Apple is Berkshire's largest stock holding, but Buffett and Co. own a bigger share of these companies MarketWatchWarren Buffett's Berkshire Hathaway perfectly timed an out-of-left-field investment CNNBerkshire Hathaway Bought Roughly $1 Billion in Activision Blizzard Ahead of Microsoft Acquisition InvestopediaBerkshire Hathaway bought nearly $1 billion in Activision shares in Q4 CNBC TelevisionWarren Buffett boosts his stakes Chevron and RH, cuts back Visa - San Francisco Business Times San Francisco Business TimesView Full Coverage on Google News