Ackman’s Pershing Square now largest Valeant shareholder Posted on June 7, 2016 at 6:07 pm. Ruane Cunniff & Goldfarb, manager of the Sequoia Fund, dumped half its Valeant (VRX) position to 16.1 million shares i.e. [Read More]To access this content, you must be a member. Visit the Plans page for details.