FORM 4
Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).
UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934 or Section 30(h) of the Investment Company Act of 1940
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(Print or Type Responses)
1. Name and Address of Reporting Person *
Stein Kevin M
  2. Issuer Name and Ticker or Trading Symbol
Perimeter Solutions, SA [PRM]
5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
__X__ Director _____ 10% Owner
_____ Officer (give title below) _____ Other (specify below)
(Last)
(First)
(Middle)
C/O PERIMETER SOLUTIONS, SA, 12E RUE GUILLAUME KROLL
3. Date of Earliest Transaction (Month/Day/Year)
11/08/2021
(Street)

LUXEMBOURG, N4 L-1882
4. If Amendment, Date Original Filed(Month/Day/Year)
6. Individual or Joint/Group Filing(Check Applicable Line)
_X_ Form filed by One Reporting Person
___ Form filed by More than One Reporting Person
(City)
(State)
(Zip)
Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1.Title of Security
(Instr. 3)
2. Transaction Date (Month/Day/Year) 2A. Deemed Execution Date, if any (Month/Day/Year) 3. Transaction Code
(Instr. 8)
4. Securities Acquired (A) or Disposed of (D)
(Instr. 3, 4 and 5)
5. Amount of Securities Beneficially Owned Following Reported Transaction(s)
(Instr. 3 and 4)
6. Ownership Form: Direct (D) or Indirect (I)
(Instr. 4)
7. Nature of Indirect Beneficial Ownership
(Instr. 4)
Code V Amount (A) or (D) Price
Ordinary Shares 11/08/2021   J   15,000 A (1) 15,000 I By: Trust (2)
Ordinary Shares 11/09/2021   P(3)   100,000 A $ 10 115,000 I By: Trust (2)

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
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Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security
(Instr. 3)
2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (Month/Day/Year) 3A. Deemed Execution Date, if any (Month/Day/Year) 4. Transaction Code
(Instr. 8)
5. Number of Derivative Securities Acquired (A) or Disposed of (D)
(Instr. 3, 4, and 5)
6. Date Exercisable and Expiration Date
(Month/Day/Year)
7. Title and Amount of Underlying Securities
(Instr. 3 and 4)
8. Price of Derivative Security
(Instr. 5)
9. Number of Derivative Securities Beneficially Owned Following Reported Transaction(s)
(Instr. 4)
10. Ownership Form of Derivative Security: Direct (D) or Indirect (I)
(Instr. 4)
11. Nature of Indirect Beneficial Ownership
(Instr. 4)
Code V (A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares

Reporting Owners

Reporting Owner Name / Address Relationships
 Director  10% Owner  Officer  Other
Stein Kevin M
C/O PERIMETER SOLUTIONS, SA
12E RUE GUILLAUME KROLL
LUXEMBOURG, N4 L-1882
  X      

Signatures

 /s/ Noriko Yokozuka, as Attorney-in-Fact   11/10/2021
**Signature of Reporting Person Date

Explanation of Responses:

* If the form is filed by more than one reporting person, see Instruction 4(b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
(1) Received in exchange for 15,000 ordinary shares of EverArc Holdings Limited ("EverArc") in connection with the consummation of the transactions contemplated by that certain Business Combination Agreement, dated as of June 15, 2021, by and among EverArc, Perimeter Solutions, SA, SK Invictus Holdings S.a r.l., SK Invictus Intermediate S.a r.l., and EverArc (BVI) Merger Sub Limited (the "Business Combination").
(2) The securities are held by The Kristen Stein 2021 Irrevocable Trust uad 9/22/2021 (the "Stein Trust"). The Reporting Person is the trustee of the Stein Trust and may be considered to have beneficial ownership of the ordinary shares of the Issuer held by the Stein Trust. The Reporting Person disclaims beneficial ownership of any shares in which he does not have a pecuniary interest.
(3) In connection with the Business Combination, the Reporting Person purchased 100,000 ordinary shares from the Issuer for $10.00 per share.

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