SiteOne Landscape Supply, Inc.
SITE- Exchange
- NYSE
- Industry
- Wholesale-Professional & Commercial Equipment & Supplies
- SEC CIK
- 0001650729
In the last 90 days, SiteOne Landscape Supply, Inc. insiders filed 2 open-market purchases and 0 sales; 396 institutions reported holding it in 13F filings for Q2 2026, worth $5.40B in total; no superinvestor holds it.
Holders of 5% or more of SITE
Holders whose latest Schedule 13D or 13G filing reports 5% or more of SiteOne Landscape Supply, Inc., largest stake first. The change is against the holder's previous filing.
| Holder | Latest form | Stake | Change | First filed | Latest filing | Filing |
|---|---|---|---|---|---|---|
| Price T Rowe Associates Inc | 13G/A | 10.40%4.65M shares | – | Feb 16, 20212 filings | Nov 14, 2025 | SEC |
| Vanguard Capital Management LLC | 13G | 5.27%2.35M shares | New | Apr 30, 20261 filing | Apr 30, 2026 | SEC |
Stakes are as of each holder's latest filing. Holders whose last filing was in the old format (before December 18, 2024) have no stake on record and are not listed, and after an acquisition or delisting holders usually stop filing.
13D and 13G filings
12 Schedule 13D and 13G filings on SiteOne Landscape Supply, Inc., newest first, including old-format filings without a stake.
| Filed (ET) | Filer | Form | Stake | Change | Event date | Filing |
|---|---|---|---|---|---|---|
| Aug 13, 20264:05 PM ET | Kayne Anderson Rudnick Investment Management LLC | 13G/A | 4.60%2.05M shares | −1.40 ppfrom 6.00%Below 5% | Jun 30, 2026 | SEC |
| Aug 12, 20268:16 AM ET | AQR Capital Management LLCand 1 other | 13G/A | 2.79%1.23M shares | −2.32 ppfrom 5.11%Below 5% | Jun 30, 2026 | SEC |
| May 14, 202611:55 AM ET | AQR Capital Management LLCand 1 other | 13G | 5.11%2.27M shares | New | Mar 31, 2026 | SEC |
| Apr 30, 202612:55 PM ET | Vanguard Capital Management LLC | 13G | 5.27%2.35M shares | New | Mar 31, 2026 | SEC |
| Mar 27, 20261:03 PM ET | Vanguard Group Inc | 13G/A | 0.00%0 shares | –Below 5% | Mar 13, 2026 | SEC |
| Feb 13, 20264:05 PM ET | Kayne Anderson Rudnick Investment Management LLC | 13G/A | 6.00%2.67M shares | – | Dec 31, 2025 | SEC |
| Nov 14, 202512:19 PM ET | Price T Rowe Associates Inc | 13G/A | 10.40%4.65M shares | – | Sep 30, 2025 | SEC |
| Feb 5, 20255:28 PM ET | BlackRock, Inc. | 13G/A | 4.60%2.06M shares | –Below 5% | Dec 31, 2024 | SEC |
| Feb 16, 2021 | Price T Rowe Associates Inc | 13G/AOld format | – | – | – | SEC |
| Feb 11, 2021 | Kayne Anderson Rudnick Investment Management LLC | 13G/AOld format | – | – | – | SEC |
| Feb 10, 2021 | Vanguard Group Inc | 13G/AOld format | – | – | – | SEC |
| Jan 14, 2021 | Baillie Gifford & Co | 13G/AOld format | – | – | – | SEC |
Form 144: proposed insider sales
Notices from officers, directors and other affiliates planning to sell SiteOne Landscape Supply, Inc. shares.
No Form 144 notices for SiteOne Landscape Supply, Inc. are on file.