UnitedHealth Group stock has been rallying on news that Berkshire Hathaway has invested in the business. Warren Buffett is ...

UnitedHealth Group ($UNH) stock continues to be under pressure, down more than 50% since mid-April. Wall Street remains ...

UnitedHealth Group faces a significant stock downturn, plummeting over 50% since mid-April. Analysts express concern over ...

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Buffett, through Berkshire, bought more than 5 million shares of the managed care company, worth an estimated $1.6 billion.