EXHIBIT 11 MINNESOTA MINING AND MANUFACTURING COMPANY AND SUBSIDIARIES EARNINGS PER SHARE OF COMMON STOCK (Unaudited) Three months ended Nine months ended September 30 September 30 1996 1995 1996 1995 ------- ------- ------- ------- (Millions) Income from continuing operations $398 $339 $1,141 $1,040 Discontinued operations -- 5 -- 33 Net income $398 $344 $1,141 $1,073 - ------------------------------------------------------------------------------- Primary earnings per share: Continuing operations $.95 $.81 $2.73 $2.48 Discontinued operations -- .01 -- .08 Net Income $.95 $.82 $2.73 $2.56 Weighted average number of common shares outstanding 418,329,485 419,922,978 418,513,444 419,947,878 - ------------------------------------------------------------------------------- Fully diluted earnings per share: (1) Continuing operations $.93 $.80 $2.68 $2.45 Discontinued operations -- .01 -- .08 Net Income $.93 $.81 $2.68 $2.53 Weighted average number of common shares outstanding 418,329,485 419,922,978 418,513,444 419,947,878 Common equivalent shares 7,714,743 3,908,123 7,714,743 3,960,898 ----------- ----------- ----------- ----------- Average number of common and common equivalent shares outstanding 426,044,228 423,831,101 426,228,187 423,908,776 - ------------------------------------------------------------------------------- Primary earnings per share is computed by dividing net income by the weighted average number of common shares outstanding for each period. The calculation excludes the effect of common equivalent shares resulting from stock options using the treasury stock method as the effect would not be material. Fully diluted earnings per share is computed based on the weighted average number of common shares and common equivalent shares outstanding for each period. (1) This calculation is submitted in accordance with Regulation S-K Item 601(b)(11) although not required by APB Opinion No. 15 because it results in dilution of less than 3%.