Perimeter Solutions, Inc. — Director's Dealing 2025

May 20, 2025

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: Perimeter Solutions, Inc. (PRM)
CIK: 0001880319
Period of Report: 2025-05-16

Reporting Person: Raj Vivek (Director)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2025-05-16	Common Stock	S	100000	$11.74	Disposed	268942	Direct
2025-05-19	Common Stock	S	100000	$11.78	Disposed	168942	Direct
2025-05-20	Common Stock	S	68810	$11.84	Disposed	100132	Direct

Holdings (Derivative)

Security	Exercise Price	Expiration	Underlying	Shares	Ownership
Stock Option (right to buy)	$11.80	2031-12-07	Common Stock (5250)	5250	Direct
Stock Option (right to buy)	$12.09	2032-01-28	Common Stock (21000)	21000	Direct
Stock Option (right to buy)	$8.88	2033-02-15	Common Stock (14000)	14000	Direct
Stock Option (right to buy)	$5.23	2034-02-14	Common Stock (7000)	7000	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 $11.57 to $11.96 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.

F2: Represents the weighted average price of the shares sold. The prices of the shares sold pursuant to the transaction ranged from approximately $11.71 to $11.89 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.

F3: Represents the weighted average price of the shares sold. The prices of the shares sold pursuant to the transaction ranged from approximately $11.80 to $11.91 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.

F4: On December 7, 2021, the reporting person was granted an option to purchase 8,750 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 2024 were met, resulting in the vesting of the option as to 5,250 shares of common stock.

F5: On January 28, 2022, the reporting person was granted an option to purchase 35,000 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 2024 were met, resulting in the vesting of the option as to 21,000 shares of common stock.

F6: On February 15, 2023, the reporting person was granted an option to purchase 35,000 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, 2023, 2024, 2025, 2026 and 2027. The performance criteria for 2024 were met, resulting in the vesting of the option as to 14,000 shares of common stock.

F7: On February 14, 2024, the reporting person was granted an option to purchase 35,000 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, 2024, 2025, 2026, 2027 and 2028. The performance criteria for 2024 were met, resulting in the vesting of the option as to 7,000 shares of common stock.