Stocks making the biggest moves premarket: On Holding, Under Armour, GameStop, AST SpaceMobile & more

Check out the companies making headlines before the bell: Under Armour — The sportswear company slid 14% after posting a loss of 3 cents on revenue of $1.17 billion. Analysts polled by LSEG were anticipating a loss of 2 cents on revenue of $1.68 billion. GameStop , eBay — Shares of GameStop dropped more than 4% after online retailer eBay turned down a $56 billion takeover bid Tuesday from the electronics retailer over doubts over the financing of the deal. Shares of Ebay were slightly lower. …