Early movers: AGN, DAL, BID, TSLA, BRK, GOOGL, AMZN & more By: CNBC.com News August 08, 2016 at 08:08 AM EDT These are the stocks posting the largest moves before the bell. Read More >> Related Stocks: Allergan Plc Alphabet-A Amazon.com Berkshire Hathaway Comcast Corp Delta Air Lines Novartis Ag ADR Sotheby's Holdings Tesla, Inc. Time Warner Tyson Foods Vail Resorts Wal-Mart Stores, Inc.