William Ackman, CEO of Pershing Square Capital Management, speaks at the Partner 

William Ackman, CEO of Pershing Square Capital Management, speaks at the Partner Connect 2013 conference in Boston
Reuters
William Ackman, CEO of Pershing Square Capital Management, speaks at the Partner Connect 2013 conference, sponsored by Thomson Reuters, in Boston April 5, 2013. REUTERS/Brian Snyder
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