Kayne Anderson boosts disclosure of 6% SiteOne (SITE) stake in 13G/A

Rhea-AI Filing Summary

Kayne Anderson Rudnick Investment Management, LLC has filed Amendment No. 8 to a Schedule 13G/A reporting its beneficial ownership in SiteOne Landscape Supply Inc. The firm reports beneficial ownership of 2,668,250 SiteOne Landscape Supply ordinary shares, representing 6.0% of the class as of the stated event date.

The filer reports sole voting power over 2,032,552 shares and shared voting power over 474,545 shares, as well as sole dispositive power over 2,193,705 shares and shared dispositive power over 474,545 shares. The securities are certified as acquired and held in the ordinary course of business, without the purpose or effect of changing or influencing control of SiteOne.

SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

SCHEDULE 13G

UNDER THE SECURITIES EXCHANGE ACT OF 1934

(Amendment No. 8)

SiteOne Landscape Supply Inc

(Name of Issuer)

SiteOne Landscape Supply Ord Shs

(Title of Class of Securities)

82982L103

(CUSIP Number)

12/31/2025

(Date of Event Which Requires Filing of this Statement)

Check the appropriate box to designate the rule pursuant to which this Schedule is filed:

Rule 13d-1(b)

Rule 13d-1(c)

Rule 13d-1(d)

SCHEDULE 13G

CUSIP No. 82982L103

1

Names of Reporting Persons

Kayne Anderson Rudnick Investment Management, LLC

2

Check the appropriate box if a member of a Group (see instructions)

(a)
(b)

3

Sec Use Only

4

Citizenship or Place of Organization

CALIFORNIA

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 2,032,552.00
6	Shared Voting Power 474,545.00
7	Sole Dispositive Power 2,193,705.00
8	Shared Dispositive Power 474,545.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

2,668,250.00

10

Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)

11

Percent of class represented by amount in row (9)

6.0 %

12

Type of Reporting Person (See Instructions)

IA

SCHEDULE 13G

Item 1.
(a)	Name of issuer: SiteOne Landscape Supply Inc
(b)	Address of issuer's principal executive offices: 300 Colonial Center Parkway, Suite 600, Roswell, GA, 30076, US
Item 2.
(a)	Name of person filing: Kayne Anderson Rudnick Investment Management, LLC
(b)	Address or principal business office or, if none, residence: 2000 Avenue of the Stars, Suite 1110, Los Angeles, 90067, CA, United States
(c)	Citizenship: CALIFORNIA
(d)	Title of class of securities: SiteOne Landscape Supply Ord Shs
(e)	CUSIP No.: 82982L103
Item 3.	If this statement is filed pursuant to §§ 240.13d-1(b) or 240.13d-2(b) or (c), check whether the person filing is a:
(a)	Broker or dealer registered under section 15 of the Act (15 U.S.C. 78o);
(b)	Bank as defined in section 3(a)(6) of the Act (15 U.S.C. 78c);
(c)	Insurance company as defined in section 3(a)(19) of the Act (15 U.S.C. 78c);
(d)	Investment company registered under section 8 of the Investment Company Act of 1940 (15 U.S.C. 80a-8);
(e)	An investment adviser in accordance with § 240.13d-1(b)(1)(ii)(E);
(f)	An employee benefit plan or endowment fund in accordance with § 240.13d-1(b)(1)(ii)(F);
(g)	A parent holding company or control person in accordance with § 240.13d-1(b)(1)(ii)(G);
(h)	A savings associations as defined in Section 3(b) of the Federal Deposit Insurance Act (12 U.S.C. 1813);
(i)	A church plan that is excluded from the definition of an investment company under section 3(c)(14) of the Investment Company Act of 1940 (15 U.S.C. 80a-3);
(j)	A non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J). If filing as a non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J), please specify the type of institution:
(k)	Group, in accordance with Rule 240.13d-1(b)(1)(ii)(K).
Item 4.	Ownership
(a)	Amount beneficially owned: 2,668,250
(b)	Percent of class: 6.0 %
(c)	Number of shares as to which the person has:
	(i) Sole power to vote or to direct the vote: 2,032,552
	(ii) Shared power to vote or to direct the vote: 474,545
	(iii) Sole power to dispose or to direct the disposition of: 2,193,705
	(iv) Shared power to dispose or to direct the disposition of: 474,545
Item 5.	Ownership of 5 Percent or Less of a Class.
	Not Applicable
Item 6.	Ownership of more than 5 Percent on Behalf of Another Person.
	Not Applicable
Item 7.	Identification and Classification of the Subsidiary Which Acquired the Security Being Reported on by the Parent Holding Company or Control Person.
	Not Applicable
Item 8.	Identification and Classification of Members of the Group.
	Not Applicable
Item 9.	Notice of Dissolution of Group.
	Not Applicable

Item 10.

Certifications:

By signing below I certify that, to the best of my knowledge and belief, the securities referred to above were acquired and are held in the ordinary course of business and were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer of the securities and were not acquired and are not held in connection with or as a participant in any transaction having that purpose or effect, other than activities solely in connection with a nomination under ?? 240.14a-11.

SIGNATURE

After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.

Kayne Anderson Rudnick Investment Management, LLC

Signature:	/s/Michael Shoemaker
Name/Title:	Chief Compliance Officer
Date:	02/13/2026

FAQ

What ownership stake in SiteOne Landscape Supply (SITE) is reported?

Kayne Anderson Rudnick Investment Management, LLC reports beneficial ownership of 2,668,250 SiteOne Landscape Supply ordinary shares, representing 6.0% of the outstanding class. This disclosure appears in an amended Schedule 13G/A filing identified as Amendment No. 8 for the issuer.

Who is the reporting person in this SiteOne (SITE) Schedule 13G/A?

The reporting person is Kayne Anderson Rudnick Investment Management, LLC, an investment adviser organized in California. It reports its principal business office at 2000 Avenue of the Stars, Suite 1110, Los Angeles, California 90067, in connection with its beneficial ownership of SiteOne Landscape Supply shares.

How much voting power does the filer report over SiteOne (SITE) shares?

The filer reports sole voting power over 2,032,552 SiteOne shares and shared voting power over 474,545 shares. These figures detail how many shares the firm can vote independently versus jointly, helping investors understand the nature of its influence on shareholder decisions.

What dispositive power is reported over SiteOne Landscape Supply (SITE) shares?

Kayne Anderson Rudnick reports sole dispositive power over 2,193,705 SiteOne shares and shared dispositive power over 474,545 shares. Dispositive power describes the authority to sell or otherwise dispose of shares, clarifying how many shares the firm can control for transaction decisions.

Does the filer intend to influence control of SiteOne Landscape Supply (SITE)?

The filing certifies that the securities were acquired and are held in the ordinary course of business, not for the purpose or with the effect of changing or influencing control of SiteOne. It also states they are not held in connection with any transaction aimed at such control.

What type of SEC filing is this for SiteOne Landscape Supply (SITE)?

This is a Schedule 13G/A, specifically Amendment No. 8, relating to SiteOne Landscape Supply ordinary shares. Schedule 13G is a beneficial ownership report typically used by certain institutional investors holding more than 5% of a company’s equity securities under specified conditions.