Early movers: PFE, BIIB, TAP, CVS, MNK, IMS, CLX, COST & more By: CNBC.com News May 03, 2016 at 07:50 AM EDT These are the stocks posting the largest moves before the bell. Read More >> Related Stocks: American International Group Apple Biogen Idec CVS Health Corp Clorox Co Costco Wholesale Johnson & Johnson Mallinckrodt plc Molson Coors Brewing Mylan Pfizer Pitney Bowes Texas Roadhouse Inc Wal-Mart Stores, Inc. Yelp Inc