William A. Ackman

Insider Reports History

Identity Names, identifiers, and filing context for this profile. 1 identity field
Reporting-owner location
New York, NY
SEC source record Original filing metadata and source links for verification. 1 source field
Latest reporting-owner signature
By: /s/ William A. Ackman
Source: Latest parsed Forms 3/4/5 signature
Source evidence Original filing metadata and source links for verification. 1 source field
Transaction source note
Rows are grouped by transaction date from the original SEC filing. Open the aggregated insider activity page to review issuer-level activity across dates.

Reported holdings for William A. Ackman

Form 4 holding CEO & Chairman, Director, 10%+ Owner

PERSHING SQUARE INC.

Security class
M Units of Pershing Square Partner Group, LLC
Shares / value
92,878,204
Estimated value
Report date
28 Apr 2026
Price
Ownership
Indirect
Underlying class
Common Stock
Underlying amount
Form 4 holding CEO & Chairman, Director, 10%+ Owner

PERSHING SQUARE INC.

Security class
Common Stock
Shares / value
76,825,763
Estimated value
Report date
30 Apr 2026
Price
Ownership
Indirect
Form 4 holding Chief Executive Officer

Pershing Square USA, Ltd.

Security class
Common Shares of Beneficial Interest
Shares / value
4,000,000
Estimated value
Report date
30 Apr 2026
Price
Ownership
Direct
Form 4 holding Chief Executive Officer, Director, 10%+ Owner

Pershing Square SPARC Holdings, Ltd./DE

Security class
Forward Purchase Shares (Right to buy)
Shares / value
3,250,000
Estimated value
Report date
21 Apr 2026
Price
Ownership
Indirect
Underlying class
See footnote 8
Underlying amount
Form 4 holding CEO & Chairman, Director, 10%+ Owner

PERSHING SQUARE INC.

Security class
Common Stock
Shares / value
1,500,000
Estimated value
Report date
30 Apr 2026
Price
Ownership
Direct
Form 4 holding Chief Executive Officer, Director, 10%+ Owner

Pershing Square SPARC Holdings, Ltd./DE

Security class
Forward Purchase Shares
Shares / value
250,000
Estimated value
Report date
21 Apr 2026
Price
Ownership
Indirect
Underlying class
See footnote 6
Underlying amount
Form 4 holding Chief Executive Officer

Pershing Square USA, Ltd.

Security class
Common Shares of Beneficial Interest
Shares / value
56,171
Estimated value
Report date
30 Apr 2026
Price
Ownership
Indirect
Form 4 holding Chief Executive Officer, Director, 10%+ Owner

Pershing Square SPARC Holdings, Ltd./DE

Security class
Sponsor Warrants
Shares / value
$35,892,480
Estimated value
Report date
21 Apr 2026
Price
Ownership
Indirect
Underlying class
See footnote 10
Underlying amount

Insider Reports Filed by William A. Ackman

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