Warren Buffett formally stepped down as chief executive officer of Berkshire Hathaway on the final day of 2025, ending a 60-year tenure that reshaped American corporate history. The transition, long anticipated by investors and company insiders, marks the close of one of the most influential leadership runs in global business. At the age of 95, Buffett will remain chairman of the holding company he transformed from a struggling textile firm into a diversified conglomerate valued at more than