Press Release

HAMPTON, N.J., May 27, 2015 (GLOBE NEWSWIRE) -- Celldex Therapeutics, Inc. (Nasdaq:CLDX) announced today that Anthony Marucci, Co-founder, President and Chief Executive Officer, will present a corporate overview at the Jefferies 2015 Global Healthcare Conference on June 3, 2015 at 3:30 p.m. EDT in New York City.

The live webcast of the presentation will be available on the "Events & Presentations" page of the "Investors & Media" section of the Celldex website. A replay of the presentation will be available for 30 days following the event.

About Celldex Therapeutics, Inc.

Celldex is developing targeted therapeutics to address devastating diseases for which available treatments are inadequate. Our pipeline is built from a proprietary portfolio of antibodies and immunomodulators used alone and in strategic combinations to create novel, disease-specific therapies that induce, enhance or suppress the body's immune response. Visit www.celldex.com.

CONTACT: Company Contact:

         Sarah Cavanaugh,

         Vice President of Investor Relations & Corp Communications

         Celldex Therapeutics, Inc.

         (781) 433-3161

         scavanaugh@celldex.com

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