Exhibit 11.1 NEOPROBE CORPORATION AND SUBSIDIARIES COMPUTATION OF NET LOSS PER SHARE
Three Months Ended Six Months Ended March 31, March 31, 1996 1997 1996 1997 ---- ---- ---- ---- Net Loss ($4,398,618) ($7,235,205) ($7,948,817) ($11,961,133) Weighted average number of shares outstanding: Weighted average common shares outstanding beginning of period 17,426,614 22,652,473 17,334,800 22,586,527 Weighted average common shares issued during period 2,314,091 97,240 1,245,859 114,566 ----------------------------- ------------------------------ Weighted average number of shares outstanding used in computing primary net loss per share 19,740,705 22,749,713 18,580,659 22,701,093 ============================= ============================== Weighted average number of shares used in computing fully diluted net loss per share 19,740,705 22,749,713 18,580,659 22,701,093 ============================= ============================== Earnings (Net Loss) Per Share: Primary ($0.22) ($0.32) ($0.43) ($0.53) ============================= ============================== Fully diluted ($0.22) ($0.32) ($0.43) ($0.53) ============================= ==============================