Insider Trading & Ownership of William A. Ackman

Location
New York, NY
Summary
The estimated net worth of William A. Ackman is at least $23,525,823 dollars as of 01 May 2026. William A. Ackman is the Director, 10%+ Owner of Howard Hughes Holdings Inc. and owns shares of Howard Hughes Holdings Inc. (HHH) stock worth about $21.57M. William A. Ackman is the Director, 10%+ Owner of Seaport Entertainment Group Inc. and owns shares of Seaport Entertainment Group Inc. (SEG) stock worth about $1.95M.
Signature
By: /s/ William A. Ackman
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Quick Takeaways

  • William A. Ackman has 5 issuer positions tracked on this page.
  • Estimated disclosed ownership value: $23,525,823.
  • Recent insider filing activity is available below.

What Changed

  • Largest disclosed position: Howard Hughes Holdings Inc. ($21,573,747).
  • Past-year value change for that position: .

Why This Matters

  • This page translates Forms 3/4/5 into a quick ownership context before you inspect each transaction row.
  • You can cross-check role, issuer, and filing chronology directly against the SEC source.

Source Evidence

Filed on Form 4

Insider ownership context is sourced from SEC Forms 3, 4, and 5.

See Original Filing

Ownership of William A. Ackman

Symbol Company Relationship Holdings Value Past Year Net Change Change % Report Period
HHH Howard Hughes Holdings Inc. Director, 10%+ Owner $21,573,747 21 Apr 2026
SEG Seaport Entertainment Group Inc. Director, 10%+ Owner $1,952,076 21 Apr 2026
PS PERSHING SQUARE INC. CEO & Chairman, Director, 10%+ Owner 29 Apr 2026
Pershing Square SPARC Holdings, Ltd./DE Chief Executive Officer, Director, 10%+ Owner 21 Apr 2026
PSUS Pershing Square USA, Ltd. Chief Executive Officer 30 Apr 2026

Insider Transactions Reported by William A. Ackman:

Sym Company Class Transaction % Value $ * Price $ Shares Shares After Date Ownership
* An asterisk sign (*) next to the price indicates that the price is likely invalid.
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