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Form 3 PERSHING SQUARE INC. For: Apr 29 Filed by: ACKMAN WILLIAM A

April 29, 2026 8:18 PM
FORM 3 UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940
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1. Name and Address of Reporting Person *
ACKMAN WILLIAM A

(Last) (First) (Middle)
C/O PERSHING SQUARE INC., 787
ELEVENTH AVENUE, 9TH FLOOR

(Street)
NEW YORK NY 10019

(City) (State) (Zip)
2. Date of Event Requiring Statement (Month/Day/Year)
04/29/2026
3. Issuer Name and Ticker or Trading Symbol
PERSHING SQUARE INC. [ PS ]
4. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
X Director X 10% Owner
X Officer (give title below) Other (specify below)
CEO & Chairman
5. If Amendment, Date of Original Filed (Month/Day/Year)
6. Individual or Joint/Group Filing (Check Applicable Line)
Form filed by One Reporting Person
X Form filed by More than One Reporting Person
Table I - Non-Derivative Securities Beneficially Owned
1. Title of Security (Instr. 4) 2. Amount of Securities Beneficially Owned (Instr. 4) 3. Ownership Form: Direct (D) or Indirect (I) (Instr. 5) 4. Nature of Indirect Beneficial Ownership (Instr. 5)
Common Stock 83,700,000
I
See footnote (1)
Common Stock 16,000,000
I
See footnote (2)
Common Stock 300,000
I
See footnote (3)
Table II - Derivative Securities Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 4) 2. Date Exercisable and Expiration Date (Month/Day/Year) 3. Title and Amount of Securities Underlying Derivative Security (Instr. 4) 4. Conversion or Exercise Price of Derivative Security 5. Ownership Form: Direct (D) or Indirect (I) (Instr. 5) 6. Nature of Indirect Beneficial Ownership (Instr. 5)
Date Exercisable Expiration Date Title Amount or Number of Shares
M Units of Pershing Square Partner Group, LLC (4) (5) (4) (5) Common Stock 92,430,722 (4) (5) I See footnote (1)
Explanation of Responses:
1. Reflects shares directly held by WAA Management LLC, of which the Reporting Person is the sole manager.
2. Reflects shares directly held a grantor retained annuity trust, of which the Reporting Person is the trustee.
3. Reflects shares directly held by a trust whose beneficiaries include the Reporting Person's family members. The Reporting Person may be deemed to be the beneficial owner of these shares for purposes of Rule 16a-1(a) under the Securities Exchange Act of 1934, as amended (the "Exchange Act"). The Reporting Person disclaims beneficial ownership of these shares, except to the extent of any pecuniary interest therein.
4. These M Units ("M Units") of Pershing Square Partner Group, LLC ("PSPG") were granted to the Reporting Person pursuant to an amendment of PSPG's governing document on a pro rata basis of the Reporting Person's prior interest in PSPG on April 28, 2026. These M Units are fully vested. The grant was approved by the board of directors of the Issuer in accordance with Rule 16b-3 under the Exchange Act.
5. Upon vesting, each M Unit may be redeemed by the holder, subject to certain conditions, for shares of Issuer common stock held by PSPG on a one-for-one basis, subject to certain adjustments pursuant to the terms approved by the board of directors of the Issuer. These redemption rights do not expire.
By: /s/ William A. Ackman 04/29/2026
** Signature of Reporting Person Date
By: WAA Management LLC, By: /s/ William A. Ackman, Manager 04/29/2026
** Signature of Reporting Person Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.

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