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.

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.

Some Washington policymakers with financial stakes in UnitedHealth Group are selling their stocks in the company as it struggles financially and the Trump administration investigates its billing practices.

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.

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.

UnitedHealth Group (UNH) has recently been on Zacks.com's list of the most searched stocks. Therefore, you might want to consider some of the key factors that could influence the stock's performance in the near future.

NEW YORK] The Warren Buffett effect is proving true once again, spurring UnitedHealth Group’s reversal this month and giving the Dow Jones Industrial Average a push towards its first closing high since last year.

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