Berkshire Hathaway's surprise $1.6 billion investment in UnitedHealth Group has sent shockwaves through markets, triggering the healthcare giant's strongest single-day surge since 2020. The move marks ...

UnitedHealth was a star stock late last week, when it was revealed that Warren Buffett's Berkshire Hathaway had taken a $1.6 ...

The filing showed Berkshire bought more than 5 million shares, sparking a 13% surge that made UnitedHealth the top gainer on ...