What You Need to Know About Greg Abel — Warren Buffett's Successor at Berkshire Hathaway

Warren Buffett finally has an official successor at Berkshire Hathaway. On Monday, the 90-year-old investing icon put to rest years of speculation over who would eventually take the reins from him at Berkshire when he confirmed that Gregory Abel, 59, currently a vice chairman of the $640 billion company, is next in line to be its CEO.