X0303 4 2009-10-01 1 0001030653 CURAGEN CORP CRGN 0001421914 Cassidy Sean A 322 EAST MAIN STREET BRANFORD CT 06405 0 1 0 0 Former VP & CFO Common Stock 2009-10-01 4 D 0 50000 D 0 D Stock Option Right to Buy .69 2009-10-01 4 D 0 50000 D 2010-10-01 Common Stock 50000 0 D Stock Option Right to Buy .68 2009-10-01 4 D 0 159600 D 2010-10-01 Common Stock 159600 0 D Disposed of pursuant to merger agreement between issuer and Celldex Therapeutics, Inc. in exchange for 13,695 shares of Celldex Therapeutics, Inc. common stock having a market value of $19.82 per share on the effective date of the merger, October 1, 2009. This option vested 25% on January 24, 2009 and 6.25% quarterly thereafter until the effective date of the merger at which time the option was accelerated and assumed by Celldex Therapeutics, Inc. and replaced with an option to purchase 13,695 shares of Celldex Therapeutics, Inc. common stock for $2.52 per share. This option, which accelerated on October 1, 2009, was assumed by Celldex Therapeutics, Inc. in the merger and replaced with an option to purchase 43,714 shares of Celldex Therapeutics, Inc. common stock for $2.48 per share. Sean A. Cassidy 2009-10-05