The lesson: Don't count out Berkshire Hathaway. Buffett's retirement announcement. The decision, at the very end of Berkshire ...

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

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

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

NEW YORK] The Warren Buffett effect is proving true once again, spurring UnitedHealth Group’s reversal this month and giving ...

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