EXHIBIT 11 FTP SOFTWARE, INC. WEIGHTED SHARES USED IN COMPUTATION OF EARNINGS PER SHARE THREE MONTHS NINE MONTHS ENDED ENDED ---------------- ----------- FOR THE PERIOD ENDED SEPTEMBER 30, 1996: Common stock outstanding, beginning of period 26,967,104 26,506,729 Weighted average common stock issued during the period ended September 30, 1996 5,045,542 2,138,445 ------------ ----------- Weighted average shares of common stock outstanding 32,012,646 28,645,174 ============ =========== FOR THE PERIOD ENDED SEPTEMBER 30, 1995: Common stock outstanding, beginning of period 24,952,915 23,344,122 Weighted average common stock issued during the period ended September 30, 1995 611,024 1,401,838 Weighted average common stock equivalents 3,668,011 4,815,773 Weighted average treasury shares acquired using the treasury stock method (1,179,300) (1,265,120) ------------ ----------- Weighted average shares of common stock outstanding 28,052,650 28,296,613 ============ =========== For the three- and nine-months periods ended September 30, 1996 and 1995 there was no material difference between the computation of fully diluted and primary weighted average shares of common stock outstanding.