Could M&A Boost Pfizer More? Jefferies Thinks So By: Benzinga via Benzinga May 22, 2015 at 11:04 AM EDT Jefferies commented on Pfizer Inc. (NYSE: PFE) Thursday and made it the firm’s top global pick in U.S. large-cap ... Read More >> Related Stocks: Hospira Perrigo Pfizer Shire Plc Ads