SiteOne EVP Ketter vests 644 RSUs, withholds tax

SiteOne Landscape Supply EVP, Human Resources Joseph Ketter reported vesting of Restricted Stock Units.

Rhea-AI Filing Summary

SiteOne Landscape Supply EVP, Human Resources Joseph Ketter reported vesting of Restricted Stock Units. On February 5, 2026, 644 RSUs converted into 644 shares of common stock at $0.00 per share as part of an RSU award granted on February 5, 2025.

Of these shares, 278 were withheld to satisfy tax obligations at a price of $148.0300 per share. After these transactions, Ketter directly holds 14,029 shares of SiteOne Landscape Supply common stock. The 2025 RSU grant totals 2,576 units, vesting in four equal annual installments beginning February 5, 2026.

Insider Trade Summary

644 shares exercised/converted

Exercise 3 txns

Insider Ketter Joseph

Role EVP, Human Resources

Type	Security	Shares	Price	Value
Exercise	Restricted Stock Units	644	$0.00	$0.00
Exercise	Common Stock	644	$0.00	$0.00
Exercise Price or Tax Liability	Common Stock	278	$148.03	$41K

Holdings After Transaction: Restricted Stock Units — 1,932 contracts (Direct); Common Stock — 14,029 shares (Direct)

Footnotes (2)

1. F1. Filed to report vesting of Restricted Stock Units ("RSUs"). RSUs convert into common stock on a one-for-one basis.
2. F2. On February 5, 2025, the Reporting Person was granted 2,576 RSUs, vesting in four equal annual installments beginning on February 5, 2026, subject to the Reporting Person's continued employment.

Key Figures

RSUs vested: 644 units Shares withheld for taxes: 278 shares Tax withholding price: $148.0300 per share +2 more

5 metrics

RSUs vested 644 units Restricted Stock Units converting into common stock on February 5, 2026

Shares withheld for taxes 278 shares Common shares withheld in a tax-withholding disposition at $148.0300 per share

Tax withholding price $148.0300 per share Per-share value used for the 278-share tax-withholding transaction

Post-transaction common stock holdings 14,029 shares Direct common stock ownership after reported RSU vesting and tax withholding

RSU grant size 2,576 units RSUs granted on February 5, 2025, vesting in four equal annual installments

Key Terms

Restricted Stock Units ("RSUs"), tax-withholding disposition, vests in four equal annual installments

3 terms

Restricted Stock Units ("RSUs") financial

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

Restricted stock units (RSUs) are a company promise to give an employee shares of stock (or cash equivalent) in the future, but only after certain conditions—usually staying with the company for a set time or hitting performance goals—are met. Investors watch RSUs because when they vest they increase the number of shares outstanding and can lead insiders to sell shares, affecting share price, company dilution and the true cost of employee pay.

tax-withholding disposition financial

"transaction_action":"tax-withholding disposition""

A tax-withholding disposition is an event or transaction—such as selling or transferring securities, exercising options, or receiving compensation—that triggers a requirement to hold back part of the payment and remit it to tax authorities. It matters to investors because it reduces the cash they receive immediately and can change the timing and amount of taxable income, like a cashier taking a portion of your sale proceeds to pay taxes before you get the rest.

vests in four equal annual installments financial

"vesting in four equal annual installments beginning on February 5, 2026"

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What RSU vesting did SITE executive Joseph Ketter report?

Joseph Ketter reported 644 RSUs vesting into an equal number of SiteOne common shares on February 5, 2026. These RSUs come from a 2,576-unit award granted on February 5, 2025, scheduled to vest in four equal annual installments.

How many SiteOne (SITE) shares does Joseph Ketter own after this transaction?

After the reported RSU vesting and tax withholding, Joseph Ketter directly owns 14,029 shares of SiteOne common stock. This figure reflects his post-transaction holdings as reported in the most recent ownership data.

How many SITE shares were withheld for taxes in Joseph Ketter’s RSU vesting?

In connection with the RSU vesting, 278 shares of SiteOne common stock were withheld to cover tax obligations. The withholding was valued at $148.0300 per share, consistent with a tax-withholding disposition transaction.

What are the terms of Joseph Ketter’s 2,576-unit RSU grant at SITE?

Joseph Ketter received a 2,576 RSU grant on February 5, 2025, vesting in four equal annual installments. The first installment is scheduled to vest on February 5, 2026, with each unit converting into one share of SiteOne common stock.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Accepted by SEC EDGAR 02/09/2026 - 05:17 PM Learn about SEC filing dates

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^*

Ketter Joseph

(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)

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	EVP, Human Resources

3. Date of Earliest Transaction (Month/Day/Year)
02/05/2026

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
Common Stock	02/05/2026		M		644	A	(1)	14,307	D
Common Stock	02/05/2026		F		278	D	$148.03	14,029	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)	02/05/2026		M			644	(2)	(2)	Common Stock	644	$0	1,932	D

Explanation of Responses:

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

2. On February 5, 2025, the Reporting Person was granted 2,576 RSUs, vesting in four equal annual installments beginning on February 5, 2026, subject to the Reporting Person's continued employment.

	/s/ Travis Jackson, Attorney-in-fact for Joseph Ketter	02/09/2026
	** 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.