Midday movers: AT&T, Pfizer, Twitter & More By: CNBC.com News February 03, 2014 at 12:19 PM EST Take a look at some of Monday's midday movers: Read More >> Related Stocks: AT&T Inc Altria Group Atlantic Power Corp Fireeye Inc Ford Motor General Motors Herbalife Ltd Pfizer Time Warner Cable Twitter, Inc. Verizon Communications