Introduction 17 2021 Sustainability Report A Modern, High-Performing Health System Our People and Culture Environmental Health Responsible Business Practices Performance Data UnitedHealth Group and our distinct, yet complementary, businesses of Optum and UnitedHealthcare are working to help build a modern, high- performing health system with improved access, affordability, outcomes and experiences. 50M people served through UnitedHealthcare’s portfolio of products. 60M+ people served through Optum Rx in 2021. 2.2M+ people served through value-based care arrangements by Optum Health.