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 ($11.3m this quarter). Holder counts are more reliable. Shares outstanding: 44.3m as of 2026-04-24, 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 ≈ $132.70. Options: 10 managers hold calls ($23.8m notional), 5 hold puts ($3.6m).
Trends to Q1 2026
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 |
| Q4 2025 | 409 |
| Q1 2026 | 426 |
Buyers vs sellers
Managers adding to or starting a position, vs cutting or selling out
Numbers
| Quarter | Bought or added | Cut or sold out |
|---|---|---|
| Q2 2024 | 206 | 183 |
| Q3 2024 | 193 | 167 |
| Q4 2024 | 160 | 186 |
| Q1 2025 | 178 | 176 |
| Q2 2025 | 179 | 200 |
| Q3 2025 | 180 | 185 |
| Q4 2025 | 182 | 201 |
| Q1 2026 | 224 | 186 |
Calls vs puts
Options held, notional value, last 4 quarters. P/C = puts ÷ calls
Numbers
| Quarter | Calls | Puts | P/C |
|---|---|---|---|
| Q2 2025 | $12.8m | $689.4k | 0.05 |
| Q3 2025 | $3.8m | $940.2k | 0.25 |
| Q4 2025 | $125.2m | $8.2m | 0.07 |
| Q1 2026 | $23.8m | $3.6m | 0.15 |
Biggest buyers
| AQR CAPITAL MANAGEMENT LLC | Added | +1.6m |
| UBS Group AG | Added | +498.6k |
| Schonfeld Strategic Advisors LLC | Added | +440.8k |
| Artisan Partners Limited Partnership | Added | +393.7k |
| Capital International Investors | New | +350.0k |
| ARGENT CAPITAL MANAGEMENT LLC | New | +239.8k |
| MENORA MIVTACHIM HOLDINGS LTD. | New | +198.7k |
| GOLDMAN SACHS GROUP INC | Added | +144.3k |
| FIFTH THIRD BANCORP | Added | +143.1k |
| Rivermont Capital Management LP | New | +139.7k |
Biggest sellers
| Cartenna Capital, LP | Sold out | -635.0k |
| T. Rowe Price Investment Management, Inc. | Reduced | -494.0k |
| Capital World Investors | Reduced | -441.4k |
| 59 North Capital Management, LP | Reduced | -406.7k |
| Southpoint Capital Advisors LP | Sold out | -400.0k |
| Kinetic Partners Management, LP | Reduced | -235.9k |
| Point72 Asset Management, L.P. | Sold out | -217.4k |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Reduced | -190.1k |
| KAYNE ANDERSON RUDNICK INVESTMENT MANAGEMENT LLC | Reduced | -180.9k |
| BANK OF NOVA SCOTIA | Sold out | -171.9k |
Biggest calls
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Added | $9.6m71.8k shares |
| CITADEL ADVISORS LLC | Reduced | $5.2m39.1k shares |
| JPMORGAN CHASE & CO | Reduced | $4.0m31.1k shares |
| JANE STREET GROUP, LLC | New | $3.0m22.8k shares |
| IMC-Chicago, LLC | New | $985.0k7.4k shares |
| Walleye Trading LLC | Added | $399.3k3.0k shares |
| TUDOR INVESTMENT CORP ET AL | New | $346.1k2.6k shares |
| SIMPLEX TRADING, LLC | New | $119.8k900 shares |
| GROUP ONE TRADING LLC | New | $79.9k600 shares |
| Burk Holdings LLC | New | $966400 shares |
Biggest puts
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Added | $1.8m13.6k shares |
| IMC-Chicago, LLC | New | $705.5k5.3k shares |
| TUDOR INVESTMENT CORP ET AL | New | $545.8k4.1k shares |
| Walleye Trading LLC | Reduced | $319.5k2.4k shares |
| CITADEL ADVISORS LLC | Reduced | $266.2k2.0k 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 Q1 2026
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 |
|---|---|---|---|---|---|
| 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 |
| Q4 2025 | 0 | — | 1 | $258.2k | — |
| Q1 2026 | 0 | — | 1 | $278.9k | — |
| Date | Insider | Trade | Value |
|---|---|---|---|
| 2026-02-13 | Elema Eric J EVP, CFO and Assistant Sec. | Sold | $278.9k1.8k 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, Q1 2026
| Manager | Shares | Change |
|---|---|---|
| PRICE T ROWE ASSOCIATES INC /MD/ 0.07% of their portfolio | 4.5m $600.8m | Added +46.9k |
| KAYNE ANDERSON RUDNICK INVESTMENT MANAGEMENT LLC 0.97% of their portfolio | 2.5m $331.0m | Reduced -180.9k |
| AQR CAPITAL MANAGEMENT LLC 0.13% of their portfolio | 2.3m $292.8m | Added +1.6m |
| WASATCH ADVISORS LP 1.88% of their portfolio | 2.1m $282.4m | Added +33.3k |
| BlackRock, Inc. 0.00% of their portfolio | 2.1m $275.0m | Added +83.6k |
| BAMCO INC /NY/ 0.83% of their portfolio | 2.1m $274.1m | Added +30.7k |
| VANGUARD CAPITAL MANAGEMENT LLC 0.01% of their portfolio | 2.0m $266.9m | First filing |
| VANGUARD PORTFOLIO MANAGEMENT LLC 0.01% of their portfolio | 1.8m $235.3m | First filing |
| T. Rowe Price Investment Management, Inc. 0.16% of their portfolio | 1.7m $225.5m | Reduced -494.0k |
| Conestoga Capital Advisors, LLC 2.94% of their portfolio | 1.1m $147.3m | Added +31.7k |
| 59 North Capital Management, LP 4.17% of their portfolio | 1.0m $139.7m | Reduced -406.7k |
| Capital World Investors 0.02% of their portfolio | 961.0k $127.9m | Reduced -441.4k |
| Artisan Partners Limited Partnership 0.18% of their portfolio | 837.0k $111.4m | Added +393.7k |
| Impax Asset Management Group plc 0.76% of their portfolio | 824.4k $109.7m | Reduced -91.5k |
| DIMENSIONAL FUND ADVISORS LP 0.02% of their portfolio | 805.3k $107.2m | Added +29.0k |
| GEODE CAPITAL MANAGEMENT, LLC 0.01% of their portfolio | 785.6k $104.6m | Added +19.1k |
| STATE STREET CORP 0.00% of their portfolio | 770.9k $102.6m | Added +13.1k |
| UBS Group AG 0.02% of their portfolio | 722.4k $96.2m | Added +498.6k |
| Amundi 0.03% of their portfolio | 703.8k $93.6m | Reduced -5.8k |
| AMERIPRISE FINANCIAL INC 0.02% of their portfolio | 670.5k $89.3m | Added +110.5k |
| GENEVA CAPITAL MANAGEMENT LLC 1.77% of their portfolio | 627.3k $83.5m | Reduced -50.8k |
| CITADEL ADVISORS LLC 0.06% of their portfolio | 594.7k $79.2m | Added +37.1k |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC 0.01% of their portfolio | 588.3k $78.3m | Added +26.3k |
| NEUBERGER BERMAN GROUP LLC 0.05% of their portfolio | 535.7k $71.3m | Reduced -63.5k |
| Schonfeld Strategic Advisors LLC 0.58% of their portfolio | 532.6k $70.9m | Added +440.8k |
| GW&K Investment Management, LLC 0.59% of their portfolio | 506.8k $67.5m | Reduced -3.7k |
| Stephens Investment Management Group LLC 0.80% of their portfolio | 436.0k $58.0m | Reduced -1.6k |
| Interval Partners, LP 1.98% of their portfolio | 432.2k $57.5m | Reduced -2.4k |
| JANUS HENDERSON GROUP PLC 0.03% of their portfolio | 410.9k $54.7m | Added +14.4k |
| AMERICAN CENTURY COMPANIES INC 0.03% of their portfolio | 392.9k $52.3m | Reduced -1.2k |
| MILLENNIUM MANAGEMENT LLC 0.04% of their portfolio | 372.7k $49.6m | Reduced -17.3k |
| WELLS FARGO & COMPANY/MN 0.01% of their portfolio | 367.2k $48.9m | Reduced -31.1k |
| BROWN ADVISORY INC 0.08% of their portfolio | 352.7k $46.9m | Reduced -47.7k |
| Capital International Investors 0.01% of their portfolio | 350.0k $46.6m | New |
| Driehaus Capital Management LLC 0.34% of their portfolio | 344.8k $45.9m | Added +100.4k |
| ACK Asset Management LLC 5.48% of their portfolio | 330.0k $43.9m | Unchanged |
| BANK OF AMERICA CORP /DE/ 0.00% of their portfolio | 280.2k $37.3m | Reduced -106.1k |
| VANGUARD FIDUCIARY TRUST CO 0.01% of their portfolio | 278.3k $37.0m | First filing |
| JANE STREET GROUP, LLC 0.04% of their portfolio | 277.1k $36.9m | Added +88.0k |
| SEI INVESTMENTS CO 0.03% of their portfolio | 254.9k $33.9m | Added +33.6k |
| Handelsbanken Fonder AB 0.11% of their portfolio | 252.5k $33.6m | Reduced -118.0k |
| Allspring Global Investments Holdings, LLC 0.05% of their portfolio | 245.8k $31.6m | Added +26.9k |
| NORTHERN TRUST CORP 0.00% of their portfolio | 244.6k $32.6m | Added +9.0k |
| GOLDMAN SACHS GROUP INC 0.00% of their portfolio | 244.0k $32.5m | Added +144.3k |
| GILDER GAGNON HOWE & CO LLC 0.38% of their portfolio | 240.4k $32.0m | Reduced -44.4k |
| ARGENT CAPITAL MANAGEMENT LLC 1.01% of their portfolio | 239.8k $31.9m | New |
| RAYMOND JAMES FINANCIAL INC 0.01% of their portfolio | 236.6k $31.5m | Reduced -16.4k |
| DF DENT & CO INC 0.60% of their portfolio | 236.1k $31.4m | Reduced -120.4k |
| ENVESTNET ASSET MANAGEMENT INC 0.01% of their portfolio | 231.5k $30.8m | Added +6.3k |
| JPMORGAN CHASE & CO 0.00% of their portfolio | 225.1k $29.3m | Added +51.2k |
| VOYA INVESTMENT MANAGEMENT LLC 0.03% of their portfolio | 219.6k $29.2m | Reduced -37.2k |
| MORGAN STANLEY 0.00% of their portfolio | 217.9k $29.0m | Reduced -28.1k |
| BLI - Banque de Luxembourg Investments 0.81% of their portfolio | 216.9k $27.0m | Unchanged |
| LOOMIS SAYLES & CO L P 0.04% of their portfolio | 213.1k $28.4m | Reduced -120.3k |
| Premier Fund Managers Ltd 1.89% of their portfolio | 205.4k $26.7m | Reduced -72.3k |
| CITIGROUP INC 0.02% of their portfolio | 203.2k $27.0m | Added +8.7k |
| MENORA MIVTACHIM HOLDINGS LTD. 0.13% of their portfolio | 198.7k $26.5m | New |
| Pembroke Management, LTD 3.80% of their portfolio | 197.5k $26.3m | Reduced -64.7k |
| ROYAL BANK OF CANADA 0.00% of their portfolio | 187.6k $25.0m | Added +36.6k |
| Fisher Asset Management, LLC 0.01% of their portfolio | 180.7k $24.1m | Added +9.2k |
| Nuveen, LLC 0.01% of their portfolio | 177.8k $23.7m | Added +92.5k |
| FRED ALGER MANAGEMENT, LLC 0.10% of their portfolio | 176.9k $23.5m | Reduced -75.4k |
| Bank of New York Mellon Corp 0.00% of their portfolio | 162.8k $21.7m | Added +3.4k |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC 0.00% of their portfolio | 152.8k $20.3m | Added +8.2k |
| Fenimore Asset Management Inc 0.44% of their portfolio | 148.2k $19.7m | Reduced -3.8k |
| FIFTH THIRD BANCORP 0.03% of their portfolio | 143.6k $19.1m | Added +143.1k |
| Qube Research & Technologies Ltd 0.03% of their portfolio | 143.2k $19.1m | Added +74.3k |
| Rivermont Capital Management LP 3.92% of their portfolio | 139.7k $18.6m | New |
| BNP PARIBAS FINANCIAL MARKETS 0.01% of their portfolio | 135.8k $18.1m | Added +34.0k |
| NATIXIS ADVISORS, LLC 0.02% of their portfolio | 128.5k $17.1m | Added +2.9k |
| JONES FINANCIAL COMPANIES LLLP 0.01% of their portfolio | 127.5k $16.6m | Added +126.2k |
| WCM INVESTMENT MANAGEMENT, LLC 0.04% of their portfolio | 119.1k $15.5m | Reduced -5.3k |
| NEW YORK STATE COMMON RETIREMENT FUND 0.02% of their portfolio | 115.8k $15.4m | Added +12.8k |
| IEQ CAPITAL, LLC 0.07% of their portfolio | 108.9k $14.5m | Added +92.0k |
| Zuckerman Investment Group, LLC 1.25% of their portfolio | 100.1k $13.3m | Added +1.9k |
| Rockefeller Capital Management L.P. 0.02% of their portfolio | 99.3k $13.2m | Added +18.3k |
| Swiss National Bank 0.01% of their portfolio | 88.0k $11.7m | Unchanged |
| SEB Asset Management AB 0.05% of their portfolio | 87.6k $11.7m | First filing |
| California Public Employees Retirement System 0.01% of their portfolio | 85.9k $11.4m | Added +6.4k |
| Cerity Partners LLC 0.02% of their portfolio | 84.2k $11.2m | Added +51.2k |
| Kinetic Partners Management, LP 0.63% of their portfolio | 84.1k $11.2m | Reduced -235.9k |
| McCollum Christoferson Group LLC 2.00% of their portfolio | 82.1k $6.7m | Added +28.2k |
| Mariner, LLC 0.01% of their portfolio | 81.5k $10.9m | Added +64.2k |
| SCOPUS ASSET MANAGEMENT, L.P. 0.33% of their portfolio | 80.0k $10.6m | New |
| STIFEL FINANCIAL CORP 0.01% of their portfolio | 78.4k $10.4m | Reduced -344 |
| BARCLAYS PLC 0.00% of their portfolio | 77.0k $10.3m | Added +13.4k |
| ROYCE & ASSOCIATES LP 0.10% of their portfolio | 76.1k $10.1m | Added +150 |
| CANADA PENSION PLAN INVESTMENT BOARD 0.01% of their portfolio | 75.7k $10.1m | Added +40.1k |
| Universal- Beteiligungs- und Servicegesellschaft mbH 0.02% of their portfolio | 73.7k $9.8m | Added +5.7k |
| Summit Creek Advisors LLC 1.74% of their portfolio | 63.7k $8.5m | Reduced -9.7k |
| STATE OF WISCONSIN INVESTMENT BOARD 0.02% of their portfolio | 63.4k $8.4m | Reduced -4.0k |
| CWM, LLC 0.02% of their portfolio | 63.1k $8.4m | Added +42.0k |
| Pier Capital, LLC 1.28% of their portfolio | 58.4k $7.8m | Added +28.0k |
| SG Americas Securities, LLC 0.01% of their portfolio | 58.3k $7.8m | Reduced -46.2k |
| PUBLIC EMPLOYEES RETIREMENT SYSTEM OF OHIO 0.02% of their portfolio | 56.7k $7.6m | Added +6.9k |
| Crown Oak Advisors, LLC 3.68% of their portfolio | 55.1k $7.3m | Added +370 |
| Gotham Asset Management, LLC 0.02% of their portfolio | 52.8k $7.0m | Added +26.5k |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM 0.01% of their portfolio | 52.0k $6.9m | Added +9.6k |
| EULAV Asset Management 0.22% of their portfolio | 51.1k $6.8m | Unchanged |
| NICHOLAS COMPANY, INC. 0.12% of their portfolio | 47.8k $6.4m | Reduced -237 |