https://www.reuters.com/article/us-berkshire-buffet-apple/apple-hits-record-high-after-buffetts-berkshire-increases-stake-idUSKBN1I506R >Apple Inc's stock hit an all-time high on Friday after Warren Buffett's Berkshire Hathaway Inc disclosed it had bought 75 million more shares of the iPhone maker in the first three months of the year.