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.

Key Takeaways UnitedHealth Group shares surged Friday after Warren Buffett’s Berkshire Hathaway revealed a stake in the embattled healthcare giant.After bottoming at the start of August, the stock has continued to gain momentum,

The investment comes as UnitedHealth faces soaring medical costs, federal investigations, the fallout of the killing of a top executive and a cyberattack last year.

UnitedHealth Group shares popped Friday after Berkshire Hathaway announced it purchased 5 million shares of the insurance giant.

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

Here are some of the stocks making notable moves in Friday's premarket action: UnitedHealth shares are jumping more than 10% after Warren Buffett's Berkshire Hathaway said in a filing it had [built a

Shares of UnitedHealth Group surged nearly 14% on Friday after billionaire Warren Buffett's Berkshire Hathaway bought 5 million shares of the company, providing a shot in the arm for investors who think the health conglomerate will turn around under its new CEO.

Warren Buffett's modus operandi is to wait for price dislocations to present themselves. In a historically pricey stock market, locating value has been virtually impossible. Yet, with UnitedHealth Group stock losing more than half its value since the midpoint of April, a rare price dislocation has emerged.