ACKMAN WILLIAM A — SEC Form 4 filings
SEC reporting owner CIK 1056513. 9 Form 4 filings on record with FilingPulse; latest filed 2026-08-19.
Transaction summary — filings shown
Covers all 9 filings on record, filed 2024-10-22 to 2026-08-19. Counts and totals are arithmetic on values as filed — descriptive data, not a recommendation.
- Open-market purchases (code P, non-derivative): 8 legs across 2 filings — 5,697,171 shares, $259,874,351 total (shares × price as filed).
- Open-market sales (code S, non-derivative): none reported.
- Other reported legs (grants, option exercises, tax withholding, gifts, derivative-security transactions, …): 19.
- Largest priced transaction: purchase of 3,500,000 shares @ $50.00 ($175,000,000) in Pershing Square USA, Ltd., filed 2026-05-01.
By issuer — same filings
Open-market purchase/sale legs on non-derivative securities, grouped by issuer. Role is as filed on the newest filing for that issuer. Dollar totals cover priced legs only (shares × price as filed). Ordered by priced transaction value, largest first.
| Issuer | Role (as filed) | Filings | Purchases (P) | Sales (S) | Other legs |
|---|---|---|---|---|---|
| Pershing Square USA, Ltd. (PSUS) | Chief Executive Officer | 1 | 5 legs · 4,897,171 sh · $240,858,550 | — | — |
| PERSHING SQUARE INC. (PS) | CEO & Chairman, Director, 10% owner | 2 | 3 legs · 800,000 sh · $19,015,801 | — | 8 |
| Howard Hughes Holdings Inc. (HHH) | Director, 10% owner | 3 | — | — | 5 |
| Seaport Entertainment Group Inc. (SEG) | Director, 10% owner | 2 | — | — | 4 |
| Pershing Square SPARC Holdings, Ltd./DE (N) | Chief Executive Officer, Director, 10% owner | 1 | — | — | 2 |
Form 4 filings — ACKMAN WILLIAM A
| Filed | Form | Issuer | Reported transactions | Source |
|---|---|---|---|---|
| 2026-08-19 | 4 | PERSHING SQUARE INC. (PS) jointly with WAA Management LLC | Gift (G): 10,000,000 @ $0 | EDGAR |
| 2026-06-08 | 4 | Howard Hughes Holdings Inc. (HHH) jointly with Pershing Square Capital Management, L.P., Pershing Square HHH Holdings, LLC, PERSHING SQUARE INC., Pershing Square Partner Group LLC, Pershing Square Management, LLC | Grant/award (A): 140,000 @ $7,142.86 | EDGAR |
| 2026-05-04 | 4 | PERSHING SQUARE INC. (PS) jointly with WAA Management LLC | Other (J): 700,000 · Purchase (P): 81,762 @ $22.61 · Purchase (P): 659,540 @ $23.88 · Purchase (P): 58,698 @ $24.20 · Other (J): 168,200 · Other (J): 4,240 · +4 more | EDGAR |
| 2026-05-01 | 4 | Pershing Square USA, Ltd. (PSUS) | Purchase (P): 3,500,000 @ $50 · Purchase (P): 500,000 @ $42 · Purchase (P): 841,000 @ $50 · Purchase (P): 21,200 @ $50 · Purchase (P): 34,971 @ $50 | EDGAR |
| 2026-04-23 | 4 | Seaport Entertainment Group Inc. (SEG) jointly with Pershing Square Capital Management, L.P., PERSHING SQUARE HOLDCO, L.P., Pershing Square Holdco GP, LLC, Pershing Square Management, LLC | Other (J): 90,875 @ $22.25 · Other (J): 90,875 @ $22.25 | EDGAR |
| 2026-04-23 | 4 | Howard Hughes Holdings Inc. (HHH) jointly with Pershing Square Capital Management, L.P., PERSHING SQUARE HOLDCO, L.P., Pershing Square Holdco GP, LLC, Pershing Square Management, LLC | Other (J): 341,033 @ $65.86 · Other (J): 341,033 @ $65.86 | EDGAR |
| 2026-04-23 | 4 | Pershing Square SPARC Holdings, Ltd./DE (N) jointly with Pershing Square Capital Management, L.P., PSCM GP, LLC | Other (J): 0 · Other (J): 0 (derivative) | EDGAR |
| 2025-05-07 | 4 | Howard Hughes Holdings Inc. (HHH) jointly with Pershing Square Capital Management, L.P., PERSHING SQUARE HOLDCO, L.P., Pershing Square Holdco GP, LLC, PS Holdco GP Managing Member LLC | Grant/award (A): 9,000,000 @ $100 · Other (J): 59,393,938 | EDGAR |
| 2024-10-22 | 4 | Seaport Entertainment Group Inc. (SEG) jointly with Pershing Square Capital Management, L.P., PERSHING SQUARE HOLDCO, L.P., Pershing Square Holdco GP, LLC, PS Holdco GP Managing Member LLC | Other (J): 2,929,107 @ $25 · Other (J): 2,094,673 (derivative) @ $0 | EDGAR |
FilingPulse's Form 4 archive currently extends back to 2024-01-11 and is expanding backward through EDGAR history — earlier filings by this insider may not be indexed yet. Names and roles are shown as filed.
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