Stocks making the biggest moves premarket: Berkshire Hathaway, General Electric, Twitter & more By: CNBC.com News February 25, 2019 at 07:54 AM EST These are the stocks posting the largest moves before the bell. Read More >> Related Stocks: Berkshire Hathaway Caesars Entertainment Inc Danaher Corp General Electric Kraft Heinz Company Newmont Mining Norwegian Cruise Ord PG&E Corp Qualcomm, Inc. Sony Corp Spark Therap Twitter, Inc.