SiteOne Landscape Supply, Inc. — Insider Transactions
Form 4 filings by directors, officers, and 10%+ shareholders
SEC rules require corporate insiders — including directors, executive officers, and any shareholder owning more than 10% of a company's shares — to report changes in their ownership within two business days of a transaction. These disclosures are filed as Form 4. Open-market purchases (code P) are generally considered the most meaningful signal, as insiders are spending their own money.
| Insider | Title | Type | Shares | Price | Value | Owns After | Date |
|---|---|---|---|---|---|---|---|
| Jackson Travis Ryan | General Counsel & Secretary | Tax Withholding | 96 | $133.15 | $12,782 | 234 | Dec 2, 2025 |
| GUTHRIE JOHN T | EVP, CFO and Assistant Sec. | Sale | 1,915 | $134.83 | $258,199 | 13,569 | Nov 26, 2025 |
| GUTHRIE JOHN T | EVP, CFO and Assistant Sec. | Gift | 230 | — | — | 15,714 | Nov 20, 2025 |
| BLACK DOUG | CEO | Gift | 8,000 | — | — | 485,180 | Nov 4, 2025 |
| BLACK DOUG | CEO | Gift | 3,591 | — | — | 3,591 | Sep 3, 2025 |
| BLACK DOUG | CEO | Gift | 93,675 | — | — | 496,771 | Aug 29, 2025 |
| Diaz Fred M | — | Sale | 865 | $145.07 | $125,486 | 11,267 | Aug 29, 2025 |
| BLACK DOUG | CEO | Gift | 10,000 | — | — | 590,446 | Aug 1, 2025 |
| BLACK DOUG | CEO | Sale | 7,384 | $132.09 | $975,353 | 600,446 | Jul 25, 2025 |
| BLACK DOUG | CEO | Sale | 29,760 | $129.28 | $3,847,373 | 596,684 | Jul 11, 2025 |
| Ketter Joseph | EVP, Human Resources | Sale | 39,640 | $126.28 | $5,005,739 | 13,663 | Jul 1, 2025 |
| Dunbar Webster Roy | — | Award / Grant | 1,125 | — | — | 10,485 | May 14, 2025 |
| Douglas William W III | — | Award / Grant | 1,125 | — | — | 17,934 | May 14, 2025 |
| WYSZOMIERSKI JACK L | — | Award / Grant | 1,125 | — | — | 17,934 | May 14, 2025 |
| Sansone Judith S | — | Award / Grant | 1,125 | — | — | 1,990 | May 14, 2025 |
| Isbell Jeri L | — | Option Exercise | 865 | — | — | 9,439 | May 7, 2025 |
| Diaz Fred M | — | Option Exercise | 865 | — | — | 12,132 | May 7, 2025 |
| Drake Larisa | — | Option Exercise | 865 | — | — | 6,188 | May 7, 2025 |
| BLACK DOUG | CEO | Option Exercise | 11,145 | $51.59 | $574,971 | 589,248 | Feb 26, 2025 |
| Salmon Scott | EVP, Strategy & Development | Tax Withholding | 105 | $133.16 | $13,982 | 12,475 | Feb 11, 2025 |
| Ketter Joseph | EVP, Human Resources | Option Exercise | 238 | — | — | 13,785 | Feb 11, 2025 |
| GUTHRIE JOHN T | EVP, CFO and Assistant Sec. | Option Exercise | 288 | — | — | 16,212 | Feb 11, 2025 |
| Brisendine L Briley Jr | EVP, General Counsel & Sec. | Option Exercise | 313 | — | — | 11,309 | Feb 11, 2025 |
| BLACK DOUG | CEO | Tax Withholding | 551 | $133.16 | $73,371 | 578,103 | Feb 11, 2025 |
| Versaggi Shannon | EVP Mktg, Cat. Mgmt. & Pricing | Tax Withholding | 80 | $133.16 | $10,653 | 6,078 | Feb 11, 2025 |
| Versaggi Shannon | EVP Mktg, Cat. Mgmt. & Pricing | Tax Withholding | 88 | $134.08 | $11,799 | 5,933 | Feb 10, 2025 |
| Salmon Scott | EVP, Strategy & Development | Tax Withholding | 107 | $134.08 | $14,347 | 12,304 | Feb 10, 2025 |
| Ketter Joseph | EVP, Human Resources | Option Exercise | 255 | — | — | 13,678 | Feb 10, 2025 |
| GUTHRIE JOHN T | EVP, CFO and Assistant Sec. | Tax Withholding | 303 | $134.08 | $40,626 | 15,924 | Feb 10, 2025 |
| Brisendine L Briley Jr | EVP, General Counsel & Sec. | Option Exercise | 325 | — | — | 11,135 | Feb 10, 2025 |
| BLACK DOUG | CEO | Tax Withholding | 494 | $134.08 | $66,236 | 577,150 | Feb 10, 2025 |
| Brisendine L Briley Jr | EVP, General Counsel & Sec. | Option Exercise | 419 | — | — | 11,002 | Feb 9, 2025 |
| BLACK DOUG | CEO | Tax Withholding | 848 | $133.13 | $112,894 | 574,607 | Feb 9, 2025 |
| GUTHRIE JOHN T | EVP, CFO and Assistant Sec. | Option Exercise | 615 | — | — | 16,367 | Feb 9, 2025 |
| Ketter Joseph | EVP, Human Resources | Tax Withholding | 146 | $133.13 | $19,437 | 13,423 | Feb 9, 2025 |
| Salmon Scott | EVP, Strategy & Development | Tax Withholding | 156 | $133.13 | $20,768 | 12,132 | Feb 7, 2025 |
| Versaggi Shannon | EVP Mktg, Cat. Mgmt. & Pricing | Option Exercise | 335 | — | — | 5,926 | Feb 7, 2025 |
| Ketter Joseph | EVP, Human Resources | Sale | 6,500 | $142.20 | $924,300 | 12,942 | Nov 21, 2024 |
| BLACK DOUG | CEO | Gift | 6,000 | — | — | 572,361 | Nov 5, 2024 |
| Diaz Fred M | — | Sale | 878 | $129.04 | $113,297 | 11,267 | Aug 5, 2024 |
| BLACK DOUG | CEO | Option Exercise | 1,629 | $38.73 | $63,091 | 579,990 | May 15, 2024 |
| WYSZOMIERSKI JACK L | — | Award / Grant | 865 | — | — | 16,809 | May 7, 2024 |
| Dunbar Webster Roy | — | Award / Grant | 865 | — | — | 9,360 | May 7, 2024 |
| Douglas William W III | — | Award / Grant | 865 | — | — | 16,809 | May 7, 2024 |
| Sansone Judith S | — | Award / Grant | 865 | — | — | 865 | May 7, 2024 |
| Diaz Fred M | — | Option Exercise | 878 | — | — | 12,145 | May 6, 2024 |
| Drake Larisa | — | Option Exercise | 878 | — | — | 5,323 | May 6, 2024 |
| GUTHRIE JOHN T | EVP, CFO and Assistant Sec. | Tax Withholding | 1,002 | $158.12 | $158,436 | 15,752 | May 6, 2024 |
| Versaggi Shannon | SVP Mktg, Cat. Mgmt. & Pricing | Award / Grant | 1,007 | — | — | 5,586 | May 6, 2024 |
| Brisendine L Briley Jr | EVP, General Counsel & Sec. | Award / Grant | 1,398 | — | — | 10,682 | May 6, 2024 |