Holden Karnofsky

Holden Karnofsky
Co-CEO
Image of Holden Karnofsky

Holden Karnofsky sets the strategy for and oversees all longtermist cause selection, prioritization, and grantmaking at Open Philanthropy, including our work on global catastrophic risks. Holden co-founded GiveWell in 2007, and began co-developing Open Philanthropy (initially called GiveWell Labs) in 2011. He has a degree in Social Studies from Harvard University.