Jeffrey Emery - 26 Feb 2026 Form 4 Insider Report for Perimeter Solutions, Inc. (PRM)

Role: President - Global Fire Safety
Signature: /s/ Noriko Yokozuka, as Attorney-in-Fact
Issuer symbol: PRM
Transactions as of: 26 Feb 2026
Net transactions value: $0
Form type: 4
Filing time: 02 Mar 2026, 17:29:46 UTC
Previous filing: 08 Sep 2025
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
Emery Jeffrey	President - Global Fire Safety	C/O PERIMETER SOLUTIONS, INC., 8000 MARYLAND AVE., SUITE 350, CLAYTON	/s/ Noriko Yokozuka, as Attorney-in-Fact	02 Mar 2026	0001926809

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Underlying Class	Amount	Exercise Price	Ownership	Footnotes
transaction	PRM	Stock Option (right to buy)	Award	$0	+200,000	+67%	$0.000000	500,000	26 Feb 2026	Common Stock	200,000	$8.36	Direct	F1

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	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.

Content

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.