Pershing Square is a leading investment firm with $33 billion of assets under management. Pershing Square principally makes investments in a concentrated portfolio of high-quality, simple, predictable, cash-generative durable growth businesses. Pershing Square often works with its portfolio companies as an engaged and active investor to help create substantial long-term value. The firm was founded in 2004 by Bill Ackman who has served as Chief Executive Officer since the firm’s inception.