Warren Buffett speaks during the Berkshire Hathaway Annual Shareholders Meeting in Omaha, Nebraska on May 3, 2025.Warren Buffett's Berkshire Hathaway revealed a new position in internet and AI giant Alphabet in a filing, making the Google parent the conglomerate's 10th largest equity holding at the end of September.Berkshire disclosed a $4.3 billion stake in Alphabet at the end of the third quarter, the filing showed. It marked a surprising move given Buffett's traditional value investing philosophy and rel ...