SiteOne Landscape Supply, Inc. (SITE) Ownership
SITE ownership summary
as of October 18, 2026- Institutions
- 114.2% of shares outstanding
- Insiders
- 1.84% of shares outstanding
- Shares outstanding
- 44.3M
- Float
- 42.9M shares available to trade
- Short interest
- 9.97% 3.8M shares short
- Days to cover
- 3.64 short interest up 25.1% vs prior month
- Institutions 114.23%
- Insiders 1.84%
SITE top institutional holders
20 largest| # | Holder | % of shares | Shares | Value | Change | Reported |
|---|---|---|---|---|---|---|
| 1 | T. Rowe Price Associates, Inc. | 10.25% | 4.5M | $424.3M | −39,571 (−0.9%) | June 30, 2026 |
| 2 | 59 North Capital Management, LP | 4.71% | 2.1M | $195.1M | +1.0M (+96.0%) | June 30, 2026 |
| 3 | Kayne Anderson Rudnick Investment Management LLC | 4.69% | 2.0M | $194.2M | −438,575 (−17.6%) | June 30, 2026 |
| 4 | BAMCO Inc | 4.65% | 2.0M | $192.4M | −30,277 (−1.5%) | June 30, 2026 |
| 5 | Vanguard Capital Management, LLC | 4.59% | 2.0M | $190.1M | −711 (−0.0%) | June 30, 2026 |
| 6 | BlackRock Inc | 4.43% | 1.9M | $183.5M | −131,092 (−6.3%) | June 30, 2026 |
| 7 | Vanguard Portfolio Management, LLC | 3.96% | 1.7M | $163.9M | −39,809 (−2.3%) | June 30, 2026 |
| 8 | T. Rowe Price Investment Management,Inc. | 3.79% | 1.7M | $156.8M | −40,785 (−2.4%) | June 30, 2026 |
| 9 | Wasatch Advisors LP | 2.91% | 1.3M | $120.4M | −851,847 (−40.2%) | June 30, 2026 |
| 10 | AQR Capital Management LLC | 2.83% | 1.2M | $117.1M | −1.0M (−45.7%) | June 30, 2026 |
| 11 | Dimensional Fund Advisors, Inc. | 2.43% | 1.1M | $100.8M | +257,034 (+31.9%) | June 30, 2026 |
| 12 | Amundi | 2.40% | 1.0M | $99.5M | +344,980 (+49.0%) | June 30, 2026 |
| 13 | Capital World Investors | 2.27% | 992K | $94.1M | +30,866 (+3.2%) | June 30, 2026 |
| 14 | Citadel Advisors Llc | 2.25% | 984K | $93.3M | +388,918 (+65.4%) | June 30, 2026 |
| 15 | Conestoga Capital Advisors, LLC | 2.20% | 960K | $91.1M | −146,415 (−13.2%) | June 30, 2026 |
| 16 | Impax Asset Management Group PLC | 1.92% | 836K | $79.3M | +11,980 (+1.5%) | June 30, 2026 |
| 17 | State Street Corp | 1.82% | 794K | $75.3M | +22,879 (+3.0%) | June 30, 2026 |
| 18 | Geode Capital Management, LLC | 1.73% | 757K | $71.8M | −28,822 (−3.7%) | June 30, 2026 |
| 19 | Neuberger Berman Group LLC | 1.63% | 711K | $67.5M | +175,563 (+32.8%) | June 30, 2026 |
| 20 | Qube Research & Technologies | 1.44% | 631K | $59.8M | +487,354 (+340.2%) | June 30, 2026 |
Value at the latest close. Change = shares bought or sold in the latest quarterly filing (13F). In the top 20, 9 holders added 2.7M shares and 11 cut 2.8M.
SITE top mutual fund and ETF holders
20 largest| # | Holder | % of shares | Shares | Value | Change | Reported |
|---|---|---|---|---|---|---|
| 1 | American Funds SMALLCAP World A | 3.27% | 1.4M | $135.5M | +125,000 (+9.6%) | September 30, 2026 |
| 2 | Vanguard MStar Total Stk Mkt Idx Invest | 3.23% | 1.4M | $133.8M | −1,854 (−0.1%) | August 31, 2026 |
| 3 | T. Rowe Price New Horizons | 3.03% | 1.3M | $125.4M | — | September 30, 2026 |
| 4 | Vanguard Small Cap Index | 2.25% | 981K | $93.1M | −38,979 (−3.8%) | September 30, 2026 |
| 5 | T. Rowe Price Mid-Cap Value | 1.80% | 787K | $74.6M | — | September 30, 2026 |
| 6 | Baron Small Cap Retail | 1.66% | 725K | $68.8M | −194,500 (−21.2%) | September 30, 2026 |
| 7 | Baron Real Estate Institutional | 1.31% | 571K | $54.1M | +11,350 (+2.0%) | September 30, 2026 |
| 8 | Vanguard MStar Small Cap Growth Indx Inv | 1.25% | 547K | $51.9M | −38,768 (−6.6%) | September 30, 2026 |
| 9 | T. Rowe Price US Smlr Coms Eq A | 1.12% | 491K | $46.5M | — | September 30, 2026 |
| 10 | BNP Paribas Aqua C C | 1.06% | 465K | $44.1M | −66 (−0.0%) | August 31, 2026 |
| 11 | BNP Paribas Aqua I | 1.06% | 464K | $44.0M | −42 (−0.0%) | August 31, 2026 |
| 12 | Conestoga Small Cap Investors | 0.87% | 380K | $36.0M | −38,530 (−9.2%) | August 31, 2026 |
| 13 | KBI Water A GBP | 0.84% | 369K | $35.0M | +81,563 (+28.4%) | July 31, 2026 |
| 14 | Vanguard Explorer Inv | 0.80% | 348K | $33.0M | +128,502 (+58.6%) | June 30, 2026 |
| 15 | Janus Henderson Triton D | 0.72% | 315K | $29.9M | +59,753 (+23.4%) | August 31, 2026 |
| 16 | Amundi KBI Aqua C | 0.71% | 308K | $29.2M | +32,961 (+12.0%) | August 31, 2026 |
| 17 | Columbia Small Cap Growth Inst | 0.69% | 300K | $28.5M | — | August 31, 2026 |
| 18 | Baron Discovery Institutional | 0.69% | 300K | $28.5M | — | September 30, 2026 |
| 19 | Wasatch Core Growth | 0.65% | 285K | $27.0M | −335,839 (−54.1%) | June 30, 2026 |
| 20 | T. Rowe Price Small-Cap Stock | 0.64% | 280K | $26.6M | −10,113 (−3.5%) | September 30, 2026 |
Funds report holdings monthly or quarterly; dates differ by fund.
SITE insider transactions
latest 4| Date | Name | Transaction | Price | Shares | Value |
|---|---|---|---|---|---|
| 2026-02-13 | Eric J Elema | Sell | $158.01 | 1,765 | $278,888 |
| 2025-07-25 | Doug Black | Sell | $132.09 | 7,384 | $975,353 |
| 2025-07-11 | Doug Black | Sell | $129.28 | 29,760 | $3.8M |
| 2025-07-01 | Joseph Ketter | Sell | $126.28 | 39,640 | $5.0M |
Reported trades by company officers, directors and other filers (including disclosures by members of Congress where EODHD lists them). "—" where the filing gives no share count.
SITE shares outstanding
Year-end shares outstanding, adjusted for splits.
Who owns SITE
Institutional investors own 114.2% of SiteOne Landscape Supply's shares and insiders 1.84%. The largest holder is T. Rowe Price Associates, Inc. with 10.25% of the shares (4.5M), as of June 30, 2026. Among the top 20 institutions, 9 added shares and 11 reduced their stake in the latest filings. Short interest is 9.97% of the float, or 3.64 days of average trading volume. The share count rose 217.8% since 2014.
Related: SITE analyst forecast, SITE key metrics. See the SITE stock overview for the latest quote and news.
SITE ownership FAQ
Who owns the most SiteOne Landscape Supply stock?
The largest shareholders of SiteOne Landscape Supply are T. Rowe Price Associates, Inc. (10.25%), 59 North Capital Management, LP (4.71%), Kayne Anderson Rudnick Investment Management LLC (4.69%), BAMCO Inc (4.65%), Vanguard Capital Management, LLC (4.59%).
What percentage of SiteOne Landscape Supply is owned by institutions?
Institutions hold 114.2% of SiteOne Landscape Supply's shares outstanding; insiders hold 1.84%.
Which funds own SiteOne Landscape Supply?
The largest fund holders of SiteOne Landscape Supply are American Funds SMALLCAP World A (3.27%), Vanguard MStar Total Stk Mkt Idx Invest (3.23%), T. Rowe Price New Horizons (3.03%), Vanguard Small Cap Index (2.25%), T. Rowe Price Mid-Cap Value (1.80%).
What is SiteOne Landscape Supply's short interest?
3.8M shares of SiteOne Landscape Supply were sold short, 9.97% of the float; at the average daily volume it would take 3.64 days to cover.
Are insiders buying or selling SiteOne Landscape Supply?
Of the latest 4 reported insider transactions in SiteOne Landscape Supply (since July 1, 2025), 0 were purchases and 4 were sales.
How many shares of SiteOne Landscape Supply are outstanding?
SiteOne Landscape Supply has 44.3M shares outstanding, of which 42.9M are in the public float.