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May 18, 2026 12:01 PM

Why Is UnitedHealth Stock Trading Lower On Monday?

UnitedHealth Group Inc. (NYSE:UNH) stock is trading lower during Monday's premarket session following Berkshire Hathaway's (NYSE:BRK)(NYSE:BRK)disclosure that it liquidated its entire position in the U.S. insurance giant.

According to Berkshire's latest 13F filing, reflecting holdings as of March 31, the conglomerate exited its entire position of about 5 million shares in UNH.

The move is notable as Berkshire initiated the stake only in the second quarter of 2025, holding the stock for less than a year.

Warren Buffett's fund bought little more than 5 million shares, and Burry disclosed in 13F filings that he purchased call contracts against 350,000 shares of UnitedHealth.

The divestment represents one element of a comprehensive portfolio realignment being executed by Greg Abel, who formally assumed the role of CEO at Berkshire on January 1 following Warren Buffett's transition.

UnitedHealth Tracks Employee AI Usage As Company Expands Automation Push

In a separate update, UnitedHealth is reportedly monitoring how frequently certain employees use artificial intelligence ...

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