Health-insurance giant said it was making a number of governance changes, including the appointment of a new lead independent director and the formation of a public responsibility committee.

Andrew Witty's pay, UnitedHealth's challenges, and regulatory woes unfold. Learn what the $1.57B Berkshire stake means for this healthcare giant.

UnitedHealth Group (UNH) stock is still down 40% YTD but has surged more than +20% this month following reports that Warren Buffett, and other billionaire hedge fund managers have taken a stake in the company.

This investment signifies Buffett's re-entry into UNH after liquidating his entire position back in 2010, indicating that he perceives significant value at

Shares of UnitedHealth Group are surging before the market open Friday as Warren Buffett's Berkshire Hathaway disclosed that it recently purchased shares of the beleaguered insurer. Berkshire Hathaway bought around 5 million shares of UnitedHealth last quarter,

UnitedHealth Group Inc. and Elevance Health Inc. told Colorado regulators they will exit some individual health plans in the state, the latest sign of instability in the Affordable Care Act marketplaces.

Following an investment by Warren Buffett's Berkshire Hathaway, many eyes are on the healthcare insurer these days.

Warren Buffett's Berkshire Hathaway has acquired 5 million shares in UnitedHealth Group , a regulatory filing showed on Thursday, sending the health insurer's stock up 7% in extended trading.

UnitedHealth Group is scheduled to report second-quarter results on Tuesday morning, capping a tumultuous first half of the year for the health insurance giant.

UnitedHealth was a star stock late last week, when it was revealed that Warren Buffett's Berkshire Hathaway had taken a $1.6 billion stake in the company's equity. On Monday, lingering positive sentiment on UnitedHealth was boosted by that price target bump.