DOUG BLACK - 25 Jul 2025 Form 4 Insider Report for SiteOne Landscape Supply, Inc. (SITE)

Signature
/s/ John Guthrie, attorney-in-fact for Doug Black
Issuer symbol
SITE
Transactions as of
25 Jul 2025
Transactions value $
-$400,330
Form type
4
Filing time
29 Jul 2025, 16:05:18 UTC
Previous filing
14 Jul 2025
Next filing
04 Aug 2025

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
BLACK DOUG CEO, Director MANSELL OVERLOOK, 300 COLONIAL CENTER PARKWAY, SUITE 600, ROSWELL /s/ John Guthrie, attorney-in-fact for Doug Black 29 Jul 2025 0001672083

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction SITE Common Stock Options Exercise $575K +11.1K +1.87% $51.59 608K 25 Jul 2025 Direct
transaction SITE Common Stock Sale -$975K -7.38K -1.21% $132.09 600K 25 Jul 2025 Direct F1

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 Stock Options (right to buy) Options Exercise $0 +11.1K $0.00 0 25 Jul 2025 Common Stock 11.1K $51.59 Direct F2
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Buy Plan / Sale Plan: These are also open market purchases/sales of shares, but in this case the transaction is part of a trading plan. Rule 10b5-1 allows insiders to setup a trading plan to buy/sell stocks over a certain period of time. Since the purchases/sales are predetermined, this protects the insiders from violating insider trading law.

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).

Explanation of Responses:

Id Content
F1 The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 sales plan adopted by the Reporting Person on November 27, 2024.
F2 66,873 options were granted on February 6, 2019, and vested and became exercisable ratably in four installments on each anniversary of February 6, 2019. Prior to the transactions reported on this Form 4, 11,146 of these options that remain outstanding had vested.