Allergan's CEO Explains Why Fighting Bill Ackman Was 'All Consuming' By: Benzinga via Benzinga February 10, 2015 at 14:27 PM EST Allergan, Inc. (NYSE: AGN) has been on a roll in the past year. Not only did the company crushed Bill Ackman’s attempt of ... Read More >> Related Stocks: Valeant Pharmaceuticals International, Inc.