UnitedHealth Group CEO Andrew Witty steps down, company suspends annual forecast
1. CEO Andrew Witty unexpectedly steps down, shares tumble 10%. 2. Company suspends 2025 forecast due to increased medical costs. 3. Hemsley, former CEO, returns to lead company amid turmoil. 4. Insurers face challenges from rising costs and returning patient procedures. 5. UnitedHealth aims for growth return by 2026 under new leadership.