NEEDHAM, Mass.--(BUSINESS WIRE)--Celldex Therapeutics, Inc. (NASDAQ: CLDX) announced today that Anthony S. Marucci, President and Chief Executive Officer of Celldex Therapeutics, Inc., will present at the 21st Annual Oppenheimer & Co. Healthcare Conference at the Waldorf=Astoria Hotel in New York City on Wednesday, November 3, 2010 at 10:15 a.m. Eastern Time.