SiteOne (NYSE: SITE) CEO Doug Black receives 15,880 restricted stock units

Rhea-AI Filing Summary

SiteOne Landscape Supply reported that CEO and director Doug Black received an award of 15,880 Restricted Stock Units on February 4, 2026. These RSUs convert into common stock on a one-for-one basis.

The RSUs will vest and settle into shares of common stock in four equal annual installments beginning on February 4, 2027, conditioned on Black’s continued employment with the company.

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

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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)
02/04/2026

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

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
Restricted Stock Units	(1)	02/04/2026		A		15,880		(2)	(2)	Common Stock	15,880	$0.00	15,880	D

Explanation of Responses:

1. Restricted Stock Units ("RSUs") convert into common stock on a one-for-one basis.

2. The RSUs will vest and settle into shares of common stock in four equal annual installments beginning on February 4, 2027, subject to the Reporting Person's continued employment.

Remarks:

Exhibit 24 - Power of Attorney

	/s/ Travis Jackson, Attorney-in-fact Doug Black	02/06/2026
	** 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 does Doug Black’s latest Form 4 for SITE report?

The Form 4 reports that CEO and director Doug Black received 15,880 Restricted Stock Units on February 4, 2026. These RSUs were acquired at a price of $0.00 per unit and are held directly by him as equity-based compensation.

How many Restricted Stock Units did SITE grant to CEO Doug Black?

Doug Black received 15,880 Restricted Stock Units. Following this transaction, he beneficially owned 15,880 derivative securities of this type. Each RSU represents the right to receive one share of SiteOne Landscape Supply common stock upon settlement, subject to vesting.

What is the vesting schedule for Doug Black’s SITE Restricted Stock Units?

The RSUs vest and settle into common shares in four equal annual installments beginning on February 4, 2027. Vesting is contingent on Doug Black’s continued employment, meaning he must remain with SiteOne Landscape Supply for the units to convert into common stock.

How do Doug Black’s SITE RSUs convert into common stock?

Each Restricted Stock Unit converts into one share of SiteOne Landscape Supply common stock. Conversion occurs as the RSUs vest over time, with four equal annual installments starting February 4, 2027, provided Doug Black continues his employment with the company through each vesting date.

Is Doug Black’s SITE RSU award reported as directly owned?

Yes. The filing lists the 15,880 Restricted Stock Units as directly owned by Doug Black. The ownership form is marked as “D” for direct, and there is no footnote indicating any indirect ownership through another entity or any disclaimer of beneficial ownership.

What role does Doug Black hold at SiteOne Landscape Supply (SITE)?

Doug Black is reported as both a director and an officer of SiteOne Landscape Supply, serving as CEO. His dual role is disclosed in the filing’s relationship section, which identifies him as a director and as the company’s chief executive officer in connection with the RSU grant.