Halit Coussin - 28 Apr 2026 Form 4 Insider Report for PERSHING SQUARE INC. (PS)

Reporting relationship: CLO; CCO, Director
Issuer ticker: PS
Reported as of: 28 Apr 2026
Net transaction value: $0
SEC form: 4
Accepted by SEC: 04 May 2026, 20:53:01 UTC
Next SEC filing: 29 Apr 2026
Source filing: View source filing
Reporting owner signature: By: /s/ Halit Coussin

Key filing fact

Halit Coussin filed Form 4 for PERSHING SQUARE INC. (PS) on 04 May 2026.

Key facts

This page summarizes Halit Coussin's Form 4 filing for PERSHING SQUARE INC. (PS).
3 reported transactions and 1 derivative row are listed below.
Accepted by SEC: 04 May 2026, 20:53.

Change

No earlier filing in this sequence is available for direct comparison.
Current net transaction value: $0.

Research use

This tells you what this filing adds before you inspect full transaction and derivative tables.
You can trace every row back to the original SEC filing document.

Evidence

Filed on Form 4

Ownership activity is grounded in SEC Form 4 disclosures.

View source filing

Reporting Owners (1)

CIK 0002026110 Primary reporting owner

Coussin Halit

Relationship: CLO; CCO, Director
Address: C/O PERSHING SQUARE INC.,, 787 ELEVENTH AVENUE, 9TH FLOOR, NEW YORK
Signature: By: /s/ Halit Coussin
Signature date: 04 May 2026

Reported non-derivative transactions

Shares, units, or other non-derivative securities reported in this filing.

PS transaction

Common Stock

Disposed to Issuer

Transaction value
Shares: -197,771
Change %: -6.9%
Price: $0.000000^*
Shares after: 2,679,219
Date: 30 Apr 2026
Ownership: Direct
Footnotes: F1, F2

PS transaction

Common Stock

Other

Transaction value
Shares: +40,000
Change %: +1.5%
Price
Shares after: 2,719,219
Date: 30 Apr 2026
Ownership: Direct
Footnotes: F1, F3

Reported derivative securities

Options, warrants, convertible securities, or similar derivative positions disclosed in the filing.

PS transaction Derivative

M Units of Pershing Square Partner Group, LLC

Award

Transaction value
Shares: +6,984,161
Change %
Price
Shares after: 6,984,161
Date: 28 Apr 2026
Ownership: Direct
Underlying class: Common Stock
Underlying amount: 6,504,053
Exercise price
Footnotes: F4, F5, F6

^* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 6 footnotes

Footnote F1

On April 30, 2026, the Issuer and Pershing Square USA, Ltd. ("PSUS") completed a combined transaction, consisting of (i) an initial public offering (the "PS IPO") and a concurrent private placement of Issuer common stock and (ii) an initial public offering (the "PSUS IPO" and together with the PS IPO, the "combined IPO") and a concurrent private placement of PSUS's Common Shares of Beneficial Interest ("PSUS Common Shares") (collectively, the "combined transaction").

Footnote F2

Pursuant to the Amended and Restated Purchase Price Adjustment Agreement (the "A&R Purchase Price Adjustment Agreement") by and among the Issuer, Pershing Square Partner Group, LLC ("PSPG") and the other parties thereto (including the Reporting Person), PSPG and other parties thereto (including the Reporting Person) contributed Issuer common stock to the Issuer in an aggregate amount equal to the number of shares of Issuer common stock issued in connection with the combined transaction. Each party's contribution ("Purchase Price Adjustment Contribution") corresponds to such party's pro rata share of the aggregate number of shares of Issuer common stock held by the parties as of immediately prior to the completion of the combined transaction.

Footnote F3

Reflects the acquisition of Issuer common stock in connection with the combined IPO. In connection with the PS IPO, each initial investor acquired 1 share of Issuer common stock for no additional consideration for every 5 PSUS Common Shares that the investor purchased in the PSUS IPO.

Footnote F4

These M Units ("M Units") of 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. The M Units are unvested and subject to vesting and forfeiture. The standard vesting schedule for M Units provides for vesting (i) 6.25% each year during years 1 to 4, (ii) 8.33% each year during years 5 to 7, and (iii) 16.67% each year during years 8 to 10. The grant was approved by the board of directors of the Issuer in accordance with Rule 16b-3 under the Securities Exchange Act of 1934, as amended.

Footnote F5

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.

Footnote F6

Reflects the pro rata adjustment, pursuant to PSPG's governing document in connection with its Purchase Price Adjustment Contribution, of the number of shares of Issuer common stock for which each M unit may be redeemed.