Bill Ackman’s Portfolio

Founder & CEO · Pershing Square Capital Management

Runs one of the most concentrated large portfolios in the 13F universe — typically fewer than a dozen positions — and is known for high-profile activist campaigns.

Bill Ackman's Pershing Square Capital Management entered Q1 2026 with a characteristically concentrated $13.7B portfolio spread across just eleven positions, down from $15.5B a quarter earlier. Read the full Q1 2026 analysis →

Data source: Pershing Square Capital Management’s SEC Form 13F-HR filings, most recently filed May 15, 2026. 13F filings disclose long U.S. equity positions only, with up to a 45-day lag. How we process this data →