Warren Buffett went viral, stacked cash, and dropped a bombshell in 2025. Here are 6 highlights of his last year as CEO.

Warren Buffett, the CEO of Berkshire Hathaway.

Nati Harnik/AP

• Warren Buffett rocked the business world in 2025 by announcing he would step down as CEO.
• The Berkshire Hathaway boss penned two of his famous shareholder letters and bet on Alphabet.
• Buffett briefly went viral and grew Berkshire's cash pile to a record level of over $350 billion.

Warren Buffett sent shockwaves through the business world in 2025 when he revealed it would be his final year as Berkshire Hathaway CEO ...