SEC filing shows Berkshire Hathaway nearly quadrupled investment in Apple last quarter to $7.7B, up from $2B in previous quarter New York Times : New York Times 2017-02-15 Apple, Berkshire Hathaway, New York Times, SEC Related Coverage View article MacRumors View article VentureBeat View article AOL View article INSIDER View article Fortune View article Business Insider View article Investor's Business Daily View article Bloomberg View article Investor's Business Daily View article Forbes View article AppleInsider View article INSIDER View article AppleInsider View article Associated Press View article Reuters View article INSIDER View article Forbes View article Forbes View article 9to5Mac