DOUG BLACK - 10 Feb 2026 Form 4 Insider Report for SiteOne Landscape Supply, Inc. (SITE)

Signature
/s/ Travis Jackson, Attorney-in-fact for Doug Black
Issuer symbol
SITE
Transactions as of
10 Feb 2026
Net transactions value
-$104,444
Form type
4
Filing time
12 Feb 2026, 16:05:09 UTC
Previous filing
11 Feb 2026
Next filing
17 Feb 2026

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
BLACK DOUG CEO, Director MANSELL OVERLOOK, 300 COLONIAL CENTER PARKWAY, SUITE 600, ROSWELL /s/ Travis Jackson, Attorney-in-fact for Doug Black 12 Feb 2026 0001672083

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction SITE Common Stock Options Exercise +1,579 +0.32% 492,863 10 Feb 2026 Direct F1
transaction SITE Common Stock Tax liability $104,444 -702 -0.14% $148.78 492,161 10 Feb 2026 Direct
holding SITE Common Stock 3,591 10 Feb 2026 By Family Trust F2
holding SITE Common Stock 93,675 10 Feb 2026 By SLAT

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Underlying Class Amount Exercise Price Ownership Footnotes
transaction SITE Restricted Stock Units Options Exercise $0 -1,579 -100% $0.000000 0 10 Feb 2026 Common Stock 1,579 Direct F1, F3
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 Filed to report vesting of Restricted Stock Units ("RSUs"). RSUs convert into common stock on a one-for-one basis.
F2 Reflects indirect ownership by a family trust for which the Reporting Person's spouse serves as trustee.
F3 On February 10, 2022, the Reporting Person was granted 6,317 RSUs, vesting in four equal annual installments beginning on February 10, 2023, subject to the Reporting Person's continued employment.