The Board of Directors of Seagen Inc. announced that President, CEO and Chairman Clay Siegall, Ph.D. is on a leave of absence. The company is aware of an alleged incident of domestic violence that occurred recently at Dr. Siegall's home. Dr. Siegall has denied these allegations and has informed the company that he is engaged in a divorce.

The Board of Directors has formed a committee of independent directors and is conducting a thorough investigation with the assistance of an independent law firm. Roger Dansey, M.D., Seagen's Chief Medical Officer since 2018, has been appointed Interim CEO. Dr. Dansey joined Seagen as Chief Medical Officer in 2018, bringing extensive experience in cancer drug development.

His deep oncology background and proven leadership has helped Seagen evolve into a global, multi-product oncology company with a robust and diverse pipeline. Prior to joining Seagen, Dr. Dansey was Therapeutic Area Head for Late-Stage Oncology at Merck & Co. Inc., where he was responsible for registration efforts for Keytruda® (pembrolizumab) across multiple tumor types.

Earlier in his career, Dr. Dansey held leadership positions at Gilead Sciences and Amgen. He holds an M.D. from the University of Witwatersrand in Johannesburg, South Africa. He serves as a member of the board of directors for INOVIO Pharmaceuticals Inc.