Mr. Marucci was appointed President and Chief Executive Officer of Celldex in September 2008 and as a director of Celldex in December 2008. Since May 2003, Mr. Marucci has held a number of roles with Celldex, including as a founder, Vice President, Chief Financial Officer, Treasurer and Secretary. In addition, he was Treasurer of Medarex, Inc. (now a part of Bristol-Myers Squibb Co.) from December 1998 to March 2004. Mr. Marucci held a series of senior financial positions at Medarex from December 1998 to May 2003. Since May 2021, Mr. Marucci serves as a member of the board of directors of Genenta Science S.p.A., a publicly held biopharmaceutical company. Mr. Marucci is a member of the Board of Trustees of BioNJ Inc. and also served as its Treasurer through 2010. Mr. Marucci is also a member of the Board of the College of Business and Public Management at Kean University. Mr. Marucci received his M.B.A. from Columbia University and his M.H.L. from Brown University.

Ms. Cavanaugh joined Celldex in August 2012 as Vice President of Investor Relations and Corporate Communications. Prior to joining Celldex, she served from 2007 to 2012 as a Vice President at MacDougall Biomedical Communications, a strategic communications and investor relations firm for the life sciences industry, where she developed and implemented programs for more than 20 biopharmaceutical companies and served as the in-house oncology expert. Ms. Cavanaugh has served in a number of leadership positions in the health care and life sciences industry, including Director of Corporate Communications for Point Therapeutics, an oncology-focused biotech company, and Director of Corporate Communications for Fallon Community Health Plan, a leading Massachusetts managed care organization. She began her health care career at the American Cancer Society, holding various positions providing leadership in physician education, corporate communications, government relations and marketing. She completed her tenure there as Division Communications and Marketing Director for the Mid-South Division, where she was responsible for managing the efforts of marketing and communications staff across six states. Throughout her career, Ms. Cavanaugh has played a leadership role in organizational development and employee relations/communication. Ms. Cavanaugh received her B.A. from the University of New Hampshire.

Elizabeth Crowley is Senior Vice President, Chief Product Development Officer of Celldex. Ms. Crowley joined Celldex in 2009 as Vice President, Clinical Development. Prior to that, she held several senior level roles at CuraGen Corporation, most recently serving as the Vice President of Development Operations, responsible for strategic and operational development activities of the oncology and oncology supportive care portfolio, regulatory affairs, clinical operations and data management. Ms. Crowley started her career at Bayer Corporation in 1992, holding various positions providing leadership of clinical research and project management prior to completing her tenure there as the Director of Global Study Audit Management, assuring the highest standards for program execution. Ms. Crowley received her BS in Chemistry with a concentration in Business from Boston College.

Dr. Heath-Chiozzi joined Celldex in October 2017 as Senior Vice President, Regulatory Affairs. Prior to joining Celldex, she was Vice President, Global Submissions and Regulatory Policy at Bristol-Myers Squibb Company, where she provided executive global regulatory strategy leading to nine product approvals. Previously, she served as Vice President, Global Regulatory Strategy, contributing to several business units including oncology, immunology, virology and genetically defined diseases. While at Bristol-Myers Squibb, she supported the global launches of several successful therapies in the areas of oncology, inflammation and infectious disease, including Yervoy®, Erbitux®, Orencia®, Sprycel®, Daklinza®, Sunvepra, Baraclude®, Atripla® and Reyataz®. From 1995 to 2003, Dr. Heath-Chiozzi served in roles of increasing responsibility at Abbott Laboratories, including Medical Director, Pharmacogenetics; Senior Director, Global Marketed Product Development and Outcomes Research; and Global Project Head, Abbott/Millennium Obesity/Diabetes Alliance. Before joining Abbott, she was appointed to the University of Hawaii John A. Burns School of Medicine, where she served as Assistant Professor, and was concurrently Director of the HIV Research Clinical at the Queen’s Medical Center as well as Director of the Women’s Immunology Clinical at the Kapiolani Medical Center for Women and Children, in Honolulu. Dr. Heath-Chiozzi received her B.S. and M.D. from the University of Utah. She received further medical training in internal medicine at Duke University and completed fellowships in infectious disease at Brigham & Women’s Hospital and Dana-Farber Cancer Institute in Boston.

Mr. Jimenez is Senior Vice President and General Counsel of Celldex. Mr. Jimenez joined Celldex in 2016 as Vice President, Law and Compliance, serving as the Company’s chief counsel and compliance officer as well as providing executive leadership of information technology. Prior to joining Celldex, Mr. Jimenez spent 23 years at Johnson & Johnson (J&J) in various roles, including head of the pharmaceutical regulatory legal group for J&J where he coordinated legal strategy, deployment, and provided advice and counsel regarding regulatory, compliance, and fraud and abuse matters. Mr. Jimenez also worked in the Food & Drug Practice at the Washington DC-based law firm of Akin Gump Strauss Hauer & Feld LLP. He is Vice-Chair of the Board of Directors for the Food and Drug Law Institute and has authored numerous publications focused on regulatory law and compliance. Mr. Jimenez received his JD from the Rutgers School of Law – Newark and completed his undergraduate work at Brandeis University with a B.A. in Biology and Certificate in the Legal Studies Program.

Dr. Keler is a Founder of Celldex and serves as the Company’s Executive Vice President and Chief Scientific Officer. Prior to this appointment in 2014, he was Senior Vice President of Research and Discovery at Celldex. Celldex, founded in 2004 as a subsidiary of Medarex (Medarex is now a wholly-owned subsidiary of Bristol Myers Squibb), was initially spun out as an independent private company in October 2005 with the asset acquisition of CDX-110 from Alteris Therapeutics, Inc. and the acquisition of Lorantis Limited (Cambridge, UK). Previously, Dr. Keler was Senior Director of Preclinical Development and Principal Scientist at Medarex from September 1993 to March 2004. While at Medarex, he was responsible for the preclinical development of a number of Medarex clinical product candidates. In addition, Dr. Keler was responsible for the development of Celldex's core technology and related products. Dr. Keler received his Ph.D. in Microbiology from the University of Pennsylvania.

Mr. Martin joined Celldex in April 2009 as Director of Financial Reporting, Planning and Analysis and most recently served as Vice President, Finance. Prior to joining Celldex, Mr. Martin served as the Director of Finance and Corporate Compliance for Alseres Pharmaceuticals, where he was responsible for managing the financial and SEC reporting and the annual budget and planning process. Mr. Martin began his career at Ernst & Young, holding various positions prior to completing his tenure as Audit Manager, where he provided audit, review, due diligence and consulting services to public and private companies in the biotechnology, medical device, health care, high technology, manufacturing and consumer product industries. Mr. Martin received an M.B.A. from Boston University, a B.S. from Skidmore College and is a Certified Public Accountant.

Dr. Pepin joined Celldex in July 2011 as Senior Vice President and Chief Business Officer. He previously served as Vice President at Shire Pharmaceuticals. From 2000 – 2009, as Senior Vice President, Business Development at Medarex, Inc., he was instrumental in establishing more than forty collaborations with global biopharmaceutical companies. Earlier in his career, he served as Executive Director of External Science and Technology at Bristol-Myers Squibb. Dr. Pepin received his B.A. from Tufts University and his Ph.D. in Genetics from Georgetown University.

Dr. Wright is Senior Vice President and Chief Commercial Officer of Celldex. He joined Celldex in 2012 as Vice President of Commercial Operations. Prior to Celldex, Dr. Wright was Managing Director at Navigant Consulting, where he led a Life Sciences practice focused on commercial strategy for oncology, immunology and rare disease therapies. Previously, Dr. Wright was at Bristol-Myers Squibb, where he held senior leadership roles including Senior Vice President of the U.S. Immunology Business and Vice President and Global Commercial Lead for the Immunology Franchise. At Bristol-Myers Squibb, he was responsible for CTLA4-Ig immunotherapies including the blockbuster drug ORENCIA® and the orphan drug NULOJIX®. In these roles he was charged with setting overall business strategy, commercializing the Company’s broad immunology franchise and managing the U.S. marketing and sales organizations. Dr. Wright began his career at Novartis Pharmaceuticals (Sandoz), where he led research aimed at discovering novel inhibitors of cell migration and metastasis, inhibition of tumor-induced angiogenesis and induction of immune tolerance. At Novartis, he later held several roles in new product commercialization, marketing and salesforce leadership in its Transplant and Immunology Business Unit and was responsible for NEORAL®, SIMULECT®, CERTICAN® and MYFORTIC®. Dr. Wright received his B.S. in Biological Sciences from Rutgers University and his M.S. and Ph.D. in Microbiology and Molecular Genetics from The University of Medicine and Dentistry of New Jersey (Rutgers University). He received an M.B.A. in Marketing and Finance from Columbia University.

Dr. Young joined Celldex in July 2019 as Senior Vice President and Chief Medical Officer. Prior to joining Celldex, she was the Chief Medical Officer of GTx, Inc., a public biopharmaceutical company focused on developing therapeutics that target nuclear hormone receptors. Previously, she spent 13 years at Novartis Oncology in senior leadership roles in global clinical development and medical affairs. As the Head of Oncology Clinical Development, she directed the clinical programs leading to successful regulatory approvals for EXJADE®, GLIVEC®, FEMARA®, AFINITOR®, RYDAPT®, JAKAVI® and FARIDAK® among others. Prior to Novartis, Diane held senior leadership positions in clinical development at the R.W. Johnson Pharmaceutical Research Institute of Johnson & Johnson, Hoffman-La Roche and Sandoz. Dr. Young received her A.B. in Biochemical Sciences at Harvard University and her M.D. from Harvard Medical School. Her postdoctoral training included an Internal Medicine Residency at Johns Hopkins Hospital and Vanderbilt Hospital, followed by an Oncology Fellowship at the Dana-Farber Cancer Institute. She is board certified in Internal Medicine and Medical Oncology.