Bill Ackman

About the author

Bill Ackman is an American hedge fund manager and the founder and chief executive of Pershing Square Capital Management, an activist investment firm. He co-founded his first firm, Gotham Partners, in 1992, the year he earned an MBA from Harvard Business School. He is known for public campaigns to change how companies are run and for a large, long-running short position against Herbalife that drew a public fight with fellow investor Carl Icahn.

Photo: Senate Democrats, CC BY 2.0, via Wikimedia Commons

Memos, letters and research

All research

Pershing Square Holdings Annual Letters and Investor Presentations Pershing Square

Bill Ackman's annual shareholder letters and investor presentations for Pershing Square Holdings. This is a rare public, year-by-year record of how a concentrated activist fund picks, defends and exits its positions.

Letters Intermediate Annual letter each February with the annual report, plus an annual investor presentation and semiannual reports