Skip to contentACKMAN WILLIAM A — Howard Hughes Corp insider: 153 transactions · InsiderLensACKMAN WILLIAM A
- 10% owner at WENDYS INTERNATIONAL INC · on record since Mar 17, 2006
- 10% owner at CERIDIAN CORP /DE/ · on record since Feb 28, 2007
- 10% owner at OLD STONE CORP · on record since Mar 22, 2007
- 10% owner at BARNES & NOBLE INC · on record since Sep 26, 2007
- Former Director at GENERAL GROWTH PROPERTIES INC · on record since Mar 10, 2010
- 10% owner at BORDERS GROUP INC · on record since Nov 29, 2007
- See footnote (1) at BARNES & NOBLE INC · on record since Sep 19, 2008
- Former 10% Owner at Winthrop Realty Trust · on record since Jul 2, 2003
- Director at GENERAL GROWTH PROPERTIES INC · on record since Jun 15, 2009
- See footnote (3). at CANADIAN PACIFIC RAILWAY LTD/CN · on record since Sep 7, 2016
- Director at Howard Hughes Corp · on record since Nov 12, 2010
- 10% owner at Howard Hughes Corp · on record since Nov 12, 2010
- 10% owner at FORTUNE BRANDS INC · on record since Oct 8, 2010
- 10% owner at J C PENNEY CO INC · on record since Oct 8, 2010
- Director at J C PENNEY CO INC · on record since May 24, 2011
- 10% owner at DENNYS CORP · on record since Oct 17, 2003
- Director at Seaport Entertainment Group Inc. · on record since Apr 23, 2026
- 10% owner at Seaport Entertainment Group Inc. · on record since Apr 23, 2026
- Director at Pershing Square SPARC Holdings, Ltd./DE · on record since Apr 23, 2026
- Chief Executive Officer at Pershing Square SPARC Holdings, Ltd./DE · on record since Apr 23, 2026
- 10% owner at Pershing Square SPARC Holdings, Ltd./DE · on record since Apr 23, 2026
- Director at Howard Hughes Holdings Inc. · on record since Apr 23, 2026
- 10% owner at Howard Hughes Holdings Inc. · on record since Apr 23, 2026
- Chief Executive Officer at Pershing Square USA, Ltd. · on record since Apr 28, 2026
- Director at PERSHING SQUARE INC. · on record since Apr 29, 2026
- CEO & Chairman at PERSHING SQUARE INC. · on record since Apr 29, 2026
- 10% owner at PERSHING SQUARE INC. · on record since Apr 29, 2026
- 10% owner at Beam Therapeutics Inc. · on record since May 24, 2012
- 10% owner at ITT EDUCATIONAL SERVICES INC · on record since Jan 24, 2014
- Director at CHIPOTLE MEXICAN GRILL INC · on record since Dec 19, 2016
- Director at ITT EDUCATIONAL SERVICES INC · on record since Oct 7, 2014
- Director at Zoetis Inc. · on record since Feb 4, 2015
- 10% owner at SIMON WORLDWIDE INC · on record since Oct 21, 2004
- Director at VALEANT PHARMACEUTICALS INTERNATIONAL · on record since Mar 16, 2016
- Director at CANADIAN PACIFIC RAILWAY LTD/CN · on record since Jan 4, 2016
- See footnote (4). at Zoetis Inc. · on record since May 12, 2016
- See footnote (3) at VALEANT PHARMACEUTICALS INTERNATIONAL · on record since May 3, 2017
- 10% owner at CHIPOTLE MEXICAN GRILL INC · on record since Mar 2, 2018
- See Remarks at ITT EDUCATIONAL SERVICES INC · on record since Feb 5, 2019
- Director at Pershing Square Tontine Holdings, Ltd. · on record since Jul 23, 2020
- Chief Executive Officer at Pershing Square Tontine Holdings, Ltd. · on record since Jul 23, 2020
- 10% owner at Pershing Square Tontine Holdings, Ltd. · on record since Jul 23, 2020
- See Remarks at CHIPOTLE MEXICAN GRILL INC · on record since May 18, 2022
Insider trading activity of ACKMAN WILLIAM A
- Transactions on record
- 153
- since Sep 22, 2003
- Open-market buys
- 61
- $1.3B
- Open-market sells
- 19
- $794.9M
- Companies traded
- 11
- last filing May 4, 2026
Figures computed from official regulatory filings — methodology.
Companies where ACKMAN WILLIAM A has traded
- PERSHING SQUARE INC.10 tx · $19M · May 4, 2026
- Pershing Square USA, Ltd.5 tx · $240.9M · May 1, 2026
- Pershing Square SPARC Holdings, Ltd./DE2 tx · Apr 23, 2026
- Howard Hughes Holdings Inc.18 tx · $49M · Nov 17, 2023
- Howard Hughes Corp73 tx · $1.2B · Jun 27, 2023
- CHIPOTLE MEXICAN GRILL INC13 tx · $695.3M · May 5, 2022
- ITT EDUCATIONAL SERVICES INC1 tx · $20.1M · Nov 14, 2016
- J C PENNEY CO INC16 tx · $100.1M · May 24, 2011
- GENERAL GROWTH PROPERTIES INC2 tx · Mar 10, 2010
Track record of ACKMAN WILLIAM A
Statistical track record
Free- Open-market buys
- 65
- Last buy
- Apr 30, 2026
Win rates and median returns are available with a free account (5 insiders/month).
Create a free account→Transaction history of ACKMAN WILLIAM A
Co-insiders of ACKMAN WILLIAM A
This page republishes public regulatory disclosures. Concerned by this data? Exercise your right to object →
8 tx · $6.3M · Oct 3, 2008
GOTHAM PARNERS III L PDENNYS CORP +3
| Company | Filed | Type | Qty | Price | Value · USD | Src |
|---|
| May 4, 2026 | Other | -6,874,237 | 0.00 USD | $0 | SEC |
| May 4, 2026 | AwardD | 92,878,204 | — | — | SEC |
| May 4, 2026 | Gift | -300,000 | 0.00 USD | $0 | SEC |
| May 4, 2026 | Buy | 81,762 | 22.61 USD | $1.8M | SEC |
| May 4, 2026 | Buy | 58,698 | 24.20 USD | $1.4M | SEC |
| May 4, 2026 | Buy | 659,540 | 23.88 USD | $15.7M | SEC |
| May 4, 2026 | Other | 700,000 | — | — | SEC |
| May 4, 2026 | Other | 168,200 | — | — | SEC |
| May 4, 2026 | Award | 10,489 | — | — | SEC |
| May 4, 2026 | Other | 4,240 | — | — | SEC |
| May 1, 2026 | Buy | 500,000 | 42.00 USD | $21M | SEC |
| May 1, 2026 | Buy | 21,200 | 50.00 USD | $1.1M | SEC |
| May 1, 2026 | Buy | 841,000 | 50.00 USD | $42.1M | SEC |
| May 1, 2026 | Buy | 34,971 | 50.00 USD | $1.7M | SEC |
| May 1, 2026 | Buy | 3,500,000 | 50.00 USD | $175M | SEC |
| Apr 23, 2026 | Other | 0 | — | — | SEC |
| Apr 23, 2026 | OtherD | 0 | — | — | SEC |
| Nov 17, 2023 | Buy | 67,200 | 74.34 USD | $5M | SEC |
| Nov 17, 2023 | Buy | 67,200 | 74.72 USD | $5M | SEC |
| Nov 17, 2023 | Buy | 67,200 | 73.95 USD | $5M | SEC |
| Oct 27, 2023 | Buy | 31,924 | 65.95 USD | $2.1M | SEC |
| Oct 27, 2023 | Buy | 24,946 | 66.94 USD | $1.7M | SEC |
| Oct 27, 2023 | Buy | 59,200 | 67.35 USD | $4M | SEC |
| Oct 24, 2023 | Buy | 50,041 | 66.91 USD | $3.3M | SEC |
| Oct 24, 2023 | Buy | 59,200 | 67.34 USD | $4M | SEC |