Bill Ackman — SPARQNOW

At-a-Glance

Chief Executive Officer at Pershing Square Capital Management, L.P. since 2003.
Founder of Pershing Square Capital Management and co-founder of Gotham Partners in 1992.
Described as an activist investor.
Estimated net worth of $9.4 billion as of July 2025.
Signatory of The Giving Pledge, committing to donate at least 50% of his wealth.
Holds an MBA (1992) and a BA magna cum laude (1988) from Harvard University.

Biography

William Albert Ackman is an American billionaire hedge fund manager and the founder and Chief Executive Officer of Pershing Square Capital Management, L.P., a position he has held since 2003. He is widely recognized as an activist investor. As of July 2025, Forbes estimated his net worth at $9.4 billion.

Ackman began his career in investment management in 1992 when he co-founded Gotham Partners with David P. Berkowitz, making small investments in public companies.