Perimeter Solutions (NYSE: PRM) CFO reports 100K share sale, option exercise

Rhea-AI Filing Summary

Perimeter Solutions, Inc. reported an insider stock transaction by its chief financial officer. On 12/12/2025, the CFO exercised 100,000 stock options with an exercise price of $8.36 per share, acquiring the same number of common shares. That same day, the CFO sold 100,000 shares of common stock at a weighted average price of $28.47 per share, with individual sale prices ranging from approximately $28.16 to $29.44 per share. After these transactions, the CFO reported direct beneficial ownership of 0 shares of common stock and 200,000 stock options with a $8.36 exercise price expiring on 05/06/2032.

Insider Trade Summary

Net Seller: 100,000 shares ($2,847,000)

Net Sell 3 txns

Insider Sable Kyle

Role Chief Financial Officer

Sold 100,000 shs ($2.85M)

Type	Security	Shares	Price	Value
Exercise	Stock Option (right to buy)	100,000	$0.00	--
Exercise	Common Stock	100,000	$8.36	$836K
Sale	Common Stock	100,000	$28.47	$2.85M

Holdings After Transaction: Stock Option (right to buy) — 200,000 shares (Direct); Common Stock — 100,000 shares (Direct)

Footnotes (1)

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Form 4 Insider Transactions: What Each Field Means →

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^*

Sable Kyle

(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)

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

3. Date of Earliest Transaction (Month/Day/Year)
12/12/2025

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	12/12/2025		M		100,000	A	$8.36	100,000	D
Common Stock	12/12/2025		S		100,000	D	$28.47(1)	0	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
Stock Option (right to buy)	$8.36	12/12/2025		M			100,000	02/20/2025	05/06/2032	Common Stock	100,000	$0	200,000	D

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 $28.16 to $29.44 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	12/16/2025
	** 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 insider transaction did Perimeter Solutions (PRM) disclose?

Perimeter Solutions disclosed that its chief financial officer exercised 100,000 stock options at an exercise price of $8.36 per share on 12/12/2025, acquiring 100,000 common shares, and then sold 100,000 shares of common stock at a weighted average price of $28.47 per share the same day.

Who is the reporting person in this Perimeter Solutions (PRM) insider transaction?

The reporting person is an officer of Perimeter Solutions, Inc., serving as the company's Chief Financial Officer.

How many Perimeter Solutions (PRM) shares did the CFO own after the reported transaction?

Following the reported transaction on 12/12/2025, the chief financial officer reported direct beneficial ownership of 0 shares of Perimeter Solutions common stock.

What stock options does the Perimeter Solutions (PRM) CFO still hold after this filing?

After the transaction, the chief financial officer beneficially owned 200,000 stock options with an exercise price of $8.36 per share, which are shown with an expiration date of 05/06/2032.

At what prices were Perimeter Solutions (PRM) shares sold in this insider trade?

The shares were sold at a weighted average price of $28.47 per share. The filing notes that individual sale prices ranged from approximately $28.16 to $29.44 per share.

Is this Perimeter Solutions (PRM) insider trade reported as an individual filing or a joint filing?

The report indicates that it is a Form filed by one reporting person, not a joint or group filing.