SiteOne Landscape Supply, Inc.
MX ˙ BMV ˙ US82982L1035
SecurityMX:SITE / SiteOne Landscape Supply, Inc.
InstitutionState Street Corp
Latest Disclosed Ownership770,869 shares
Latest Disclosed Value $ 102,610,373
State Street Corp reports 1.72% increase in ownership of SITE / SiteOne Landscape Supply, Inc.

On May 15, 2026 - State Street Corp filed a 13F-HR form disclosing ownership of 770,869 shares of SiteOne Landscape Supply, Inc. (MX:SITE) valued at $102,610,373 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 757,807 shares of SiteOne Landscape Supply, Inc.. This represents a change in shares of 1.72% 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 770,869 13,062 1.72 102,610 8.71 0.0035
2026-02-13 2025-12-31 13F SITEONE LANDSCAPE SUPPLY COM 82982L103 757,807 -7,176 -0.94 94,392 -4.20 0.0032
2025-11-14 2025-09-30 13F SITEONE LANDSCAPE SUPPLY COM 82982L103 764,983 -12,371 -1.59 98,530 4.80 0.0034
2025-08-14 2025-06-30 13F SITEONE LANDSCAPE SUPPLY COM 82982L103 777,354 12,766 1.67 94,013 1.25 0.0035
2025-05-15 2025-03-31 13F SITEONE LANDSCAPE SUPPLY COM 82982L103 764,588 -17,381 -2.22 92,852 -9.89 0.0038
2025-02-14 2024-12-31 13F SITEONE LANDSCAPE SUPPLY COM 82982L103 781,969 11,571 1.50 103,040 -11.37 0.0041
2024-11-14 2024-09-30 13F SITEONE LANDSCAPE SUPPLY COM 82982L103 770,398 -6,609 -0.85 116,261 23.24 0.0047
2024-08-14 2024-06-30 13F SITEONE LANDSCAPE SUPPLY COM 82982L103 777,007 27,737 3.70 94,336 -27.87 0.0041
2024-05-15 2024-03-31 13F SITEONE LANDSCAPE SUPPLY COM 82982L103 749,270 10,844 1.47 130,785 8.99 0.0058
2024-02-14 2023-12-31 13F SITEONE LANDSCAPE SUPPLY COM 82982L103 738,426 42,200 6.06 119,994 5.44 0.0058
2023-11-14 2023-09-30 13F SITEONE LANDSCAPE SUPPLY COM 82982L103 696,226 6,787 0.98 113,798 -1.37 0.0063
2023-08-14 2023-06-30 13F SITEONE LANDSCAPE SUPPLY COM 82982L103 689,439 -16,556 -2.35 115,385 19.41 0.0061
2023-05-15 2023-03-31 13F SITEONE LANDSCAPE SUPPLY COM 82982L103 705,995 15,024 2.17 96,630 19.20 0.0055
2023-05-15 2022-12-31 13F/A-99 SITEONE LANDSCAPE SUPPLY COM 82982L103 690,971 20,230 3.02 81,065 16.05 0.0048
2023-05-15 2022-12-31 13F SITEONE LANDSCAPE SUPPLY COM 82982L103 690,971 20,230 81,065 0.0048
2022-11-15 2022-09-30 13F SITEONE LANDSCAPE SUPPLY COM 82982L103 670,741 1,433 0.21 69,851 -12.20 0.0044
2022-08-15 2022-06-30 13F SITEONE LANDSCAPE SUPPLY COM 82982L103 669,308 10,816 1.64 79,561 -25.28 0.0048
2022-05-16 2022-03-31 13F SITEONE LANDSCAPE SUPPLY COM 82982L103 658,492 24,495 3.86 106,472 -30.68 0.0053
2022-02-14 2021-12-31 13F SITEONE LANDSCAPE SUPPLY COM 82982L103 633,997 10,470 1.68 153,605 23.50 0.0073
2021-11-15 2021-09-30 13F SITEONE LANDSCAPE SUPPLY COM 82982L103 623,527 -2,403 -0.38 124,375 17.40 0.0066
2021-08-16 2021-06-30 13F SITEONE LANDSCAPE SUPPLY COM 82982L103 625,930 -207,175 -24.87 105,945 -25.52 0.0056
2021-07-09 2021-03-31 13F/A-1 SITEONE LANDSCAPE SUPPLY COM 82982L103 833,105 -22,253 -2.60 142,244 4.83 0.0082
2021-05-17 2021-03-31 13F SITEONE LANDSCAPE SUPPLY COM 82982L103 833,105 -22,253 142,244 0.0082
2021-02-16 2020-12-31 13F SITEONE LANDSCAPE SUPPLY COM 82982L103 855,358 11,294 1.34 135,685 31.82 0.0083
2020-11-10 2020-09-30 13F SITEONE LANDSCAPE SUPPLY COM 82982L103 844,064 -20,358 -2.36 102,934 4.48 0.0070
2020-08-14 2020-06-30 13F SITEONE LANDSCAPE SUPPLY COM 82982L103 864,422 33,738 4.06 98,518 61.10 0.0072
2020-06-19 2020-03-31 13F/A-1 SITEONE LANDSCAPE SUPPLY COM 82982L103 830,684 -8,063 -0.96 61,155 -19.57 0.0053
2020-05-11 2020-03-31 13F SITEONE LANDSCAPE SUPPLY COM 82982L103 830,684 -4,667,066 61,155 5,370.6404
2020-02-06 2019-12-31 13F SITEONE LANDSCAPE SUPPLY COM 82982L103 838,747 7,749 0.93 76,032 23.61 0.0052
2019-11-14 2019-09-30 13F SITEONE LANDSCAPE SUPPLY COM 82982L103 830,998 8,214 1.00 61,510 7.88 0.0046
2019-08-14 2019-06-30 13F SITEONE LANDSCAPE SUPPLY COM 82982L103 822,784 24,981 3.13 57,019 25.06 0.0043
2019-05-15 2019-03-31 13F SITEONE LANDSCAPE SUPPLY COM 82982L103 797,803 16,896 2.16 45,594 5.64 0.0036
2019-02-12 2018-12-31 13F SITEONE LANDSCAPE SUPPLY COM 82982L103 780,907 -8,460 -1.07 43,161 -27.43 0.0039
2018-11-09 2018-09-30 13F SITEONE LANDSCAPE SUPPLY Common equity shares 82982L103 789,367 41,554 5.56 59,471 -5.29 0.0046
2018-11-09 2018-09-30 13F DDR Real Estate Investment Trust 23317H854 4,188,552 47,792 56,083 0.0043
2018-08-14 2018-06-30 13F SITEONE LANDSCAPE SUPPLY Common equity shares 82982L103 747,813 73,019 10.82 62,793 20.80 0.0052
2018-08-14 2018-06-30 13F DDR Real Estate Investment Trust 23317H854 4,140,760 -4,482,326 74,121 0.0062
2018-05-15 2018-03-31 13F SITEONE LANDSCAPE SUPPLY Common equity shares 82982L103 674,794 -2,239 -0.33 51,982 0.10 0.0044
2018-05-15 2018-03-31 13F DDR Real Estate Investment Trust 23317H102 8,623,086 -1,323,443 63,209 0.0054
2018-02-14 2017-12-31 13F SITEONE LANDSCAPE SUPPLY Common equity shares 82982L103 677,033 35,816 5.59 51,929 39.38 0.0042
2018-02-14 2017-12-31 13F DDR Real Estate Investment Trust 23317H102 9,946,529 373,061 89,115 0.0072
2017-11-14 2017-09-30 13F SITEONE LANDSCAPE SUPPLY Common equity shares 82982L103 641,217 23,143 3.74 37,257 15.79 0.0032
2017-11-14 2017-09-30 13F DDR Real Estate Investment Trust 23317H102 9,573,468 -50,086 87,696 0.0076
2017-08-14 2017-06-30 13F SITEONE LANDSCAPE SUPPLY Common equity shares 82982L103 618,074 402,896 187.24 32,177 208.83 0.0028
2017-08-14 2017-06-30 13F DDR Real Estate Investment Trust 23317H102 9,623,554 36,430 87,284 0.0077
2017-05-15 2017-03-31 13F SITEONE LANDSCAPE SUPPLY Common equity shares 82982L103 215,178 28,535 15.29 10,419 60.76 0.0009
2017-05-15 2017-03-31 13F DDR Real Estate Investment Trust 23317H102 9,587,124 188,347 120,130 0.0107
2017-02-09 2016-12-31 13F SITEONE LANDSCAPE SUPPLY Common equity shares 82982L103 186,643 15,648 9.15 6,481 5.50 0.0006
2017-02-09 2016-12-31 13F DDR Real Estate Investment Trust 23317H102 9,398,777 -10,028 143,519 0.0135
2017-01-13 2016-09-30 13F/A-1 SITEONE LANDSCAPE SUPPLY Common equity shares 82982L103 170,995 23,021 15.56 6,143 22.13 0.0006
2017-01-13 2016-09-30 13F/A-1 DDR Real Estate Investment Trust 23317H102 9,408,805 498,665 163,993 0.0165
2016-11-14 2016-09-30 13F SITEONE LANDSCAPE SUPPLY Common equity shares 82982L103 170,995 6,143
2016-11-14 2016-09-30 13F DDR Real Estate Investment Trust 23317H102 9,380,105 163,493
2016-08-12 2016-06-30 13F SITEONE LANDSCAPE SUPPLY Common equity shares 82982L103 147,974 -8,611,817 -98.31 5,030 -96.77 0.0005
2016-08-12 2016-06-30 13F DDR Real Estate Investment Trust 23317H102 8,910,140 150,349 161,630 0.0174
2016-05-20 2016-03-31 13F/A-1 DDR Real Estate Investment Trust 23317H102 8,759,791 309,326 3.66 155,838 9.51 0.0168
2016-05-12 2016-03-31 13F DDR Real Estate Investment Trust 23317H102 8,759,791 155,838
2016-02-16 2015-12-31 13F DDR Real Estate Investment Trust 23317H102 8,450,465 -24,190 -0.29 142,308 9.18 0.0156
2015-11-16 2015-09-30 13F DDR Real Estate Investment Trust 23317H102 8,474,655 -284,991 -3.25 130,344 -3.75 0.0152
2015-08-13 2015-06-30 13F DDR Real Estate Investment Trust 23317H102 8,759,646 4,411,513 101.46 135,423 67.27 0.0145
2015-05-15 2015-03-31 13F DDR Real Estate Investment Trust 23317H102 4,348,133 -12,748 -0.29 80,963 1.12 0.0083
2015-02-11 2014-12-31 13F DDR Real Estate Investment Trust 23317H102 4,360,881 -102,400 -2.29 80,063 7.22 0.0080
2014-11-12 2014-09-30 13F/A-1 DDR Real Estate Investment Trust 23317H102 4,463,281 -114,250 -2.50 74,672 -7.47 0.0080
2014-11-10 2014-09-30 13F DDR Real Estate Investment Trust 23317H102 4,463,281 74,672
2014-08-12 2014-06-30 13F DDR Real Estate Investment Trust 23317H102 4,577,531 346,261 8.18 80,704 15.73 0.0087
2014-05-15 2014-03-31 13F/A-1 DDR Real Estate Investment Trust 23317H102 4,231,270 117,269 2.85 69,734 10.27 0.0079
2014-05-13 2014-03-31 13F DDR Real Estate Investment Trust 23317H102 4,232,759 69,759
2014-02-06 2013-12-31 13F/A-1 DDR Real Estate Investment Trust 23317H102 4,114,001 463,726 12.70 63,238 10.28 0.0070
2014-02-06 2013-12-31 13F DDR Real Estate Investment Trust 23317H102 3,416,028 53,498
2013-11-12 2013-09-30 13F DDR Real Estate Investment Trust 23317H102 3,650,275 29,693 0.82 57,344 -4.88 0.0071
2013-08-08 2013-06-30 13F DDR Real Estate Investment Trust 23317H102 3,620,582 3,620,582 60,284 0.0079
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.