When Murdoch leaves, Buffett to increase his lead By: CNBC.com News June 11, 2015 at 11:39 AM EDT As Rupert Murdoch prepares to leave his position at 21st Century Fox, Warren Buffett would increase his lead as oldest CEO in the S&P 500. Read More >> Related Stocks: Berkshire Hathaway Facebook FedEx Corp L Brands M&T Bank Macy's Twenty-First Century Fox Vornado Realty Trust