TheStreet. Warren Buffett is arguably the most successful investor of all time. He's amassed an amazingly massive net worth ...

Warren Buffett is the most prolific investor of the last 50 years. His holding company — Berkshire Hathaway — has ...

Warren Buffett's Berkshire Hathaway quietly built a stake in a struggling company over the past two quarters, a regulatory ...

Berkshire Hathaway has built up sizable investments in a handful of companies, according to a filing released on Thursday.

In May, a 13F filing revealed that Berkshire Hathaway was buying mystery stocks. Now, at last, we know what they are.

Also notice that although these are six brand-new positions, they add up to about $4 billion, significantly less than the ...

With countless funds to choose from, though, it can be challenging to find the right fit. While everyone's situation is ...

Shares of UnitedHealth Group surged nearly 14% on Friday after billionaire Warren Buffett's Berkshire Hathaway bought 5 ...

Warren Buffett's Berkshire Hathaway built a $1.6 billion stake in UnitedHealth last quarter, marking one of its last wagers ...

Buffett owned UnitedHealth shares before selling his stake in 2010, though his Berkshire Hathaway recently acquired shares.

Berkshire also revealed it has bought the common stocks of security products provider Allegion ( ALLE-N ), home builder DR ...

Berkshire Hathaway revealed four new investments Thursday in steelmaker Nucor, insurer UnitedHealth and two of the nation’s ...