Alphabet stock jumps after Berkshire adds new $4.3B stake

Shares of Alphabet Inc. surged in premarket trading on Monday after Berkshire Hathaway Inc. revealed a major new position in the Google parent company, marking its most significant portfolio addition in the third quarter of 2025. A regulatory filing on Friday showed that Berkshire acquired 17.8 million Class A shares of Alphabet, valued at $4. ...