Insider · SEC Form 4 filer
William Ackman
Companies
Where they file as an insider
Pershing Square USA (PSUS) CEO Latest filing Apr 30, 2026
Pershing Square (PS) CEO & Chairman, Director, 10% owner Latest filing Apr 30, 2026
Howard Hughes (HHH) Director, 10% owner Latest filing Nov 17, 2023
Track record
Did their buys beat the typical stock?
Open-market buys23
Quarters checked 6 months later1
Beat the typical stock —
Quarters too new to check2
Too soon to tell. 1 quarter has finished so far. We show a record once 3 have.
Pershing Square (PS) Bought Apr 30, 2026 · $19M · 800,000 shares Too new Too new. Its 6-month check uses prices as of Dec 31, 2026.
Pershing Square USA (PSUS) Bought Apr 30, 2026 · $241M · 4.9M shares Too new Too new. Its 6-month check uses prices as of Dec 31, 2026.
Howard Hughes (HHH) Bought Oct 4–Nov 17, 2023 · $47.8M · 684,299 shares Behind typical Dec 31, 2023 $85.55 → Jun 30, 2024 $64.82 · −24.2% (typical stock −1.2%)
Each row is one stock in one quarter, however many buys it took. We take the stock's price at the end of that quarter and again 6 months later, and compare it with the typical stock over the same dates. Prices are quarter-end values from funds' 13F reports (the middle value across 3 or more funds), through Sep 30, 2026. Moves past 3 times up or down, mostly stock splits, are left out. How we tested this.
Past results. This is data, not advice.
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