Stocks making the biggest premarket moves: PacWest, Berkshire Hathaway, American Airlines, AMC and more
Pacific Western Bank signage is displayed outside of bank branch in Beverly Hills, California on May 4, 2023. Patrick T. Fallon | AFP | Getty Images Check out the companies making the biggest moves in premarket trading: PacWest — The regional bank popped 39% in premarket trading, adding to its nearly 82% gain on Friday.…