One way UnitedHealth puts its excess cash to work is by paying -- and steadily growing -- its dividend payment. This is a feature that Buffett undoubtedly appreciates. Known for his unwavering patience, Buffett often holds on to core positions for years, if not decades.

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.

UNH stock soared after Warren Buffett’s Berkshire Hathaway revealed it bought shares of the healthcare company. Nonetheless, UnitedHealth faces a long list of unresolved issues.

Warren Buffett's Berkshire Hathaway increased its holdings in UnitedHealth Group stock, and also added positions in D.R. Horton, Lamar Advertising, and Nucor.

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

In this video, I will go over the second-quarter activities of 12 super investors -- which stocks they bought and which they sold. I'll be talking about Warren Buffett, Bill Ackman, Chuck Akre, Howard Marks,