FORM 10-Q__________________________ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March29, 2026or TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Transition Period From __________ to___________ SiteOne Landscape Supply, Inc. (Exact name of registrant as specified in its charter)__________________________ 46-4056061(IRS EmployerIdentification No.) Delaware(State or other jurisdiction ofincorporation or organization) 300 Colonial Center Parkway, Suite 600, Roswell, Georgia 30076(Address of principal executive offices) (Zip Code) (470) 277-7000(Registrant’s telephone number, including area code) Securities registered pursuant to Section 12(b) of the Act: Title of each classTrading Symbol(s)Name of each exchange on which registeredCommon Stock, $0.01 par value per shareSITENew York Stock Exchange Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Actof 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has beensubject to such filing requirements for the past 90 days.Yes☒No☐ Table of Contents Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule405 of Regulation S-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required tosubmit such files).Yes☒No☐ Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reportingcompany, or an emerging growth company. See the definitions of “large accelerated filer,” “accelerated filer,” “smaller reporting company” and"emerging growth company" in Rule 12b-2 of the Exchange Act. ☒Acceleratedfiler☐SmallerreportingcompanyEmerging growth company Large accelerated filerNon-accelerated filer If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complyingwith any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.☐ Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act).Yes☐No☒ Shares Outstanding as of April 24, 202644,308,229 Title of each class Common Stock, $0.01 par value per share TABLE OF CONTENTS Part I. FINANCIAL INFORMATIONItem 1. Consolidated Financial Statements (Unaudited)ConsolidatedBalanceSheetsConsolidatedStatementsofOperationsConsolidatedStatementsofComprehensive LossConsolidatedStatementsofEquity and Redeemable Non-controlling InterestConsolidatedStatementsofCashFlowsNotes to Consolidated Financial StatementsItem 2.Management’sDiscussionandAnalysisofFinancialConditionandResultsofOperationsItem3.QuantitativeandQualitativeDisclosuresAboutMarketRiskItem4.ControlsandProcedures Part II. OTHER INFORMATIONItem1.LegalProceedingsItem1A.RiskFactorsItem 2. Unregistered Sales of Equity Securities and Use of ProceedsItem 5. Other InformationItem6.ExhibitsSignature Special Note Regarding Forward-Looking Statements and Information This Quarterly Report on Form 10-Q, other periodic reports filed by us under the Securities Exchange Act of 1934, as amended (the “ExchangeAct”), and other written or oral statements made from time to time by our management contain forward-looking statements within the meaningof the Private Securities Litigation Reform Act of 1995. Terms such as “may,” “intend,” “might,” “will,” “should,” “could,” “would,” “expect,”“believe,” “estimate,” “anticipate,” “predict,” “project,” “potential,” or the negative of these terms, and similar expressions often signifyforward-looking statements. Forward-looking statements are subject to risks and uncertainties that are beyond our control, and because theyalso relate to the future, they are likewise subject to inherent uncertainties and other factors that may cause actual results to differ materiallyfrom the views, beliefs, and projections expressed in such statements. Further, any forward-looking statement speaks only as of the date onwhich it is made, and we undertake no obligation to update any forward-looking statement to reflect events or circumstances after the date onwhich it is made or to reflect the occurrence of anticipated or unanticipated events or circumstances. Factors that may cause actual results todiffer materially from those expressed or implied by the forward-looking statements include, but are not limited to, the following: •cyclicality in residential and commercial construction markets;•general business, economic, and financial market conditions, the level of new home sales and construction activity, geopoliticalconflicts, trade disputes, inflationary pressures, capital markets vola