Genmab A/S announced that Birgitte Stephensen, Executive Vice President and Chief Legal Officer, will retire from Genmab after a successful tenure that spanned 23 years with the company. Greg Mueller joins Genmab A/S as Executive Vice President, General Counsel and Chief Legal Officer effective July 1, 2025. He will report directly to Genmab?s President and CEO Dr. Jan van de Winkel and be based in Copenhagen, Denmark.

Greg will join Jan and the rest of the Executive Committee, including Chief Medical Officer Dr. Tahi Ahmadi, Chief Commercial Officer Brad Bailey, Chief People Officer Chris Cozic, Chief Development Officer Dr. Judith Klimovsky, Chief Financial Officer Anthony Pagano, Chief Strategy Officer Dr. Martine van Vugt, and Chief TechOps Officer Rayne Waller. Greg joins Genmab from AstraZeneca (AZ), where he spent more than 20 years working in North America, Europe and Asia. For the last 12 years, he was part of the Legal Senior Management Team, holding roles as the Deputy General Counsel, International and then as the Deputy General Counsel, Corporate.

Prior to his tenure at AZ, he worked as a corporate transactions lawyer at a large national Canadian law firm. Greg holds a Bachelor of Commerce specialist degree from the University of Toronto and a Law Degree (LLB) from Queen?s University.