SiteOne Landscape Supply, Inc.
MX ˙ BMV ˙ US82982L1035
SecurityMX:SITE / SiteOne Landscape Supply, Inc.
InstitutionAmi Asset Management Corp
Latest Disclosed Ownership3,659 shares
Latest Disclosed Value $ 487,049
Ami Asset Management Corp reports 2.50% decrease in ownership of SITE / SiteOne Landscape Supply, Inc.

On April 23, 2026 - Ami Asset Management Corp filed a 13F-HR form disclosing ownership of 3,659 shares of SiteOne Landscape Supply, Inc. (MX:SITE) valued at $487,049 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 23, 2026 disclosing 3,753 shares of SiteOne Landscape Supply, Inc.. This represents a change in shares of -2.50% 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)
2026-04-23 2026-03-31 13F SITEONE LANDSCAPE SUPPLY COM 82982L103 3,659 -94 -2.50 487 4.28 0.0311
2026-01-23 2025-12-31 13F SITEONE LANDSCAPE SUPPLY COM 82982L103 3,753 1,568 71.76 467 66.19 0.0265
2025-10-16 2025-09-30 13F SITEONE LANDSCAPE SUPPLY COM 82982L103 2,185 -10 -0.46 281 6.04 0.0157
2025-07-18 2025-06-30 13F SITEONE LANDSCAPE SUPPLY COM 82982L103 2,195 -1,609 -42.30 265 -42.52 0.0152
2025-04-23 2025-03-31 13F SITEONE LANDSCAPE SUPPLY COM 82982L103 3,804 -409 -9.71 462 -16.94 0.0270
2025-01-17 2024-12-31 13F SITEONE LANDSCAPE SUPPLY COM 82982L103 4,213 -163 -3.72 555 -15.91 0.0296
2024-10-25 2024-09-30 13F SITEONE LANDSCAPE SUPPLY COM 82982L103 4,376 -3,905 -47.16 660 -34.33 0.0358
2024-07-25 2024-06-30 13F SITEONE LANDSCAPE SUPPLY COM 82982L103 8,281 -12,011 -59.19 1,005 -71.62 0.0542
2024-04-19 2024-03-31 13F SITEONE LANDSCAPE SUPPLY COM 82982L103 20,292 -6,951 -25.51 3,542 -20.00 0.1810
2024-01-19 2023-12-31 13F SITEONE LANDSCAPE SUPPLY COM 82982L103 27,243 -762 -2.72 4,427 -3.30 0.2420
2023-10-20 2023-09-30 13F SITEONE LANDSCAPE SUPPLY COM 82982L103 28,005 -612 -2.14 4,577 -4.43 0.2836
2023-07-25 2023-06-30 13F SITEONE LANDSCAPE SUPPLY COM 82982L103 28,617 1,278 4.67 4,789 28.01 0.2851
2023-04-21 2023-03-31 13F/A-1 SITEONE LANDSCAPE SUPPLY COM 82982L103 27,339 423 1.57 3,742 124,600.00 0.2388
2023-04-21 2023-03-31 13F SITEONE LANDSCAPE SUPPLY COM 82982L103 27,339 423 4 0.2388
2023-01-17 2022-12-31 13F SITEONE LANDSCAPE SUPPLY COM 82982L103 26,916 -934 -3.35 3 -99.90 0.2210
2022-10-24 2022-09-30 13F SITEONE LANDSCAPE SUPPLY COM 82982L103 27,850 -1,260 -4.33 2,900 -16.18 0.2121
2022-07-21 2022-06-30 13F SITEONE LANDSCAPE SUPPLY COM 82982L103 29,110 29,110 3,460 0.2195
2021-07-20 2021-06-30 13F SITEONE LANDSCAPE SUPPLY COM 82982L103 0 -14,980 -100.00 0 -100.00
2021-04-16 2021-03-31 13F SITEONE LANDSCAPE SUPPLY COM 82982L103 14,980 -147 -0.97 2,558 6.58 0.1337
2021-01-20 2020-12-31 13F SITEONE LANDSCAPE SUPPLY COM 82982L103 15,127 -10,740 -41.52 2,400 -23.91 0.1190
2020-10-23 2020-09-30 13F SITEONE LANDSCAPE SUPPLY COM 82982L103 25,867 -15,301 -37.17 3,154 -32.78 0.1603
2020-07-15 2020-06-30 13F SITEONE LANDSCAPE SUPPLY COM 82982L103 41,168 -39,190 -48.77 4,692 -20.69 0.2502
2020-04-27 2020-03-31 13F SITEONE LANDSCAPE SUPPLY COM 82982L103 80,358 9,296 13.08 5,916 -8.17 0.3736
2020-01-23 2019-12-31 13F SITEONE LANDSCAPE SUPPLY COM 82982L103 71,062 -40,760 -36.45 6,442 -22.17 0.3181
2019-10-23 2019-09-30 13F SITEONE LANDSCAPE SUPP COM COM 82982L103 111,822 -69,159 -38.21 8,277 -34.01 0.4302
2019-08-05 2019-06-30 13F SITEONE LANDSCAPE SUPP COM COM 82982L103 180,981 -10,648 -5.56 12,542 14.52 0.6219
2019-04-25 2019-03-31 13F SITEONE LANDSCAPE SUPP COM COM 82982L103 191,629 50,337 35.63 10,952 40.25 0.8074
2019-01-25 2018-12-31 13F SITEONE LANDSCAPE SUPP COM COM 82982L103 141,292 2,693 1.94 7,809 -25.22 0.6451
2018-10-22 2018-09-30 13F SITEONE LANDSCAPE SUPP COM COM 82982L103 138,599 -12,288 -8.14 10,442 -17.58 0.7106
2018-07-23 2018-06-30 13F SITEONE LANDSCAPE SUPP COM COM 82982L103 150,887 -4,844 -3.11 12,670 5.60 0.9067
2018-04-20 2018-03-31 13F SITEONE LANDSCAPE SUPP COM COM 82982L103 155,731 19 0.01 11,998 0.46 0.8567
2018-01-16 2017-12-31 13F SITEONE LANDSCAPE SUPP COM COM 82982L103 155,712 -88,050 -36.12 11,943 -15.67 0.8242
2017-10-10 2017-09-30 13F SITEONE LANDSCAPE SUPP COM COM 82982L103 243,762 7,121 3.01 14,163 14.96 1.0025
2017-07-14 2017-06-30 13F SITEONE LANDSCAPE SUPP COM COM 82982L103 236,641 236,641 12,320 0.8786
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.