Karen Massey

Karen Massey joined argenx as Chief Operating Officer in March 2023. Ms. Massey has over 20 years of experience in the biopharma industry, including in commercial leadership, product development, corporate strategy and innovation roles.

Prior to joining argenx, Ms. Massey was with Genentech (Roche Group) for over nine years, where she most recently served as senior vice president of product development and global clinical operations. She previously held various commercial leadership roles across marketing and business operations, including as the vice president of the multiple sclerosis and neuromyelitis optica business.

Ms. Massey started her biopharmaceutical career in marketing at Pfizer and returned there, after two years as a management consultant at Bain & Company, to take on leadership positions in corporate strategy, sales and as a commercial lead in Latin America. Ms. Massey holds a Bachelor of Economics from the University of Sydney and an MBA from the NYU Stern School of Business.