As of June 06, 2026, SiteOne Landscape Supply's top three insider holders are Doug Black (Ceo, 495.75K shares), William W Iii Douglas (Director, 17.93K shares), Joseph Ketter (Evp, Human Resources, 14.64K shares).
| Holder | Position | Shares (Direct) | Shares (Indirect) | Report Date |
|---|---|---|---|---|
| Jeri L Isbell | - | 9,439 | 0 | 09 May, 2025 |
| William W Iii Douglas | - | 17,934 | 0 | 16 May, 2025 |
| Webster Roy Dunbar | - | 10,485 | 0 | 16 May, 2025 |
| Larisa Drake | - | 6,188 | 0 | 09 May, 2025 |
| Doug Black | Ceo | 482,161 | 13,591 | 17 Feb, 2026 |
| John T Guthrie | Evp, Cfo And Assistant Sec. | 13,569 | 0 | 01 Dec, 2025 |
| L Briley Jr Brisendine | Evp, General Counsel Sec. | 11,175 | 0 | 13 Feb, 2025 |
| Joseph Ketter | Evp, Human Resources | 14,636 | 0 | 12 Feb, 2026 |
| Fred M Diaz | - | 11,267 | 0 | 03 Sep, 2025 |
| Scott Salmon | Evp, Strategy Development | 13,705 | 0 | 12 Feb, 2026 |
| Greg Weller | Evp Of Operations | 10,260 | 0 | 17 Sep, 2021 |
| Judith S Sansone | - | 1,990 | 0 | 16 May, 2025 |
| Shannon Versaggi | Evp Mktg, Cat. Mgmt. Pricing | 7,143 | 0 | 12 Feb, 2026 |
| Travis Ryan Jackson | General Counsel Secretary | 475 | 0 | 09 Feb, 2026 |
| Eric J Elema | Evp, Cfo And Assistant Sec. | 2,911 | 0 | 17 Feb, 2026 |
* Please note that the shares above only reflect shares from the fund portfolio and the institutional portfolio. Shares from the personal portfolio are excluded from this Institutional Ownership Page. See these insiders' latest transactions here on Insider Page.
| Transaction Date | Insider Name | Security Class | Transaction Type | Shares Traded | Price | Shares Remaining | Ownership | Code |
|---|---|---|---|---|---|---|---|---|
| 13 Feb, 2026 | Eric J Elema | Common Stock | A | 3,755 | $26.67 | 4,676 | D | M |
| 13 Feb, 2026 | Doug Black | Common Stock | D | 10,000 | $0.00 | 482,161 | D | G |
| 13 Feb, 2026 | Eric J Elema | Common Stock | D | 1,765 | $158.01 | 2,911 | D | S |
| 13 Feb, 2026 | Doug Black | Common Stock | A | 10,000 | $0.00 | 13,591 | I | G |
| 13 Feb, 2026 | Eric J Elema | Stock Options (right to buy) | A | 3,755 | $0.00 | 0 | D | M |
| 10 Feb, 2026 | Shannon Versaggi | Common Stock | A | 232 | - | 7,226 | D | M |
| 10 Feb, 2026 | Shannon Versaggi | Common Stock | A | 232 | - | 7,226 | D | M |
| 10 Feb, 2026 | Scott Salmon | Common Stock | A | 278 | - | 13,791 | D | M |
| 10 Feb, 2026 | Doug Black | Common Stock | A | 1,579 | - | 492,863 | D | M |
| 10 Feb, 2026 | Joseph Ketter | Common Stock | A | 255 | - | 14,766 | D | M |
| 10 Feb, 2026 | Eric J Elema | Common Stock | A | 72 | - | 946 | D | M |
| 10 Feb, 2026 | Shannon Versaggi | Common Stock | D | 83 | $148.78 | 7,143 | D | F |
| 10 Feb, 2026 | Joseph Ketter | Common Stock | D | 130 | $148.78 | 14,636 | D | F |
| 10 Feb, 2026 | Shannon Versaggi | Common Stock | D | 83 | $148.78 | 7,143 | D | F |
| 10 Feb, 2026 | Eric J Elema | Common Stock | D | 25 | $148.78 | 921 | D | F |
| 10 Feb, 2026 | Doug Black | Common Stock | D | 702 | $148.78 | 492,161 | D | F |
| 10 Feb, 2026 | Scott Salmon | Common Stock | D | 86 | $148.78 | 13,705 | D | F |
| 10 Feb, 2026 | Eric J Elema | Restricted Stock Units | D | 72 | $0.00 | 0 | D | M |
| 10 Feb, 2026 | Shannon Versaggi | Restricted Stock Units | D | 232 | $0.00 | 0 | D | M |
| 10 Feb, 2026 | Joseph Ketter | Restricted Stock Units | D | 255 | $0.00 | 0 | D | M |