Perimeter Solutions (PRM) CEO Haitham Khouri awarded 1.6M common shares in Form 4

Rhea-AI Filing Summary

Perimeter Solutions, Inc. director and Chief Executive Officer Haitham Khouri reported an equity award of company common stock. On the reported date, he acquired 1,600,317 shares of common stock at a stated price of $0.00 per share as a grant or award acquisition.

Following this exempt acquisition from the issuer pursuant to Rule 16b-3(d), his directly held common stock ownership increased to 2,104,150 shares. The footnote explains that the award is based on his membership interests in EverArc Founders, LLC.

SEC Form 4

FORM 4

UNITED 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

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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^*

Khouri Haitham

(Last) (First) (Middle)

C/O PERIMETER SOLUTIONS, INC.

8000 MARYLAND AVE., SUITE 350

(Street)

CLAYTON MO 63105

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
Perimeter Solutions, Inc. [ PRM ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

X	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	Chief Executive Officer

3. Date of Earliest Transaction (Month/Day/Year)
03/03/2026

4. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

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)
			Code	V	Amount	(A) or (D)	Price
Common Stock	03/03/2026		A(1)		1,600,317	A	$0	2,104,150	D

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)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

1. Represents an exempt acquisition from the issuer pursuant to Rule 16b-3(d) based on the Reporting Person's membership interests in EverArc Founders, LLC.

Remarks:

	/s/ Noriko Yokozuka, as Attorney-in-Fact	03/05/2026
	** 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).
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FAQ

What insider transaction did Perimeter Solutions (PRM) report for Haitham Khouri?

Perimeter Solutions reported that CEO and director Haitham Khouri received a grant of 1,600,317 shares of common stock. The award was recorded at a price of $0.00 per share and classified as an exempt acquisition from the issuer under Rule 16b-3(d).

How many Perimeter Solutions (PRM) shares does Haitham Khouri hold after this grant?

After the reported equity award, Haitham Khouri directly holds 2,104,150 shares of Perimeter Solutions common stock. This total reflects the newly granted 1,600,317 shares added to his prior direct holdings as disclosed in the Form 4 filing.

Was the Perimeter Solutions (PRM) insider transaction a purchase or an award?

The Perimeter Solutions transaction was an equity award, not an open-market purchase. It is coded as a grant or other acquisition at $0.00 per share and is treated as an exempt acquisition from the issuer under Rule 16b-3(d).

What does Rule 16b-3(d) treatment mean for the PRM Form 4 transaction?

The filing describes the transaction as an exempt acquisition from the issuer under Rule 16b-3(d. This indicates the share grant to Haitham Khouri is structured as an insider award, not a market trade, and is based on his membership interests in EverArc Founders, LLC.

How is EverArc Founders, LLC related to the Perimeter Solutions (PRM) share grant?

The footnote states that the reported acquisition is based on Haitham Khouri’s membership interests in EverArc Founders, LLC. This links the 1,600,317-share grant’s calculation or allocation to his interests in that LLC, while the shares themselves are common stock of Perimeter Solutions.