William N. Thorndike Jr. - 09 Mar 2026 Form 4 Insider Report for Perimeter Solutions, Inc. (PRM)

Role
Director
Signature
/s/ Noriko Yokozuka, as Attorney-in-Fact
Issuer symbol
PRM
Transactions as of
09 Mar 2026
Net transactions value
-$7,601,921
Form type
4
Filing time
11 Mar 2026, 19:19:17 UTC
Previous filing
06 Mar 2026
SEC
View on sec.gov

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
Thorndike William N Jr Director C/O PERIMETER SOLUTIONS, INC., 8000 MARYLAND AVE., SUITE 350, CLAYTON /s/ Noriko Yokozuka, as Attorney-in-Fact 11 Mar 2026 0001437827

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction PRM Common Stock Sale $2,087,197 -90,043 -1% $23.18 8,770,613 09 Mar 2026 Direct F1
transaction PRM Common Stock Sale $833,724 -34,957 -0.4% $23.85 8,735,656 09 Mar 2026 Direct F2
transaction PRM Common Stock Sale $2,363,000 -100,000 -1.1% $23.63 8,635,656 10 Mar 2026 Direct F3
transaction PRM Common Stock Sale $2,318,000 -100,000 -1.2% $23.18 8,535,656 11 Mar 2026 Direct F4
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 Represents the weighted average price of the shares sold on March 9, 2026. The prices of the shares sold pursuant to the transaction ranged from approximately $22.71 to $23.71 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 on March 9, 2026. The prices of the shares sold pursuant to the transaction ranged from approximately $23.73 to $23.95 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 on March 10, 2026. The prices of the shares sold pursuant to the transaction ranged from approximately $23.33 to $23.97 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 Represents the weighted average price of the shares sold on March 11, 2026. The prices of the shares sold pursuant to the transaction ranged from approximately $22.72 to $23.40 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.