SiteOne Landscape Supply, Inc.
MX ˙ BMV ˙ US82982L1035
SecurityMX:SITE / SiteOne Landscape Supply, Inc.
InstitutionAlliancebernstein L.p.
Latest Disclosed Ownership27,807 shares
Latest Disclosed Value $ 3,463,640
Alliancebernstein L.p. reports 45.07% decrease in ownership of SITE / SiteOne Landscape Supply, Inc.

On May 15, 2026 - Alliancebernstein L.p. filed a 13F-HR form disclosing ownership of 27,807 shares of SiteOne Landscape Supply, Inc. (MX:SITE) valued at $3,463,640 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 50,627 shares of SiteOne Landscape Supply, Inc.. This represents a change in shares of -45.07% during the quarter.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date		 Effective
Date		Form Security Class ID Avg Price
Paid (Est)		 Reported
Shares		 ΔShares ΔShares
(%)		 Reported
Value
(x1000)		 ΔValue
(%)		 Alloc
(%)		 ΔAlloc ΔAlloc (%) Cost Basis
(x1000)		 Unrealized
Gain/Loss
(x1000)
2026-05-15 2026-03-31 13F SITEONE LANDSCAPE SUPPLY COM 82982L103 27,807 -22,820 -45.07 3,464 -45.08 0.0011
2026-02-17 2025-12-31 13F SITEONE LANDSCAPE SUPPLY COM 82982L103 50,627 21,423 73.36 6,306 67.67 0.0020
2025-11-14 2025-09-30 13F SITEONE LANDSCAPE SUPPLY COM 82982L103 29,204 524 1.83 3,761 8.45 0.0012
2025-08-14 2025-06-30 13F SITEONE LANDSCAPE SUPPLY COM 82982L103 28,680 10,903 61.33 3,469 60.70 0.0011
2025-05-15 2025-03-31 13F SITEONE LANDSCAPE SUPPLY COM 82982L103 17,777 155 0.88 2,159 -7.06 0.0008
2025-02-12 2024-12-31 13F SITEONE LANDSCAPE SUPPLY COM 82982L103 17,622 -671 -3.67 2,322 -15.87 0.0008
2024-11-14 2024-09-30 13F SITEONE LANDSCAPE SUPPLY COM 82982L103 18,293 -1,570 -7.90 2,761 14.48 0.0009
2024-08-14 2024-06-30 13F SITEONE LANDSCAPE SUPPLY COM 82982L103 19,863 -924,957 -97.90 2,412 -98.54 0.0008
2024-05-14 2024-03-31 13F SITEONE LANDSCAPE SUPPLY COM 82982L103 944,820 21,018 2.28 164,918 9.86 0.0584
2024-02-14 2023-12-31 13F SITEONE LANDSCAPE SUPPLY COM 82982L103 923,802 -11,627 -1.24 150,118 -1.82 0.0578
2023-11-14 2023-09-30 13F SITEONE LANDSCAPE SUPPLY COM 82982L103 935,429 -3,583 -0.38 152,896 -2.71 0.0650
2023-08-15 2023-06-30 13F SITEONE LANDSCAPE SUPPLY COM 82982L103 939,012 -123,770 -11.65 157,153 8.04 0.0641
2023-05-15 2023-03-31 13F SITEONE LANDSCAPE SUPPLY COM 82982L103 1,062,782 -115,847 -9.83 145,463 5.20 0.0623
2023-02-15 2022-12-31 13F SITEONE LANDSCAPE SUPPLY COM 82982L103 1,178,629 -59,295 -4.79 138,277 7.26 0.0622
2022-11-15 2022-09-30 13F SITEONE LANDSCAPE SUPPLY COM 82982L103 1,237,924 50,407 4.24 128,917 -8.67 0.0624
2022-08-15 2022-06-30 13F SITEONE LANDSCAPE SUPPLY COM 82982L103 1,187,517 63,271 5.63 141,160 -22.35 0.0645
2022-05-13 2022-03-31 13F SITEONE LANDSCAPE SUPPLY COM 82982L103 1,124,246 80,384 7.70 181,779 -28.12 0.0701
2022-02-14 2021-12-31 13F SITEONE LANDSCAPE SUPPLY COM 82982L103 1,043,862 -222,612 -17.58 252,907 0.11 0.0894
2021-11-10 2021-09-30 13F SITEONE LANDSCAPE SUPPLY COM 82982L103 1,266,474 -271,637 -17.66 252,624 -2.96 0.0997
2021-07-30 2021-06-30 13F SITEONE LANDSCAPE SUPPLY COM 82982L103 1,538,111 87,981 6.07 260,341 5.15 0.1045
2021-05-06 2021-03-31 13F SITEONE LANDSCAPE SUPPLY COM 82982L103 1,450,130 32,239 2.27 247,595 10.08 0.1086
2021-02-08 2020-12-31 13F SITEONE LANDSCAPE SUPPLY COM 82982L103 1,417,891 -22,173 -1.54 224,920 28.07 0.1061
2020-11-12 2020-09-30 13F SITEONE LANDSCAPE SUPPLY COM 82982L103 1,440,064 -34,651 -2.35 175,616 4.49 0.0945
2020-08-13 2020-06-30 13F SITEONE LANDSCAPE SUPPLY COM 82982L103 1,474,715 2,812 0.19 168,073 55.10 0.0988
2020-05-14 2020-03-31 13F SITEONE LANDSCAPE SUPPLY COM 82982L103 1,471,903 -133,344 -8.31 108,361 -25.53 0.0777
2020-02-18 2019-12-31 13F SITEONE LANDSCAPE SUPPLY COM 82982L103 1,605,247 3,782 0.24 145,516 22.76 0.0827
2019-11-14 2019-09-30 13F SITEONE LANDSCAPE SUPPLY COM 82982L103 1,601,465 253,599 18.81 118,540 26.91 0.0738
2019-08-14 2019-06-30 13F SITEONE LANDSCAPE SUPPLY COM 82982L103 1,347,866 -39,259 -2.83 93,407 17.83 0.0580
2019-05-14 2019-03-31 13F SITEONE LANDSCAPE SUPPLY COM 82982L103 1,387,125 -61,138 -4.22 79,274 -0.96 0.0516
2019-02-13 2018-12-31 13F SITEONE LANDSCAPE SUPPLY COM 82982L103 1,448,263 113,730 8.52 80,045 -20.39 0.0594
2018-11-08 2018-09-30 13F SITEONE LANDSCAPE SUPPLY COM 82982L103 1,334,533 2,919 0.22 100,544 -10.08 0.0657
2018-11-08 2018-09-30 13F DDR COM 23317H854 181,964 -5,573 2,436 0.0016
2018-08-13 2018-06-30 13F SITEONE LANDSCAPE SUPPLY COM 82982L103 1,331,614 -110,389 -7.66 111,816 0.65 0.0778
2018-08-13 2018-06-30 13F DDR COM 23317H854 187,537 -194,941 3,357 0.0023
2018-05-14 2018-03-31 13F SITEONE LANDSCAPE SUPPLY COM 82982L103 1,442,003 -192,892 -11.80 111,092 -11.41 0.0803
2018-05-14 2018-03-31 13F DDR COM 23317H102 382,478 735 2,804 0.0020
2018-02-13 2017-12-31 13F SITEONE LANDSCAPE SUPPLY COM 82982L103 1,634,895 -252,864 -13.39 125,396 14.33 0.0897
2018-02-13 2017-12-31 13F DDR COM 23317H102 381,743 -10,570 3,420 0.0024
2017-11-13 2017-09-30 13F SITEONE LANDSCAPE SUPPLY COM 82982L103 1,887,759 428,299 29.35 109,679 44.35 0.0822
2017-11-13 2017-09-30 13F DDR COM 23317H102 392,313 -29,610 3,594 0.0027
2017-08-10 2017-06-30 13F SITEONE LANDSCAPE SUPPLY COM 82982L103 1,459,460 1,009,392 224.28 75,979 248.72 0.0588
2017-08-10 2017-06-30 13F DDR COM 23317H102 421,923 6,058 3,827 0.0030
2017-05-11 2017-03-31 13F SITEONE LANDSCAPE SUPPLY COM 82982L103 450,068 -71,635 -13.73 21,788 20.25 0.0173
2017-05-11 2017-03-31 13F DDR COM 23317H102 415,865 -9,670 5,211 0.0041
2017-02-13 2016-12-31 13F SITEONE LANDSCAPE SUPPLY COM 82982L103 521,703 -41,996 -7.45 18,119 -10.54 0.0151
2017-02-13 2016-12-31 13F DDR COM 23317H102 425,535 -1,093 6,498 0.0054
2016-11-10 2016-09-30 13F SITEONE LANDSCAPE SUPPLY COM 82982L103 563,699 54,117 10.62 20,254 16.93 0.0171
2016-11-10 2016-09-30 13F DDR COM 23317H102 426,628 -3,062,259 7,436 0.0063
2016-08-11 2016-06-30 13F SITEONE LANDSCAPE SUPPLY COM 82982L103 509,582 -3,275,111 -86.54 17,321 -74.27 0.0149
2016-08-11 2016-06-30 13F DDR COM 23317H102 3,488,887 -295,806 63,288 0.0545
2016-05-13 2016-03-31 13F DDR COM 23317H102 3,784,693 -87,861 -2.27 67,330 3.24 0.0572
2016-02-16 2015-12-31 13F/A-1 DDR COM 23317H102 3,872,554 -61,569 -1.56 65,214 7.78 0.0555
2016-02-12 2015-12-31 13F DDR COM 23317H102 3,872,554 59,560
2015-11-13 2015-09-30 13F DDR COM 23317H102 3,934,123 89,397 2.33 60,507 1.80 0.0519
2015-08-14 2015-06-30 13F DDR COM 23317H102 3,844,726 109,448 2.93 59,439 -14.54 0.0491
2015-05-13 2015-03-31 13F DDR COM 23317H102 3,735,278 -28,387 -0.75 69,551 0.65 0.0564
2015-02-13 2014-12-31 13F DDR COM 23317H102 3,763,665 -159,785 -4.07 69,101 5.27 0.0574
2014-11-13 2014-09-30 13F DDR COM 23317H102 3,923,450 -803,498 -17.00 65,639 -21.24 0.0553
2014-08-13 2014-06-30 13F DDR COM 23317H102 4,726,948 118,409 2.57 83,336 9.73 0.0702
2014-05-13 2014-03-31 13F DDR COM 23317H102 4,608,539 10,408 0.23 75,949 7.47 0.0656
2014-02-13 2013-12-31 13F DDR COM 23317H102 4,598,131 3,126,019 212.35 70,673 205.59 0.0632
2013-11-14 2013-09-30 13F DDR COM 23317H102 1,472,112 691,909 88.68 23,127 78.04 0.0228
2013-08-13 2013-06-30 13F DDR COM 23317H102 780,203 780,203 12,990 0.0138
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.