Take a look at some of the biggest movers in the premarket:

Urban Outfitters (URBN) – Urban Outfitters shares are under pressure after the apparel retailer said comparable holiday season sales fell 9%, and also announced the departure of Trish Donnelly as CEO of the Urban Outfitters Group unit. Sheila Harrington, CEO of the company's Free People Group division, will now also be in charge of the Urban Outfitters Group. The stock fell 10% in premarket trading as of 7:36 a.m. ET.