS USED IN PER SHARE COMPUTATIONS (Unaudited) The weighted average number of shares of Common Stock outstanding were as follows (in thousands): 3 Mos. Ended ------------------ 3/31/95 3/31/94 ------- -------- Weighted average number of shares of Common Stock outstanding . . . . . . . . . . . . . . . . 94,137 93,750 Additional dilutive effect of outstanding options (as determined by the application of the treasury stock method). . . . . . . . . . . . . . 2,018 981 ------ ------ Weighted average number of shares of Common Stock outstanding assuming full dilution. . . . . 96,155 94,731 ------ ------ ------ ------ Income used in the computation of earnings per share were as follows (in millions, except per share): 3 Mos. Ended ------------------ 3/31/95 3/31/94 ------- -------- Net income . . . . . . . . . . . . . . . . . . . . . . $47.5 $38.2 Dividends paid on preferred stocks . . . . . . . . . . (.1) (.1) ----- ----- Income used in per share computation of earnings and in per share computation of earnings assuming full dilution. . . . . . . . $47.4 $38.1 ----- ----- ----- ----- Earnings per share . . . . . . . . . . . . . . . . . . $ .50 $ .41 Earnings per share assuming full dilution. . . . . . . $ .49 $ .40