SITE Form 144: 865 Shares Proposed Sale — $125,486 Value

Form 144 notice for SiteOne Landscape Supply, Inc. (SITE): The filer reports a proposed sale of 865 common shares on 08/29/2025 through Fidelity Brokerage Services LLC on the NYSE.

Rhea-AI Filing Summary

Form 144 notice for SiteOne Landscape Supply, Inc. (SITE): The filer reports a proposed sale of 865 common shares on 08/29/2025 through Fidelity Brokerage Services LLC on the NYSE. The aggregate market value of the proposed sale is listed as $125,485.55 and the issuer’s outstanding common shares are reported as 44,612,581. The 865 shares were acquired on 05/07/2025 by restricted stock vesting from the issuer and the acquisition was compensation. The filer reports nothing to report for securities sold in the past three months.

Insights

Securities Analyst

TL;DR: Small proposed insider sale of 865 vested shares, immaterial relative to outstanding shares and unlikely to move the market.

The filing documents a proposed sale of 865 common shares with an aggregate value of $125,485.55, to occur through Fidelity on the NYSE. These shares were acquired via restricted stock vesting on 05/07/2025 as compensation. Given the outstanding share count of 44,612,581, the position represents approximately 0.0019% of outstanding stock, indicating negligible market impact. No sales in the prior three months are reported, and the filer makes the standard representation regarding material nonpublic information.

Corporate Governance Expert

TL;DR: Routine Rule 144 notice for vested compensation shares; standard disclosures and signature attestation included.

The Form 144 shows the sale arises from restricted stock vesting and payment characterized as compensation, which is a common post-vesting notice under Rule 144. The filer certifies no undisclosed material adverse information and provides broker details. There are no indications of accelerated insider selling or aggregated sales in the past three months, suggesting this is a routine compliance disclosure rather than a governance concern.

FAQ

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

What does the SITE Form 144 report say about the number of shares to be sold?

The filer proposes to sell 865 common shares.

When is the proposed sale date in the SITE Form 144?

The approximate date of sale is listed as 08/29/2025.

How were the 865 shares acquired according to the filing?

The shares were acquired on 05/07/2025 by restricted stock vesting from the issuer and the payment is listed as compensation.

What is the aggregate market value and exchange for the proposed SITE sale?

The aggregate market value is $125,485.55 and the sale is to occur on the NYSE through Fidelity Brokerage Services LLC.

Does the SITE Form 144 report any securities sold in the past three months?

The filing states Nothing to Report for securities sold during the past three months.

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

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Accepted by SEC EDGAR 08/29/2025 - 09:51 AM Learn about SEC filing dates

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	0001712371
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	SiteOne Landscape Supply, Inc.
SEC File Number	001-37760
Address of Issuer	MANSELL OVERLOOK 300 COLONIAL CENTER PARKWAY, SUITE 600 ROSWELL GEORGIA 30076
Phone	(470) 277-7000
Name of Person for Whose Account the Securities are To Be Sold	Diaz Fred M
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	Fidelity Brokerage Services LLC 900 Salem Street Smithfield RI 02917	865	125485.55	44612581	08/29/2025	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	05/07/2025	Restricted Stock Vesting	Issuer			865	05/07/2025	Compensation

* 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

Nothing to Report

144: Remarks and Signature

Remarks
Date of Notice	08/29/2025
Date of Plan Adoption or Giving of Instruction, If Relying on Rule 10b5-1	05/27/2025
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/ Jennifer Ruchti, as a duly authorized representative of Fidelity Brokerage Services LLC, as attorney-in-fact for Fred M. Diaz Jr
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)