Bill Ackman

Bill Ackman is a hedge fund manager, activist investor, and philanthropist known for his influence on Wall Street and the investment management industry. Ackman is the founder and chief executive of Pershing Square Capital Management, an investment management company. He graduated magna cum laude from Harvard College and earned an MBA from Harvard Business School, establishing a foundation for a career characterized by deep research and public investment strategies.

After completing his education and working as an analyst, Ackman co-founded Gotham Partners with David P. Berkowitz. The firm initially delivered strong returns but later faced challenges related to illiquid investments and legal issues. Ackman later launched Pershing Square Capital Management with $54 million in capital from personal funds and former business partner Leucadia National. The fund adopted a concentrated investment approach, generating a return of 692 percent net of fees over its first decade, compared to the S&P 500's 132 percent. Pershing Square has since grown into a multi-billion-dollar investment firm, with assets under management reaching $19.7 billion.

Ackman's career features several high-profile and sometimes controversial investment campaigns. Early in his career, he shorted the stock of Municipal Bond Insurance Association and purchased credit default swaps against the company's debt, anticipating the financial instability of insurers backing collateralized debt obligations. Ackman maintained his position for several years and was ultimately proven correct during the financial crisis when MBIA's stock collapsed. Pershing Square also acquired a significant stake in Canadian Pacific Railway, leading a successful proxy contest to replace the company's CEO and board members, with nearly 90 percent of shareholder votes supporting Ackman's slate. Ahead of the 2020 stock market crash, Ackman hedged Pershing Square's portfolio by investing $27 million in credit protection, a move that generated $2.6 billion in less than one month.

Ackman is recognized for presenting complex investment theses in accessible formats, influencing a generation of hedge fund managers. He has stated that his most successful investments have often been controversial, emphasizing the importance of bold, contrarian calls in activist investing. His campaign against Herbalife, which he described as a pyramid scheme, was documented in the film "Betting on Zero." After a period of weak performance, Ackman restructured Pershing Square, resulting in a 58.1 percent return the following year and recognition as one of the world's best-performing hedge funds. LCH Investments named Ackman among the top 20 hedge fund managers after Pershing Square generated $4.5 billion in net gains for investors in a single year, with lifetime gains reaching $11.6 billion.

Outside of finance, Ackman is active in philanthropy and public discourse on education, free speech, and social policy. He co-founded the Pershing Square Foundation, which supports organizations focused on economic development, education, healthcare, human rights, arts, and urban development, committing more than $750 million in grants to over 100 organizations. Ackman is also a signer of The Giving Pledge, committing to donate at least 50 percent of his wealth to charitable causes. He shares educational content, including the lecture "Everything You Need to Know About Finance and Investing in Under an Hour," which has gained popularity among finance students and retail investors. Ackman remains a prominent voice at the intersection of finance, policy, and public life.