STOCK TITAN

Pershing Square (PS) records major M Unit grants and issuer share return

Filing Impact
(Neutral)
Filing Sentiment
(Neutral)
Form Type
4

Rhea-AI Filing Summary

Pershing Square Partner Group LLC, a major holder of PERSHING SQUARE INC. common stock, recorded internal equity adjustments linked to a larger capital transaction. On April 30, 2026, it disposed of 13,603,657 common shares to the issuer at $0.00 per share as a “disposition to issuer,” leaving 184,289,699 common shares reported as held afterward, in line with a purchase price adjustment arrangement tied to combined public offerings and private placements.

Separately, on April 28, 2026, Pershing Square Partner Group LLC reported 197,893,356 derivative “M Units of PSPG (Obligation to Deliver)” linked to 184,289,699 underlying common shares. These M Units were granted to issuer personnel, including named executive officers, on a pro rata basis and are generally subject to a long-term vesting schedule. Once vested, each M Unit can be redeemed for one share of issuer common stock held by PSPG, with redemption rights that do not expire.

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Insider Pershing Square Partner Group LLC
Role null
Type Security Shares Price Value
Disposition Common Stock 13,603,657 $0.00 --
Other M Units of PSPG (Obligation to Deliver) 197,893,356 $0.00 --
Holdings After Transaction: Common Stock — 184,289,699 shares (Direct, null); M Units of PSPG (Obligation to Deliver) — 197,893,356 shares (Direct, null)
Footnotes (1)
  1. On April 30, 2026, the Issuer and Pershing Square USA, Ltd. ("PSUS") completed a combined transaction, consisting of (i) an initial public offering and a concurrent private placement (the "PS Private Placement") of Issuer common stock and (ii) an initial public offering and a concurrent private placement (the "PSUS Private Placement" and together with the PS Private Placement, the "combined private placement") of PSUS's Common Shares of Beneficial Interest (collectively, the "combined transaction"). 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, PSPG and other parties thereto 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. These M Units ("M Units") of Pershing Square Partner Group, LLC ("PSPG") were granted on April 28, 2026 to the applicable personnel of the Issuer, including its named executive officers, pursuant to an amendment of PSPG's governing document on a pro rata basis of each recipient's prior interest in PSPG. 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 (the "Exchange Act"). The M Units held by William A. Ackman are fully vested and not subject to vesting or forfeiture, and the M Units of each other holder are 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. One holder has a condensed vesting schedule, which follows the aforementioned schedules for years 1 to 4, except all remaining unvested M Units vested at the end of year 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. 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.
Disposition to issuer 13,603,657 shares Common Stock returned to issuer on April 30, 2026 at $0.00
Shares held after disposition 184,289,699 shares Common Stock reported following the April 30, 2026 transaction
M Units granted/held 197,893,356 M Units Derivative M Units of PSPG reported as of April 28, 2026
Underlying common shares 184,289,699 shares Underlying PERSHING SQUARE INC. common stock linked to M Units
Standard vesting 1–4 years 6.25% per year Standard M Unit vesting rate in years 1 through 4
Standard vesting 5–7 years 8.33% per year Standard M Unit vesting rate in years 5 through 7
Standard vesting 8–10 years 16.67% per year Standard M Unit vesting rate in years 8 through 10
M Units financial
"These M Units ("M Units") of Pershing Square Partner Group, LLC ("PSPG") were granted"
Amended and Restated Purchase Price Adjustment Agreement financial
"Pursuant to the Amended and Restated Purchase Price Adjustment Agreement (the "A&R Purchase Price Adjustment Agreement")"
Purchase Price Adjustment Contribution financial
"Each party's contribution ("Purchase Price Adjustment Contribution") corresponds to such party's pro rata share"
Rule 16b-3 regulatory
"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"
Rule 16b-3 is a Securities and Exchange Commission regulation that exempts certain routine, pre-approved transactions by company insiders from automatic liability for short-term trading profits. It acts like a safe harbor: if an insider follows a formal plan or the board approves specific transactions in advance, profits from buying and selling company stock within six months are not automatically reclaimed. Investors care because the rule clarifies when insider trades are permissible and reduces uncertainty about potential clawbacks.
combined private placement financial
"the PSUS Private Placement and together with the PS Private Placement, the "combined private placement""
Common Shares of Beneficial Interest financial
"initial public offering and a concurrent private placement (the "PSUS Private Placement") of PSUS's Common Shares of Beneficial Interest"
Common Shares of Beneficial Interest are units that represent ownership in a company or organization, like owning a piece of a pie. They give investors voting rights and a chance to share in profits, making them important for those looking to invest and have a say in how the organization is run.
SEC Form 4
FORM 4UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940
OMB APPROVAL
OMB Number:3235-0287
Estimated average burden
hours per response:0.5
Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).
Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.
1. Name and Address of Reporting Person*
Pershing Square Partner Group LLC

(Last)(First)(Middle)
787 ELEVENTH AVENUE
9TH FLOOR

(Street)
NEW YORK NEW YORK 10019

(City)(State)(Zip)

UNITED STATES

(Country)
2. Issuer Name and Ticker or Trading Symbol
PERSHING SQUARE INC. [ PS ]
5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
XDirectorX10% Owner
Officer (give title below)Other (specify below)
2a. Foreign Trading Symbol
3. Date of Earliest Transaction (Month/Day/Year)
04/28/2026
6. Individual or Joint/Group Filing (Check Applicable Line)
XForm filed by One Reporting Person
Form filed by More than One Reporting Person
4. If Amendment, Date of Original Filed (Month/Day/Year)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3) 2. Transaction Date (Month/Day/Year)2A. Deemed Execution Date, if any (Month/Day/Year)3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4)
CodeVAmount(A) or (D)Price
Common Stock04/30/2026D(1)(2)13,603,657D$0184,289,699D
Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3) 2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (Month/Day/Year)3A. Deemed Execution Date, if any (Month/Day/Year)4. Transaction Code (Instr. 8) 5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 6. Date Exercisable and Expiration Date (Month/Day/Year)7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4) 8. Price of Derivative Security (Instr. 5) 9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4) 10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 11. Nature of Indirect Beneficial Ownership (Instr. 4)
CodeV(A)(D)Date ExercisableExpiration DateTitleAmount or Number of Shares
M Units of PSPG (Obligation to Deliver)(3)(4)(5)(6)04/28/2026J197,893,356 (3)(4)(5)(6) (3)(4)(5)(6)Common Stock184,289,699(3)(4)(5)(6)197,893,356D
Explanation of Responses:
1. On April 30, 2026, the Issuer and Pershing Square USA, Ltd. ("PSUS") completed a combined transaction, consisting of (i) an initial public offering and a concurrent private placement (the "PS Private Placement") of Issuer common stock and (ii) an initial public offering and a concurrent private placement (the "PSUS Private Placement" and together with the PS Private Placement, the "combined private placement") of PSUS's Common Shares of Beneficial Interest (collectively, the "combined transaction").
2. 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, PSPG and other parties thereto 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.
3. These M Units ("M Units") of Pershing Square Partner Group, LLC ("PSPG") were granted on April 28, 2026 to the applicable personnel of the Issuer, including its named executive officers, pursuant to an amendment of PSPG's governing document on a pro rata basis of each recipient's prior interest in PSPG. 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 (the "Exchange Act").
4. The M Units held by William A. Ackman are fully vested and not subject to vesting or forfeiture, and the M Units of each other holder are 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. One holder has a condensed vesting schedule, which follows the aforementioned schedules for years 1 to 4, except all remaining unvested M Units vested at the end of year 5.
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.
6. 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.
Remarks:
William A. Ackman, Ryan Israel, Ben Hakim, and Halit Coussin, each a member of the board of directors of the Issuer, are members of each of PSPG and Pershing Square Management, LLC, managing member of PSPG that holds majority voting power over Issuer common stock. As a result, PSPG is a director by deputization for purposes of Section 16 of the Exchange Act.
PERSHING SQUARE PARTNER GROUP, LLC, By: PERSHING SQUARE MANAGEMENT, LLC, its Managing Member, By: /s/ William A. Ackman, Member and Chief Executive Officer05/04/2026
** Signature of Reporting PersonDate
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.
* Form 4: SEC 1474 (03-26)

FAQ

What insider transactions did Pershing Square Partner Group LLC report for PS?

Pershing Square Partner Group LLC reported returning 13,603,657 PS common shares to the issuer and holding 197,893,356 M Units tied to 184,289,699 underlying common shares, reflecting internal equity and purchase price adjustment arrangements rather than open-market buying or selling.

How many PERSHING SQUARE INC. shares did Pershing Square Partner Group LLC hold after the Form 4 transaction?

After the disposition to the issuer, Pershing Square Partner Group LLC reported ownership of 184,289,699 PERSHING SQUARE INC. common shares. This figure comes directly from the post-transaction holding line in the Form 4’s non-derivative transaction table.

What are the M Units of PSPG reported in the Pershing Square (PS) Form 4?

The M Units of PSPG are derivative interests that can be redeemed, once vested and subject to conditions, for shares of PERSHING SQUARE INC. common stock held by PSPG on a one-for-one basis, with redemption rights that do not expire under the described terms.

Who received the M Units linked to PERSHING SQUARE INC. stock?

The M Units were granted to applicable personnel of PERSHING SQUARE INC., including named executive officers, on a pro rata basis according to each person’s prior interest in Pershing Square Partner Group LLC, and were approved by the board of directors under Exchange Act Rule 16b-3.

How is the M Unit redemption amount for PS shares adjusted?

The filing explains that the number of PERSHING SQUARE INC. shares for which each M Unit may be redeemed is adjusted on a pro rata basis under Pershing Square Partner Group LLC’s governing document, reflecting its Purchase Price Adjustment Contribution in connection with the combined transaction.