1 EXHIBIT 11 NOVAVAX, INC. AND SUBSIDIARIE COMPUTATION OF NET LOSS PER COMMON SHARE (Unaudited) Three months ended Nine months ended September 30, September 30, ------------- ------------- 1997 1996 1997 1996 ---- ---- ---- ---- Net loss $ (1,138,916) $ (1,020,616) $ (3,482,481) $ (3,616,633) ============= ============= ============= ============= Weighted average of common shares outstanding 11,900,529 10,055,661 11,558,594 9,998,028 ============= ============= ============= ============= Net loss per common share outstanding $(0.10) $(0.10) $(0.30) $(0.36) ============= ============= ============= ============= Common stock equivalents were not included in the above as they are antidilutive. 13