95-year-old Buffett officially retires, steps down as CEO of Berkshire Hathaway According to CaiLian News, on December 31, 2025 (local time), renowned investor Warren Buffett officially retired, stepping down from his role as CEO of Berkshire Hathaway. Warren Buffett, now 95 years old, has long served as the CEO of the well-known investment company Berkshire Hathaway. In November 2025, he announced that he would resign from his position by the end of the year but would continue to serve as Chairman of the Board and retain a 'significant amount' of shares.