Diana serves on the boards of Citigroup, Brookfield Asset Management and Sotheby’s. She also serves on several charitable boards. She chairs the boards of Accion, Hot Bread Kitchen and Hudson River Park Trust. Other board memberships include the Mailman School of Public Health and the International Women’s Health Coalition. She is also a member of the Council on Foreign Relations and the Economic Club of New York.

She earned her AB from Dartmouth College, her MBA from the Columbia School of Business, and her MPH from the Mailman School of Public Health at Columbia.