SiteOne Landscape Supply, Inc.
MX ˙ BMV ˙ US82982L1035
SecurityMX:SITE / SiteOne Landscape Supply, Inc.
InstitutionRockefeller Capital Management L.P.
Latest Disclosed Ownership99,328 shares
Latest Disclosed Value $ 13,221,550
Rockefeller Capital Management L.P. reports 22.62% increase in ownership of SITE / SiteOne Landscape Supply, Inc.

On May 14, 2026 - Rockefeller Capital Management L.P. filed a 13F-HR form disclosing ownership of 99,328 shares of SiteOne Landscape Supply, Inc. (MX:SITE) valued at $13,221,550 USD as of March 31, 2026. The entity filed a previous 13F-HR/A on March 16, 2026 disclosing 81,007 shares of SiteOne Landscape Supply, Inc.. This represents a change in shares of 22.62% 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 99,328 18,321 22.62 13,222 31.03 0.0234
2026-03-16 2025-12-31 13F/A-1 SITEONE LANDSCAPE SUPPLY COM 82982L103 81,007 -2,033 -2.45 10,090 -5.66 0.0182
2026-02-14 2025-12-31 13F SITEONE LANDSCAPE SUPPLY COM 82982L103 81,007 -2,033 10,090 0.0092
2025-11-14 2025-09-30 13F SITEONE LANDSCAPE SUPPLY COM 82982L103 83,040 3,476 4.37 10,696 11.15 0.0209
2025-08-14 2025-06-30 13F/A-1 SITEONE LANDSCAPE SUPPLY COM 82982L103 79,564 21,810 37.76 9,622 37.20 0.0211
2025-08-08 2025-06-30 13F SITEONE LANDSCAPE SUPPLY COM 82982L103 79,564 21,810 9,622 0.0121
2025-05-14 2025-03-31 13F SITEONE LANDSCAPE SUPPLY COM 82982L103 57,754 1,734 3.10 7,014 -4.99 0.0173
2025-02-13 2024-12-31 13F SITEONE LANDSCAPE SUPPLY COM 82982L103 56,020 24,407 77.21 7,382 54.74 0.0191
2024-11-14 2024-09-30 13F SITEONE LANDSCAPE SUPPLY COM 82982L103 31,613 31,613 4,771 0.0128
2024-08-12 2024-06-30 13F SITEONE LANDSCAPE SUPPLY COM 82982L103 0 -13,260 -100.00 0 -100.00
2024-05-14 2024-03-31 13F SITEONE LANDSCAPE SUPPLY COM 82982L103 13,260 13,260 2,315 0.0068
2023-05-17 2023-03-31 13F SITEONE LANDSCAPE SUPPLY COM 82982L103 0 -171 -100.00 0 -100.00
2023-03-06 2022-12-31 13F SITEONE LANDSCAPE SUPPLY COM 82982L103 171 -348 -67.05 19 -64.15 0.0001
2022-11-02 2022-09-30 13F SITEONE LANDSCAPE SUPPLY COM 82982L103 519 -361 -41.02 53 -48.54 0.0003
2022-08-12 2022-06-30 13F SITEONE LANDSCAPE SUPPLY COM 82982L103 880 537 156.56 103 90.74 0.0005
2022-05-13 2022-03-31 13F SITEONE LANDSCAPE SUPPLY COM 82982L103 343 -19 -5.25 54 -37.93 0.0003
2022-02-14 2021-12-31 13F SITEONE LANDSCAPE SUPPLY COM 82982L103 362 -113 -23.79 87 -6.45 0.0004
2021-11-12 2021-09-30 13F SITEONE LANDSCAPE SUPPLY COM 82982L103 475 377 384.69 93 481.25 0.0005
2021-08-10 2021-06-30 13F SITEONE LANDSCAPE SUPPLY COM 82982L103 98 50 104.17 16 100.00 0.0001
2021-05-11 2021-03-31 13F SITEONE LANDSCAPE SUPPLY COM 82982L103 48 7 17.07 8 60.00 0.0001
2021-02-12 2020-12-31 13F SITEONE LANDSCAPE SUPPLY COM 82982L103 41 26 173.33 5 400.00 0.0000
2020-11-13 2020-09-30 13F SITEONE LANDSCAPE SUPPLY COM 82982L103 15 0 0.00 1 -50.00 0.0000
2020-08-12 2020-06-30 13F SITEONE LANDSCAPE SUPPLY COM 82982L103 15 15 2 0.0000
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.