Warren Buffett is celebrating the successes of Berkshire Hathaway’s companies last year and in the 60 years since he took over a struggling New England textile company and began converting it into a massive conglomerate.

Warren Buffett's latest letter to Berkshire Hathaway shareholders offered reflections on mistakes at the company, its growing cash pile, and outlined a slightly revamped annual meeting set for May.

Warren Buffett's Berkshire Hathaway on Saturday posted its third straight record annual operating profit, bolstered by large increases in underwriting earnings and investment income in its insurance businesses.