1 EXHIBIT 11 UNAUDITED UNAUDITED THREE MONTHS ENDED NINE MONTHS ENDED SEPTEMBER 30, SEPTEMBER 30, ------------- ------------- (IN THOUSANDS, EXCEPT PER SHARE DATA) 1996 1995 1996 1995 ---- ---- ---- ---- PRIMARY Weighted average number of common and common equivalent shares outstanding: Common stock 34,108 30,026 33,936 29,742 Common stock equivalent shares resulting from stock options (treasury stock method) 2,484 2,360 2,542 2,292 ------- ------- ------- ------- Total 36,592 32,386 36,478 32,034 ======= ======= ======= ======= Net income $ 551 $ 4,558 $ 5,604 $ 4,935 ======= ======= ======= ======= Net income per common and common equivalent share $ 0.02 $ 0.14 $ 0.15 $ 0.15 ======= ======= ======= ======= FULLY DILUTED Weighted average number of common and common equivalent shares outstanding: Common stock 34,108 30,026 33,936 29,743 Common stock equivalent shares resulting from stock options (treasury stock method) 2,484 2,360 2,542 2,292 ------- ------- ------- ------- Total 36,604 32,426 36,506 32,034 ======= ======= ======= ======= Net income $ 551 $ 4,558 $ 5,604 $ 4,935 ======= ======= ======= ======= Net income per common and common equivalent share $ 0.02 $ 0.14 $ 0.15 $ 0.15 ======= ======= ======= =======