HAMPTON, N.J., Dec. 14, 2016 (GLOBE NEWSWIRE) -- Celldex Therapeutics, Inc. (NASDAQ:CLDX) today announced the appointment of Gerald McMahon, Ph.D., to the Company's Board of Directors. Dr. McMahon was previously the President and Chief Executive Officer of Kolltan Pharmaceuticals. In addition, the Company announced that Richard van den Broek has resigned from the Board due to increasing responsibilities in other endeavors. "Dr. McMahon brings an exceptional background in science and drug development, particularly in the oncology space, to the Celldex Board," said Larry Ellberger, Chairman of the Board of Directors at Celldex Therapeutics. "We believe he will be a valuable addition as we advance a robust pipeline, which now also includes drug candidates targeting receptor tyrosine kinases, an area of expertise for Jerry. I would also like to recognize Rich for his contributions to Celldex. We wish him all the best in his future endeavors." Prior to joining Kolltan, Dr. McMahon served as Senior Vice President, R&D Oncology at MedImmune, where he oversaw the strategy and investment for the oncologic biologics pipeline. Prior to joining MedImmune, Dr. McMahon was a Venture Partner at Bay City Capital. Previously, he held roles including that of Chairman and CEO of Poniard Pharmaceuticals, CEO and President of NeoRx and President at SUGEN, where he played a critical role in the successful discovery, development, and regulatory approvals of Sutent ® and Palladia ®. Dr. McMahon also was a Director at Sandoz, serving in various research and development roles. Dr. McMahon received his B.S. in Biology and Ph.D. in Biochemistry from Rensselaer Polytechnic Institute. He has held academic appointments at the Tufts University School of Medicine, Department of Hematology & Oncology at the New England Medical Center, and the Massachusetts Institute of Technology.