UnitedHealth Group's stock tumbled 5.28% in pre-market trading on Monday, marking a significant decline for the managed healthcare giant.
The sharp drop followed the disclosure that Berkshire Hathaway sold its stake in UnitedHealth Group. The conglomerate's portfolio changes, revealed in a regulatory filing, included the complete exit from the healthcare company as part of efforts to unwind positions tied to departed investment manager Todd Combs.
Berkshire Hathaway's sale of UnitedHealth was among several notable divestments, which also included Mastercard, Visa, Amazon, Aon, and other stocks. The move by Warren Buffett's conglomerate triggered negative sentiment toward UnitedHealth shares in the pre-market session.