Ackman exits Valeant position…stock tanks Posted on March 13, 2017 at 6:40 pm. Bill Ackman’s Pershing Square has exited his 5.3% position in Valeant Pharmaceuticals (VRX), selling 27.2 million shares at about $11 [Read More]To access this content, you must be a member. Visit the Plans page for details.