Early movers: HAS, BBT, GIS, T, NAV, CBS & more By: CNBC.com News September 02, 2015 at 07:55 AM EDT These are the stocks posting the largest moves before the bell. Read More >> Related Stocks: AT&T Inc Ambarella Inc Amgen Atlantic Power Corp BB&T Corp CBS Corp GX Defense Tech ETF Genl Mills Gopro Inc Cl A H&R Block Hasbro Navistar International Corp PNC Financial Services Philip Morris International