Botox maker Allergan Inc on Friday accused rival Valeant Pharmaceuticals International and billionaire investor William Ackman of violating securities laws by using insider information as they prepared a takeover bid for the drug company. In a civil lawsuit filed in federal court in California, Allergan said Ackman’s Pershing Square Capital Management and Valeant “hatched” an… Continue reading VIDEO: Allergan Sues Valeant, Ackman For Alleged Insider Trading