SiteOne (SITE) director converts 878 RSUs, raising holdings to 10,317 shares

Rhea-AI Filing Summary

SiteOne Landscape Supply, Inc. director Jeri L. Isbell settled previously granted Restricted Stock Units into common shares. On May 1, 2026, 878 RSUs converted into 878 shares of common stock at no cash exercise price, increasing Isbell’s direct holdings to 10,317 common shares.

Insider Trade Summary

878 shares exercised/converted

Mixed 2 txns

Insider Isbell Jeri L

Role null

Type	Security	Shares	Price	Value
Exercise	Restricted Stock Units	878	$0.00	--
Exercise	Common Stock	878	$0.00	--

Holdings After Transaction: Restricted Stock Units — 0 shares (Direct, null); Common Stock — 10,317 shares (Direct, null)

Footnotes (1)

1. Filed to report settlement of Restricted Stock Units ("RSUs"). RSUs convert into common stock on a one-for-one basis. On May 11, 2023, the Reporting Person was granted 878 RSUs, vesting upon the earlier of (i) the day preceding the Company's next annual meeting of stockholders and (ii) the first anniversary of May 11, 2024, in each case subject to the Reporting Person's continued service as a non-employee director, and settling on May 1, 2026.

Key Figures

RSUs settled: 878 units Shares received: 878 shares Post-transaction holdings: 10,317 shares +1 more

4 metrics

RSUs settled 878 units Restricted Stock Units converted to common stock on May 1, 2026

Shares received 878 shares Common stock issued on RSU conversion, one-for-one basis

Post-transaction holdings 10,317 shares SiteOne common stock held directly by Jeri L. Isbell after transaction

Exercise price $0.00 per share RSUs converted to common stock at no cash exercise price

Key Terms

Restricted Stock Units, RSUs, non-employee director, Exercise or conversion of derivative security

4 terms

Restricted Stock Units financial

"Filed to report settlement of Restricted Stock Units ("RSUs")."

Restricted stock units are a type of company reward where employees are promised shares of stock, but they only fully own these shares after meeting certain conditions, like staying with the company for a set time. They matter because they can become valuable assets and are often used to motivate employees to help the company succeed.

RSUs financial

"RSUs convert into common stock on a one-for-one basis."

RSUs, or restricted stock units, are a form of company shares given to employees as part of their compensation. They are typically awarded with certain restrictions, such as a waiting period before they can be fully owned or sold, similar to earning a gift that becomes fully yours over time. For investors, RSUs can impact a company's stock offerings and reflect how much the company relies on stock-based incentives to attract and retain talent.

non-employee director financial

"subject to the Reporting Person's continued service as a non-employee director"

Exercise or conversion of derivative security financial

"transaction_code_description": "Exercise or conversion of derivative security""

Form 4 Insider Transactions: What Each Field Means →

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
Estimated average burden
hours per response:			0.5

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^*

Isbell Jeri L

(Last) (First) (Middle)

MANSELL OVERLOOK

300 COLONIAL CENTER PARKWAY, SUITE 600

(Street)

ROSWELL GEORGIA 30076

(City) (State) (Zip)

UNITED STATES

(Country)

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
	Officer (give title below)		Other (specify below)

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
05/01/2026

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

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

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

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	05/01/2026		M		878	A	(1)	10,317	D

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)	05/01/2026		M			878	(2)	(2)	Common Stock	878	$0.00	0	D

Explanation of Responses:

1. Filed to report settlement of Restricted Stock Units ("RSUs"). RSUs convert into common stock on a one-for-one basis.

2. On May 11, 2023, the Reporting Person was granted 878 RSUs, vesting upon the earlier of (i) the day preceding the Company's next annual meeting of stockholders and (ii) the first anniversary of May 11, 2024, in each case subject to the Reporting Person's continued service as a non-employee director, and settling on May 1, 2026.

Remarks:

Exhibit 24 - Power of Attorney

	/s/ Travis Jackson, Attorney-in-fact for Jeri L. Isbell	05/05/2026
	** 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.
* Form 4: SEC 1474 (03-26)

FAQ

What insider transaction did SITE director Jeri L. Isbell report?

Jeri L. Isbell reported the settlement of previously granted Restricted Stock Units into common stock. On May 1, 2026, 878 RSUs converted on a one-for-one basis into 878 SITE common shares, increasing her direct ownership position in the company.

How many SiteOne (SITE) shares did the RSU settlement add for Jeri L. Isbell?

The RSU settlement added 878 shares of SiteOne common stock to Jeri L. Isbell’s holdings. These shares resulted from 878 Restricted Stock Units converting into common stock on a one-for-one basis as part of her compensation as a non-employee director.

What are the post-transaction holdings of Jeri L. Isbell in SITE common stock?

After the RSU settlement, Jeri L. Isbell directly holds 10,317 shares of SiteOne common stock. This total reflects the addition of 878 shares received from the conversion of Restricted Stock Units reported in the Form 4 insider transaction filing.

Were any SiteOne (SITE) shares sold in this Form 4 transaction?

No, the Form 4 shows no sales of SiteOne shares. The reported activity reflects an exercise or conversion of derivative securities, where 878 Restricted Stock Units settled into 878 common shares, increasing Jeri L. Isbell’s direct holdings without an open-market sale.

What were the terms of the 878 RSUs granted to Jeri L. Isbell at SiteOne (SITE)?

The 878 RSUs were granted on May 11, 2023, vesting upon the earlier of the day before the next annual stockholders’ meeting or the first anniversary of May 11, 2024, subject to continued service, and scheduled to settle into common stock on May 1, 2026.