Berkshire Hathaway recently filed its second-quarter 13F form, revealing its stock holdings at the end of June.

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

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.

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

Warren Buffett’s net worth makes him 28 times richer than Donald Trump thanks to decades of savvy investing and Berkshire Hathaway's growth.

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

For decades, Berkshire Hathaway (NYSE:BRK-A)(NYSE:BRK-B) has been synonymous with Warren Buffett, the legendary investor whose Midas touch turned a modest textile company into a global powerhouse. However,

Berkshire Hathaway is expected to reveal its mystery stock investment in its 13-F filing on Thursday. Here’s what to expect from the conglomerate on Aug. 14.