SITEONE LANDSCAPE SUPPLY INC SITE
COM · Common Stock · CUSIP 82982L103 · ISIN US82982L1035
Supplier of wholesale goods for green industry professionals
- SectorIndustrials
- IndustryWholesale-Professional & Commercial Equipment & Supplies
- HeadquartersRoswell, GA
- Websitesiteone.com
- FilingsSEC EDGAR
* Summed across managers. Shares that two managers' reports both contain – a subsidiary's holdings that its parent's report includes too, or a sub-adviser's in its client's – are counted once ($6.6m this quarter). Holder counts are more reliable. Shares outstanding: 44.5m as of 2025-10-24, from the company's own SEC filing; the percentage can still exceed 100%: lent-out shares are counted by the lender and the buyer, and some reports overlap without saying so. Implied quarter-end price ≈ $128.75. Options: 4 managers hold calls ($3.8m notional), 1 hold puts ($940.2k).
Trends to Q3 2025
Institutional holders
Managers reporting a position, each quarter
Numbers
| Quarter | Holders |
|---|---|
| Q3 2022 | 330 |
| Q4 2022 | 332 |
| Q1 2023 | 337 |
| Q2 2023 | 344 |
| Q3 2023 | 369 |
| Q4 2023 | 357 |
| Q1 2024 | 380 |
| Q2 2024 | 377 |
| Q3 2024 | 371 |
| Q4 2024 | 379 |
| Q1 2025 | 390 |
| Q2 2025 | 396 |
| Q3 2025 | 398 |
Buyers vs sellers
Managers adding to or starting a position, vs cutting or selling out
Numbers
| Quarter | Bought or added | Cut or sold out |
|---|---|---|
| Q4 2023 | 171 | 180 |
| Q1 2024 | 202 | 156 |
| Q2 2024 | 206 | 183 |
| Q3 2024 | 193 | 167 |
| Q4 2024 | 160 | 186 |
| Q1 2025 | 178 | 176 |
| Q2 2025 | 179 | 200 |
| Q3 2025 | 180 | 185 |
Calls vs puts
Options held, notional value, last 4 quarters. P/C = puts ÷ calls
Numbers
| Quarter | Calls | Puts | P/C |
|---|---|---|---|
| Q4 2024 | $5.4m | $947.6k | 0.17 |
| Q1 2025 | $13.8m | $983.7k | 0.07 |
| Q2 2025 | $12.8m | $689.4k | 0.05 |
| Q3 2025 | $3.8m | $940.2k | 0.25 |
Biggest buyers
| 59 North Capital Management, LP | New | +1.7m |
| CITADEL ADVISORS LLC | Added | +665.1k |
| Cartenna Capital, LP | New | +495.0k |
| Amundi | New | +467.0k |
| JANUS HENDERSON GROUP PLC | Added | +392.2k |
| Balyasny Asset Management L.P. | Added | +311.6k |
| Driehaus Capital Management LLC | New | +309.0k |
| WASATCH ADVISORS LP | Added | +223.0k |
| UBS Group AG | Added | +189.0k |
| JPMORGAN CHASE & CO | Added | +161.0k |
Biggest sellers
| PRICE T ROWE ASSOCIATES INC /MD/ | Reduced | -1.3m |
| Allianz Asset Management GmbH | Sold out | -666.3k |
| JARISLOWSKY, FRASER Ltd | Reduced | -419.5k |
| AMERICAN CENTURY COMPANIES INC | Reduced | -245.3k |
| ROYAL BANK OF CANADA | Reduced | -234.4k |
| AQR CAPITAL MANAGEMENT LLC | Reduced | -186.0k |
| Skandinaviska Enskilda Banken AB (publ) | Reduced | -123.4k |
| MILLENNIUM MANAGEMENT LLC | Reduced | -115.9k |
| BANK OF AMERICA CORP /DE/ | Reduced | -114.8k |
| Cubist Systematic Strategies, LLC | Sold out | -109.3k |
Biggest calls
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Reduced | $2.4m18.5k shares |
| Twin Tree Management, LP | Reduced | $1.1m8.6k shares |
| CITADEL ADVISORS LLC | Reduced | $244.7k1.9k shares |
| SIMPLEX TRADING, LLC | Reduced | $25.0k200 shares |
Biggest puts
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Added | $940.2k7.3k shares |
Options at notional value: the value of the shares the contracts control, as filers report them, not what the options cost. Not included in the holders, shares or buying above.
Major shareholders (over 5%)
Anyone who owns more than 5% of a class of the company's shares has to say so: on Schedule 13D if they may try to influence or control the company, on 13G if they're a passive investor, and update it as the stake changes. Each holder's latest filing, from 19 Dec 2024 on; percentages are of the share class, as the holder worked them out.
| Holder | Stake |
|---|---|
| PRICE T ROWE ASSOCIATES INC /MD/ 13G · institution filed 2025-11-14 | 10.4% |
| VANGUARD CAPITAL MANAGEMENT LLC 13G · institution new · filed 2026-04-30 | 5.3% |
Fell to 5% or below in the last year: KAYNE ANDERSON RUDNICK INVESTMENT MANAGEMENT LLC (4.6%, 2026-08-13), AQR CAPITAL MANAGEMENT LLC (2.8%, 2026-08-12), VANGUARD GROUP INC (0.0%, 2026-03-27; now reported by VANGUARD CAPITAL MANAGEMENT LLC)
Insider purchases and sales in Q3 2025
Shares bought or sold by the company's own officers, directors and 10% owners, in the open market or privately, as they reported to the SEC on Form 4 (due within two business days of the trade). Grants, option exercises, shares withheld for tax and gifts aren't included.
Officers and directors buying vs selling
Number of people, by quarter (10% owners not included)
Numbers
| Quarter | Buying | Bought | Selling | Sold | Sold under a plan |
|---|---|---|---|---|---|
| Q4 2023 | 0 | — | 2 | $5.6m | $5.6m |
| Q1 2024 | 0 | — | 3 | $5.6m | $5.5m |
| Q2 2024 | 0 | — | 1 | $3.2m | $3.2m |
| Q3 2024 | 0 | — | 1 | $113.3k | $113.3k |
| Q4 2024 | 0 | — | 1 | $924.3k | — |
| Q1 2025 | 0 | — | 1 | $974.4k | $974.4k |
| Q2 2025 | 0 | — | 0 | — | — |
| Q3 2025 | 0 | — | 3 | $10.0m | $10.0m |
| Date | Insider | Trade | Value |
|---|---|---|---|
| 2025-08-29 | Diaz Fred M Director | Sold plan | $125.5k865 shares |
| 2025-07-25 | BLACK DOUG CEO, director | Sold plan | $975.4k7.4k shares |
| 2025-07-11 | BLACK DOUG CEO, director | Sold plan | $3.8m29.8k shares |
| 2025-07-01 | Ketter Joseph EVP, Human Resources | Sold plan | $5.0m39.6k shares |
Their holding: how much the trade added to or took from the insider's holding (direct, or the trust or fund named). The same trade is sometimes reported by more than one insider, such as a fund and the director who represents it; totals count it once. A value is left blank where the reported price is far from the market price (usually a typo).
Holders, Q3 2025
| Manager | Shares | Change |
|---|---|---|
| PRICE T ROWE ASSOCIATES INC /MD/ 0.06% of their portfolio | 4.7m $598.9m | Reduced -1.3m |
| VANGUARD GROUP INC 0.01% of their portfolio | 4.1m $523.2m | Reduced -52.2k |
| KAYNE ANDERSON RUDNICK INVESTMENT MANAGEMENT LLC 0.92% of their portfolio | 2.9m $378.2m | Reduced -61.9k |
| WASATCH ADVISORS LP 1.51% of their portfolio | 2.2m $280.5m | Added +223.0k |
| T. Rowe Price Investment Management, Inc. 0.16% of their portfolio | 2.0m $255.8m | Added +51.1k |
| BAMCO INC /NY/ 0.67% of their portfolio | 2.0m $253.3m | Added +25.1k |
| BlackRock, Inc. 0.00% of their portfolio | 2.0m $251.3m | Added +31.9k |
| 59 North Capital Management, LP 6.68% of their portfolio | 1.7m $214.4m | New |
| Conestoga Capital Advisors, LLC 2.37% of their portfolio | 1.1m $147.6m | Reduced -14.1k |
| CITADEL ADVISORS LLC 0.11% of their portfolio | 1.1m $143.3m | Added +665.1k |
| Capital World Investors 0.02% of their portfolio | 1.0m $130.9m | Added +32.7k |
| Impax Asset Management Group plc 0.69% of their portfolio | 920.7k $118.6m | Reduced -90.2k |
| STATE STREET CORP 0.00% of their portfolio | 765.0k $98.5m | Reduced -12.4k |
| GEODE CAPITAL MANAGEMENT, LLC 0.01% of their portfolio | 760.8k $98.0m | Added +15.5k |
| GENEVA CAPITAL MANAGEMENT LLC 1.68% of their portfolio | 760.2k $97.9m | Added +4 |
| DIMENSIONAL FUND ADVISORS LP 0.02% of their portfolio | 732.4k $94.3m | Added +31.0k |
| NEUBERGER BERMAN GROUP LLC 0.06% of their portfolio | 632.1k $81.4m | Reduced -52.4k |
| AMERIPRISE FINANCIAL INC 0.02% of their portfolio | 569.7k $73.4m | Reduced -52.3k |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC 0.01% of their portfolio | 560.0k $72.1m | Added +5.0k |
| Artisan Partners Limited Partnership 0.10% of their portfolio | 538.6k $69.4m | Added +90.2k |
| GW&K Investment Management, LLC 0.60% of their portfolio | 525.4k $67.7m | Reduced -65.9k |
| Cartenna Capital, LP 3.32% of their portfolio | 495.0k $63.8m | New |
| JPMORGAN CHASE & CO 0.00% of their portfolio | 487.0k $62.7m | Added +161.0k |
| BROWN ADVISORY INC 0.08% of their portfolio | 481.9k $62.1m | Reduced -18.0k |
| UBS Group AG 0.01% of their portfolio | 473.2k $61.0m | Added +189.0k |
| Amundi 0.02% of their portfolio | 467.0k $59.8m | New |
| Stephens Investment Management Group LLC 0.73% of their portfolio | 436.9k $56.3m | Reduced -24.9k |
| WELLS FARGO & COMPANY/MN 0.01% of their portfolio | 435.0k $56.0m | Reduced -13.0k |
| JANUS HENDERSON GROUP PLC 0.02% of their portfolio | 410.5k $52.9m | Added +392.2k |
| BANK OF AMERICA CORP /DE/ 0.00% of their portfolio | 409.1k $52.7m | Reduced -114.8k |
| AMERICAN CENTURY COMPANIES INC 0.03% of their portfolio | 383.7k $49.4m | Reduced -245.3k |
| DF DENT & CO INC 0.63% of their portfolio | 378.2k $48.7m | Reduced -79.8k |
| LOOMIS SAYLES & CO L P 0.06% of their portfolio | 360.6k $46.4m | Reduced -10.9k |
| FRED ALGER MANAGEMENT, LLC 0.18% of their portfolio | 357.9k $46.1m | Reduced -52.7k |
| Balyasny Asset Management L.P. 0.09% of their portfolio | 351.0k $45.2m | Added +311.6k |
| Premier Fund Managers Ltd 1.80% of their portfolio | 343.5k $43.9m | Added +303 |
| Allspring Global Investments Holdings, LLC 0.07% of their portfolio | 325.2k $41.5m | Reduced -11.5k |
| J. Goldman & Co LP 1.54% of their portfolio | 315.1k $40.6m | Added +145.3k |
| Driehaus Capital Management LLC 0.29% of their portfolio | 309.0k $39.8m | New |
| Pembroke Management, LTD 3.89% of their portfolio | 304.4k $39.2m | Added +35.3k |
| ENVESTNET ASSET MANAGEMENT INC 0.01% of their portfolio | 294.3k $37.9m | Reduced -11.0k |
| RAYMOND JAMES FINANCIAL INC 0.01% of their portfolio | 293.3k $37.8m | Reduced -7.2k |
| Bank of New York Mellon Corp 0.01% of their portfolio | 292.4k $37.7m | Reduced -88.0k |
| ACK Asset Management LLC 4.51% of their portfolio | 280.0k $36.1m | Added +30.0k |
| GILDER GAGNON HOWE & CO LLC 0.37% of their portfolio | 278.6k $35.9m | Added +35.2k |
| AQR CAPITAL MANAGEMENT LLC 0.02% of their portfolio | 255.2k $32.6m | Reduced -186.0k |
| NORTHERN TRUST CORP 0.00% of their portfolio | 253.3k $32.6m | Reduced -25.2k |
| Sandhill Capital Partners LLC 2.20% of their portfolio | 244.2k $31.5m | Reduced -39.6k |
| Handelsbanken Fonder AB 0.10% of their portfolio | 242.4k $31.2m | Added +60.0k |
| MORGAN STANLEY 0.00% of their portfolio | 230.8k $29.7m | Added +15.9k |
| BLI - Banque de Luxembourg Investments 0.82% of their portfolio | 220.5k $28.2m | Added +47.4k |
| SEI INVESTMENTS CO 0.03% of their portfolio | 213.6k $27.5m | Reduced -1.9k |
| ROYAL BANK OF CANADA 0.00% of their portfolio | 199.6k $25.7m | Reduced -234.4k |
| VOYA INVESTMENT MANAGEMENT LLC 0.02% of their portfolio | 187.9k $24.2m | Added +43.5k |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP 0.03% of their portfolio | 183.9k $23.7m | Added +129.0k |
| Kinetic Partners Management, LP 0.98% of their portfolio | 157.5k $20.3m | New |
| Fenimore Asset Management Inc 0.39% of their portfolio | 152.9k $19.7m | Reduced -298 |
| Fisher Asset Management, LLC 0.01% of their portfolio | 152.9k $19.7m | Added +20.1k |
| CITIGROUP INC 0.01% of their portfolio | 152.1k $19.6m | Reduced -9.8k |
| Local Pensions Partnership Investment Ltd 0.31% of their portfolio | 142.7k $18.4m | Reduced -10.0k |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC 0.00% of their portfolio | 140.3k $18.1m | Reduced -80.3k |
| WCM INVESTMENT MANAGEMENT, LLC 0.04% of their portfolio | 139.1k $17.8m | Reduced -1.8k |
| NATIXIS ADVISORS, LLC 0.03% of their portfolio | 137.4k $17.7m | Reduced -25.8k |
| BNP PARIBAS FINANCIAL MARKETS 0.01% of their portfolio | 110.3k $14.2m | Reduced -47.0k |
| COMERICA BANK 0.05% of their portfolio | 108.3k $13.9m | Added +74 |
| NEW YORK STATE COMMON RETIREMENT FUND 0.02% of their portfolio | 104.5k $13.5m | Added +17.4k |
| SEGALL BRYANT & HAMILL, LLC 0.17% of their portfolio | 101.3k $13.0m | Added +2.5k |
| Hill City Capital, LP 0.55% of their portfolio | 100.2k $12.9m | Unchanged |
| Nuveen, LLC 0.00% of their portfolio | 99.9k $12.9m | Reduced -2.4k |
| Interval Partners, LP 0.27% of their portfolio | 98.8k $12.7m | New |
| Mediolanum International Funds Ltd 0.13% of their portfolio | 93.6k $12.0m | New |
| Zuckerman Investment Group, LLC 1.11% of their portfolio | 92.7k $11.9m | Reduced -3.6k |
| Schonfeld Strategic Advisors LLC 0.08% of their portfolio | 91.0k $11.7m | Added +27.8k |
| Walleye Capital LLC 0.09% of their portfolio | 88.6k $11.4m | New |
| STIFEL FINANCIAL CORP 0.01% of their portfolio | 87.0k $11.2m | Reduced -3.4k |
| Swiss National Bank 0.01% of their portfolio | 86.9k $11.2m | Added +1.0k |
| GOLDMAN SACHS GROUP INC 0.00% of their portfolio | 85.5k $11.0m | Added +3.0k |
| Rockefeller Capital Management L.P. 0.02% of their portfolio | 83.0k $10.7m | Reduced -76.1k |
| VOLORIDGE INVESTMENT MANAGEMENT, LLC 0.04% of their portfolio | 81.6k $10.5m | Reduced -56.4k |
| California Public Employees Retirement System 0.01% of their portfolio | 76.5k $9.9m | Added +19.1k |
| Universal- Beteiligungs- und Servicegesellschaft mbH 0.02% of their portfolio | 76.4k $9.8m | Reduced -4.5k |
| ROYCE & ASSOCIATES LP 0.09% of their portfolio | 72.5k $9.3m | Added +10.5k |
| JANE STREET GROUP, LLC 0.01% of their portfolio | 71.3k $9.2m | Reduced -51.9k |
| BOOTHBAY FUND MANAGEMENT, LLC 0.22% of their portfolio | 66.8k $8.6m | New |
| TRUIST FINANCIAL CORP 0.01% of their portfolio | 60.9k $7.8m | Reduced -3.3k |
| Summit Creek Advisors LLC 1.13% of their portfolio | 60.1k $7.7m | Reduced -4.8k |
| Point72 Asset Management, L.P. 0.02% of their portfolio | 58.9k $7.6m | Reduced -21.9k |
| Legal & General Group Plc 0.00% of their portfolio | 58.9k $7.6m | Reduced -4.0k |
| STATE OF WISCONSIN INVESTMENT BOARD 0.02% of their portfolio | 58.8k $7.6m | Added +36 |
| Skandinaviska Enskilda Banken AB (publ) 0.03% of their portfolio | 55.9k $7.2m | Reduced -123.4k |
| Crown Oak Advisors, LLC 3.18% of their portfolio | 55.7k $6.7m | Unchanged |
| McCollum Christoferson Group LLC 2.02% of their portfolio | 54.7k $7.0m | Reduced -2.7k |
| MILLENNIUM MANAGEMENT LLC 0.01% of their portfolio | 54.1k $7.0m | Reduced -115.9k |
| BLAIR WILLIAM & CO/IL 0.02% of their portfolio | 52.6k $6.8m | Reduced -8.1k |
| EULAV Asset Management 0.15% of their portfolio | 51.1k $6.6m | Unchanged |
| PUBLIC EMPLOYEES RETIREMENT SYSTEM OF OHIO 0.02% of their portfolio | 50.3k $6.5m | Added +6.2k |
| Motley Fool Wealth Management, LLC 0.44% of their portfolio | 50.2k $6.5m | Reduced -5.8k |
| ExodusPoint Capital Management, LP 0.09% of their portfolio | 50.1k $6.5m | Added +33.6k |
| NICHOLAS COMPANY, INC. 0.11% of their portfolio | 48.1k $6.2m | Unchanged |
| Magnetar Financial LLC 0.04% of their portfolio | 46.7k $6.0m | Added +13.6k |