OUR PURPOSE PIONEERING SCIENCE ENVIRONMENT COMMUNITY REPORTING 65 ENABLING EMPLOYEES TO THRIVE BIOGEN 2021 YEAR IN REVIEW PATIENTS OUR PEOPLE OVERVIEW Key Biogen employee benefits that support and care for caregivers Employee benefit 100% of employees 90% or more employees Over two-thirds of employees Under consideration Financial support 16 weeks of paid birth-parent leave with 100% base pay Global standard of 12–16 weeks 8 weeks paid caregiver leave for non-birth parents Global standard of 8 weeks 8 weeks paid caregiver leave for any employee caring for a seriously ill family member Global standard of 8 weeks Up to 5 days paid bereavement leave for death of family member, including pregnancy loss Global standard of 5 days Up to $10,000 (lifetime maximum of $20,000) for adoption / surrogacy expenses $1,000 for expenses associated with a birth doula $100/day in childcare reimbursement for up to 80 days Remote / hybrid employees eligible for a $1,500 stipend to purchase home office equipment Practical support On-site childcare Subsidized backup child and elder care with Bright Horizons Evaluating capability to expand globally Child and elder care resource and referral service No-cost access to mental health support (app, virtual counselor) Employee Resource Network Concierge services Time and flexibility Flexible work arrangements 8 hours paid time off to volunteer 1 month paid sabbatical every 6 years                 