Leadership Team

Christopher A. Viehbacher

President and Chief Executive Officer

Christopher A. Viehbacher joined Biogen as President and Chief Executive Officer and a member of the Board of Directors in November 2022. 

Viehbacher has extensive international experience in both large pharmaceutical companies and entrepreneurial biotech companies and has a passion for advancing science for the benefit of patients and public health. 

After 20 years with GlaxoSmithKline, he served as global CEO of Sanofi for six years. Under Viehbacher’s leadership, Sanofi strengthened and diversified its R&D pipeline and delivered significant value to shareholders. 

More recently, Viehbacher and Ernesto Bertarelli co-founded Gurnet Point Capital, a Cambridge-based healthcare investment fund, which has led to the creation and continuing development of many innovative companies. He has also chaired or been a member of the board of a number of entrepreneurial companies in biotechnology. Viehbacher has always been a strong advocate for innovation and public health. He has received a number of awards including the Légion d’Honneur from France.

He graduated from Queen's University in Kingston, Ontario, Canada. He is a certified public accountant, and he speaks French, German and English.

Meet our leadership team


Chief Legal Officer and Secretary

Susan H. Alexander


Chief Human Resources Officer

Ginger Gregory, Ph.D.


Head of Global Product Strategy & Commercialization

Rachid Izzar


Head of Corporate Development

Adam Keeney


Chief Financial Officer

Michael McDonnell


Head of Pharmaceutical Operations and Technology

Nicole Murphy


Head of Development and Interim Head of Research and Global Safety and Regulatory Sciences

Priya Singhal, M.D., M.P.H.

See more