PRM affiliate files Form 144 to sell 125,000 shares

William Thorndike submitted a Section 144 notice relating to proposed sales of Common stock of PRM.

Accepted by SEC EDGAR 03/05/2026 - 01:38 PM EST Learn about SEC filing dates

Rhea-AI Filing Summary

William Thorndike submitted a Section 144 notice relating to proposed sales of Common stock of PRM. The filing shows a proposed sale of 125,000 shares dated 03/04/2026 and references an additional listed block of 667,536 shares tied to 02/15/2025 under "Securities To Be Sold." The broker listed is UBS Financial Services Inc.

Insights

Securities Attorney

Notice documents an affiliate's proposed sale of PRM common shares, with explicit quantities and dates.

The filing lists a proposed sale of 125,000 shares with a transaction date of 03/04/2026 and a separate entry showing 667,536 shares associated with 02/15/2025. The notice names UBS Financial Services Inc as the broker-dealer on the cover.

These notices are procedural disclosures under Section 144; the timing and execution of any sale depend on market and regulatory conditions. Subsequent filings or confirmations would show executed transactions and any change in beneficial ownership.

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What does PRM's Form 144 filed by William Thorndike indicate?

The Form 144 indicates a proposed sale of 125,000 shares of PRM with a stated date of 03/04/2026. It also references 667,536 shares tied to 02/15/2025, and lists UBS Financial Services Inc as the broker.

Does the Form 144 confirm that PRM shares were sold?

No. The Form 144 is a notice of a proposed sale under Section 144; it does not confirm execution. Confirmation of actual sales would appear in subsequent transaction reports or broker confirmations.

Who is the broker-dealer handling the proposed PRM sale on Form 144?

The filing lists UBS Financial Services Inc at 1000 Harbor Blvd, Weehawken, NJ, as the broker-dealer associated with the securities disclosure in the Form 144 excerpt.

What holdings are shown alongside the proposed sale in the Form 144 excerpt?

The excerpt shows a proposed sale of 125,000 shares and an additional listed amount of 667,536 shares tied to 02/15/2025. The filing format also includes a figure of 3,025,666 in one row, likely a related ownership or context number.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Form 144 Filer Information	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 144 NOTICE OF PROPOSED SALE OF SECURITIES PURSUANT TO RULE 144 UNDER THE SECURITIES ACT OF 1933
FORM 144

144: Filer Information

Filer CIK	0001437827
Filer CCC	XXXXXXXX
Is this a LIVE or TEST Filing?	LIVE TEST
Submission Contact Information
Name
Phone
E-Mail Address

144: Issuer Information

Name of Issuer	Perimeter Solutions Inc
SEC File Number	001-41027
Address of Issuer	8000 Maryland Avenue, Suite 350 Clayton MISSOURI 63105
Phone	3143967343
Name of Person for Whose Account the Securities are To Be Sold	William Thorndike
See the definition of "person" in paragraph (a) of Rule 144. Information is to be given not only as to the person for whose account the securities are to be sold but also as to all other persons included in that definition. In addition, information shall be given as to sales by all persons whose sales are required by paragraph (e) of Rule 144 to be aggregated with sales for the account of the person filing this notice.
Relationship to Issuer	Director

144: Securities Information

Title of the Class of Securities To Be Sold	Name and Address of the Broker	Number of Shares or Other Units To Be Sold	Aggregate Market Value	Number of Shares or Other Units Outstanding	Approximate Date of Sale	Name the Securities Exchange
Common	UBS Financial Services Inc 1000 Harbor Blvd 3rd Floor Weehawken NJ 07086	525000	12500250	149440060	03/05/2026	NYSE

Furnish the following information with respect to the acquisition of the securities to be sold and with respect to the payment of all or any part of the purchase price or other consideration therefor:

144: Securities To Be Sold

Title of the Class	Date you Acquired	Nature of Acquisition Transaction	Name of Person from Whom Acquired	Is this a Gift?	Date Donor Acquired	Amount of Securities Acquired	Date of Payment	Nature of Payment *
Common	02/15/2025	Executive compensation	Issuer			667536	02/15/2025	N/A

* If the securities were purchased and full payment therefor was not made in cash at the time of purchase, explain in the table or in a note thereto the nature of the consideration given. If the consideration consisted of any note or other obligation, or if payment was made in installments describe the arrangement and state when the note or other obligation was discharged in full or the last installment paid.

Furnish the following information as to all securities of the issuer sold during the past 3 months by the person for whose account the securities are to be sold.

144: Securities Sold During The Past 3 Months

Name and Address of Seller	Title of Securities Sold	Date of Sale	Amount of Securities Sold	Gross Proceeds
William Thorndike 800 Boylston Street Ste 2220 Boston MA 02199	Common	03/04/2026	125000	3025666

144: Remarks and Signature

Remarks
Date of Notice	03/05/2026
ATTENTION:
The person for whose account the securities to which this notice relates are to be sold hereby represents by signing this notice that he does not know any material adverse information in regard to the current and prospective operations of the Issuer of the securities to be sold which has not been publicly disclosed. If such person has adopted a written trading plan or given trading instructions to satisfy Rule 10b5-1 under the Exchange Act, by signing the form and indicating the date that the plan was adopted or the instruction given, that person makes such representation as of the plan adoption or instruction date.
Signature	/s/Mijo Suric, for UBS Financial Services Inc, as attorney-in-fact for William Thorndike
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)