Bill Ackman

William Albert Ackman is an American investor and hedge fund manager who is the founder and chief executive officer of Pershing Square Capital Management, a hedge fund management company. He is known for his activist investing strategies and high-profile investment campaigns. Ackman founded Pershing Square in 2004, and the fund is known for taking large stakes in companies and then working to unlock shareholder value through operational improvements, management changes, or strategic alternatives. His investment approach involves extensive fundamental research and a willingness to engage in public battles with company management when he believes changes are needed. Some of his most notable investments and activist campaigns include his positions in companies like Canadian Pacific Railway, Chipotle Mexican Grill, and his short position against Herbalife, which lasted several years and involved public presentations arguing that the company was a pyramid scheme. Ackman graduated magna cum laude from Harvard College in 1988 and received his MBA from Harvard Business School in 1992. He has been involved in various philanthropic endeavors and has been a vocal advocate on social and political issues.