[Form 4] SiteOne Landscape Supply, Inc. Insider Trading Activity

Rhea-AI Filing Summary

Doug Black, CEO and a director of SiteOne Landscape Supply, Inc. (SITE), reported a transfer of 3,591 shares on 09/03/2025. The Form 4 shows those 3,591 shares were disposed of from direct ownership and simultaneously acquired as indirect ownership by a family trust for which Mr. Black serves as trustee, at a price of $0 (internal transfer). The filing also lists existing indirect ownership of 93,675 shares via a SLAT. After the reported transaction Mr. Black continued to hold 493,180 shares directly and 3,591 shares indirectly through the family trust, with the SLAT interest separately noted.

Positive

• Transaction disclosed promptly on a Form 4 with clear explanation of the transfer to a family trust
• Beneficial ownership retained through indirect holdings (transfer did not remove economic exposure)

Negative

• None.

Insights

Financial Analyst

TL;DR: Small insider transfer to a family trust; no change in aggregate economic exposure disclosed.

The Form 4 documents an internal reclassification of 3,591 shares on 09/03/2025 from direct to indirect ownership via a family trust where the reporting person is trustee. The transaction code G(1) and an acquisition price of $0 indicate this was a non-market transfer rather than a sale. Reported direct holdings remain at 493,180 shares and indirect holdings include the transferred 3,591 shares plus a separate 93,675-share SLAT position. For investors, this is a governance/estate-planning move with no disclosed change in voting or economic exposure.

Corporate Governance Expert

TL;DR: Routine insider reclassification to a trust; disclosure aligns with Section 16 requirements.

The filing shows the reporting person acting as trustee for a family trust, with an explanatory note that the transaction "reflects the transfer of 3,591 shares to a family trust." The signature is provided by an attorney-in-fact, consistent with authorized filing practice. This appears to be an internal estate-planning or holding-structure adjustment rather than a material disposition; the Form 4 properly records both the reduction in direct holdings and the simultaneous indirect acquisition.

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
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Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

BLACK DOUG

(Last) (First) (Middle)

MANSELL OVERLOOK

300 COLONIAL CENTER PARKWAY, SUITE 600

(Street)

ROSWELL GA 30076

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
SiteOne Landscape Supply, Inc. [ SITE ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

X	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	CEO

3. Date of Earliest Transaction (Month/Day/Year)
09/03/2025

4. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Common Stock	09/03/2025		G(1)		3,591	D	$0	493,180	D
Common Stock	09/03/2025		G(1)		3,591	A	$0	3,591	I	By Family Trust(2)
Common Stock								93,675	I	By SLAT

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

1. Reflects the transfer of 3,591 shares to a family trust.

2. Reflects indirect ownership by a family trust for which the Reporting Person serves as trustee.

	/s/ John Guthrie, attorney-in-fact for Doug Black	09/05/2025
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.

FAQ

What did SITE insider Doug Black report on Form 4?

The filing reports a transfer of 3,591 shares on 09/03/2025 from direct ownership to indirect ownership via a family trust.

Did Doug Black sell any SITE shares in this filing?

No. The $0 price and the simultaneous disposal and acquisition lines indicate an internal transfer to a family trust, not a market sale.

How many SITE shares does Doug Black still hold directly after the transfer?

The Form 4 shows 493,180 shares held directly following the reported transaction.

What is the nature of the indirect ownership disclosed?

The filing states the 3,591 shares were transferred to a family trust for which the reporting person serves as trustee; it also lists 93,675 shares held indirectly via a SLAT.

Who signed the Form 4 for Doug Black?

The form was signed by John Guthrie, attorney-in-fact for Doug Black on 09/05/2025.