Andrew Witty, UnitedHealth Group and CEO
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UnitedHealth under criminal investigation for Medicare fraud
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Former UnitedHealth Group chief executive officer Stephen Hemsley to replace Andrew Witty. Here's what we know.
UnitedHealth Group's stock has collapsed nearly 50% in 2025 after a leadership shake-up, surging medical costs, and a DOJ criminal probe into Medicare fraud.
Andrew Witty has resigned as chief executive of US health conglomerate UnitedHealth Group, as the company pulled its financial forecasts for 2025, adding to a sense of crisis after a turbulent period.