🕵️ Siteone Landscape Supply, Inc. ($SITE)
SEC insider & ownership activity, last 12 months · CIK 1650729 · every row links its SEC filing
Over the last 12 months insiders sold $665K against $1.5M of open-market buying. Black Doug bought $1.3M in discretionary trades (Aug). No red-flag 8-Ks in the window.
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Monthly net open-market insider flow, last 12 months (up = net buying)
Insider flow
2 buyers, $1.5M (4 lots) · 3 sellers, $665K (4 lots)
| Insider | Buys | Bought | Sells | Sold | Last |
|---|---|---|---|---|---|
| Black Doug | 3 | $1.3M | 0 | – | Aug 26, 2026 |
| Eric J. Elema | 0 | – | 1 | $279K | Feb 13, 2026 |
| John T. Guthrie | 0 | – | 1 | $258K | Nov 26, 2025 |
| Daniel T. Laughlin | 1 | $247K | 0 | – | May 6, 2026 |
| Fred M. Diaz | 0 | – | 2 | $128K | May 28, 2026 |
5%+ holders
| Holder | Stake | Class | Schedule | Event | |
|---|---|---|---|---|---|
| T. ROWE Price Associates, Inc. | 10.4% | 13G | Nov 14, 2025 | filing ↗ | |
| Vanguard Capital Management | 5.3% | 13G | Apr 30, 2026 | filing ↗ |
Planned insider sales (Form 144)
| Seller | Planned | Approx. sale date | |
|---|---|---|---|
| Fred M. Diaz | $63K | May 28, 2026 | filing ↗ |
| Fred M. Diaz | $65K | May 27, 2026 | filing ↗ |
| Eric J. Elema | $279K | Feb 13, 2026 | filing ↗ |
| John T. Guthrie | $258K | Nov 26, 2025 | filing ↗ |
Material events (8-K)
| Item | Event date | |
|---|---|---|
| Earnings (2.02) | Jul 29, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Jul 29, 2026 | filing ↗ |
| Shareholder vote (5.07) | May 13, 2026 | filing ↗ |
| Earnings (2.02) | Apr 29, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Apr 29, 2026 | filing ↗ |
| Material agreement (1.01) | Apr 22, 2026 | filing ↗ |
| New financial obligation (2.03) | Apr 22, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Apr 22, 2026 | filing ↗ |
| Officer/director changes (5.02) | Mar 31, 2026 | filing ↗ |
| Other events (8.01) | Mar 31, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Mar 31, 2026 | filing ↗ |
| Earnings (2.02) | Feb 11, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Feb 11, 2026 | filing ↗ |
| Earnings (2.02) | Oct 29, 2025 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Oct 29, 2025 | filing ↗ |