Initial Statement of Beneficial Ownership (3)

FORM 3	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES	OMB APPROVAL OMB Number: 3235-0104 Estimated average burden hours per response... 0.5
	Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934 or Section 30(h) of the Investment Company Act of 1940

1. Name and Address of Reporting Person ^*

Versaggi Shannon

2. Date of Event Requiring Statement (MM/DD/YYYY) 5/11/2023

3. Issuer Name and Ticker or Trading Symbol

SiteOne Landscape Supply, Inc. [SITE]

(Last) (First) (Middle)

MANSELL OVERLOOK, 300 COLONIAL CENTER PARKWAY, SUITE 600

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

_____ Director _____ 10% Owner
___X___ Officer (give title below) _____ Other (specify below)
SVP Marketing /

(Street)

ROSWELL, GA 30076

(City) (State) (Zip)

5. If Amendment, Date Original Filed(MM/DD/YYYY)

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 Beneficially Owned
1.Title of Security (Instr. 4)	2. Amount of Securities Beneficially Owned (Instr. 4)	3. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	4. Nature of Indirect Beneficial Ownership (Instr. 5)
Common Stock	2110	D

*Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)*
1. Title of Derivate Security (Instr. 4)	2. Date Exercisable and Expiration Date (MM/DD/YYYY)		3. Title and Amount of Securities Underlying Derivative Security (Instr. 4)		4. Conversion or Exercise Price of Derivative Security	5. Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr. 5)	6. Nature of Indirect Beneficial Ownership (Instr. 5)
1. Title of Derivate Security (Instr. 4)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares	4. Conversion or Exercise Price of Derivative Security		6. Nature of Indirect Beneficial Ownership (Instr. 5)
Restricted Share Units	⁽¹⁾	⁽¹⁾	Common Stock	591	⁽⁶⁾	D
Restricted Share Units	⁽²⁾	⁽²⁾	Common Stock	236	⁽⁶⁾	D
Restricted Share Units	⁽³⁾	⁽³⁾	Common Stock	451	⁽⁶⁾	D
Restricted Share Units	⁽⁴⁾	⁽⁴⁾	Common Stock	697	⁽⁶⁾	D
Restricted Share Units	⁽⁵⁾	⁽⁵⁾	Common Stock	1339	⁽⁶⁾	D
Stock Options (Right to Buy)	⁽⁷⁾	⁽⁷⁾	Common Stock	5903	⁽⁷⁾	D
Stock Options (Right to Buy)	⁽⁸⁾	⁽⁸⁾	Common Stock	7094	⁽⁸⁾	D
Stock Options (Right to Buy)	⁽⁹⁾	⁽⁹⁾	Common Stock	3114	⁽⁹⁾	D
Stock Options (Right to Buy)	⁽¹⁰⁾	⁽¹⁰⁾	Common Stock	2963	⁽¹⁰⁾	D
Stock Options (Right to Buy)	⁽¹¹⁾	⁽¹¹⁾	Common Stock	2811	⁽¹¹⁾	D

Explanation of Responses:
(1)	On February 17, 2020, the Reporting Person was granted 2,364 restricted stock units ("RSUs"), vesting in four equal annual installments beginning on February 17, 2021, subject to the Reporting Person's continued employment. Prior to the filing of this Form 3, 1,773 of these RSUs had vested.
(2)	On February 17, 2020, the Reporting Person was granted 945 RSUs, vesting in four equal annual installments beginning on February 17, 2021, subject to the Reporting Person's continued employment. Prior to the filing of this Form 3, 709 of these RSUs had vested.
(3)	On February 11, 2021, the Reporting Person was granted 902 RSUs, vesting in four equal annual installments beginning on February 11, 2022, subject to the Reporting Person's continued employment. Prior to the filing of this Form 3, 451 of these RSUs had vested.
(4)	On February 10, 2022, the Reporting Person was granted 929 RSUs, vesting in four equal annual installments beginning on February 10, 2023, subject to the Reporting Person's continued employment. Prior to the filing of this Form 3, 232 of these RSUs had vested.
(5)	On February 9, 2023, the Reporting Person was granted 1,339 RSUs, vesting in four equal annual installments beginning on February 9, 2024, subject to the Reporting Person's continued employment. Prior to the filing of this Form 3, none of these RSUs had vested.
(6)	RSUs convert into shares of Common Stock upon vesting on a one-for-one basis.
(7)	5,903 options were granted on February 17, 2020, and vest and become exercisable ratably in four installments on each anniversary of February 17, 2020, subject to the Reporting Person's continued employment. Prior to the filing of this Form 3, 4,427 of these options that remain outstanding had vested.
(8)	7,094 options were granted on February 17, 2020, and vest and become exercisable ratably in four installments on each anniversary of February 17, 2020, subject to the Reporting Person's continued employment. Prior to the filing of this Form 3, 5,321 of these options that remain outstanding had vested.
(9)	3,114 options were granted on February 11, 2021, and vest and become exercisable ratably in four installments on each anniversary of February 11, 2021, subject to the Reporting Person's continued employment. Prior to the filing of this Form 3, 1,557 of these options that remain outstanding had vested.
(10)	2,963 options were granted on February 10, 2022, and vest and become exercisable ratably in four installments on each anniversary of February 10, 2022, subject to the Reporting Person's continued employment. Prior to the filing of this Form 3, 741 of these options that remain outstanding had vested.
(11)	2,811 options were granted on February 9, 2023, and vest and become exercisable ratably in four installments on each anniversary of February 9, 2023, subject to the Reporting Person's continued employment. Prior to the filing of this Form 3, none of these options that remain outstanding had vested.

Reporting Owners
Reporting Owner Name / Address	Relationships
Reporting Owner Name / Address	Director	10% Owner	Officer	Other
Versaggi Shannon MANSELL OVERLOOK 300 COLONIAL CENTER PARKWAY, SUITE 600 ROSWELL, GA 30076			SVP Marketing

Signatures
/s/ Briley Brisendine, Attorney-in-fact for Shannon Versaggi		5/15/2023
^**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 5(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 control number.