NEEDHAM, Mass.--(BUSINESS WIRE)--Celldex Therapeutics, Inc. (NASDAQ: CLDX) today announced that Anthony S. Marucci, President and Chief Executive Officer of Celldex Therapeutics, Inc., will present at the 31st Annual Cowen and Company Health Care Conference at The Boston Marriott Copley Place in Boston, MA on Tuesday, March 8, 2011 at 9:30 a.m. Eastern Time.