Over four decades, Feeney gave away more than $8 billion through Atlantic Philanthropies.
Almost $1 billion went to Cornell University, his old school. Money went to peace efforts in Northern Ireland, health care in Vietnam, a new Cornell tech campus in New York and a campaign to end the death penalty in the U.S.
In 2020, the foundation closed its doors, with a farewell ceremony held over Zoom. It was the largest foundation in history to set out to spend its entire fortune, and do it.