Over the last 12 months, SiteOne Landscape Supply insiders reported 1 buy totaling $816K and 2 sales totaling $128K across SEC Form 4 filings. 67% of the activity was filed under pre-arranged 10b5-1 trading plans.
| Date | Insider | Type | Shares | Avg price | Value | Δ stake | Marks |
|---|---|---|---|---|---|---|---|
| Aug 4, 2026 | BLACK DOUGCEO · O·D | ▲ Buy | 8,000 | $102.04 | $816K | — | 2 tranches · indirect |
| May 28, 2026 | Diaz Fred MD | ▼ Sale | 562 | $112.52 | $63K | -4.8% | plan |
| May 27, 2026 | Diaz Fred MD | ▼ Sale | 563 | $115.13 | $65K | -4.5% | plan |
Corporate insiders — officers, directors and 10%+ owners — must report their trades to the SEC on Form 4 within two business days. We group each filing's transactions into one economic event (a laddered 10b5-1 sale is one event, not 25 rows), flag pre-arranged plans and late filings, and link every event to its AI-scored article in the $SITE feed.