美股异动 | Q2获股神巴菲特建仓500万股 联合健康(UNH.US)涨近10%

Core Viewpoint - UnitedHealth (UNH.US) shares opened nearly 10% higher at $298.62 following the disclosure of significant investments by notable funds and investors in the company [1] Group 1: Investment Activity - Berkshire Hathaway, led by Warren Buffett, reported a new position in UnitedHealth with over 5 million shares as of June 30 [1] - Renaissance Technologies, a major hedge fund, increased its holdings in UnitedHealth by 1.35 million shares during the second quarter [1] - Dodge & Cox significantly raised its stake in UnitedHealth by 4.73 million shares [1] - David Tepper's Appaloosa Fund added 230,000 shares to its position in UnitedHealth [1] - Notable investors, including Michael Burry and Saudi Public Investment Fund (PIF), purchased call options for UnitedHealth [1]