CNBC·2025-11-22 12:50Core Insights - Berkshire Hathaway purchased 17.8 million Class A shares of Alphabet in Q3, increasing in market value by $415 million to nearly $5.35 billion [1] - Alphabet's stock gained 8.4% this week, contrasting with declines in major tech rivals, amid concerns over an "AI bubble" [2] - There is speculation that CEO-designate Greg Abel may adopt a different investment strategy, showing a willingness to pay more for potential future growth, which diverges from Warren Buffett's traditional approach [2] Financial Performance - Berkshire Hathaway's Class A stock price is $755,320, and Class B stock price is $504.04 [8] - The P/E ratio for Berkshire B shares is 16.12 [8] - As of September 30, Berkshire's market capitalization is approximately $1.09 trillion, with cash reserves of $381.7 billion, reflecting a 10.9% increase from June 30 [8]