INTERNATIONAL MUREX TECHNOLOGIES CORPORATION COMPUTATION OF EARNINGS PER SHARE YEAR ENDED DECEMBER 31, ------------------------------- 1994 1995 1996 ---- ---- ---- PRIMARY (3) Weighted average shares outstanding during the period 16,661 16,381 16,215 Shares issued upon assumed exercise of stock options and warrants, less amounts assumed repurchased under treasury stock method(1) 78 296 ------- ------- ------ Total common shares and common shares equivalents 16,739 16,381 16,511 Net income (loss) $14,224 ($6,610) $1,849 ======= ======= ====== Primary per share amount $0.85 ($0.40) $0.11 ======= ======= ====== FULLY DILUTED (2), (3) Total common shares and common share equivalents 16,739 16,381 16,511 Additional shares issued upon assumed exercise of stock options and warrants, less amounts assumed repurchased under treasury stock method(1) 445 ------- ------- ------ Total 16,739 16,381 16,956 ======= ======= ====== Net income (loss) $14,224 ($6,610) $1,849 ======= ======= ====== Fully diluted per share amount $0.85 ($0.40) $0.11 ======= ======= ====== (1) Shares issued from assumed exercise of options and warrants include the number of incremental shares which result from applying the "treasury stock method" for options and warrants, APB Opinion No. 15, paragraph 36. The options and warrants are antidilutive in 1995 and are not included in the calculation. (2) This calculation is submitted in accordance with 17 CFR 229.601(b)(11) although not required by APB Opinion No. 15 because it results in dilution of less than 3%. (3) Weighted average share and dollar amounts, except per share amounts, are stated in thousands.