Today, we're looking at Warren Buffett's Berkshire Hathaway's (BRK-B) decision to sell Apple (AAPL) shares while adding UnitedHealth Group (UNH) shares. Editor's note: This post was updated to reflect the proper name for UnitedHealth Group.

Warren Buffett’s Berkshire Hathaway (BRK.B) sold shares in Apple (AAPL) last quarter, [while adding UnitedHealth](https:

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.

Berkshire Hathaway revealed four new investments Thursday in steelmaker Nucor, insurer UnitedHealth and two of the nation’s biggest homebuilders — Lennar and DR Horton — but only one of the investments was big enough to ensure that legendary investor Warren Buffett may have handled them.

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.

The blue-chip Dow Jones ended higher after hitting an intraday record high on Friday, as UnitedHealth’s shares jumped after Berkshire Hathaway raised its stake, but other Wall Street indexes slipped as mixed data clouded the Federal Reserve’s next monetary policy move.

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

The blue-chip index Dow Jones hit a record high on Friday as UnitedHealth jumped after Berkshire Hathaway raised its stake in the health insurer and on hopes of an Fed interest rate cut in September.