SITE

SEC.gov | Request Rate Threshold Exceeded

U.S. Securities and Exchange Commission

You’ve Exceeded the SEC’s Traffic Limit

Your request rate has exceeded the SEC’s maximum allowable requests per second. Your access to SEC.gov will be limited for 10 minutes.

Current guidelines limit each user to a total of no more than 10 requests per second, regardless of the number of machines used to submit requests. To ensure that SEC.gov remains available to all users, we reserve the right to block IP addresses that submit excessive requests.

The block will be lifted automatically by waiting 10 minutes. Continuing to exceed the SEC’s maximum allowable request rate during the time-out period will extend the duration of the time-out period. To ensure fair access for all users, please reduce the rate of your requests and visit SEC.gov again after the 10 minute time-out period has passed.

For best practices on efficiently downloading information from SEC.gov, including the latest EDGAR filings, visit sec.gov/developer. You can also sign up for email updates on the SEC open data program, including best practices that make it more efficient to download data, and SEC.gov enhancements that may impact scripted downloading processes. For more information, contact opendata@sec.gov.

For more information, please see the SEC’s Web Site Privacy and Security Policy. Thank you for your interest in the U.S. Securities and Exchange Commission.

Reference ID: 0.e618d017.1785595398.30c13b23

More Information

Internet Security Policy

By using this site, you are agreeing to security monitoring and auditing. For security purposes, and to ensure that the public service remains available to users, this government computer system employs programs to monitor network traffic to identify unauthorized attempts to upload or change information or to otherwise cause damage, including attempts to deny service to users.

Unauthorized attempts to upload information and/or change information on any portion of this site are strictly prohibited and are subject to prosecution under the Computer Fraud and Abuse Act of 1986 and the National Information Infrastructure Protection Act of 1996 (see Title 18 U.S.C. §§ 1001 and 1030).

To ensure our website performs well for all users, the SEC monitors the frequency of requests for SEC.gov content to ensure automated searches do not impact the ability of others to access SEC.gov content. We reserve the right to block IP addresses that submit excessive requests. Current guidelines limit users to a total of no more than 10 requests per second, regardless of the number of machines used to submit requests.

If a user or application submits more than 10 requests per second, further requests from the IP address(es) may be limited for a brief period. Once the rate of requests has dropped below the threshold for 10 minutes, the user may resume accessing content on SEC.gov. This SEC practice is designed to limit excessive automated searches on SEC.gov and is not intended or expected to impact individuals browsing the SEC.gov website.

Note that this policy may change as the SEC manages SEC.gov to ensure that the website performs efficiently and remains available to all users.

Note: We do not offer technical support for developing or debugging scripted downloading processes.

EX-99.1

2 tm2613027d1_ex99-1.htm

EXHIBIT 99.1

Exhibit 99.1

April 29, 2026

SiteOne Landscape Supply Announces First Quarter 2026 Earnings

First Quarter 2026 Highlights (Compared to First Quarter 2025):

·Net sales increased $0.7 million to $940.1 million

·Organic Daily Sales decreased 1%

·Gross profit increased 3% to $318.8 million; gross margin improved 90 basis points to 33.9%

·SG&A as a percentage of Net sales increased 70 basis points to 37.2%; Base Business SG&A was flat on an adjusted basis

·Net loss attributable to SiteOne of $26.6 million, compared to $27.3 million for the prior year period

·Adjusted EBITDA1 increased 14% to $25.5 million; Adjusted EBITDA margin improved 30 basis points to 2.7%

·Cash used in operating activities decreased $7.5 million to $122.1 million

·Closed the acquisitions of Bourget Flagstone and Reinders

·Repurchased $20.0 million of shares under the share repurchase authorization

Post Quarter Highlights

·Amended ABL Facility and extended maturity to April 2031

ROSWELL, Ga. — (BUSINESS WIRE) — SiteOne Landscape Supply, Inc. (the “Company” or “SiteOne”) (NYSE: SITE) announced earnings for its first quarter ended March 29, 2026 (“First Quarter 2026”).

“We are pleased with our first quarter performance as we more than offset the weather and market-related softness in sales volume and delivered Adjusted EBITDA growth with meaningful gross margin improvement and continued tight SG&A management,” said Doug Black, Chairman and CEO of SiteOne. “Our teams are executing our commercial and operational initiatives well, which is allowing us to gain market share and expand our Adjusted EBITDA margin. During the quarter, we were also very pleased to complete the acquisition of Reinders, a strong fifth-generation market leader in the Midwest, displaying the power of our acquisition strategy. Looking ahead, we remain confident in our ability to navigate the near-term challenges, deliver superior value to our customers and suppliers, and execute our strategy to drive sustained performance and growth for shareholders.”

First Quarter 2026 Results

Net sales for the First Quarter 2026 increased $0.7 million to $940.1 million compared to $939.4 million for the prior year period. Organic Daily Sales decreased 1% compared to the prior year period, primarily due to unfavorable weather conditions across several regions, which resulted in lower volumes. While pricing was positive, lower sales volume drove the year-over-year decline in Organic Daily Sales. Acquisitions contributed $12.4 million, or 1%, to Net sales growth for the quarter.

Gross profit increased 3% to $318.8 million for the First Quarter 2026 compared to $309.8 million for the prior year period. Gross margin improved 90 basis points to 33.9%, driven by higher price realization and continued benefits from commercial initiatives, partially offset by freight and distribution costs as well as deflation in certain commodity products.

Selling, general and administrative expenses (“SG&A”) for the First Quarter 2026 increased to $349.9 million from $343.2 million for the prior year period. SG&A as a percentage of Net sales increased 70 basis points to 37.2% due primarily to the decrease in Organic Daily Sales during the quarter. SG&A in the Base Business on an adjusted basis was flat for the first quarter compared to the prior year period.

1

Net loss attributable to SiteOne for the First Quarter 2026 was $26.6 million, compared to $27.3 million for the prior year period, reflecting higher gross margin, partially offset by lower sales volume and higher SG&A.

Adjusted EBITDA1 for the First Quarter 2026 increased 14% to $25.5 million, compared to $22.4 million for the prior year period. Adjusted EBITDA margin improved 30 basis points to 2.7%.

Net debt, calculated as long-term debt (net of issuance costs and discounts) plus finance leases, net of Cash and cash equivalents on our balance sheet as of March 29, 2026, was $584.5 million compared to $580.4 million as of March 30, 2025. Net debt to Adjusted EBITDA1 for the last twelve months was 1.4 times compared to 1.5 times for the prior year period.

As of March 29, 2026, Cash and cash equivalents were $84.0 million and available capacity under the ABL Facility was $418.1 million.

1.Adjusted EBITDA includes contribution from non-controlling interest of $0.7 million for the First Quarter 2026.

Outlook

“We achieved 3% growth in pricing during the quarter, and we expect overall prices in 2026 to increase 2% to 3% for the full year,” Doug Black continued. “Due to unfavorable weather, the Spring selling season started later this year than in 2025 and we have seen improved sales volume in April so far. In terms of end markets, we believe that the recent increase in macroeconomic uncertainty is negatively affecting the already weak new residential construction and the more resilient repair and upgrade end markets, more than offsetting maintenance growth and solid demand in new commer

false 0001650729

0001650729

2026-02-11 2026-02-11

iso4217:USD

xbrli:shares

iso4217:USD

xbrli:shares

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): February 11, 2026

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 February 11, 2026, SiteOne Landscape Supply, Inc. issued a press release announcing its results of operations for the fourth quarter and full fiscal year ended December 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 February 11, 2026

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/ Eric J. Elema

Eric J. Elema

Executive Vice President, Chief Financial Officer and Assistant Secretary

Date: February 11, 2026

EXHIBIT INDEX TO CURRENT REPORT ON FORM 8-K

Dated February 11, 2026

99.1 Press Release dated February 11, 2026