X0303 4 2010-09-09 0 0000744218 Celldex Therapeutics, Inc. CLDX 0000903696 SCHALLER CHARLES R C/O CELLDEX THERAPEUTICS, INC. 119 FOURTH AVENUE NEEDHAM MA 02494 1 0 0 0 Common Stock 2010-09-09 4 P 0 5000 3.45 A 5000 D /s/ Charles R. Schaller 2010-09-13