Introduction Our People and Culture Environmental Health 3 2021 Sustainability Report A Modern, High-Performing Health System Responsible Business Practices Performance Data At UnitedHealth Group, we believe a healthy population is at the very heart of the idea of sustainability in our society. The more than 350,000 people across Optum and UnitedHealthcare are committed to furthering our mission to help people live healthier lives and to help make the health system work better for everyone. Given our reach and resources – and the millions of people we touch each day – we feel a deep sense of responsibility to chart a more sustainable path forward, helping to build a modern, high-performing health system that improves access, affordability, outcomes and experiences for people who depend on it. That’s what makes a health care system sustainable, and it is embedded in our mission and throughout our business strategy. This report, told through the stories of our colleagues and partners – in their own words, work and deeds – is our way of sharing our progress. It is a story of partnership, collaboration and investment seeking to improve the experiences of those who rely on the health system. It is also a story of humility, as there is so much more work left to do. But as you will see in the pages of this report, my colleagues find a profound sense of purpose and inspiration in this work. We approach these challenges with determination, intensity and focus – setting clear, measurable goals and objectives, raising the bar at every point of progress and holding ourselves accountable when we fall short. To drive greater alignment and coordination across our enterprise efforts, in February we appointed Patricia L. Lewis to serve as our first chief sustainability officer and lead this important work. The goals, actions and initiatives outlined in this report are bold ambitions. But bold ambitions are what these challenges require – and that is what inspires my colleagues to carry this work forward every day. Sincerely, Andrew Witty CEO, UnitedHealth Group A message from our CEO