Warren Buffett sells $4 billion of Apple, praises Tim Cook and amasses record cash hoard at Berkshire Hathaway.

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.

Warren Buffett is the world’s most famous investor and is renowned for his sober, long-term approach to the substantial equity stakes he takes in companies. One of his best-known sayings about Berkshire Hathaway is,

Berkshire Hathaway's Q2 2025 portfolio sees changes with new stakes, position trims, and notable increases. Read here for more insights.

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

At Berkshire Hathaway’s annual meeting earlier this year, Warren Buffett showed just how much of a fan he is of Apple’s CEO, Tim Cook. “Tim Cook has made Berkshire a lot more than I have made Berkshire,” Buffett said to laughter in the room. It was funny, but considering that Apple is Berkshire’s largest holding, I don’t think it was hyperbole.

The conglomerate sold Apple shares during the second quarter, though the iPhone maker remains Berkshire’s largest stockholding.