Perimeter Solutions, Inc. — Director's Dealing 2025

Sep 8, 2025

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: Perimeter Solutions, Inc. (PRM)
CIK: 0001880319
Period of Report: 2025-09-04

Reporting Person: Emery Jeffrey (President - Global Fire Safety)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2025-09-04	Common Stock	M	300000	$8.36	Acquired	300000	Direct
2025-09-04	Common Stock	S	300000	$22.28	Disposed	0	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2025-09-04	Stock Option (right to buy)	$8.36	M	300000	Disposed	2032-05-06	Common Stock (300000)	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 $21.96 to $22.88 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.