OUR PURPOSE PIONEERING SCIENCE ENVIRONMENT COMMUNITY REPORTING 76 PROMOTING DIVERSITY, EQUITY AND INCLUSION BIOGEN 2021 YEAR IN REVIEW PATIENTS OUR PEOPLE 0.3% 16.9% 17.4% 11.6% 4.8% 1.5% 63.6% 12.2% 5.1% 1.1% 63.4% 2021 2020 46.5% 53.5% 46.1% 53.9% 47.5% 52.5% 48.3% 51.7% 46.9% 53.1% 50.2% 49.8% 51% 49% 52.4% 47.6% 54% 46% 0.4% 0.1% 0.1% 0.1% 18.5% 19.5% 6.6% 4.7% 67.1% 5.3% 4.9% 69.4% 2021 2020 0.2% 26% 28% 26% Biogen’s workforce demographics RACE AND ETHNICITY (U.S. ONLY) IN WORKFORCE AT MANAGEMENT LEVEL 2 AT DIRECTOR LEVEL AND ABOVE POSITIONS HELD BY RACIAL AND ETHNIC MINORITIES (U.S.) WORKFORCE AT MANAGEMENT LEVEL 1 AT DIRECTOR LEVEL 2021 2021 2021 2021 2020 2020 2020 2020 2019 2019 2019 2019 men women Asian American Black or African American Hispanic or Latino Indigenous or Native American Native Hawaiian or Other Pacific Islander Two or More Races White 1. Women in management percentage is inclusive of all management levels, consisting of manager+ level employees. 2. Demographics are inclusive of all management levels, consisting of manager+ level employees.