SiteOne Landscape Supply, Inc.
MX ˙ BMV ˙ US82982L1035
SecurityMX:SITE / SiteOne Landscape Supply, Inc.
InstitutionPembroke Management, LTD
Latest Disclosed Ownership197,474 shares
Latest Disclosed Value $ 26,285,764
Pembroke Management, LTD reports 24.66% decrease in ownership of SITE / SiteOne Landscape Supply, Inc.

On May 14, 2026 - Pembroke Management, LTD filed a 13F-HR form disclosing ownership of 197,474 shares of SiteOne Landscape Supply, Inc. (MX:SITE) valued at $26,285,764 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 12, 2026 disclosing 262,126 shares of SiteOne Landscape Supply, Inc.. This represents a change in shares of -24.66% 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)
2026-05-14 2026-03-31 13F SITEONE LANDSCAPE SUPPLY COM 82982L103 197,474 -64,652 -24.66 26,286 -19.49 3.8016
2026-02-12 2025-12-31 13F SITEONE LANDSCAPE SUPPLY COM 82982L103 262,126 -42,236 -13.88 32,650 -16.71 3.3732
2025-10-28 2025-09-30 13F SITEONE LANDSCAPE SUPPLY COM 82982L103 304,362 35,264 13.10 39,202 20.46 3.8898
2025-08-07 2025-06-30 13F SITEONE LANDSCAPE SUPPLY COM 82982L103 269,098 62,434 30.21 32,545 29.67 3.9369
2025-05-15 2025-03-31 13F SITEONE LANDSCAPE SUPPLY COM 82982L103 206,664 -3,344 -1.59 25,097 -9.31 3.6597
2025-01-31 2024-12-31 13F SITEONE LANDSCAPE SUPPLY COM 82982L103 210,008 -1,508 -0.71 27,673 -13.31 3.4505
2024-10-29 2024-09-30 13F SITEONE LANDSCAPE SUPPLY COM 82982L103 211,516 28,117 15.33 31,920 43.35 4.0709
2024-08-01 2024-06-30 13F SITEONE LANDSCAPE SUPPLY COM 82982L103 183,399 21,246 13.10 22,266 -21.33 2.9912
2024-05-08 2024-03-31 13F SITEONE LANDSCAPE SUPPLY COM 82982L103 162,153 -7,940 -4.67 28,304 2.40 3.3303
2024-02-13 2023-12-31 13F SITEONE LANDSCAPE SUPPLY COM 82982L103 170,093 26,217 18.22 27,640 17.54 3.4315
2023-11-08 2023-09-30 13F SITEONE LANDSCAPE SUPPLY COM 82982L103 143,876 -31,094 -17.77 23,517 -19.69 3.2107
2023-07-27 2023-06-30 13F SITEONE LANDSCAPE SUPPLY COM 82982L103 174,970 -40,081 -18.64 29,283 -0.52 3.1556
2023-05-03 2023-03-31 13F SITEONE LANDSCAPE SUPPLY COM 82982L103 215,051 -12,627 -5.55 29,434 10.19 3.2187
2023-02-01 2022-12-31 13F SITEONE LANDSCAPE SUPPLY COM 82982L103 227,678 24,378 11.99 26,711 26.17 2.8569
2022-10-24 2022-09-30 13F SITEONE LANDSCAPE COM 82982L103 203,300 18,637 10.09 21,171 -3.55 2.3500
2022-07-26 2022-06-30 13F SITEONE LANDSCAPE COM 82982L103 184,663 12,847 7.48 21,950 -20.99 2.2694
2022-05-06 2022-03-31 13F SITEONE LANDSCAPE COM 82982L103 171,816 1,397 0.82 27,781 -32.72 2.3226
2022-02-09 2021-12-31 13F SITEONE LANDSCAPE COM 82982L103 170,419 -10,260 -5.68 41,289 14.56 3.0256
2021-11-08 2021-09-30 13F SITEONE LANDSCAPE COM 82982L103 180,679 4,544 2.58 36,040 20.89 2.7167
2021-08-11 2021-06-30 13F/A-1 SITEONE LANDSCAPE COM 82982L103 176,135 12,156 7.41 29,813 6.48 2.3375
2021-07-27 2021-06-30 13F SITEONE LANDSCAPE COM 82982L103 163,979 0 27,998 2.3296
2021-05-06 2021-03-31 13F SITEONE LANDSCAPE COM 82982L103 163,979 -55,027 -25.13 27,998 -19.41 2.3296
2021-02-05 2020-12-31 13F SITEONE LANDSCAPE COM 82982L103 219,006 -3,162 -1.42 34,741 28.23 2.9139
2020-11-04 2020-09-30 13F SITEONE LANDSCAPE COM 82982L103 222,168 578 0.26 27,093 7.28 2.9514
2020-08-03 2020-06-30 13F SITEONE LANDSCAPE COM 82982L103 221,590 -25,073 -10.16 25,255 39.08 2.9687
2020-04-28 2020-03-31 13F SITEONE LANDSCAPE COM 82982L103 246,663 -18,567 -7.00 18,159 -24.47 2.8829
2020-01-29 2019-12-31 13F SITEONE LANDSCAPE COM 82982L103 265,230 -35,787 -11.89 24,043 7.91 2.0452
2019-10-29 2019-09-30 13F SITEONE LANDSCAPE COM 82982L103 301,017 -59,833 -16.58 22,281 -10.90 2.4238
2019-07-24 2019-06-30 13F SITEONE LANDSCAPE COM 82982L103 360,850 185 0.05 25,007 21.32 2.6403
2019-04-12 2019-03-31 13F SITEONE LANDSCAPE COM 82982L103 360,665 166,265 85.53 20,612 91.85 2.2290
2019-01-25 2018-12-31 13F SITEONE LANDSCAPE COM 82982L103 194,400 19,420 11.10 10,744 -18.50 1.4649
2018-10-29 2018-09-30 13F SITEONE LANDSCAPE COM 82982L103 174,980 65,670 60.08 13,183 43.62 1.3547
2018-07-27 2018-06-30 13F SITEONE LANDSCAPE COM 82982L103 109,310 -18,640 -14.57 9,179 -6.88 0.9383
2018-04-23 2018-03-31 13F SITEONE LANDSCAPE COM 82982L103 127,950 -7,350 -5.43 9,857 -5.01 1.0445
2018-01-31 2017-12-31 13F SITEONE LANDSCAPE COM 82982L103 135,300 37,500 38.34 10,377 82.63 1.0658
2017-11-08 2017-09-30 13F SITEONE LANDSCAPE COM 82982L103 97,800 97,800 5,682 0.5551
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.