EXHIBIT 11 ENZO BIOCHEM, INC. COMPUTATION OF PER-SHARE EARNINGS Years ended July 31, 1995, 1994 and 1993
1995 1994* 1993* ---- ----- ----- Primary Average shares outstanding 20,957,300 20,446,900 18,483,400 Net effect of dilutive stock options and warrants -- based on the treasury stock method using average market price 963,500 1,061,700 -- ---------- ---------- ----------- Total 21,920,800 21,508,600 18,483,400 ---------- ---------- ----------- ---------- ---------- ----------- Income (loss) before extraordinary items $5,618,100 $5,101,200 $(6,376,100) Extraordinary gain (loss) -- 150,000 (465,600) ---------- ---------- ----------- Net income (loss) $5,618,100 $5,251,200 $(6,841,700) ---------- ---------- ----------- ---------- ---------- ----------- Per common and common equivalent share Income (loss) before extraordinary items $.26 $.23 $(.34) Extraordinary gain (loss) -- .01 (.03) ---- ---- ----- Net income (loss) $.26 $.24 $(.37) ---- ---- ----- ---- ---- -----
* Shares and per share amounts have been adjusted for the 5% stock dividend declared in fiscal 1995. E-15