UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of

the Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): October 29, 2025

SiteOne Landscape Supply, Inc.

(Exact name of registrant as specified in its charter)

Delaware		001-37760		46-4056061
(State or other jurisdiction of incorporation)		(Commission File Number)		(IRS Employer Identification No.)

300 Colonial Center Parkway, Suite 600 Roswell, Georgia		30076
(Address of principal executive offices)		(Zip Code)

Registrant’s telephone number, including area code:

(470) 277-7000

Not Applicable
(Former name or former address, if changed since last report)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

	¨	Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

	¨	Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

	¨	Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

	¨	Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Securities registered pursuant to Section 12(b) of the Act:

Title of each class		Trading Symbol(s)		Name of each exchange on which registered
Common Stock, par value $0.01 per share		SITE		New York Stock Exchange

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).

Emerging growth company ¨

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ¨

Item 2.02 Results of Operations and Financial Condition.

On October 29, 2025, SiteOne Landscape Supply, Inc. issued a press release announcing its results of operations for the third quarter ended September 28, 2025. A copy of the press release is furnished herewith as Exhibit 99.1.

Item 9.01 Financial Statements and Exhibits.

Exhibit No.		Description

99.1		Press Release dated October 29, 2025
104		Cover Page Interactive Data File (embedded within the Inline XBRL document)

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

	SITEONE LANDSCAPE SUPPLY, INC.


	By:	/s/ John T. Guthrie
		John T. Guthrie
		Executive Vice President, Chief Financial Officer and Assistant Secretary

Date: October 29, 2025

EXHIBIT INDEX TO CURRENT REPORT ON FORM 8-K
Dated October 29, 2025

99.1	Press Release dated October 29, 2025

SiteOne Landscape Supply, Inc. 8-K