Checkmate Pharmaceuticals, Inc. announced the addition of Jon Wigginton, M.D. to its Board of Directors (Board). Dr. Wigginton has over 25 years of experience in clinical oncology and currently serves as Senior Advisor and Chairman of the SAB at Cullinan Oncology, Inc. Dr. Wigginton previously served as Chief Medical Officer at Cullinan Oncology, Inc., and an advisor for MPM Capital. Prior, he was Chief Medical Officer at MacroGenics, where he led the company's evolution of a fully-integrated clinical-stage cancer immunotherapy organization.