# EDGAR Filing Document

**Accession Number:** 0001650729
**File Stem:** 0001104659-25-062568
**Filing Date:** 2025-6
**Character Count:** 38440
**Document Hash:** 8499945b139a07696c7d25ebf699810f
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001104659-25-062568.hdr.sgml**: 20250625

**ACCESSION NUMBER**: 0001104659-25-062568

**CONFORMED SUBMISSION TYPE**: 11-K

**PUBLIC DOCUMENT COUNT**: 3

**CONFORMED PERIOD OF REPORT**: 20241231

**FILED AS OF DATE**: 20250625

**DATE AS OF CHANGE**: 20250625

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** SiteOne Landscape Supply, Inc.
- **CENTRAL INDEX KEY:** 0001650729
- **STANDARD INDUSTRIAL CLASSIFICATION:** WHOLESALE-PROFESSIONAL & COMMERCIAL EQUIPMENT & SUPPLIES [5040]
- **ORGANIZATION NAME:** 07 Trade & Services
- **EIN:** 364485550
- **STATE OF INCORPORATION:** DE
- **FISCAL YEAR END:** 1228

**FILING VALUES:**
- **FORM TYPE:** 11-K
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 001-37760
- **FILM NUMBER:** 251073670

**BUSINESS ADDRESS:**
- **STREET 1:** MANSELL OVERLOOK
- **STREET 2:** 300 COLONIAL CENTER PARKWAY, SUITE 600
- **CITY:** ROSWELL
- **STATE:** GA
- **ZIP:** 30076
- **BUSINESS PHONE:** (470) 277-7000

**MAIL ADDRESS:**
- **STREET 1:** MANSELL OVERLOOK
- **STREET 2:** 300 COLONIAL CENTER PARKWAY, SUITE 600
- **CITY:** ROSWELL
- **STATE:** GA
- **ZIP:** 30076

**UNITED STATES**

**SECURITIES AND EXCHANGE COMMISSION**

**WASHINGTON, D.C. 20549**

**FORM 11-K**

**⌧** **ANNUAL REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934** 

**For the fiscal year ended December 31, 2024**

**or**

---

| | |
|:---|:---|
| **◻** | **TRANSITION REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934** |

---

**For the Transition Period From __________ to** ___________

**Commission file number: 001-37760**

**SiteOne Savings and Investment Plan**

(Full title of the plan)

**SiteOne Landscape Supply, Inc.**

(Name of issuer of the securities held pursuant to the plan)

**300 Colonial Center Parkway**

**Suite 600**

**Roswell, Georgia 30076**

(Address of principal executive offices of issuer)

**Table of Contents**

------

---

| | |
|:---|:---|
| **[ReportS of Independent Registered Public Accounting Firms](#a_001)** | [1](#a_001) |
| **Financial Statements** |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[Statements of Net Assets Available for Benefits as of December 31, 2024 and 2023](#a_003) | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[3](#a_003) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[Statement of Changes in Net Assets Available for Benefits for the Year Ended December 31, 2024](#a_004) | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[4](#a_004) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[Notes to Financial Statements as of December 31, 2024 and 2023, and for the Year Ended December 31, 2024](#a_005) | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[5-11](#a_005) |
| **Supplemental Schedule \*** |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[Schedule H, Part IV, Line 4i - Schedule of Assets (Held at End of Year) as of December 31, 2024](#a_006) | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[13](#a_006) |
| **[Exhibit Index](#a_007)** | [14](#a_007) |
| **[Signature](#a_008)** | [15](#a_008) |

---

\* All other schedules required by Section 2520.103-10 of the Department of Labor's Rules and Regulations for Reporting and Disclosure under the Employee Retirement Income Security Act of 1974 have been omitted because they are not applicable.

#### 2
**<u>REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM</u>**

To the Benefits Committee, Plan Administrator, and

Plan Participants of the SiteOne Savings and Investment Plan

**Opinion on the Financial Statements**

We have audited the accompanying statement of net assets available for benefits of the SiteOne Savings and Investment Plan (the Plan), as of December 31, 2023, and the related statement of changes in net assets available for benefits for the year then ended, and the related notes and schedule (collectively referred to as the financial statements). In our opinion, the financial statements present fairly, in all material respects, the net assets available for benefits of the Plan as of December 31, 2023, and the changes in net assets available for benefits for the year then ended, in conformity with accounting principles generally accepted in the United States of America.

**Basis for Opinion**

These financial statements are the responsibility of the Plan's management. Our responsibility is to express an opinion on the Plan's financial statements based on our audit. We are a public accounting firm registered with the Public Company Accounting Oversight Board (United States) (PCAOB) and are required to be independent with respect to the Plan in accordance with the U.S. federal securities laws and the applicable rules and regulations of the Securities and Exchange Commission and the PCAOB.

We conducted our audit in accordance with the standards of the PCAOB. Those standards require that we plan and perform the audit to obtain reasonable assurance about whether the financial statements are free of material misstatement, whether due to error or fraud. The Plan is not required to have, nor were we engaged to perform, an audit of its internal control over financial reporting. As part of our audit, we are required to obtain an understanding of internal control over financial reporting, but not for the purpose of expressing an opinion on the effectiveness of the Plan's internal control over financial reporting. Accordingly, we express no such opinion.

Our audit included performing procedures to assess the risk of material misstatement of the financial statements, whether due to error or fraud, and performing procedures that respond to those risks. Such procedures included examining, on a test basis, evidence regarding the amounts and disclosures in the financial statements. Our audit also included evaluating the accounting principles used and significant estimates made by management, as well as evaluating the overall presentation of the financial statements. We believe that our audit provides a reasonable basis for our opinion.

/s/ Windham Brannon, LLC

We served as the Plan's auditor from 2016 through 2024.

Atlanta, Georgia

June 26, 2024

**REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM**

To the Plan Participants, Plan Administrator, and the Benefits Committee of the SiteOne Savings and Investment Plan

**Opinion on the Financial Statements**

We have audited the accompanying statements of net assets available for benefits of SiteOne Savings and Investment Plan (the "Plan") as of December 31, 2024, the related statement of changes in net assets available for benefits for the year then ended, and the related notes (collectively referred to as the "financial statements"). In our opinion, the financial statements present fairly, in all material respects, the net assets available for benefits of the Plan as of December 31, 2024, and the changes in net assets available for benefits for the year then ended, in conformity with accounting principles generally accepted in the United States of America.

**Basis for Opinion**

These financial statements are the responsibility of the Plan's management. Our responsibility is to express an opinion on the Plan's financial statements based on our audit. We are a public accounting firm registered with the Public Company Accounting Oversight Board (United States) (PCAOB) and are required to be independent with respect to the Plan in accordance with the U.S. federal securities laws and the applicable rules and regulations of the Securities and Exchange Commission and the PCAOB.

We conducted our audit in accordance with the standards of the PCAOB. Those standards require that we plan and perform the audit to obtain reasonable assurance about whether the financial statements are free of material misstatement, whether due to error or fraud. Our audit included performing procedures to assess the risks of material misstatement of the financial statements, whether due to error or fraud, and performing procedures that respond to those risks. Such procedures included examining, on a test basis, evidence regarding the amounts and disclosures in the financial statements. Our audit also included evaluating the accounting principles used and significant estimates made by management, as well as evaluating the overall presentation of the financial statements. We believe that our audit provides a reasonable basis for our opinion.

**Report on Supplemental Schedule**

The supplemental schedule of assets (held at end of year) as of December 31, 2024, has been subjected to audit procedures performed in conjunction with the audit of the Plan's financial statements. The supplemental schedule is the responsibility of the Plan's management. Our audit procedures included determining whether the supplemental schedule reconcile to the financial statements or the underlying accounting and other records, as applicable, and performing procedures to test the completeness and accuracy of the information presented in the supplemental schedule. In forming our opinion on the supplemental schedule, we evaluated whether the supplemental schedule, including its form and content, is presented in compliance with the Department of Labor's Rules and Regulations for Reporting and Disclosure under the Employee Retirement Income Security Act of 1974. In our opinion, such schedule is fairly stated, in all material respects, in relation to the financial statements as a whole.

/s/ DELOITTE & TOUCHE LLP

Atlanta, Georgia

June 25, 2025

We have served as the auditor of the Plan since 2025.

**SiteOne Savings and Investment Plan**

**Statements of Net Assets Available for Benefits** 

---

| | | |
|:---|:---|:---|
|  | **December 31** | **December 31** |
|  | **2024** | **2023** |
| **Assets** |  |  |
| **Investments**, at fair value (Note 3) | $**508609665** | $427841381 |
| **Receivables:** |  |  |
| &nbsp;&nbsp;&nbsp;Employer contributions | **943812** | 933395 |
| &nbsp;&nbsp;&nbsp;Notes receivable from participants | **9575093** | 8061414 |
| **Total receivables** | **10518905** | 8994809 |
| **Net assets available for benefits** | $**519128570** | $436836190 |

---

**SiteOne Savings and Investment Plan**

**Statement of Changes in Net Assets Available for Benefits**

---

| | |
|:---|:---|
|  | **Year ended<br> December 31,**<br>**2024** |
| **Additions to net assets attributable to:** |  |
| **Investment income:** |  |
| &nbsp;&nbsp;&nbsp;Interest and dividend income | $**20162395** |
| &nbsp;&nbsp;&nbsp;Net appreciation in fair value of investments | **45866746** |
| **Total investment income** | **66029141** |
| **Interest income on notes receivable from participants** | **721539** |
| **Contributions:** |  |
| &nbsp;&nbsp;&nbsp;Participant contributions | **39066146** |
| &nbsp;&nbsp;&nbsp;Employer contributions, net of forfeitures | **17386303** |
| &nbsp;&nbsp;&nbsp;Participant rollovers | **5060345** |
| **Total contributions** | **61512794** |
| **Deductions:** |  |
| &nbsp;&nbsp;&nbsp;Benefits paid to participants and beneficiaries | **(45579757)** |
| &nbsp;&nbsp;&nbsp;Administrative expenses | **(391337)** |
| **Total deductions** | **(45971094)** |
| **Net increase** | **82292380** |
| **Net assets available for benefits:** |  |
| &nbsp;&nbsp;&nbsp;Beginning of year | **436836190** |
| &nbsp;&nbsp;&nbsp;End of year | $**519128570** |

---

**SiteOne Savings and Investment Plan**

**Notes to Financial Statements<br> As of December 31, 2024 and 2023,<br> and for the Year Ended December 31, 2024**

**1.** **Description of Plan** 

The following description of the SiteOne Savings and Investment Plan ("the Plan") provides only general information. Participants should refer to the Plan document for a more complete description of the Plan's provisions.

***General***

The Plan is a defined contribution plan under Section 401(k) of the Internal Revenue Code covering substantially all employees of SiteOne Landscape Supply, Inc. and its subsidiaries ("the Company"), except for collective bargaining employees, leased employees, non-resident aliens with no U.S. source income, and seasonal employees. The Plan is subject to the provisions of the Employee Retirement Income Security Act of 1974, as amended ("ERISA").

From time to time, the Company enters into strategic acquisitions in an effort to better service existing customers and to attract new customers. The Company's policy is to have the seller terminate any benefit plans that they had in place. Any onboarded employees are offered participation in the Plan in accordance with the Plan's eligibility provisions.

In August 2023, the Company acquired all of the outstanding stock of Pioneer Landscape Centers, Inc. and JLL Pioneer LLC (collectively, "Pioneer"). The Plan was amended effective January 1, 2024 to make Pioneer a participating employer and grant Pioneer predecessor service for purposes of eligibility.

On December 23, 2022, Congress passed the Consolidated Appropriations Act of 2023 which included SECURE Act 2.0. SECURE Act 2.0 contains approximately 90 new retirement provisions, with varying effective dates through 2027. Since SECURE Act 2.0 provisions include both required and optional elements, the plan administrator will determine the optional provisions to elect and amend the Plan document accordingly. Most of the significant provisions became effective in 2024. There was no material impact to the Plan's 2024 financial statements.

***Contributions***

Eligible employees are automatically enrolled into the Plan after 30 days of employment unless the employee elects otherwise. Pre-tax contributions are withheld at 3% of eligible compensation and increased by 1% each year until it reaches 50% of eligible compensation unless the employee elects differently. Each year, participants may make pre-tax or Roth after-tax contributions up to 50% of eligible compensation, as defined by the Plan document, not to exceed a maximum of $23,000 for the Plan year. Participants who have attained age 50 before the end of the Plan year are eligible to make catch-up contributions of up to $7,500 for the Plan year. Participants may also contribute amounts representing distributions from other qualified defined benefit or defined contribution plans. The Company may make discretionary matching contributions. For the year ended December 31, 2024, the Company made matching contributions equal to 120% of the first 2% of the participant's eligible compensation plus 40% of the next 4% of the participant's eligible compensation. No allowance for credit losses has been recorded as of December 31, 2024 or 2023.

 ****

**SiteOne Savings and Investment Plan**

**Notes to Financial Statements<br> As of December 31, 2024 and 2023,<br> and for the Year Ended December 31, 2024**

***Participant Accounts***

Each participant's account is credited with the participant's contributions and any Company matching contributions as well as allocations of Plan earnings and losses and charged with certain administrative expenses. The benefit to which a participant is entitled is the benefit that can be provided from the participant's vested account. Participants direct the investment of their contributions into various investment options offered by the Plan. The Plan currently offers mutual funds, a Company Stock Fund, a money market fund, self-directed brokerage accounts, and a collective investment trust fund as investment options for participants.

***Vesting***

Participants are vested immediately in their voluntary contributions plus actual earnings and losses thereon. A participant is 100% vested in employer matching contributions after three years of credited service if employed after December 23, 2013. If employed prior to that date, a participant is always 100% vested in the employer matching contribution. Certain matching contributions from prior employers of merged plans are subject to vesting schedules in place at the time of the merger.

***Notes Receivable from Participants***

Participants may borrow from their fund accounts a minimum of $1,000 up to a maximum equal to the lesser of $50,000 reduced by the highest outstanding loan balance in their account during the prior twelve month period or 50% of their vested account balance. The notes are secured by the balance in the participant's account and bear interest at a rate commensurate with prevailing rates as determined by the plan administrator. As of December 31, 2024 and 2023, all notes currently bear rates ranging from 4.25% to 10.50%. Principal and interest is paid ratably through payroll deductions.

***Payment of Benefits***

On termination of service due to separation, death, disability, or retirement, a participant may elect to receive an amount equal to the value of the participant's vested interest in his or her account in a lump-sum amount. The Plan also permits in-service distributions for participants that have attained age 59 ½. Hardship distributions are permitted upon demonstration of a financial hardship, as defined by the Plan document.

***Forfeited Accounts***

Forfeitures may be used to reduce Company contributions or Plan expenses. At December 31, 2024 and 2023, forfeited non-vested account balances amounted to $775,320 and $78,618, respectively. During 2024, $1,362,320 in forfeitures was used to reduce employer contributions, and $643 was used to pay administrative expenses.

***Company Stock Fund***

The Plan invests in common stock of the Company through its Company Stock Fund. The Company Stock Fund may also hold cash or other short-term securities, although these are expected to be a small percentage of the fund. Dividends received by the Company Stock Fund are reinvested in Company common stock.

**SiteOne Savings and Investment Plan**

**Notes to Financial Statements<br> As of December 31, 2024 and 2023,<br> and for the Year Ended December 31, 2024**

The Plan limits the amount a participant can invest in the Company Stock Fund to encourage diversification of participants' accounts. Contribution limits were set at a maximum of 10% of each participant's contributions. In addition, a participant may not transfer amounts from other investment funds into the Company Stock Fund to the extent the transfer would result in more than 10% of the participant's total account balance being invested in the Company Stock Fund.

**2.** **Summary of Significant Accounting Policies** 

***Basis of Accounting***

The financial statements of the Plan have been prepared in accordance with accounting principles generally accepted in the United States of America ("GAAP").

***Use of Estimates***

The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets, liabilities, and changes therein, and disclosure of contingent assets and liabilities. Actual results could differ from those estimates.

***Investment Valuation and Income Recognition***

The Plan's investments are reported at fair value. The fair value of a financial instrument is the amount that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date (the exit price). See Note 3 for discussion of fair value measurements.

Purchases and sales of securities are recorded on a trade-date basis. Interest income is recorded when received. Dividends are recorded on the ex-dividend date. Net appreciation/(depreciation) in fair value of investments includes the Plan's gains and losses on investments bought and sold as well as held during the year.

***Notes Receivable from Participants***

Notes receivable from participants are measured at their unpaid principal balance. Interest income is recorded when received. Related fees are recorded as administrative expenses and are expensed as they are incurred. No allowance for credit losses has been recorded as of December 31, 2024 or 2023. If a participant ceases to make loan repayments and the plan administrator deems the participant loan to be in default, the participant loan balance is reduced, and a benefit payment is recorded. There were $41,842 in deemed distributions recorded during the year ended December 31, 2024.

***Payment of Benefits***

Benefits are recorded when paid.

**SiteOne Savings and Investment Plan**

**Notes to Financial Statements<br> As of December 31, 2024 and 2023,<br> and for the Year Ended December 31, 2024**

***Expenses***

Certain expenses of maintaining the Plan are paid directly by the Company and are excluded from these financial statements. The Company does not expect reimbursement from the Plan for these expenses. Participants are charged an asset-based service fee for administrative expenses of the Plan related to recordkeeping, accounting, and investment advisory services. Participants also pay certain administrative fees for participant-initiated transactions. Investment related expenses are included in net appreciation/(depreciation) in fair value of investments.

**3.** **Fair Value Measurements** 

The framework for measuring fair value provides a fair value hierarchy that prioritizes the inputs to valuation techniques used to measure fair value. The hierarchy gives the highest priority to unadjusted quoted prices in active markets for identical assets or liabilities (level 1 measurements) and the lowest priority to unobservable inputs (level 3 measurements). The three levels of the fair value hierarchy under the Financial Accounting Standards Board Accounting Standards Codification 820, *Fair Value Measurement* ("FASB ASC 820") are described as follows:

***Level 1:*** Inputs to the valuation methodology are unadjusted quoted prices for identical assets or liabilities in active markets.

***Level 2:*** Inputs to the valuation methodology include:

&nbsp;&nbsp;&nbsp;&nbsp;· Quoted prices for similar assets or liabilities
in active markets;

&nbsp;&nbsp;&nbsp;&nbsp;· Quoted prices for identical or similar assets
or liabilities in inactive markets;

&nbsp;&nbsp;&nbsp;&nbsp;· Inputs other than quoted prices that are observable
for the asset or liability; and

&nbsp;&nbsp;&nbsp;&nbsp;· Inputs that are derived principally from or corroborated
by observable market data by correlation or other means.

If the asset or liability has a specified (contractual) term, the level 2 input must be observable for substantially the full term of the asset or liability.

***Level 3:*** Inputs to the valuation methodology are unobservable and significant to the fair value measurement.

The asset's or liability's fair value measurement level within the fair value hierarchy is based on the lowest level of any input that is significant to the fair value measurement. Valuation techniques used need to maximize the use of observable inputs and minimize the use of unobservable inputs.

The following is a description of the valuation methodologies used for assets measured at fair value. There have been no changes to the methodologies used at December 31, 2024 and 2023.

*Mutual Funds and Money Market Fund:* The money market fund and mutual funds are valued at the daily closing price as reported by each fund. These funds are registered with the Securities and Exchange Commission and are required to publish their daily net asset value ("NAV") and to transact at that price. These funds held by the Plan are deemed to be actively traded.

**SiteOne Savings and Investment Plan**

**Notes to Financial Statements<br> As of December 31, 2024 and 2023,<br> and for the Year Ended December 31, 2024**

*Company Common Stock:* Company common stock is valued at the closing price reported on the active market on which the individual security is traded.

*Self-Directed Brokerage Accounts ("SDBA"):* The SDBA include a variety of common stocks, interest bearing cash, and mutual funds. Interest bearing cash is valued at amortized cost plus accrued interest, which approximates fair value.

*Collective Investment Trust Fund:* The Fidelity Managed Income Portfolio ("MIP") is a collective investment trust fund that seeks to preserve principal by maintaining a stable NAV. The funds trade daily using NAV as a practical expedient. The fund has redemption restrictions that limit the timing of withdrawals. Participant directed withdrawals may be made on any business day, provided that the exchange is not directed into a competing fund. Transferred amounts must hold a non-competing investment option for 90 days before funds may be transferred to a competing fund. In addition, redemptions of the fund directed by the Company must be preceded by 12 months written notice to Fidelity.

The preceding methods described may produce a fair value calculation that may not be indicative of net realizable value or reflective of future fair values. Furthermore, although the Plan believes its valuation methods are appropriate and consistent with other market participants, the use of different methodologies or assumptions to determine the fair value of certain financial instruments could result in a different fair value measurement at the reporting date.

The following tables set forth by level, within the fair value hierarchy, the Plan's assets at fair value as of December 31, 2024 and 2023.

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| | | | | |
|:---|:---|:---|:---|:---|
| **Investments at Fair Value as of December 31, 2024** | **Investments at Fair Value as of December 31, 2024** | **Investments at Fair Value as of December 31, 2024** | **Investments at Fair Value as of December 31, 2024** | **Investments at Fair Value as of December 31, 2024** |
|  | **Level 1** | **Level 2** | **Level 3** | **Total** |
| **Investments subject to the fair value hierarchy:** |  |  |  |  |
| &nbsp;&nbsp;&nbsp;Mutual funds | $486986976 | $- | $- | $486986976 |
| &nbsp;&nbsp;&nbsp;Company common stock | 4191157 |  |  | 4191157 |
| &nbsp;&nbsp;&nbsp;Money market fund | 7871605 |  |  | 7871605 |
| &nbsp;&nbsp;&nbsp;Self-directed brokerage accounts | 7951984 | - | - | 7951984 |
| **Investments measured at net asset value as a practical expedient<sup>(a)</sup>** |  |  |  | 1607943 |
| **Total investments,** at fair value |  |  |  | $508609665 |

---

**SiteOne Savings and Investment Plan**

**Notes to Financial Statements<br> As of December 31, 2024 and 2023,<br> and for the Year Ended December 31, 2024**

---

| | | | | |
|:---|:---|:---|:---|:---|
| **Investments at Fair Value as of December 31, 2023** | **Investments at Fair Value as of December 31, 2023** | **Investments at Fair Value as of December 31, 2023** | **Investments at Fair Value as of December 31, 2023** | **Investments at Fair Value as of December 31, 2023** |
|  | **Level 1** | **Level 2** | **Level 3** | **Total** |
| **Investments subject to the fair value hierarchy:** |  |  |  |  |
| &nbsp;&nbsp;&nbsp;Mutual funds | $407415015 | $- | $- | $407415015 |
| &nbsp;&nbsp;&nbsp;Company common stock | 5159539 |  |  | 5159539 |
| &nbsp;&nbsp;&nbsp;Money market fund | 6919209 |  |  | 6919209 |
| &nbsp;&nbsp;&nbsp;Self-directed brokerage accounts | 6244063 | - | - | 6244063 |
| **Investments measured at net asset value as a practical expedient<sup>(a)</sup>** |  |  |  | 2103555 |
| **Total investments,** at fair value |  |  |  | $427841381 |

---

&nbsp;&nbsp;&nbsp;&nbsp;*(a)* *Certain investments that were measured at net asset value per share (or its equivalent) as a practical expedient have not been classified in the fair value hierarchy. The fair value amounts presented in this table are intended to permit reconciliation of the fair value hierarchy to the line items presented in the Statements of Net Assets Available for Benefits.* 

**4.** **Investment that Trades at NAV as a Practical Expedient** 

The following tables set forth additional disclosures of the investments whose fair value is estimated using NAV per share or its equivalent as a practical expedient as of December 31, 2024 and 2023 for the Plan:

---

| | | | | | |
|:---|:---|:---|:---|:---|:---|
| | **Fair Value Estimated Using NAV per Share** | **Fair Value Estimated Using NAV per Share** | **Fair Value Estimated Using NAV per Share** | **Fair Value Estimated Using NAV per Share** | **Fair Value Estimated Using NAV per Share** |
| | **December 31, 2024** | **December 31, 2024** | **December 31, 2024** | **December 31, 2024** | **December 31, 2024** |
| <br>**Investment** |<br>**Fair Value** |<br>**Unfunded**<br>**Commitment** |<br>**Redemption**<br>**Frequency** | **Other**<br>**Redemption**<br>**Restrictions** | **Redemption**<br>**Notice**<br>**Period** |
| Collective investment trust fund - stable value | $1607943 | $&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;- | Daily | Cannot make direct exchange into competing fund for 90 days | 1 year |

---

**SiteOne Savings and Investment Plan**

**Notes to Financial Statements<br> As of December 31, 2024 and 2023,<br> and for the Year Ended December 31, 2024**

---

| | | | | | |
|:---|:---|:---|:---|:---|:---|
| | **Fair Value Estimated Using NAV per Share** | **Fair Value Estimated Using NAV per Share** | **Fair Value Estimated Using NAV per Share** | **Fair Value Estimated Using NAV per Share** | **Fair Value Estimated Using NAV per Share** |
| | **December 31, 2023** | **December 31, 2023** | **December 31, 2023** | **December 31, 2023** | **December 31, 2023** |
| <br>**Investment** |<br>**Fair Value** |<br>**Unfunded**<br>**Commitment** |<br>**Redemption**<br>**Frequency** | **Other**<br>**Redemption**<br>**Restrictions** | **Redemption**<br>**Notice**<br>**Period** |
| Collective investment trust fund - stable value | $2103555 | $&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;- | Daily | Cannot make direct exchange into competing fund for 90 days | 1 year |

---

**5.** **Plan Termination** 

Although it has not expressed any intent to do so, the Company has the right under the Plan to discontinue its contributions at any time and to terminate the Plan subject to the provisions of ERISA. In the event of Plan termination, participants would become fully vested in their Company contributions. The Plan's assets would be distributable to the participants in accordance with the respective values of their accounts.

**6.** **Income Tax Status** 

The Company has adopted a pre-approved Plan document, which has received a determination letter dated June 30, 2020, that the Plan document is designed in accordance with applicable sections of the Internal Revenue Code ("IRC"). The plan administrator and the Plan's management believe that the Plan, as restated, is designed and is currently being operated in compliance with the applicable requirements of the IRC and therefore believe the Plan is qualified and the related trust is tax-exempt.

**7.** **Risks and Uncertainties** 

The Plan invests in various investments. Investments are exposed to various risks such as interest rate, market, and credit volatility. Market risks include U.S. and global events that could impact the value of Plan investments. Due to the level of risk associated with certain investments, it is at least reasonably possible that changes in the values of investments will occur in the near term and that such changes could materially affect participants' account balances and the amounts reported in the statements of net assets available for benefits.

**8.** **Related Party Transactions and Party-in-Interest Transactions** 

The Plan held 31,790 and 31,739 shares of Company common stock valued at $4,191,157 and $5,159,539 at December 31, 2024 and 2023, respectively. There were no dividends declared on the Company common stock during 2024.

Plan investments include shares of mutual funds, a money market fund, self-directed brokerage accounts, and a collective investment trust fund managed by Fidelity. Fidelity is the trustee for the Plan; therefore, transactions in these investments qualify as party-in-interest transactions. Fees incurred by the Plan for investment management services are included in net appreciation in fair value of investments, as they are paid through revenue sharing rather than a direct payment.

**SUPPLEMENTAL** 

**SCHEDULE**

**SiteOne Savings and Investment Plan**

**Schedule H, Part IV, Line 4i - Schedule of Assets (Held at End of Year) <br> December 31, 2024**

------

**Plan #:** 002

**EIN:** 36-4485550

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| | | | | |
|:---|:---|:---|:---|:---|
| <br>**(a)** | <br>**(b) Identity of Issuer,**<br>**borrower, lessor or**<br>**similar party** | **(c) Description of Investment,**<br>**including maturity date,**<br>**rate of interest, collateral,**<br>**par or maturity value** | <br>**(d) Cost** |<br><br>**(e) Current Value** |
|  | **Mutual funds:** |  |  |  |
|  | &nbsp;&nbsp;&nbsp;T. Rowe Price | Retirement 2030 Fund | \*\* | $62940507 |
|  | &nbsp;&nbsp;&nbsp;T. Rowe Price | Retirement 2035 Fund | \*\* | 62745013 |
| \* | &nbsp;&nbsp;&nbsp;Fidelity | Growth Company Fund | \*\* | 62694760 |
|  | &nbsp;&nbsp;&nbsp;T. Rowe Price | Retirement 2045 Fund | \*\* | 54398154 |
|  | &nbsp;&nbsp;&nbsp;T. Rowe Price | Retirement 2040 Fund | \*\* | 50744303 |
|  | &nbsp;&nbsp;&nbsp;T. Rowe Price | Retirement 2025 Fund | \*\* | 37567922 |
|  | &nbsp;&nbsp;&nbsp;T. Rowe Price | Retirement 2050 Fund | \*\* | 30527924 |
| \* | &nbsp;&nbsp;&nbsp;Fidelity | 500 Index Fund | \*\* | 32114161 |
|  | &nbsp;&nbsp;&nbsp;T. Rowe Price | Retirement 2055 Fund | \*\* | 23556485 |
|  | &nbsp;&nbsp;&nbsp;T. Rowe Price | Retirement 2020 Fund | \*\* | 12014833 |
| \* | &nbsp;&nbsp;&nbsp;Fidelity | Mid Cap Index Fund | \*\* | 9549729 |
|  | &nbsp;&nbsp;&nbsp;T. Rowe Price | Retirement 2060 Fund | \*\* | 10229628 |
|  | &nbsp;&nbsp;&nbsp;JP Morgan | US Value Fund | \*\* | 7922075 |
| \* | &nbsp;&nbsp;&nbsp;Fidelity | Small Cap Index Fund | \*\* | 6682692 |
|  | &nbsp;&nbsp;&nbsp;T. Rowe Price | Retirement 2015 Fund | \*\* | 3697913 |
|  | &nbsp;&nbsp;&nbsp;MFS | International Diversification Fund | \*\* | 3171873 |
|  | &nbsp;&nbsp;&nbsp;T. Rowe Price | Retirement 2065 Fund | \*\* | 5048423 |
|  | &nbsp;&nbsp;&nbsp;JP Morgan | Core Bond Fund | \*\* | 2438330 |
|  | &nbsp;&nbsp;&nbsp;T. Rowe Price | Retirement Balanced Fund | \*\* | 1881134 |
| \* | &nbsp;&nbsp;&nbsp;Fidelity | Real Estate Index Fund | \*\* | 1698101 |
| \* | &nbsp;&nbsp;&nbsp;Fidelity | US Bond Index Fund | \*\* | 2119904 |
| \* | &nbsp;&nbsp;&nbsp;Fidelity | Global Ex US Index Fund | \*\* | 1702604 |
|  | &nbsp;&nbsp;&nbsp;DFA | Emerging Markets Core Equity Fund | \*\* | 994145 |
| \* | &nbsp;&nbsp;&nbsp;Fidelity | Inflation - Protected Index Fund | \*\* | 546363 |
|  | **Total mutual funds** |  |  | 486986976 |
|  | **Company common stock:** |  |  |  |
| \* | &nbsp;&nbsp;&nbsp;SiteOne | Company Stock | \*\* | 4191157 |
|  | **Money market fund:** |  |  |  |
| \* | &nbsp;&nbsp;&nbsp;Fidelity | Government Money Market Fund | \*\* | 7871605 |
|  | **Self-directed brokerage accounts** |  |  |  |
|  | &nbsp;&nbsp;&nbsp;Brokerage Link | Common Stock | \*\* | 5077332 |
|  | &nbsp;&nbsp;&nbsp;Brokerage Link | Interest Bearing Cash | \*\* | 814094 |
|  | &nbsp;&nbsp;&nbsp;Brokerage Link | Government Bond | \*\* | 485958 |
|  | &nbsp;&nbsp;&nbsp;Brokerage Link | Unit | \*\* | 629897 |
| \* | &nbsp;&nbsp;&nbsp;Brokerage Link | Fidelity Fund | \*\* | 555841 |
|  | &nbsp;&nbsp;&nbsp;Brokerage Link | Certificate of Deposit | \*\* | 227182 |
|  | &nbsp;&nbsp;&nbsp;Brokerage Link | External Fund | \*\* | 157012 |
|  | &nbsp;&nbsp;&nbsp;Brokerage Link | Corporate Bond | \*\* | 4943 |
|  | &nbsp;&nbsp;&nbsp;Brokerage Link | Rights/Warrants | \*\* | (275) |
|  | **Total self-directed brokerage accounts** | **Total self-directed brokerage accounts** |  | 7951984 |
|  | **Collective investment trust fund:** |  |  |  |
| \* | &nbsp;&nbsp;&nbsp;Fidelity | Managed Income Portfolio | \*\* | 1607943 |
|  | **Total investments per financial statements** | **Total investments per financial statements** |  | 508609665 |
| \* | Notes receivable from participants | Interest rates ranging from 4.25%-10.50% |  | 9575093 |
|  | **Total investments per Form 5500** |  |  | $518184758 |

---

\* Represents a party-in-interest. <br> \*\* Cost information is not required as all investments are participant directed.

**EXHIBIT INDEX**

---

| | |
|:---|:---|
| **Exhibit No.** | **Description** |
| [23.1](tm2518579d1_23-1.htm) | [Consent of Windham Brannon, LLC](tm2518579d1_23-1.htm) |
| [23.2](tm2518579d1_23-2.htm) | [Consent of Deloitte & Touche LLP](tm2518579d1_23-2.htm) |

---

**SIGNATURE**

Pursuant to the requirements of the Securities Exchange Act of 1934, SiteOne Landscape Supply, Inc., as administrator of the Plan, has duly caused this annual report to be signed on its behalf by the undersigned thereunto duly authorized.

---

| | | |
|:---|:---|:---|
|  | **SITEONE SAVINGS AND INVESTMENT PLAN** | **SITEONE SAVINGS AND INVESTMENT PLAN** |
|  | By: Benefits Committee of SiteOne Landscape Supply, Inc. | By: Benefits Committee of SiteOne Landscape Supply, Inc. |
|  | By: | /s/ Joe Ketter |
|  |  | Joe Ketter, Committee Member |
| Date: June 25, 2025 |  |  |

---

## Exhibit 23.1

**Exhibit 23.1**

**CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM**

We hereby consent to the incorporation by reference of our report dated June 26, 2024, appearing in the Annual Report of SiteOne Savings and Investment Plan on Form 11-K for the year ended December 31, 2023, in the Registration Statements of SiteOne Landscape Supply, Inc. on Form S-8 (File No. 333-221464).

/s/ Windham Brannon, LLC

Atlanta, Georgia

June 25, 2025

## Exhibit 23.2

**Exhibit 23.2**

**CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM**

We consent to the incorporation by reference in Registration Statement No. 333-221464 of SiteOne Landscape Supply, Inc on Form S-8 of our report dated June 25, 2025, relating to the financial statements and supplemental schedule of the SiteOne Savings and Investment Plan, appearing in this Annual Report on Form 11-K of the SiteOne Savings and Investment Plan for the year ended December 31, 2024.

/s/ DELOITTE & TOUCHE LLP

Atlanta, Georgia

June 25, 2025