Stocks making the biggest moves premarket: BRKB, AAPL, WFC, TSLA, TSN, GPT, BX & more By: CNBC.com News May 07, 2018 at 08:24 AM EDT These are the stocks posting the largest moves before the bell. Read More >> Related Stocks: Apple Berkshire Hathaway Tesla, Inc. Tyson Foods Wells Fargo