Insiders / Ackman William a
Ackman William a
CIK 1056513personinsider
Companies
5
First seen
Apr 23, 2026
Last activity
Jun 8, 2026
Companies
| Company | Shares held | Latest |
|---|---|---|
| Pershing Square Inc. · PS | 78,640,492 | — |
| Pershing Square USA, Ltd. · PSUS | 4,056,171 | — |
| Pershing Square SPARC Holdings, Ltd./DE | 422,533 | — |
| Howard Hughes Holdings Inc. · HHH | — | — |
| Seaport Entertainment Group Inc. · SEG | — | — |
All securities held
4 positions · latest reported per filing
| Company | Security | Shares |
|---|---|---|
| Pershing Square Inc. | Common Stock | 78,640,492 |
| Pershing Square Inc. | M Units of Pershing Square Partner Group, LLCDerivative | 92,878,204 |
| Pershing Square SPARC Holdings, Ltd./DE | Common Stock | 422,533 |
| Pershing Square USA, Ltd. | Common Shares of Beneficial Interest | 4,056,171 |
Activity
InsidersInstitutions
This person's insider trades (Form 4), across every company.| Date | Action | Company | Value | Shares Δ | Position after | Impact |
|---|---|---|---|---|---|---|
| Apr 30, 2026 | Buy | PSUS Pershing Square USA, Ltd. Common Shares of Beneficial Interest | $175.00M | +3.5M | 3,500,000 | high |
| Apr 30, 2026 | Buy | PSUS Pershing Square USA, Ltd. Common Shares of Beneficial Interest | $42.05M | +841K | 841,000 | high |
| Apr 30, 2026 | Buy | PSUS Pershing Square USA, Ltd. Common Shares of Beneficial Interest | $21.00M | +500K +14.29% | 4,000,000 | high |
| Apr 30, 2026 | Buy | PS Pershing Square Inc. Common Stock | $15.75M | +660K +84.37% | 1,441,302 0.36% of shares | high |
| Apr 30, 2026 | Buy | PS Pershing Square Inc. Common Stock | $1.85M | +82K +11.68% | 781,762 0.20% of shares | high |
| Apr 30, 2026 | Buy | PSUS Pershing Square USA, Ltd. Common Shares of Beneficial Interest | $1.75M | +35K +164.96% | 56,171 | high |
| Apr 30, 2026 | Buy | PS Pershing Square Inc. Common Stock | $1.42M | +59K +4.07% | 1,500,000 0.38% of shares | high |
| Apr 30, 2026 | Buy | PSUS Pershing Square USA, Ltd. Common Shares of Beneficial Interest | $1.06M | +21K | 21,200 | high |
| Apr 30, 2026 | Other | PS Pershing Square Inc. Common Stock | $0 | -6.9M -8.21% | 76,825,763 19.21% of shares | low |
| Apr 28, 2026 | Gift | PS Pershing Square Inc. Common Stock | $0 | -300K -0.36% | 83,700,000 20.93% of shares | low |