X0609 4 2026-05-12 0 0001650729 SiteOne Landscape Supply, Inc. SITE 0001574188 Drake Larisa false MANSELL OVERLOOK 300 COLONIAL CENTER PARKWAY, SUITE 600 ROSWELL GA 30076 1 0 0 0 0 Common Stock 2026-05-12 4 M 0 1125 A 7313 D Restricted Stock Units 2026-05-12 4 M 0 1125 0.00 D Common Stock 1125 0 D Restricted Stock Units 2026-05-13 4 A 0 1186 0.00 A Common Stock 1186 1186 D 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. Exhibit 24 - Power of Attorney /s/ Travis Jackson, Attorney-in-fact for Larisa Drake 2026-05-14