Who owns SiteOne Landscape Supply, Inc.?
Institutional ownership of SITE from SEC Form 13F filings across 277 reporting managers. All positions are from one synchronized reporting period — 2026-06-30 books, filed up to 45 days after quarter end — so every row is comparable.
277
13F holders
$3.17B
value, 2026 filers
75.2%
of shares outstanding (32.9M sh)
39
new positions (2026 filers)
Top institutional holders
ordered by shares owned · positions as of 2026-06-30· % of fund = share of the manager's own book · % of co. = share of SITE's shares outstanding
| # | Manager | Shares | Value | % of fund | % of co. | Δ shares QoQ |
|---|---|---|---|---|---|---|
| 1 | PRICE T ROWE ASSOCIATES INC /MD/ | 4.5M | $511,879 | 0.1% | 10.2% | -0.9% |
| 2 | KAYNE ANDERSON RUDNICK INVESTMENT MANAGEMENT LLC | 2.0M | $234.3M | 0.7% | 4.7% | -17.6% |
| 3 | BAMCO INC /NY/ | 2.0M | $232.1M | 0.3% | 4.6% | -1.5% |
| 4 | VANGUARD CAPITAL MANAGEMENT LLC | 2.0M | $229.3M | 0.0% | 4.6% | -50.0% |
| 5 | BlackRock, Inc. | 1.9M | $221.4M | 0.0% | 4.4% | -6.3% |
| 6 | VANGUARD PORTFOLIO MANAGEMENT LLC | 1.7M | $197.7M | 0.0% | 4% | -2.3% |
| 7 | Amundi | 1.0M | $120.0M | 0.0% | 2.4% | +49.0% |
| 8 | Capital World Investors | 991,818 | $113.5M | 0.0% | 2.3% | +3.2% |
| 9 | CITADEL ADVISORS LLC | 983,646 | $112.5M | 0.0% | 2.3% | +65.4% |
| 10 | GEODE CAPITAL MANAGEMENT, LLC | 756,823 | $86.6M | 0.0% | 1.7% | -3.7% |
| 11 | NEUBERGER BERMAN GROUP LLC | 711,289 | $81.4M | 0.1% | 1.6% | +32.8% |
| 12 | Qube Research & Technologies Ltd | 630,595 | $72.1M | 0.1% | 1.4% | +340.2% |
| 13 | Sixth Street Partners Management Company, L.P.NEW | 586,976 | $67.2M | 11.6% | 1.3% | new |
| 14 | CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 586,976 | $67.2M | 0.0% | 1.3% | -0.2% |
| 15 | Jupiter Topco LLCNEW | 520,229 | $59.5M | 0.0% | 1.2% | new |
| 16 | Balyasny Asset Management L.P.NEW | 456,856 | $52.3M | 0.1% | 1% | new |
| 17 | AMERICAN CENTURY COMPANIES INC | 440,385 | $50.4M | 0.0% | 1% | +12.1% |
| 18 | BANK OF AMERICA CORP /DE/ | 428,517 | $49.0M | 0.0% | 1% | +52.9% |
| 19 | MASSACHUSETTS FINANCIAL SERVICES CO /MA/ | 403,430 | $46.2M | 0.0% | 0.9% | +6687.2% |
| 20 | AMERIPRISE FINANCIAL INC | 402,979 | $46.1M | 0.0% | 0.9% | -39.9% |
| 21 | UBS Group AG | 383,667 | $43.9M | 0.0% | 0.9% | -46.9% |
| 22 | BROWN ADVISORY INC | 363,716 | $41.6M | 0.1% | 0.8% | +3.1% |
| 23 | Capital International Investors | 360,721 | $41.3M | 0.0% | 0.8% | +3.1% |
| 24 | WELLS FARGO & COMPANY/MN | 327,030 | $37.4M | 0.0% | 0.7% | -10.9% |
| 25 | VANGUARD FIDUCIARY TRUST CO | 280,522 | $32.1M | 0.0% | 0.6% | +0.8% |
Source: SEC Form 13F-HR filings (institutional managers over $100M in US-listed positions). 13Fs disclose long positions only, up to 45 days after quarter end; each manager's latest filed quarter is shown per row and dollar values are the manager's filed marks. Aggregates labeled "2026 filers" count only managers whose latest book is a 2026 quarter. Related: valuation · options positioning · supply chain. Research, not investment advice.