Ackman, Paulson Funds Hit by Scathing Short-Seller Report on Valeant

Investors like Bill Ackman (Trades, Portfolio), Ruane Cunniff (Trades, Portfolio) and John Paulson (Trades, Portfolio) took hits to their portfolio today after a company published a damning reporting on one of their key holdings, Valeant Pharmaceutical (VRX). The company’s shares plunged as much as 33% on Wednesday, after providing the investors solid paper gains this year.