Analyst: Bill Ackman's Zoetis Move Casts Doubt On Allergan Bid By: Benzinga via Benzinga November 12, 2014 at 16:04 PM EST Allergan, Inc.'s (NYSE: AGN) acquisition by Valeant Pharmaceuticals Intl Inc (NYSE: VRX) is looking less likely, in light of a ... Read More >> Related Stocks: Macy's Valeant Pharmaceuticals International, Inc. Zoetis