Exhibit 11 INTERNATIONAL MUREX TECHNOLOGIES CORPORATION COMPUTATIONS OF EARNINGS PER SHARE (1) Three Months Ended Nine Months Ended September 30, September 30, ----------------- ----------------- 1996 1995 1996 1995 ---- ---- ---- ---- PRIMARY Weighted average shares outstanding during the period 16,168 16,306 16,164 16,424 Shares issuable upon assumed exercise of stock options and warrants, less amounts assumed repurchased under treasury stock method(2) 279 7 93 3 ------ ------ ------ ------ Total common shares and common shares equivalents 16,447 16,313 16,257 16,427 ====== ====== ====== ====== Net income (loss) $1,292 ($2,107) $9 ($5,290) ====== ====== ====== ====== Primary per share amount $0.08 ($0.13) $0.00 ($0.32) ====== ====== ====== ====== FULLY DILUTED(3) Total common shares and common share equivalents 16,447 16,313 16,257 16,427 Additional shares issuable upon assumed exercise of stock options and warrants, less amounts assumed repurchased under treasury stock method(2) 395 132 ------ ------ ------ ------ Total 16,842 16,313 16,389 16,427 ====== ====== ====== ====== Net income (loss) $1,292 ($2,107) $9 ($5,290) ====== ====== ====== ====== Fully diluted per share amount $0.08 ($0.13) $0.00 ($0.32) ====== ====== ====== ====== (1) Weighted average share and dollar amounts, except per share amounts, are stated in thousands (2) 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. (3) 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%.