Warren Buffett, 96, has left Berkshire Hathaway’s top leadership ranks after leading the company for about 60 years, stepping down as CEO at the end of 2025 and later relinquishing the chairmanship while remaining a director. The existing leadership record identifies Sept. 18 as the effective date, names Howard G. Buffett as chairman and says Greg Abel became CEO on Jan. 1; the newer account does not specify a separate effective date or use the chairman-emeritus designation. Buffett’s original Berkshire purchase began with an 11.375 offer after he had agreed to sell at $11.50, prompting him to buy control and dismiss Seabury Stanton. Although Buffett later called it his dumbest stock purchase and said Berkshire could have been worth $200 billion more had he invested directly in insurance, the company became the base for his fortune. Berkshire acquired National Indemnity in 1967 and expanded across insurance, railroads, utilities and energy, manufacturing and retail, with 2025 revenue of $371.4 billion, shareholders’ equity of $717.4 billion and a market capitalization of roughly $1.1 trillion. Buffett’s Berkshire holdings account for about 99.5% of his $145 billion fortune, most of which he plans to give to charity and family-run foundations.