Latest Period
Q1 2026
Security Snapshot
SiteOne Landscape Supply, Inc. - Common Stock (SITE) Institutional Ownership
CUSIP: 82982L103
13F Institutional Holders and Ownership History from Q2 2016 to Q1 2026
Institutions Reporting
421
Shares (Excl. Options)
49,171,696
Price
$133.11
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- Security type / class
- Equity / Common Stock
- Symbol
- SITE on NYSE
- All holders as of 31 Mar 2026
- Q1 2026
- Total 13F shares
- 49,171,696
- Total 13F value
- $6,524,990,696
- Portfolio coverage rank
- 0.01%
- Share change
- +388,280
- Value change
- +$67,870,575
- Number of holders
- 421
- Shares outstanding
- 44,501,309
- SEC-reported price per share
- $142.94
- Insider filing price
- $142.94
Latest holder snapshot
5 signals
Issuer context
Names, identifiers, and filing context for this profile.
3 identity fields
13F Shares, Excluding Options vs Price
13F Value, Excluding Options
Total Investors
Key facts
- SITE - SiteOne Landscape Supply, Inc. - Common Stock is tracked under CUSIP 82982L103.
- 421 institutions reported positions in Q1 2026.
- 5 significant owners is listed from Schedule 13D/13G reporting.
Change
- Holder count moved from 407 to 421 between Q4 2025 and Q1 2026.
- SEC-reported value moved from $6,066,581,202 to $6,524,990,696.
Research use
- You can quickly see who holds this security, then open quarter and manager detail pages for full evidence.
- 13F and Schedule 13D/13G sections are kept together so you can cross-check institutional and beneficial ownership context.
Evidence
Source: SEC Form 13F
Open SEC evidence
Latest holder context comes from 421 institutions filings for Q1 2026.
Security key
82982L103
Latest holder period
Q1 2026
13F holders
421
13D/G owners
5
CIK / CUSIP context first
Open Q1 2026 holders
SITE full holder history
SiteOne Landscape Supply, Inc. SEC filings
SiteOne Landscape Supply, Inc. company facts
SiteOne Landscape Supply, Inc. insider transactions
Broader feeds
Recent Quarterly Holder Reports
Open recent reporting periods for CUSIP 82982L103:
13D/G owners
Significant owners
Large-stake holder rows connected to Schedule 13D/G evidence.
Rows
5
Security
SITE
| Filer | Ownership | Change % | Holdings Value | Net Change | Nb Shares | Change % | Reporting Name | Report Period |
|---|---|---|---|---|---|---|---|---|
| PRICE T ROWE ASSOCIATES INC /MD/ | 10% | $598,973,194 | 4,650,413 | T. Rowe Price Associates, Inc. | 30 Sep 2025 | |||
| KAYNE ANDERSON RUDNICK INVESTMENT MANAGEMENT LLC | 6% | $355,464,265 | 2,668,250 | Kayne Anderson Rudnick Investment Management, LLC | 31 Dec 2025 | |||
| VANGUARD CAPITAL MANAGEMENT LLC | 5.3% | $335,225,604 | 2,345,219 | Vanguard Capital Management | 31 Mar 2026 | |||
| AQR CAPITAL MANAGEMENT LLC | 5.1% | $302,535,736 | 2,272,825 | AQR Capital Management, LLC | 31 Mar 2026 | |||
| BlackRock, Inc. | 4.6% | $240,655,151 | 2,056,003 | BlackRock, Inc. | 31 Dec 2024 |
As of 31 Mar 2026, 421 institutional investors reported holding 49,171,696 shares of SiteOne Landscape Supply, Inc. - Common Stock (SITE). This represents 110% of the company’s total 44,501,309 outstanding shares.
13F concentration
Top 25 institutional shareholders
Largest 13F positions for this security by reported shares and value.
Top holder share
74%
| Institution | Ownership % | Shares Held | Share Change % | Portfolio % | Holdings Value |
|---|---|---|---|---|---|
| PRICE T ROWE ASSOCIATES INC /MD/ | 10% | 4,513,643 | +1% | 0.07% | $600,812,000 |
| KAYNE ANDERSON RUDNICK INVESTMENT MANAGEMENT LLC | 5.6% | 2,486,718 | -6.8% | 0.97% | $331,007,033 |
| AQR CAPITAL MANAGEMENT LLC | 5.1% | 2,272,825 | +229% | 0.13% | $292,785,293 |
| WASATCH ADVISORS LP | 4.8% | 2,121,524 | +1.6% | 1.9% | $282,396,060 |
| BlackRock, Inc. | 4.6% | 2,065,846 | +4.2% | 0% | $274,984,754 |
| BAMCO INC /NY/ | 4.6% | 2,059,076 | +1.5% | 0.83% | $274,083,606 |
| VANGUARD CAPITAL MANAGEMENT LLC | 4.5% | 2,005,149 | 0% | 0.01% | $266,905,383 |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 4% | 1,767,706 | 0% | 0.01% | $235,299,346 |
| T. Rowe Price Investment Management, Inc. | 3.8% | 1,693,852 | +0.1% | 0.16% | $225,469,000 |
| Conestoga Capital Advisors, LLC | 2.5% | 1,106,701 | +2.9% | 2.9% | $147,312,970 |
| 59 North Capital Management, LP | 2.4% | 1,049,440 | -28% | 4.2% | $139,690,958 |
| Capital World Investors | 2.2% | 960,952 | -31% | 0.02% | $127,912,321 |
| Artisan Partners Limited Partnership | 1.9% | 836,975 | +89% | 0.18% | $111,409,711 |
| Impax Asset Management Group plc | 1.9% | 824,430 | -10% | 0.76% | $109,739,877 |
| DIMENSIONAL FUND ADVISORS LP | 1.8% | 805,336 | +3.7% | 0.02% | $107,190,907 |
| GEODE CAPITAL MANAGEMENT, LLC | 1.8% | 785,645 | +2.5% | 0.01% | $104,604,620 |
| STATE STREET CORP | 1.7% | 770,869 | +1.7% | 0% | $102,610,373 |
| UBS Group AG | 1.6% | 722,378 | +223% | 0.02% | $96,155,735 |
| Amundi | 1.6% | 703,767 | -0.82% | 0.03% | $93,595,045 |
| AMERIPRISE FINANCIAL INC | 1.5% | 670,506 | +20% | 0.02% | $89,251,347 |
| GENEVA CAPITAL MANAGEMENT LLC | 1.4% | 627,284 | -7.5% | 1.8% | $83,497,752 |
| CITADEL ADVISORS LLC | 1.3% | 594,728 | +6.6% | 0.06% | $79,164,244 |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 1.3% | 588,335 | +4.7% | 0.01% | $78,313,272 |
| NEUBERGER BERMAN GROUP LLC | 1.2% | 535,726 | -11% | 0.05% | $71,310,488 |
| Schonfeld Strategic Advisors LLC | 1.2% | 532,554 | +480% | 0.58% | $70,888,262 |
Quarter history
Institutional holders across reporting periods
Holder count, reported shares/value, and median price by quarter.
Periods
40
Latest
Q1 2026
Rows shown
1-25 of 40
| Period | 13F Shares, Excl. Options | Value, Excl. Options | Value Change | Price (Median) | Investors |
|---|---|---|---|---|---|
| 2026 Q1 | 49,171,696 | $6,524,990,696 | +$67,870,575 | $133.11 | 421 |
| 2025 Q4 | 48,689,208 | $6,066,581,202 | +$46,323,519 | $124.56 | 407 |
| 2025 Q3 | 48,304,130 | $6,219,254,315 | +$203,785,063 | $128.80 | 392 |
| 2025 Q2 | 46,833,632 | $5,665,040,799 | -$124,857,797 | $120.94 | 390 |
| 2025 Q1 | 47,737,731 | $5,796,975,949 | +$160,883,924 | $121.44 | 384 |
| 2024 Q4 | 46,185,671 | $6,085,204,108 | -$113,252,852 | $131.77 | 373 |
| 2024 Q3 | 46,782,474 | $7,059,866,151 | +$261,879,940 | $150.91 | 366 |
| 2024 Q2 | 46,300,976 | $5,621,838,573 | -$71,670,364 | $121.41 | 368 |
| 2024 Q1 | 46,350,035 | $8,092,488,437 | -$45,097,062 | $174.55 | 375 |
| 2023 Q4 | 46,711,112 | $7,591,090,870 | -$86,072,911 | $162.50 | 354 |
| 2023 Q3 | 47,171,892 | $7,710,421,801 | +$72,835,856 | $163.45 | 367 |
| 2023 Q2 | 46,709,325 | $7,814,327,726 | -$168,768,707 | $167.36 | 340 |
| 2023 Q1 | 47,802,340 | $6,540,852,931 | +$113,727,048 | $136.87 | 332 |
| 2022 Q4 | 47,173,313 | $5,537,349,377 | +$74,038,453 | $117.32 | 326 |
| 2022 Q3 | 46,593,257 | $4,851,396,785 | -$68,285,508 | $104.14 | 317 |
| 2022 Q2 | 46,036,064 | $5,471,694,735 | +$32,218,808 | $118.87 | 303 |
| 2022 Q1 | 45,599,240 | $7,378,627,599 | +$21,690,770 | $161.69 | 330 |
| 2021 Q4 | 45,191,214 | $10,946,602,478 | -$339,411,255 | $242.28 | 345 |
| 2021 Q3 | 45,863,516 | $9,153,615,245 | -$54,958,124 | $199.47 | 299 |
| 2021 Q2 | 46,243,534 | $7,829,903,888 | -$185,406,127 | $169.26 | 306 |
| 2021 Q1 | 47,603,631 | $8,126,090,000 | -$45,279,406 | $170.74 | 284 |
| 2020 Q4 | 47,682,575 | $7,565,166,990 | +$26,706,368 | $158.63 | 281 |
| 2020 Q3 | 47,574,529 | $5,801,104,248 | +$160,379,838 | $121.95 | 271 |
| 2020 Q2 | 46,250,130 | $5,270,190,499 | -$130,476,372 | $113.97 | 245 |
| 2020 Q1 | 47,587,996 | $3,503,723,011 | -$153,017,288 | $73.62 | 216 |