1 TEKELEC STATEMENT OF COMPUTATION OF EARNINGS PER SHARE THREE MONTHS ENDED NINE MONTHS ENDED PRIMARY SEPTEMBER 30, SEPTEMBER 30, -------------------- ----------------- (thousands, except per share data) 1995 1994 1995 1994 ---- ---- ---- ---- Net income . . . . . . . . . . . . . . . . . . $ 2,560 $ 1,357 $ 6,078 $ 2,360 Assumed interest reduction, net of taxes(1) . -- 13 -- 41 ------- ------- ------- ------- Adjusted net income . . . . . . . . . . . . . $ 2,560 $ 1,370 $ 6,078 $ 2,401 ======= ======= ======= ======= Basis for computation of primary earnings per common and common equivalent share: Weighted average number of shares outstanding during period . . . . . . . . . . 11,457 8,684 10,180 8,620 Weighted average (incremental) common share equivalent after considering the effects of options exercised and canceled during the period and after assumed repurchase of treasury shares--treasury stock method(1) . . . . . . . . . . . . . . . 1,596 578 1,619 414 ------- ------- ------- ------- 13,053 9,262 11,799 9,034 ======= ======= ======= ======= Earnings per share . . . . . . . . . . . . . . $ 0.20 $ 0.15 $ 0.52 $ 0.27 ======= ======= ======= ======= - ---------------- (1) Treasury stock method, as modified by APB15, paragraph 38 THREE MONTHS ENDED NINE MONTHS ENDED FULLY DILUTED SEPTEMBER 30, SEPTEMBER 30, -------------------- ----------------- (thousands, except per share data) 1995 1994 1995 1994 ---- ---- ---- ---- Net income . . . . . . . . . . . . . . . . . . $ 2,560 $ 1,357 $ 6,078 $ 2,360 ======= ======= ======= ======= Basis for computation of fully diluted earnings per common and common equivalent share: Weighted average number of shares outstanding during period . . . . . . . . . . 11,457 8,684 10,180 8,620 Weighted average (incremental) common share equivalent after considering the effects of options exercised and canceled during the period and after assumed repurchase of treasury shares -- treasury stock method . . . . . . . . . . . . . . . . . 1,597 1,056 1,675 964 ------- ------- ------- ------- 13,054 9,740 11,855 9,584 ======= ======= ======= ======= Earnings per share . . . . . . . . . . . . . . $ 0.20 $ 0.14 $ 0.51 $ 0.25 ======= ======= ======= ======= TEKELEC EXHIBIT 11.1