1 EXHIBIT 12 HEMISPHERx BIOPHARMA, INC. STATEMENTS REGARDING COMPUTATION OF NET LOSS PER SHARE For the six months ended June 30, 1995 and 1996 Six Months Ended June 30, (unaudited) ------------------------------------- 1995 1996 ---- ---- NET LOSS PER SHARE (PROFORMA) Net Loss: $ (1,372,275) $ (1,746,137) ========= ========= Shares: Weighted average number of common shares outstanding during the period 7,236,754 15,581,661 Incremental shares representing: Options and warrants issued within one year period prior to an initial public offering 3,858,538 - Conversion of Preferred Stock to Common Stock 1,952,214 - --------- -------------- Weighted average number of shares used in calculating net loss per share 13,047,506 15,581,661 ========== ========== Net loss per share $ (0.11) $ (0.11) =========== =========== 15