TheStreet. On May 2, the day before Warren Buffett said he would retire at the end of 2025, Berkshire Hathaway shares hit a record. And then the stocks tumbled, about 14.5% for each class, just about every day until early August.

UnitedHealth Group stock has been rallying on news that Berkshire Hathaway has invested in the business. Warren Buffett is the CEO of Berkshire Hathaway and the investment could be seen as a possible vote of confidence in UnitedHealth's business.

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.

The Oracle’s of Omaha’s Surprising Reveal Investors worldwide hang on every utterance from Warren Buffett,. His annual shareholder letters are dissected for wisdom, and his quarterly SEC 13F filings trigger market speculation.

UnitedHealth Got a Boost From Berkshire’s Buying. 2 Reasons to Wait to Follow. UnitedHealth Group, the worst-performing stock in the Dow Jones Industrial Average so far this year, got a major boost last week from billionaire investor Warren Buffett. That doesn’t mean everyone else should buy.

The conglomerate sold Apple shares during the second quarter, though the iPhone maker remains Berkshire’s largest stockholding.

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 emphasizes that while achieving success is exciting, effectively correcting mistakes when they occur is equally critical for businesses.