Ecolab Inc.
MX ˙ BMV ˙ US2788651006
SecurityMX:ECL / Ecolab Inc.
InstitutionRathbone Brothers plc
Latest Disclosed Ownership309,102 shares
Latest Disclosed Value $ 82,227,314
Rathbone Brothers plc reports 1.36% increase in ownership of ECL / Ecolab Inc.

On May 12, 2026 - Rathbone Brothers plc filed a 13F-HR form disclosing ownership of 309,102 shares of Ecolab Inc. (MX:ECL) valued at $82,227,314 USD as of March 31, 2026. The entity filed a previous 13F-HR/A on February 6, 2026 disclosing 304,964 shares of Ecolab Inc.. This represents a change in shares of 1.36% 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)
2026-05-12 2026-03-31 13F ECOLAB INC USD1 COM 278865100 309,102 4,138 1.36 82,227 2.71 0.3513
2026-02-06 2025-12-31 13F/A-1 ECOLAB INC USD1 COM 278865100 304,964 15,392 5.32 80,059 0.95 0.3169
2026-01-21 2025-12-31 13F ECOLAB INC USD1 COM 278865100 304,964 15,392 80,059 0.3169
2025-11-13 2025-09-30 13F ECOLAB INC USD1 COM 278865100 289,572 10,792 3.87 79,302 5.58 0.3220
2025-08-07 2025-06-30 13F ECOLAB INC USD1 COM 278865100 278,780 3,875 1.41 75,114 7.78 0.3240
2025-05-13 2025-03-31 13F ECOLAB INC USD1 COM 278865100 274,905 -10,998 -3.85 69,694 4.03 0.3368
2025-02-13 2024-12-31 13F ECOLAB INC USD1 COM 278865100 285,903 -21,882 -7.11 66,993 -14.75 0.3243
2024-11-13 2024-09-30 13F ECOLAB INC USD1 COM 278865100 307,785 -862 -0.28 78,587 6.98 0.3966
2024-08-09 2024-06-30 13F ECOLAB INC USD1 COM 278865100 308,647 3,906 1.28 73,458 4.40 0.4001
2024-05-14 2024-03-31 13F ECOLAB INC USD1 COM 278865100 304,741 -1,659 -0.54 70,365 15.78 0.4061
2024-02-13 2023-12-31 13F ECOLAB INC USD1 COM 278865100 306,400 7,077 2.36 60,774 19.86 0.3917
2023-11-13 2023-09-30 13F ECOLAB INC USD1 COM 278865100 299,323 81,050 37.13 50,705 24.43 0.3677
2023-08-04 2023-06-30 13F ECOLAB INC USD1 COM 278865100 218,273 18,128 9.06 40,749 23.00 0.3803
2023-05-12 2023-03-31 13F ECOLAB INC USD1 COM 278865100 200,145 3,042 1.54 33,130 15.48 0.3387
2023-02-14 2022-12-31 13F ECOLAB INC USD1 COM 278865100 197,103 17,290 9.62 28,690 10.48 0.3230
2022-11-14 2022-09-30 13F/A-1 ECOLAB INC USD1 COM 278865100 179,813 -726 -0.40 25,969 -6.45 0.3204
2022-11-03 2022-09-30 13F ECOLAB INC USD1 COM 278865100 179,813 -726 25,969 0.3204
2022-08-12 2022-06-30 13F ECOLAB INC USD1 COM 278865100 180,539 1,214 0.68 27,760 -12.32 0.3182
2022-05-11 2022-03-31 13F ECOLAB INC USD1 COM 278865100 179,325 28,921 19.23 31,662 -10.26 0.3230
2022-02-10 2021-12-31 13F ECOLAB INC USD1 COM 278865100 150,404 8,898 6.29 35,283 19.52 0.3429
2021-11-04 2021-09-30 13F ECOLAB INC USD1 COM 278865100 141,506 9,595 7.27 29,521 8.65 0.3176
2021-07-30 2021-06-30 13F ECOLAB INC USD1 COM 278865100 131,911 13,020 10.95 27,170 6.75 0.3018
2021-05-14 2021-03-31 13F ECOLAB INC USD1 COM 278865100 118,891 22,337 23.13 25,451 21.83 0.3259
2021-02-11 2020-12-31 13F ECOLAB INC USD1 COM 278865100 96,554 14,680 17.93 20,890 27.67 0.2966
2020-11-13 2020-09-30 13F ECOLAB INC USD1 COM 278865100 81,874 10,617 14.90 16,362 15.41 0.2800
2020-08-07 2020-06-30 13F ECOLAB INC USD1 COM 278865100 71,257 7,761 12.22 14,177 43.27 0.2878
2020-05-04 2020-03-31 13F ECOLAB INC USD1 COM 278865100 63,496 11,429 21.95 9,895 -1.52 0.2882
2020-02-11 2019-12-31 13F ECOLAB INC USD1 COM 278865100 52,067 12,600 31.93 10,048 28.56 0.2645
2019-11-13 2019-09-30 13F ECOLAB INC USD1 COM 278865100 39,467 27,725 236.12 7,816 237.19 0.2220
2019-08-12 2019-06-30 13F ECOLAB INC USD1 COM 278865100 11,742 559 5.00 2,318 17.43 0.0726
2019-05-09 2019-03-31 13F ECOLAB INC USD1 COM 278865100 11,183 -5,631 -33.49 1,974 -20.34 0.0649
2019-02-12 2018-12-31 13F ECOLAB INC USD1 COM 278865100 16,814 9,500 129.89 2,478 116.04 0.0950
2018-10-12 2018-09-30 13F ECOLAB INC USD1 COM 278865100 7,314 2,223 43.67 1,147 60.64 0.0390
2018-07-16 2018-06-30 13F ECOLAB INC USD1 COM 278865100 5,091 5,091 714 0.0271
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.