By JEFF GOLDSMITH

It has happened at least a dozen times. I mention John Arnold and am greeted by knowledgeable healthcare colleagues with a blank stare. Houston billionaire John Arnold is the most powerful man in US healthcare that nobody has ever heard of. An investing savant, Arnold made $50k in high school trading collectors’ hockey cards over the Internet. He became the star natural gas trader at Enron in his early twenties. Arnold, who played no role whatever in Enron’s storied collapse, left the company in 2001 with an $8 million bonus. In 2002, at age 28, Arnold founded a hedge fund, Centaurus Advisors, focusing on energy investing, and reeled off a decade of 100% annual returns.

Bored with investing and by then a multi-billionaire, Arnold shut down Centaurus in 2012, and decided to change the world. With his Yale trained attorney wife Laura, John created a family foundation. and funded it with a large share of their personal wealth. For reasons we will explore more fully below, in 2019, Arnold converted their foundation to a ”for-profit charity” known as Arnold Ventures. At nearly $4.7 billion in assets in 2024, Arnold Ventures was about a third of the size of the lions in foundation world, Robert Wood Johnson ($14.7 billion in 2023) and Ford ($13.7 billion in 2024). Arnold Ventures 501c3 grantmaking subsidiary gave away a cool $194 million in 2024 to a bewildering array of grantees from American Enterprise Institute to Families USA.

But Arnold’s business model is fundamentally different than these legacy charitable foundations.