William Ackman is the CEO and portfolio manager of Pershing Square Capital Management LP, an investment advisory firm founded in 2003 and registered with the Securities and Exchange Commission. Pershing Square is a concentrated research-intensive fundamental value investor in long and occasionally short investments in the public markets, typically focusing on large- and mid-cap companies.
Prior to forming Pershing Square, Ackman co-founded Gotham Partners Management, an investment advisor that managed public and private-equity hedge fund portfolios. Prior to Gotham Partners, Ackman began his career in real estate investment banking at Ackman Brothers & Singer. Ackman received an MBA from the Harvard Business School and a bachelor of arts magna cum laude from Harvard College.
His board memberships include chairman of The Howard Hughes Corporation, J.C. Penney, Justice Holdings Limited and the Board of Dean's Advisors of the Harvard Business School, as well as a number of not-for-profit boards, including the Pershing Square Foundation, a charitable foundation he founded in 2007.