INTERNATIONAL MUREX TECHNOLOGIES CORPORATION COMPUTATION OF EARNINGS PER SHARE Three Months Ended March 31, 1996 1995 PRIMARY Weighted average shares outstanding during the period 16,160 16,569 Shares issuable upon assumed exercise of stock options and warrants, less amounts assumed repurchased under treasury stock method(1) Total common shares and common share equivalents 16,160 16,569 Net income (loss) ($1,109) ($2,174) Primary per share amount ($ 0.07) ($ 0.13) FULLY DILUTED(2) Total common shares and common share equivalents 16,160 16,569 Additional shares issuable upon assumed exercise of stock options and warrants, less amounts assumed repurchased under treasury stock method(1) Total $16,160 $16,569 Net income (loss) ($1,109) ($2,174) Fully diluted per share amount ($ 0.07) ($ 0.13) (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 1996 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%.