Perimeter Solutions, Inc. — Director's Dealing 2025

Dec 16, 2025

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: Perimeter Solutions, Inc. (PRM)
CIK: 0001880319
Period of Report: 2025-12-12

Reporting Person: Yokozuka Noriko (General Counsel)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2025-12-12	Common Stock	M	17500	$10	Acquired	64657	Direct
2025-12-12	Common Stock	M	120000	$10	Acquired	184657	Direct
2025-12-12	Common Stock	S	137500	$28.44	Disposed	47157	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2025-12-12	Stock Option (right to buy)	$10	M	17500	Disposed	2031-11-08	Common Stock (17500)	Direct
2025-12-12	Stock Option (right to buy)	$10	M	120000	Disposed	2031-11-08	Common Stock (120000)	Direct

Footnotes

F1: Represents the weighted average price of the shares sold. The prices of the shares sold pursuant to the transaction ranged from approximately $28.15 to $29.26 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.