SITEONE LANDSCAPE SUPPLY INC (SITE) Institutional Shareholders
SITEONE LANDSCAPE SUPPLY INC (SITE) is currently reported in institutional portfolios tracked by InsiderSet based on the latest available SEC Form 13F filings for the quarter ended June 30, 2026. The institutional investors covered on this page collectively reported approximately $5.24B in SITE holdings during the latest filing period.
Price T Rowe Associates Inc is currently the largest disclosed institutional shareholder of SITE tracked by InsiderSet, reporting ownership valued at approximately $511.88M in its June 30, 2026 SEC Form 13F filing. Based on current market prices and the latest disclosed share count, the position is now estimated to be worth approximately $395.60M, representing an estimated loss of -22.72% since the filing period.
The top 10 institutional shareholders tracked on this page collectively account for approximately 45% of the total disclosed SITE value among the investors covered in this analysis. Major shareholders include Price T Rowe Associates Inc, 59 North Capital Management, Lp, Kayne Anderson Rudnick Investment Management Llc, and several other long-term asset managers with concentrated positions in SITEONE LANDSCAPE SUPPLY INC (SITE).
This page ranks the largest institutional SITE shareholders using publicly disclosed SEC Form 13F data, including reported values, estimated current holding values, portfolio allocation percentages, ownership concentration metrics, and historical holding changes across major hedge funds and investment firms.
Institutional Holders
373
Total Reported Value
$5.24B
Largest Holder
Price T Rowe Associates Inc
Largest Position
$511.88M
Insider Transactions (90d)
2
Latest Filing Quarter
Q2 2026
New Institutional Positions
39
Funds Exiting Positions
1
| Name | Investor/Manager | Portfolio % | Quantity | Reported Balance | Current Estimated Value | Gain/loss Since Filing | Estimated Portfolio Performance |
|---|---|---|---|---|---|---|---|
| Price T Rowe Associates Inc | 0.05% | 4,474,072 | $511,879,000 | $395,597,446 | -$116,281,554 | -22.72% | |
| 59 North Capital Management, Lp | 5.24% | 2,057,212 | $235,365,625 | $181,898,685 | -$53,466,940 | -22.72% | |
| Kayne Anderson Rudnick Investment Management Llc | 0.73% | 2,048,143 | $234,328,041 | $181,096,804 | -$53,231,237 | -22.72% | |
| Bamco Inc | 0.35% | 2,028,799 | $232,114,894 | $179,386,408 | -$52,728,486 | -22.72% | |
| Vanguard Capital Management Llc | 0.00% | 2,004,438 | $229,327,752 | $177,232,408 | -$52,095,344 | -22.72% | |
| Blackrock, Inc. | 0.00% | 1,934,754 | $221,355,207 | $171,070,949 | -$50,284,258 | -22.72% | |
| Vanguard Portfolio Management Llc | 0.01% | 1,727,897 | $197,688,696 | $152,780,653 | -$44,908,043 | -22.72% | |
| T. Rowe Price Investment Management, Inc. | 0.12% | 1,653,067 | $189,128,000 | $146,164,184 | -$42,963,816 | -22.72% | |
| Wasatch Advisors Lp | 0.95% | 1,269,677 | $145,263,746 | $112,264,840 | -$32,998,906 | -22.72% | |
| Aqr Capital Management Llc | 0.05% | 1,234,583 | $140,470,861 | $109,161,829 | -$31,309,032 | -22.29% | |
| Dimensional Fund Advisors Lp | 0.02% | 1,062,370 | $121,548,037 | $93,934,755 | -$27,613,282 | -22.72% | |
| Capital World Investors | 0.01% | 991,818 | $113,473,897 | $87,696,548 | -$25,777,349 | -22.72% | |
| Citadel Advisors Llc | 0.06% | 983,646 | $112,538,939 | $86,973,979 | -$25,564,960 | -22.72% | |
| Conestoga Capital Advisors, Llc | 2.39% | 960,286 | $109,866,321 | $84,908,488 | -$24,957,833 | -22.72% | |
| Impax Asset Management Group Plc | 0.62% | 836,410 | $95,693,668 | $73,955,372 | -$21,738,296 | -22.72% | |
| State Street Corp | 0.00% | 793,748 | $90,812,709 | $70,183,198 | -$20,629,511 | -22.72% | |
| Geode Capital Management, Llc | 0.00% | 756,823 | $86,612,853 | $66,918,290 | -$19,694,563 | -22.74% | |
| Neuberger Berman Group Llc | 0.05% | 711,289 | $81,378,574 | $62,892,173 | -$18,486,401 | -22.72% | |
| Qube Research & Technologies Ltd | 0.08% | 630,595 | $72,146,374 | $55,757,210 | -$16,389,164 | -22.72% | |
| Charles Schwab Investment Management Inc | 0.01% | 586,976 | $67,155,924 | $51,900,418 | -$15,255,506 | -22.72% | |
| Stephens Investment Management Group Llc | 0.62% | 502,344 | $57,473,177 | $44,417,256 | -$13,055,921 | -22.72% | |
| Geneva Capital Management Llc | 1.26% | 481,402 | $55,077,231 | $42,565,565 | -$12,511,666 | -22.72% | |
| Janus Henderson Group Plc | 0.03% | 410,854 | $54,684,973 | $36,327,711 | -$18,357,262 | -33.57% | |
| Gw&K Investment Management, Llc | 0.42% | 471,553 | $53,951,000 | $41,694,716 | -$12,256,284 | -22.72% | |
| Balyasny Asset Management L.P. | 0.10% | 456,856 | $52,268,895 | $40,395,208 | -$11,873,687 | -22.72% | |
| American Century Companies Inc | 0.02% | 440,385 | $50,384,743 | $38,938,842 | -$11,445,901 | -22.72% | |
| Bank Of America Corp | 0.00% | 428,517 | $49,026,629 | $37,889,473 | -$11,137,156 | -22.72% | |
| Massachusetts Financial Services Co | 0.01% | 403,430 | $46,156,426 | $35,671,281 | -$10,485,145 | -22.72% | |
| Ameriprise Financial Inc | 0.01% | 402,979 | $46,105,195 | $35,631,403 | -$10,473,792 | -22.72% | |
| Ubs Group Ag | 0.01% | 383,667 | $43,895,342 | $33,923,836 | -$9,971,506 | -22.72% | |
| Brown Advisory Inc | 0.06% | 363,716 | $41,612,743 | $32,159,769 | -$9,452,974 | -22.72% | |
| Capital International Investors | 0.01% | 360,721 | $41,270,090 | $31,894,951 | -$9,375,139 | -22.72% | |
| Ack Asset Management Llc | 4.41% | 330,000 | $37,755,300 | $29,178,600 | -$8,576,700 | -22.72% | |
| Wells Fargo & Company/Mn | 0.01% | 327,030 | $37,415,506 | $28,915,993 | -$8,499,513 | -22.72% | |
| Southpoint Capital Advisors Lp | 0.78% | 300,000 | $34,323,000 | $26,526,000 | -$7,797,000 | -22.72% | |
| Vanguard Fiduciary Trust Co | 0.01% | 280,522 | $32,094,522 | $24,803,755 | -$7,290,767 | -22.72% | |
| Goldman Sachs Group Inc | 0.00% | 263,320 | $30,126,483 | $23,282,754 | -$6,843,729 | -22.72% | |
| Morgan Stanley | 0.00% | 259,787 | $29,722,466 | $22,970,367 | -$6,752,099 | -22.72% | |
| Gilder Gagnon Howe & Co Llc | 0.30% | 255,521 | $29,234,112 | $22,593,167 | -$6,640,945 | -22.72% | |
| Northern Trust Corp | 0.00% | 245,162 | $28,048,984 | $21,677,224 | -$6,371,760 | -22.72% | |
| Millennium Management Llc | 0.02% | 215,835 | $24,693,682 | $19,084,131 | -$5,609,551 | -22.72% | |
| Handelsbanken Fonder Ab | 0.07% | 206,741 | $23,653,000 | $18,280,039 | -$5,372,961 | -22.72% | |
| Envestnet Asset Management Inc | 0.01% | 204,231 | $23,366,044 | $18,058,105 | -$5,307,939 | -22.72% | |
| Allspring Global Investments Holdings, Llc | 0.04% | 211,130 | $23,182,074 | $18,668,115 | -$4,513,959 | -19.47% | |
| Raymond James Financial Inc | 0.01% | 200,514 | $22,940,804 | $17,729,448 | -$5,211,356 | -22.72% | |
| Jpmorgan Chase & Co | 0.00% | 184,612 | $21,419,847 | $16,323,393 | -$5,096,454 | -23.79% | |
| Artisan Partners Limited Partnership | 0.03% | 185,936 | $21,272,938 | $16,440,461 | -$4,832,477 | -22.72% | |
| Bank Of New York Mellon Corp | 0.00% | 182,328 | $20,860,088 | $16,121,442 | -$4,738,646 | -22.72% | |
| Bli - Banque De Luxembourg Investments | 0.73% | 180,500 | $20,754,202 | $15,959,810 | -$4,794,392 | -23.10% | |
| Nuveen, Llc | 0.00% | 177,871 | $20,350,221 | $15,727,354 | -$4,622,867 | -22.72% |
Frequently asked questions about SITE
Who owns the most SITE stock?
The largest holders of SITE are typically major institutional investors such as asset managers and hedge funds reporting on Form 13F. The table above ranks tracked superinvestors by reported position size using the latest available filings for SITEONE LANDSCAPE SUPPLY INC (SITE).
Is SITE widely held by superinvestors?
Many widely followed stocks like SITE appear across numerous superinvestor portfolios because of liquidity, index inclusion, and fundamentals. The holder count and table above show how broadly SITE is represented among the institutional managers we track.
What do “Current Estimated Value”, “Gain/loss Since Filing”, and “Estimated Portfolio Performance” mean?
Current Estimated Value is reported share quantity from the latest 13F times our most recent split-adjusted U.S. session close. Gain/loss Since Filing is that estimate minus the reported 13F dollar value; Estimated Portfolio Performance is that difference as a percent of the reported value. Green means the estimate is above the filing value; red means below (not purchase cost). If many filers share the same implied filing price per share, the performance % may match across rows. These are not official fund marks or live quotes.