What Happened? Shares of health insurance company UnitedHealth (NYSE:UNH) fell 3% in the afternoon session after investors took some profits off the table as markets awaited signals on future monetary policy from the Federal Reserve's Jackson Hole symposium later in the week.

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.

Berkshire Hathaway invests $1.57B in UnitedHealth (UNH), boosting shares by 10.5%. Discover key insights on its challenges, outlook, and analyst ratings.

Berkshire Hathaway just disclosed that it dumped $1.6 billion into a sinking ship, and Wall Street instantly paid attention.

Berkshire Hathaway’s portfolio added six new stocks, including the three new secret stocks. Warren Buffett was a net seller of stocks for the eleventh straight quarter.

UnitedHealth (UNH) stock climbed 6.7% in Thursday afternoon trading after Warren Buffett's Berkshire Hathaway (BRK.B) (BRK.A) disclosed that it acquired a new stake in the health insurer during Q2 2025.

Warren Buffett’s Berkshire Hathaway revealed a position in embattled healthcare giant UnitedHealth Group while showing smaller stakes in longtime holdings Apple and Bank of America, according to a regulatory filing Thursday.

Warren Buffett’s Berkshire Hathaway (NYSE: BRK.B) just revealed its highly anticipated buys and sells of Q2 2025. Understandably, all the focus is on the Oracle of Omaha’s purchase of more than 5 million shares in UnitedHealth Group (NYSE: UNH).