Greg Roumeliotis and Alexandra Sage

Even With Ackman on Board, Valeant Faces New Criminal Probe

U.S. prosecutors have opened a criminal investigation into Valeant Pharmaceuticals International Inc. over whether it hid from insurers its relationship with a specialty pharmacy that helped boost its drug sales, the Wall Street Journal reported on Wednesday. Lawyers at the U.S. Attorney’s Manhattan office are trying to gauge whether concealing those ties may have amounted…