Bill Ackman

Billionaire hedge fund manager and activist investor Bill Ackman is a leading and sometimes controversial figure in finance. He founded Pershing Square Capital Management in 2004 and serves as CEO of the firm, which now manages over $18.3 billion in assets. Known for bold, activist strategies, Ackman has driven major changes at companies like Chipotle Mexican Grill and Canadian Pacific Railway. Ackman is highly active on social media, frequently sharing his views on finance, politics, and culture, with over 1 million followers on X. He is also co-trustee of the Pershing Square Foundation, established in 2006.