SiteOne (NYSE: SITE) director receives 1,186 RSU grant, 1,125 RSUs vest

Filing Impact

(Neutral)

Filing Sentiment

(Neutral)

Form Type

Rhea-AI Filing Summary

SiteOne Landscape Supply director Fred M. Diaz reported routine equity compensation activity. On May 12, 2026, 1,125 Restricted Stock Units (RSUs) vested and converted into 1,125 shares of common stock on a one-for-one basis. These shares increased his direct common stock holdings to 12,392 shares.

On May 13, 2026, Diaz received a new award of 1,186 RSUs at no cost. According to the terms, these RSUs will vest and settle into common stock upon the earlier of the day before the company’s next annual shareholder meeting or the first anniversary of May 13, 2026, subject to his continued service as a non-employee director.

Insider Trade Summary

1,125 shares exercised/converted

Mixed 3 txns

Insider Diaz Fred M

Role null

Type	Security	Shares	Price	Value
Grant/Award	Restricted Stock Units	1,186	$0.00	--
Exercise	Restricted Stock Units	1,125	$0.00	--
Exercise	Common Stock	1,125	$0.00	--

Holdings After Transaction: Restricted Stock Units — 1,186 shares (Direct, null); Common Stock — 12,392 shares (Direct, null)

Footnotes (1)

Filed to report vesting of Restricted Stock Units ("RSUs"). RSUs convert into common stock on a one-for-one basis. On May 14, 2025, the Reporting Person was granted 1,125 RSUs, vesting and settling upon the earlier of (i) the day preceding the Company's next annual meeting of stockholders and (ii) the first anniversary of May 14, 2025, in each case subject to the Reporting Person's continued service as a non-employee director. RSUs convert into common stock on a one-for-one basis. The RSUs will vest and settle upon the earlier of (i) the day preceding the Company's next annual meeting of stockholders and (ii) the first anniversary of May 13, 2026, in each case subject to the Reporting Person's continued service as a non-employee director.

Key Figures

RSUs vested: 1,125 RSUs New RSU grant: 1,186 RSUs Common shares after transaction: 12,392 shares +1 more

4 metrics

RSUs vested 1,125 RSUs Converted into common stock on May 12, 2026

New RSU grant 1,186 RSUs Awarded May 13, 2026 to non-employee director

Common shares after transaction 12,392 shares Direct holdings following RSU vesting

Derivative exercises 1,125 shares Exercise/conversion of RSUs into common stock

Key Terms

Restricted Stock Units, RSUs, vesting, non-employee director

4 terms

Restricted Stock Units financial

"Filed to report vesting 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.

vesting financial

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

Vesting is the process by which you earn full ownership of something, like company stock or a retirement benefit, over time. It’s like earning the right to keep a gift piece by piece the longer you stay with a company, making sure employees stay committed before they receive all the benefits.

non-employee director financial

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

Form 4 Insider Transactions: What Each Field Means →

05/14/2026 - 07:04 PM

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^*

Diaz Fred M

(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)
05/12/2026

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)
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	Code	V	Amount	(A) or (D)	Price		6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
Common Stock	05/12/2026		M		1,125	A	⁽¹⁾	12,392	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)
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)	Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares	8. Price of Derivative Security (Instr. 5)		10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
Restricted Stock Units	⁽¹⁾	05/12/2026		M			1,125	⁽²⁾	⁽²⁾	Common Stock	1,125	$0.00	0	D
Restricted Stock Units	⁽³⁾	05/13/2026		A		1,186		⁽⁴⁾	⁽⁴⁾	Common Stock	1,186	$0.00	1,186	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 May 14, 2025, the Reporting Person was granted 1,125 RSUs, vesting and settling upon the earlier of (i) the day preceding the Company's next annual meeting of stockholders and (ii) the first anniversary of May 14, 2025, in each case subject to the Reporting Person's continued service as a non-employee director.

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

4. The RSUs will vest and settle upon the earlier of (i) the day preceding the Company's next annual meeting of stockholders and (ii) the first anniversary of May 13, 2026, in each case subject to the Reporting Person's continued service as a non-employee director.

Remarks:

Exhibit 24 - Power of Attorney

	/s/ Travis Jackson, Attorney-in-fact for Fred M. Diaz	05/14/2026
	** 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)

Source: View Original Filing on SEC EDGAR

FAQ

What insider transactions did SiteOne (SITE) director Fred M. Diaz report?

Fred M. Diaz reported vesting of 1,125 RSUs into common stock and a new grant of 1,186 RSUs. Both transactions are equity compensation-related and involve no open-market buying or selling of SiteOne shares.

How many SiteOne (SITE) RSUs vested for director Fred M. Diaz?

1,125 Restricted Stock Units vested for Fred M. Diaz, converting into 1,125 shares of SiteOne common stock on a one-for-one basis. This is a standard RSU settlement tied to his service as a non-employee director.

What new RSU award did SiteOne (SITE) grant to director Fred M. Diaz?

SiteOne granted Fred M. Diaz 1,186 RSUs at no cash cost. These units will vest and settle into common stock upon the earlier of the next annual meeting’s eve or one year after May 13, 2026, contingent on continued board service.

How many SiteOne (SITE) common shares does Fred M. Diaz hold after these transactions?

After these transactions, Fred M. Diaz directly holds 12,392 shares of SiteOne common stock. This reflects the addition of 1,125 shares from vested RSUs, as disclosed in the Form 4 insider filing.

Do the reported SiteOne (SITE) Form 4 transactions involve open-market buying or selling?

No, the transactions involve RSU vesting and a new RSU grant, not open-market trades. The Form 4 shows equity compensation events rather than discretionary purchases or sales in the public market.