1 EXHIBIT 11 FRESENIUS USA, INC. AND SUBSIDIARIES COMPUTATION OF NET INCOME PER COMMON SHARES (In thousands, except per share amounts) Twelve Months Ended ------------------- December 31, 1995 Modified Treasury Stock Method - ------------------------------ Number of common stock outstanding at 12/31/95 21,465 Total number of shares obtainable at 12/31/95 using the Treasury Stock Method 5,626 20% of shares outstanding at 12/31/95 4,293 Total proceeds from assumed exercise of options and warrants $44,911 Assumed number of common stock in excess of number of common stock repurchased Primary 2,169 Fully diluted 3,366 Net income $16,387 Weighted average number of shares of common stock and common stock equivalents used to compute net income per common and common equivalent share: Primary 26,647 Fully diluted 27,844 Net income per common and common equivalent share: Primary $ 0.61 ------- Fully diluted $ 0.59 ------- 2 EXHIBIT 11 FRESENIUS USA, INC. AND SUBSIDIARIES COMPUTATION OF NET INCOME PER COMMON SHARES (In thousands, except per share amounts) Twelve Months Ended ------------------- December 31, 1994 Modified Treasury Stock Method - ------------------------------ Number of common stock outstanding at 12/31/94 21,205 Total number of shares obtainable at 12/31/94 using the Treasury Stock Method 5,448 20% of shares outstanding at 12/31/94 4,241 Total proceeds from assumed exercise of options and warrants $41,898 Consideration assumed paid for repurchase of 20% of outstanding stock at $8.375 per share (4,241 * $8.375) $35,518 Assumed amount remaining to reduce debt $ 6,380 Effect on net income at an interest rate of 6.36% ($6,380 * 6.36%), net of tax $ 364 Net income $ 7,154 ------- Assumed net income giving effect to payback of debt $ 7,518 ------- Weighted average number of shares of primary and fully dilutive common stock and common stock equivalents 23,926 Net income per common share $ 0.31 ------- 3 EXHIBIT 11 FRESENIUS USA, INC. AND SUBSIDIARIES COMPUTATION OF NET INCOME PER COMMON SHARES (In thousands, except per share amounts) Twelve Months Ended ------------------- December 31, 1993 Treasury Stock Method - --------------------- Net income $ 3,693 Weighted average number of shares of primary and fully dilutive common stock and common stock equivalents 20,660 Net income per common share $ 0.18 -------