Stephen B. Heintz is president and CEO of the Rockefeller Brothers Fund, a family foundation with an endowment of approximately $1.2 billion that advances social change for a more just, sustainable, and peaceful world. Heintz coined the term “acupuncture philanthropy” to describe his philanthropic approach of leveraging modest financial assets to trigger larger systemic change on critical issues. In 2010, he set an ambitious path to align investment of the Fund’s financial assets with its mission, resulting in its 2014 decision to divest from fossil fuels and establishing the RBF as a leader in the Divest-Invest movement. Heintz, who began his professional life in public service for the stat