"Are things really changing, or is it just new paint on the same old shed?" he asked Papa on the company's Q2 conference call. Shareholders apparently have their doubts, too. Valeant's stock dove 9.6% in premarket trading Thursday. - read the WSJ story (sub. req.) Related Articles: 'Same old Valeant'? Ackman's presence at quiet-period investor meeting draws fire Is Valeant really stabilizing?