The MacArthur Foundation is dedicated to fostering positive change and supporting individuals and organizations that are committed to creating a more just, verdant, and peaceful world. They provide support to creative individuals and effective institutions that are addressing pressing social challenges. The foundation's work includes the selection of MacArthur Fellows, who receive support for their innovative contributions in a variety of fields.

Additionally, the foundation works to protect human rights, promote global conservation and security, improve urban areas, and explore the impact of technology on children and society. Through their initiatives and programs, the MacArthur Foundation aims to bring about significant progress on critical issues such as climate change, nuclear risk reduction, justice reform, and corruption prevention. They also prioritize the promotion of journalism and their commitment to Chicago, the foundation's headquarters.

Overall, the MacArthur Foundation is dedicated to driving positive change, supporting impactful initiatives, and creating a better future for all