Berkshire Hathaway (NYSE:BRK.B | BRK.B Price Prediction), now run by CEO Greg Abel with Warren Buffett serving as chairman, disclosed in Q1 2026 13F filings that it nearly tripled its Alphabet stake to roughly 57.8 million shares worth about $16.6 billion, vaulting Alphabet (NASDAQ:GOOGL) into a top-five Berkshire holding. In the same window, Bill Ackman’s Pershing ... Warren Buffett Just Tripled Down on the Stock Bill Ackman Is Selling