If Pfizer Saves Allergan Deal, These Two Things Should Be Changed By: Benzinga via Benzinga April 05, 2016 at 16:13 PM EDT Allergan plc Ordinary Shares (NYSE: AGN) were trading down more than 15 percent on Tuesday afternoon, while shares of Pfizer Inc. ... Read More >> Related Stocks: Allergan Plc Macy's Pfizer