UPDATE 1-Ackman urges Allergan board to 'wake up' on Valeant talks
September 09, 2014 at 20:02 PM EDT
BOSTON, Sept 9 (Reuters) - After months of staying largely silent on a deal he is trying to broker, billionaire William Ackman on Tuesday criticized Allergan Inc 's board of directors, urging them to "wake up" and at least listen to what potential purchaser Valeant Pharmaceuticals has to offer the Botox maker.