Warren Buffett is slated to step down as Berkshire Hathaway’s CEO at year-end—100 days from Sept. 23—setting the stage for successor Greg Abel and Berkshire’s investment lieutenants to potentially keep trimming Apple and rebalance an equity portfolio that’s already been shifting, according to new analysis and prior Fortune reporting. The 100‑day clock Buffett told shareholders at the May annual meeting he intends to retire as CEO at the end of the year, recommending Abel as the next chief, a timeline n ...