SiteOne Landscape Supply, Inc.
SiteOne Landscape Supply, Inc. (SITE) Stock Ownership
Institutional vs insider vs public ownership from 13F and float data — top holders, activity, and insider trades below.
SEC 13F · FMP · SITE · as of Sep 30, 2025
Ownership Breakdown
403
Institutional Holders
▲ 4 vs Q2
$6.22B
Total Inst. Value
▲ $553.29M vs Q2
44.31M
Shares Outstanding
freeFloat 98.18%
48.34M
13F Shares Held
▲ 1.46M vs Q2
Institutional ownership = 13F shares ÷ total outstanding. Insider % = 100 − free float. Public % = free float − institution %. Data: FMP /symbol-positions-summary + /shares-float + SEC EDGAR.
Top Institutional Holders
SITE largest shareholders · institutional ownership
Q3 2025 · SEC 13F
Showing top 10 holders
| Holder | Shares | % Owned | Weight | Value | Reported | Change |
|---|---|---|---|---|---|---|
PRICE T ROWE ASSOCIATES INC /MD/ wholesale-professional & commercial equipment & supplies | 4.65M | 10.34% | 10.34% | $598.92B | Nov 14, 2025 | ▼ 1.30M |
VANGUARD GROUP INC wholesale-professional & commercial equipment & supplies | 4.06M | 9.04% | 9.04% | $523.17B | Nov 7, 2025 | ▼ 52.2K |
KAYNE ANDERSON RUDNICK INVESTMENT MANAGEMENT LLC wholesale-professional & commercial equipment & supplies | 2.94M | 6.53% | 6.53% | $378.19B | Nov 13, 2025 | ▼ 61.9K |
WASATCH ADVISORS LP wholesale-professional & commercial equipment & supplies | 2.18M | 4.84% | 4.84% | $280.46B | Nov 14, 2025 | ▲ 223.0K |
T. ROWE PRICE INVESTMENT MANAGEMENT, INC. wholesale-professional & commercial equipment & supplies | 1.99M | 4.42% | 4.42% | $255.83B | Nov 14, 2025 | ▲ 51.1K |
BAMCO INC /NY/ wholesale-professional & commercial equipment & supplies | 1.97M | 4.38% | 4.38% | $253.33B | Nov 14, 2025 | ▲ 25.1K |
BLACKROCK, INC. wholesale-professional & commercial equipment & supplies | 1.95M | 4.34% | 4.34% | $251.29B | Nov 12, 2025 | ▲ 31.9K |
59 NORTH CAPITAL MANAGEMENT, LP wholesale-professional & commercial equipment & supplies | 1.66M | 3.70% | 3.70% | $214.42B | Nov 14, 2025 | NEW |
CONESTOGA CAPITAL ADVISORS, LLC wholesale-professional & commercial equipment & supplies | 1.15M | 2.55% | 2.55% | $147.62B | Oct 24, 2025 | ▼ 14.1K |
CITADEL ADVISORS LLC wholesale-professional & commercial equipment & supplies | 1.11M | 2.48% | 2.48% | $143.34B | Nov 14, 2025 | ▲ 665.1K |
Data from SEC Form 13F filings. Ownership bar normalised to largest holder. Change flags: isNew / isSoldOut / changeInSharesNumber (FMP extract-analytics/holder).
Institutional Activity
Q3 2025 vs prior quarter
Q3 2025
22
Increased
+2.85M shares3
New Positions
first time holders25
Decreased
−2.71M shares0
Sold Out
fully exitedNet shares change (top 50)
+139.7K
+2.85M / −2.71M
Net new holders
+0
3 new / 0 exited
Based on top 50 institutional holders by position size. Fields: isNew, isSoldOut, changeInSharesNumber (FMP extract-analytics/holder, limit=50).
Insider Buying vs Selling
SITE insider trading · insider activity
Source: SEC Form 4
Insiders have been primarily selling shares recently. Selling may be driven by pre-scheduled Rule 10b5-1 plans rather than negative sentiment.
13
Buy transactions
8
Sell transactions
1.63
Buy/Sell ratio
$0M
Total disposed
Recent Insider Transactions
Showing 10 most recent · Common Stock only
| Name · Role | Date | Type | Shares | Price | Value | After Trans. | Filing |
|---|---|---|---|---|---|---|---|
Jackson Travis Ryan General Counsel & Secretary | Jun 2, 2026 | Tax Withhold | 160 | $103.82 | $16.6K | 862 | Form 4 ↗ |
Diaz Fred M director | May 27, 2026 | Sale | 563 | $115.13 | $64.8K | 11.8K | Form 4 ↗ |
Diaz Fred M director | May 28, 2026 | Sale | 562 | $112.52 | $63.2K | 11.3K | Form 4 ↗ |
WYSZOMIERSKI JACK L director | May 13, 2026 | Award | 1,186 | — | — | 19.1K | Form 4 ↗ |
Sansone Judith S director | May 13, 2026 | Award | 1,186 | — | — | 3.2K | Form 4 ↗ |
Isbell Jeri L director | May 13, 2026 | Award | 1,186 | — | — | 1.2K | Form 4 ↗ |
Dunbar Webster Roy director | May 13, 2026 | Award | 1,186 | — | — | 11.7K | Form 4 ↗ |
Drake Larisa director | May 13, 2026 | Award | 1,186 | — | — | 1.2K | Form 4 ↗ |
Douglas William W III director | May 13, 2026 | Award | 1,186 | — | — | 19.1K | Form 4 ↗ |
Diaz Fred M director | May 13, 2026 | Award | 1,186 | — | — | 1.2K | Form 4 ↗ |
Source: /insider-trading/search (FMP stable). Buy/Sell direction: acquisitionOrDisposition A=Buy, D=Sell. RSU vesting (M-Exempt) excluded from sentiment bar. All data from SEC EDGAR public filings.
About institutional & insider ownership
SiteOne Landscape Supply, Inc. (SITE) is primarily owned by institutional investors, who hold approximately 100.0% of total shares outstanding. Company insiders own approximately 1.82%, while retail and public investors account for the remaining 0.00%.
The largest institutional shareholder of SiteOne Landscape Supply, Inc. is PRICE T ROWE ASSOCIATES INC /MD/, holding approximately 4.65 million shares — equal to 10.34% of outstanding shares — as of September 30, 2025.
A total of 403 institutional investors currently hold SITE stock, with a combined institutional value of approximately $6.22 billion as of the most recent 13F filing period.
Frequently asked questions
SITE ownershipSiteOne Landscape Supply, Inc. (SITE) is primarily owned by institutional investors, who hold approximately 100.0% of shares. The largest shareholder is PRICE T ROWE ASSOCIATES INC /MD/ with a 10.34% stake. Company insiders hold 1.82%. Data sourced from SEC Form 13F as of September 30, 2025.