Ackman, CEO and portfolio manager of Pershing Square Capital Management, L.P., speaks 

Ackman, CEO and portfolio manager of Pershing Square Capital Management, L.P., speaks at the Ira Sohn Investment Conference in New York
Reuters
Bill Ackman, chief executive officer and portfolio manager of Pershing Square Capital Management, L.P., speaks at the Ira Sohn Investment Conference in New York, May 8, 2013. REUTERS/Brendan McDermid
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