About Biogen

Biogen is a leading global biotechnology company that pioneers science and drives innovations for complex and devastating diseases. Biogen is advancing a pipeline of potential therapies across neurology, neuropsychiatry, specialized immunology and rare disease and remains acutely focused on its purpose of serving humanity through science while advancing a healthier, more sustainable and equitable world. Founded in 1978, Biogen has pioneered multiple breakthrough innovations including a broad portfolio of medicines to treat multiple sclerosis, the first approved treatment for spinal muscular atrophy, and two co-developed treatments to address a defining pathology of Alzheimer’s disease.

Where science meets humanity

Science that transforms patient lives. Science that seeks to solve societal problems. Science that acts with purpose. Science that is inspired by the diversity and passion of our people. Discover where science meets humanity at Biogen.

Science & Innovation

R&D Expertise
Our deep scientific expertise and our courage to take risks make us leaders in the research and development of medicines.

Our medicines aim to improve the well-being of people around the world.

Our technology and engineering capabilities help bring our high-quality medicines to market.

Access and Health Equity

We are committed to advancing health equity for the disease areas we treat.


of clinical trials initiated in 2022 included a plan to recruit underrepresented patients


countries in which our therapies are available


countries served by our Expanded Access Program


Advancing a healthier, more sustainable and equitable world

Caring Deeply, Working Fearlessly, Changing Lives ™

Our culture unites the people of Biogen within a spirit of ethics, inclusivity, agility and unwavering patient focus.

Meet our leaders


President and Chief Executive Officer

Christopher A. Viehbacher


Chief Legal Officer

Susan H. Alexander


Chief Human Resources Officer

Ginger Gregory, Ph.D.


Head of Global Product Strategy & Commercialization

Rachid Izzar


Chief Financial Officer

Michael McDonnell

See all our leaders

Join Our Team

Join our mission to bring transformative medicines to those who need them most.