SiteOne Landscape Supply, Inc. (SITE) ownership: Top institutional holder: VANGUARD GROUP INC ($499.43M). Insider activity: Net Seller (0 buys, 20 sells). 4 recent congressional STOCK Act disclosures. SEC EDGAR first-party data.
| Holder | Shares | Market Value | Reported |
|---|---|---|---|
| VANGUARD GROUP INC | 4009546.00 | $499.43M | 2025-12-31 |
| KAYNE ANDERSON RUDNICK INVESTMENT MANAGEMENT LLC | 2486718.00 | $331.01M | 2026-03-31 |
| AQR CAPITAL MANAGEMENT LLC | 2272825.00 | $292.79M | 2026-03-31 |
| WASATCH ADVISORS LP | 2121524.00 | $282.40M | 2026-03-31 |
| BlackRock, Inc. | 2065846.00 | $274.98M | 2026-03-31 |
| BAMCO INC /NY/ | 2059076.00 | $274.08M | 2026-03-31 |
| VANGUARD CAPITAL MANAGEMENT LLC | 2005149.00 | $266.91M | 2026-03-31 |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 1767706.00 | $235.30M | 2026-03-31 |
| Insider | Transaction | Value | Date |
|---|---|---|---|
| Sell | null | 2026-05-28 | |
| Sell | null | 2026-05-27 | |
| Sell | null | 2026-05-13 | |
| Sell | null | 2026-05-13 | |
| Sell | null | 2026-05-13 | |
| Sell | null | 2026-05-13 | |
| Sell | null | 2026-05-13 | |
| Sell | null | 2026-05-13 |
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Institutional data from SEC Form 13F. Insider data from SEC Form 4. Congressional data from STOCK Act disclosures. Not personalized investment advice.