Perimeter Solutions (PRM) executive gains 200,000 performance-based stock options

Rhea-AI Filing Summary

Perimeter Solutions, Inc. reported that President - Global Fire Safety Jeffrey Emery acquired 200,000 stock options through vesting of a previously granted award. These options relate to a 1,000,000-share option granted on May 6, 2022, which vests in five equal annual installments tied to performance goals.

The company states that performance criteria for fiscal year 2025 were met, triggering vesting of 200,000 shares under this option. Following this vesting event, Emery now holds 500,000 stock options directly, reflecting accumulated vested portions of the original performance-based grant.

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^*

Emery Jeffrey

(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)
	President - Global Fire Safety

3. Date of Earliest Transaction (Month/Day/Year)
02/26/2026

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

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	02/26/2026		A		200,000(1)		02/26/2026	05/06/2032	Common Stock	200,000	$0	500,000	D

Explanation of Responses:

1. On May 6, 2022, the reporting person was granted an option to purchase 1,000,000 shares of common stock. The option vests in five equal annual installments based on the Issuer's satisfaction of certain performance criteria for each of the fiscal years ending December 31, 2022, 2023, 2024, 2025 and 2026. The performance criteria for 2025 were met, resulting in the vesting of the option as to 200,000 shares of common stock.

Remarks:

	/s/ Noriko Yokozuka, as Attorney-in-Fact	03/02/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
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FAQ

What insider transaction did Perimeter Solutions (PRM) report for Jeffrey Emery?

Perimeter Solutions reported that President - Global Fire Safety Jeffrey Emery acquired 200,000 stock options through vesting. These options are part of a 1,000,000-share performance-based grant originally awarded on May 6, 2022 and tied to annual performance goals.

Why did 200,000 Perimeter Solutions (PRM) stock options vest for Jeffrey Emery?

The 200,000 stock options vested because Perimeter Solutions met specified performance criteria for fiscal year 2025. The original 1,000,000-share option grant vests in five equal annual installments, each subject to the company satisfying set performance goals for that fiscal year.

How many Perimeter Solutions (PRM) stock options does Jeffrey Emery hold after this transaction?

After this vesting event, Jeffrey Emery holds 500,000 Perimeter Solutions stock options directly. This reflects the cumulative vested portion of his May 6, 2022 performance-based option grant as disclosed in the insider transaction report.

What are the terms of Jeffrey Emery’s 1,000,000-share option grant at Perimeter Solutions (PRM)?

Jeffrey Emery’s option grant covers 1,000,000 shares of Perimeter Solutions common stock and was granted on May 6, 2022. It vests in five equal annual installments, each contingent on the company meeting performance criteria for fiscal years 2022 through 2026.

Is Jeffrey Emery’s Perimeter Solutions (PRM) stock option grant performance-based?

Yes. The 1,000,000-share stock option grant to Jeffrey Emery is performance-based. Each of the five equal annual vesting tranches depends on Perimeter Solutions satisfying defined performance criteria for the corresponding fiscal year from 2022 to 2026.

What fiscal year performance triggered Jeffrey Emery’s latest Perimeter Solutions (PRM) option vesting?

The latest 200,000-share vesting for Jeffrey Emery was triggered by Perimeter Solutions meeting its performance criteria for fiscal year 2025. The company states that satisfying the 2025 goals caused this portion of the original option to vest.