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Fortune
Fortune
Sheryl Estrada

As UnitedHealth’s troubles mount, new CFO faces challenge to restore confidence

In this photo illustration a United Health Group logo seen displayed on a smartphone screen with stock market in the background. (Credit: Getty Images)

Good morning. We’re in the second half of 2025, and CFO turnover continues.

This time, it’s at embattled UnitedHealth Group—ranked No. 3 on the Fortune 500 and the largest U.S. health care company by revenue in 2024. John F. Rex, who joined the company in 2012 and has served as CFO since 2016, is being replaced—not by an internal candidate, but by an external hire. Rex will become a strategic advisor to the CEO, Stephen J. Hemsley. 

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