Filing: Berkshire Hathaway discloses a $4.3B stake in Alphabet in Q3, a surprising move given Warren Buffett's reluctance toward high-growth, tech-driven stocks (Yun Li/CNBC)

Berkshire Hathaway, led by Warren Buffett, disclosed a $4.3 billion stake in Alphabet during the third quarter of 2025. This investment is notable given Buffett's historical reluctance to invest in high-growth, technology-driven companies. The filing highlights a significant shift in strategy for the investment firm, which has typically favored more traditional industries. The news has sparked interest among investors and analysts, considering Buffett's previous cautious stance on tech stocks.