Ackman William A
- SEC CIK
- 0001056513
In the past year, 2 open-market purchase filings worth $259.9M and no sales.
Current role at each company
- PS Pershing Square Inc.CEO & Chairmanas of Aug 19, 2026
- HHH Howard Hughes Holdings Inc.Director, 10% Owneras of Jun 8, 2026
- PSUS Pershing Square USA, Ltd.Chief Executive Officeras of May 1, 2026
- Pershing Square SPARC Holdings, Ltd.Chief Executive Officeras of Apr 23, 2026
- SEG Seaport Entertainment Group Inc.Director, 10% Owneras of Apr 23, 2026
Show 2 more companies
- HHC Howard Hughes CorpDirector, 10% Owneras of Aug 18, 2023
- CMG Chipotle Mexican Grill IncOther: See Remarksas of May 18, 2022
Open-market trades in the past year
Open-market purchases (P) and sales (S) filed in the last 365 days, not counting derivative securities or duplicate filings. Values leave out price outliers.
- Bought
- $259.9M
- 2 filings
- Sold
- –
- 0 filings
- Net
- +$259.9M
- Bought minus sold
- Companies
- 2
- With open-market trades
Trades
Every Form 4 that lists Ackman William A as a reporting owner, including filings made jointly with others, grouped by company. Each row adds up one type of transaction in one filing. Only open-market purchases (P) and sales (S) are shown by default.
PS Pershing Square Inc.
CEO & Chairman1 trade
| Filed (ET) | Trade date | Filing delay | Insider | Transaction | Shares | Avg price | Value | Holding change | Flags |
|---|---|---|---|---|---|---|---|---|---|
| May 4, 2026 (view filing)8:39 PM ET | Apr 30 | 4 days | Ackman William A and 1 otherCEO & Chairman | PPurchase | +800.0K | $23.77 | +$19.0M | +114.3%1.50M after | 3 lots |
PSUS Pershing Square USA, Ltd.
Chief Executive Officer2 trades
| Filed (ET) | Trade date | Filing delay | Insider | Transaction | Shares | Avg price | Value | Holding change | Flags |
|---|---|---|---|---|---|---|---|---|---|
| May 1, 2026 (view filing) | Apr 30 | 1 day | Ackman William AChief Executive Officer | PPurchaseCommon Shares of Beneficial Interest | +4.00M | $49.00 | +$196.0M | New position4.00M after | 2 lots |
| May 1, 2026 (view filing) | Apr 30 | 1 day | Ackman William AChief Executive Officer | PPurchaseCommon Shares of Beneficial Interest | +897.2K | $50.00 | +$44.9M | New position56.2K after | 3 lots |
HHH Howard Hughes Holdings Inc.
Director, 10% Owner21 trades
| Filed (ET) | Trade date | Filing delay | Insider | Transaction | Shares | Avg price | Value | Holding change | Flags |
|---|---|---|---|---|---|---|---|---|---|
| Aug 22, 2023 (view filing)5:37 PM ET | Aug 16-18 | 6 daysLate | Ackman William A and 2 othersDirector, 10% Owner | PPurchaseCommon stock, par value $0.01 per share | +16.4K | $74.81 | +$1.22M | +0.1%16.6M after | 3 lots10b5-1 |
| Aug 23, 2023 (view filing)5:08 PM ET | Aug 21-22 | 2 days | Ackman William A and 2 othersDirector, 10% Owner | PPurchaseCommon stock, par value $0.01 per share | +2.30K | $74.92 | +$172.3K | 0.0%16.6M after | 2 lots10b5-1 |
| Sep 25, 2023 (view filing)5:04 PM ET | Sep 21-25 | 4 days | Ackman William A and 2 othersDirector, 10% Owner | PPurchaseCommon stock, par value $0.01 per share | +80.4K | $74.35 | +$5.98M | +0.5%16.7M after | 3 lots10b5-1 |
| Sep 28, 2023 (view filing)4:53 PM ET | Sep 26-28 | 2 days | Ackman William A and 2 othersDirector, 10% Owner | PPurchaseCommon stock, par value $0.01 per share | +98.8K | $73.84 | +$7.30M | +0.6%16.8M after | 3 lots10b5-1 |
| Oct 3, 2023 (view filing)4:30 PM ET | Sep 29-Oct 3 | 4 days | Ackman William A and 2 othersDirector, 10% Owner | PPurchaseCommon stock, par value $0.01 per share | +121.2K | $72.58 | +$8.80M | +0.7%16.9M after | 3 lots10b5-1 |
| Oct 6, 2023 (view filing)4:33 PM ET | Oct 4-6 | 2 days | Ackman William A and 2 othersDirector, 10% Owner | PPurchaseCommon stock, par value $0.01 per share | +117.8K | $69.74 | +$8.21M | +0.7%17.0M after | 3 lots10b5-1 |
| Oct 11, 2023 (view filing)4:53 PM ET | Oct 9-11 | 2 days | Ackman William A and 2 othersDirector, 10% Owner | PPurchaseCommon stock, par value $0.01 per share | +93.4K | $69.29 | +$6.47M | +0.5%17.1M after | 3 lots10b5-1 |
| Oct 16, 2023 (view filing)5:27 PM ET | Oct 12-16 | 4 days | Ackman William A and 2 othersDirector, 10% Owner | PPurchaseCommon stock, par value $0.01 per share | +116.5K | $68.33 | +$7.96M | +0.7%17.2M after | 3 lots10b5-1 |
| Oct 19, 2023 (view filing)4:56 PM ET | Oct 17-19 | 2 days | Ackman William A and 2 othersDirector, 10% Owner | PPurchaseCommon stock, par value $0.01 per share | +120.8K | $68.15 | +$8.23M | +0.7%17.3M after | 3 lots10b5-1 |
| Oct 24, 2023 (view filing)4:52 PM ET | Oct 20-24 | 4 days | Ackman William A and 2 othersDirector, 10% Owner | PPurchaseCommon stock, par value $0.01 per share | +132.3K | $67.11 | +$8.88M | +0.8%17.5M after | 3 lots10b5-1 |
HHC Howard Hughes Corp
Director, 10% Owner21 trades
| Filed (ET) | Trade date | Filing delay | Insider | Transaction | Shares | Avg price | Value | Holding change | Flags |
|---|---|---|---|---|---|---|---|---|---|
| Sep 8, 2021 (view filing)4:20 PM ET | Sep 3 | 5 days | Ackman William A and 2 othersDirector | PPurchaseCommon stock, par value $0.01 per share | +150.2K | $92.00 | +$13.8M | +1.1%13.6M after | |
| Nov 30, 2022 (view filing)8:57 PM ET | Nov 29 | 1 day | Ackman William A and 2 othersDirector, 10% Owner | PPurchaseCommon stock, par value $0.01 per share | +1.56M | $70.00 | +$109.2M | +11.5%15.2M after | 2 lots |
| Dec 7, 2022 (view filing)5:13 PM ET | Dec 5-7 | 2 days | Ackman William A and 2 othersDirector, 10% Owner | PPurchaseCommon stock, par value $0.01 per share | +657.2K | $75.26 | +$49.5M | +4.3%15.8M after | 3 lots |
| Dec 22, 2022 (view filing)4:43 PM ET | Dec 20-22 | 2 days | Ackman William A and 2 othersDirector, 10% Owner | PPurchaseCommon stock, par value $0.01 per share | +51.5K | $74.56 | +$3.84M | +0.3%15.9M after | 3 lots |
| Dec 30, 2022 (view filing)5:08 PM ET | Dec 28-29 | 2 days | Ackman William A and 2 othersDirector, 10% Owner | PPurchaseCommon stock, par value $0.01 per share | +6.15K | $74.66 | +$459.5K | 0.0%15.9M after | 2 lots |
| Mar 15, 2023 (view filing)4:46 PM ET | Mar 13-15 | 2 days | Ackman William A and 2 othersDirector, 10% Owner | PPurchaseCommon stock, par value $0.01 per share | +62.5K | $74.68 | +$4.67M | +0.4%16.0M after | 3 lots |
| Mar 20, 2023 (view filing)4:59 PM ET | Mar 16-17 | 4 days | Ackman William A and 2 othersDirector, 10% Owner | PPurchaseCommon stock, par value $0.01 per share | +3.05K | $74.95 | +$228.7K | 0.0%16.0M after | 2 lots |
| Mar 27, 2023 (view filing)5:29 PM ET | Mar 23-24 | 4 days | Ackman William A and 2 othersDirector, 10% Owner | PPurchaseCommon stock, par value $0.01 per share | +23.9K | $74.85 | +$1.79M | +0.1%16.0M after | 2 lots |
| Apr 12, 2023 (view filing)5:14 PM ET | Apr 10-12 | 2 days | Ackman William A and 2 othersDirector, 10% Owner | PPurchaseCommon stock, par value $0.01 per share | +17.9K | $74.95 | +$1.34M | +0.1%16.0M after | 2 lots10b5-1 |
| Apr 17, 2023 (view filing)4:44 PM ET | Apr 13-14 | 4 days | Ackman William A and 2 othersDirector, 10% Owner | PPurchaseCommon stock, par value $0.01 per share | +2.45K | $74.82 | +$183.5K | 0.0%16.0M after | 2 lots10b5-1 |
CMG Chipotle Mexican Grill Inc
Other: See Remarks3 trades
| Filed (ET) | Trade date | Filing delay | Insider | Transaction | Shares | Avg price | Value | Holding change | Flags |
|---|---|---|---|---|---|---|---|---|---|
| Jul 2, 2021 (view filing)4:05 PM ET | Jul 1 | 1 day | Ackman William A and 2 othersDirector | SSale | −12.6K | $1,533.84 | −$19.4M | −1.2%1.07M after | |
| Sep 8, 2021 (view filing)4:24 PM ET | Sep 3-7 | 5 days | Ackman William A and 2 othersDirector | PPurchase | +41.2K | $1,910.07 | +$78.7M | +3.8%1.11M after | 2 lots |
| May 5, 2022 (view filing)4:08 PM ET | May 3 | 2 days | Ackman William A and 2 othersDirector | SSale | −9.52K | $1,443.64 | −$13.7M | −0.9%1.11M after |