Berkshire Added $4 Billion Alphabet Stake and Further Pared Apple Stock The Wall Street JournalWarren Buffett's Berkshire Hathaway reveals new position in Alphabet CNBCBarchart's Technical Indicators Are Flashing ‘Buy' as Warren Buffett Loads Up on 17.8 Million Shares of Google Stock Yahoo FinanceBuffett's Berkshire Hathaway adds Google stake, exits D.R. Horton, among other Q3 trades (BRK.B:NYSE) Seeking Alpha