The Giving Pledge was designed to hold the world’s richest people accountable for donating at least half their fortunes in their lifetimes or wills–but so far, only John and Laura Arnold have actually done it.
From well-known Wall Street energy trader to philanthropist, John Arnold began his career trading natural gas at Enron and later ran a hedge fund, Centaurus Partners. By 2012, he had retired and fully pivoted to philanthropy at 38 years old.
