Market Insider

Stocks making the biggest moves premarket: Block, Tupperware, Nikola and more

An employee of Tupperware Brands Corporation is at work on the production line at the group’s plant in Joue-les-Tours, centre France, on the day of its 40th anniversary. AFP PHOTO / JEAN-FRANCOIS MONIER (Photo credit should read JEAN-FRANCOIS MONIER/AFP/Getty Images)

Jean-Francois Monier | AFP | Getty Images

Check out the companies making headlines before the bell Friday.