[Form 4] Perimeter Solutions, Inc. Insider Trading Activity

Rhea-AI Filing Summary

Raj Vivek, a director of Perimeter Solutions, Inc. (PRM), reported a sale of common stock on 09/11/2025. The Form 4 shows he disposed of 25,000 shares at a weighted average price of $22.45 per share, with executed prices ranging from approximately $22.28 to $22.58. After the reported transaction, the filing states he beneficially owned 121,701 shares. The Form 4 was signed by an attorney-in-fact on 09/15/2025. The filer checked the box indicating the form was filed by one reporting person and identified the relationship as Director. The filing includes an offer to provide detailed breakdowns of shares sold at each price upon request.

Positive

• None.

Negative

• Director disposed of 25,000 shares, reducing beneficial holdings to 121,701 shares following the sale

Insights

Financial Analyst

TL;DR Insider sale of 25,000 PRM shares at ~$22.45 appears routine and not clearly material to company fundamentals.

The reporting shows a single non-derivative disposition by a director on 09/11/2025 for 25,000 common shares at a weighted average price of $22.45. Post-transaction beneficial ownership is 121,701 shares. There is no disclosure of directed proceeds use, insider plan (e.g., Rule 10b5-1), or additional transactions that would indicate sustained selling. On its face this is a standard Schedule 16 disclosure of insider liquidity rather than a corporate event affecting operations or financial guidance.

Corporate Governance Expert

TL;DR Director reported a routine sale; disclosure complies with Section 16 timing and includes price range clarification.

The Form 4 identifies the reporting person as a director and provides the required detail: transaction date, number of shares sold, weighted average price, and shares owned following the sale. The explanation clarifies the price range and offers to supply per-price quantities if requested, which supports transparency. There is no indication of related-party transactions, changes in board status, or other governance actions in this filing.

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

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^*

Raj Vivek

(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
	Officer (give title below)		Other (specify below)

3. Date of Earliest Transaction (Month/Day/Year)
09/11/2025

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	09/11/2025		S		25,000	D	$22.45(1)	121,701	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 the weighted average price of the shares sold. The prices of the shares sold pursuant to the transaction ranged from approximately $22.28 to $22.58 per share. The Reporting Person, upon request, will provide the Securities and Exchange Commission staff, the issuer or a security holder of the issuer full information regarding the number of shares sold at each separate price.

Remarks:

	/s/ Noriko Yokozuka, as Attorney-in-Fact	09/15/2025
	** 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.

FAQ

What did Raj Vivek report on the Form 4 for PRM?

He reported a sale of 25,000 common shares on 09/11/2025 at a weighted average price of $22.45, with prices ranging $22.28 to $22.58.

How many PRM shares does the reporting person own after the transaction?

121,701 shares beneficially owned following the reported disposition.

When was the Form 4 signed and by whom?

Signed 09/15/2025 by Noriko Yokozuka as Attorney-in-Fact for the reporting person.

Does the filing indicate the sale was executed under a trading plan (Rule 10b5-1)?

The filing does not indicate that the transaction was made pursuant to a Rule 10b5-1 plan; no such box is checked in the provided content.

What price range did the shares sell at in the reported transaction?

Approximately $22.28 to $22.58 per share; the weighted average price reported is $22.45.