Stocks making the biggest moves in the premarket: Costco, AstraZeneca, Novavax, Harley & more

The stocks making the biggest moves in premarket trading include Costco, AstraZeneca, Novavax, Harley-Davidson & more.The stocks making the biggest moves in premarket trading include Costco, AstraZeneca, Novavax, Harley-Davidson & more.