Haitham Khouri - 20 May 2026 Form 4 Insider Report for Perimeter Solutions, Inc. (PRM)

Reporting relationship: Chief Executive Officer, Director
Issuer ticker: PRM
Reported as of: 20 May 2026
Net transaction value: -$7,284,108
SEC form: 4
Accepted by SEC: 22 May 2026, 17:39:28 UTC
Prior SEC filing: 05 Mar 2026
Source filing: View source filing
Reporting owner signature: /s/ Noriko Yokozuka, as Attorney-in-Fact

Key filing fact

Haitham Khouri filed Form 4 for Perimeter Solutions, Inc. (PRM) on 22 May 2026.

Key facts

This page summarizes Haitham Khouri's Form 4 filing for Perimeter Solutions, Inc. (PRM).
3 reported transactions and 0 derivative rows are listed below.
Accepted by SEC: 22 May 2026, 17:39.

Change

Previous filing in this sequence was filed on 05 Mar 2026.
Current net transaction value: -$7,284,108.

Research use

This tells you what this filing adds before you inspect full transaction and derivative tables.
You can trace every row back to the original SEC filing document.

Evidence

Filed on Form 4

Ownership activity is grounded in SEC Form 4 disclosures.

View source filing

Reporting Owners (1)

CIK 0001892618 Primary reporting owner

Khouri Haitham

Relationship: Chief Executive Officer, Director
Address: C/O PERIMETER SOLUTIONS, INC., 8000 MARYLAND AVE., SUITE 350, CLAYTON
Signature: /s/ Noriko Yokozuka, as Attorney-in-Fact
Signature date: 22 May 2026

Reported non-derivative transactions

Shares, units, or other non-derivative securities reported in this filing.

PRM transaction

Common Stock

Sale

Transaction value: $692,027
Shares: -20,300
Change %: -0.96%
Price: $34.09
Shares after: 2,083,850
Date: 20 May 2026
Ownership: Direct
Footnotes: F1

PRM transaction

Common Stock

Sale

Transaction value: $2,926,913
Shares: -91,724
Change %: -4.4%
Price: $31.91
Shares after: 1,992,126
Date: 21 May 2026
Ownership: Direct
Footnotes: F2

PRM transaction

Common Stock

Sale

Transaction value: $3,665,168
Shares: -117,511
Change %: -5.9%
Price: $31.19
Shares after: 1,874,615
Date: 22 May 2026
Ownership: Direct
Footnotes: F3

^* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 3 footnotes

Footnote F1

Represents the weighted average price of the shares sold. The prices of the shares sold pursuant to the transaction ranged from approximately $34.00 to $34.28 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.

Footnote F2

Represents the weighted average price of the shares sold. The prices of the shares sold pursuant to the transaction ranged from approximately $31.32 to $33.18 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.

Footnote F3

Represents the weighted average price of the shares sold. The prices of the shares sold pursuant to the transaction ranged from approximately $30.54 to $31.61 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.