Why Did UnitedHealth Group (UNH) Soar 3.36%? Berkshire Hathaway's $1.57B Stake

UnitedHealth Group's stock surged 3.36% in pre-market trading on August 18, 2025, driven by significant investor interest and strategic moves.

Berkshire Hathaway's recent disclosure of a $1.57 billion stake in UnitedHealth Group has been a major catalyst for the company's stock price. This substantial investment has sparked a notable rise in UnitedHealth's shares, reflecting investor confidence in the company's future prospects.

Warren Buffett's Berkshire Hathaway has purchased 5 million shares of UnitedHealth Group, contributing to the stock's significant surge. This move has been particularly impactful, as it marks one of the largest weekly stock surges for UnitedHealth in over a decade.

Despite UnitedHealth's underperformance in 2025, the disclosure of Berkshire Hathaway's stake has provided a much-needed boost to the company's stock. This investment has helped to lift UnitedHealth's shares, even as the broader market has seen mixed performance.