Ecolab Inc.
MX ˙ BMV ˙ US2788651006
SecurityMX:ECL / Ecolab Inc.
InstitutionBoston Private Wealth Llc
Latest Disclosed Ownership2,328 shares
Latest Disclosed Value $ 619,318
Boston Private Wealth Llc reports 10.25% decrease in ownership of ECL / Ecolab Inc.

On April 17, 2026 - Boston Private Wealth Llc filed a 13F-HR form disclosing ownership of 2,328 shares of Ecolab Inc. (MX:ECL) valued at $619,318 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 4, 2026 disclosing 2,594 shares of Ecolab Inc.. This represents a change in shares of -10.25% 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)
2026-04-17 2026-03-31 13F ECOLAB COM 278865100 2,328 -266 -10.25 619 -9.10 0.0408
2026-02-04 2025-12-31 13F ECOLAB COM 278865100 2,594 -80 -2.99 681 -6.97 0.0402
2025-11-06 2025-09-30 13F ECOLAB COM 278865100 2,674 -85 -3.08 732 -1.48 0.0394
2025-08-14 2025-06-30 13F ECOLAB COM 278865100 2,759 2,759 743 0.0398
2025-05-14 2025-03-31 13F ECOLAB COM 278865100 0 -14,687 -100.00 0 -100.00
2025-02-05 2024-12-31 13F ECOLAB COM 278865100 14,687 14,687 3,441 0.0643
2024-10-18 2024-09-30 13F ECOLAB COM 278865100 0 -14,399 -100.00 0 -100.00
2024-08-06 2024-06-30 13F ECOLAB COM 278865100 14,399 -692 -4.59 3,427 -1.66 0.0848
2024-05-15 2024-03-31 13F ECOLAB COM 278865100 15,091 -601 -3.83 3,485 11.95 0.0777
2024-01-30 2023-12-31 13F ECOLAB COM 278865100 15,692 -5,201 -24.89 3,113 -12.07 0.0757
2023-10-23 2023-09-30 13F ECOLAB COM 278865100 20,893 -2,548 -10.87 3,539 -19.13 0.0777
2023-07-24 2023-06-30 13F ECOLAB COM 278865100 23,441 -2,731 -10.43 4,376 1.02 0.0791
2023-05-12 2023-03-31 13F ECOLAB COM 278865100 26,172 -2,136 -7.55 4,332 5.15 0.0605
2023-02-10 2022-12-31 13F Ecolab COM 278865100 28,308 -418 -1.46 4,121 -0.70 0.0556
2022-11-09 2022-09-30 13F Ecolab COM 278865100 28,726 819 2.93 4,149 -3.31 0.0606
2022-08-16 2022-06-30 13F Ecolab COM 278865100 27,907 755 2.78 4,291 -10.49 0.0660
2022-05-13 2022-03-31 13F Ecolab COM 278865100 27,152 453 1.70 4,794 -23.47 0.0642
2022-02-15 2021-12-31 13F Ecolab COM 278865100 26,699 -959 -3.47 6,264 8.56 0.1027
2021-11-09 2021-09-30 13F Ecolab COM 278865100 27,658 -1,696 -5.78 5,770 -4.57 0.0741
2021-08-13 2021-06-30 13F Ecolab COM 278865100 29,354 1,780 6.46 6,046 2.42 0.0767
2021-05-11 2021-03-31 13F Ecolab COM 278865100 27,574 -666 -2.36 5,903 -3.39 0.0822
2021-02-10 2020-12-31 13F ECOLAB INC COM COM 278865100 28,240 -841 -2.89 6,110 5.13 0.0897
2020-11-10 2020-09-30 13F ECOLAB INC COM COM 278865100 29,081 175 0.61 5,812 1.06 0.0958
2020-08-05 2020-06-30 13F ECOLAB INC COM COM 278865100 28,906 -1,167 -3.88 5,751 22.73 0.1069
2020-05-11 2020-03-31 13F Ecolab COM 278865100 30,073 -3,068 -9.26 4,686 -26.74 0.1138
2020-02-13 2019-12-31 13F Ecolab COM 278865100 33,141 -553 -1.64 6,396 -4.15 0.1164
2019-11-01 2019-09-30 13F Ecolab COM 278865100 33,694 -1,690 -4.78 6,673 -4.48 0.1328
2019-07-10 2019-06-30 13F Ecolab COM 278865100 35,384 -2,036 -5.44 6,986 5.75 0.2346
2019-05-14 2019-03-31 13F Ecolab COM 278865100 37,420 -29,896 -44.41 6,606 -33.40 0.2609
2019-02-14 2018-12-31 13F Ecolab COM 278865100 67,316 -17,909 -21.01 9,919 -25.76 0.4232
2018-11-13 2018-09-30 13F Ecolab COM 278865100 85,225 -1,346 -1.55 13,361 9.99 0.4726
2018-08-14 2018-06-30 13F Ecolab COM 278865100 86,571 -7,883 -8.35 12,148 -6.17 0.4658
2018-05-11 2018-03-31 13F Ecolab COM 278865100 94,454 -4,383 -4.43 12,947 -2.38 0.4966
2018-02-13 2017-12-31 13F Ecolab COM 278865100 98,837 -4,714 -4.55 13,262 -0.42 0.4989
2017-11-13 2017-09-30 13F Ecolab COM 278865100 103,551 -4,523 -4.19 13,318 -7.17 0.5122
2017-08-04 2017-06-30 13F Ecolab COM 278865100 108,074 -3,611 -3.23 14,347 2.49 0.5629
2017-05-11 2017-03-31 13F Ecolab COM 278865100 111,685 -9,587 -7.91 13,999 -1.52 0.5576
2017-02-15 2016-12-31 13F Ecolab COM 278865100 121,272 -8,812 -6.77 14,215 -10.22 0.5882
2016-11-15 2016-09-30 13F/A-1 Ecolab COM 278865100 130,084 -5,033 -3.72 15,834 -1.19 0.6439
2016-11-14 2016-09-30 13F Ecolab COM 278865100 135,117 0 16,025 0.6538
2016-08-01 2016-06-30 13F Ecolab COM 278865100 135,117 -5,651 -4.01 16,025 2.08 0.6538
2016-05-13 2016-03-31 13F Ecolab COM 278865100 140,768 -15,598 -9.98 15,698 -12.23 0.6391
2016-02-12 2015-12-31 13F Ecolab COM 278865100 156,366 -15,465 -9.00 17,885 -5.13 0.7055
2015-11-12 2015-09-30 13F Ecolab COM 278865100 171,831 -3,076 -1.76 18,853 -4.67 0.7308
2015-08-13 2015-06-30 13F Ecolab COM 278865100 174,907 -2,839 -1.60 19,777 -2.72 0.6545
2015-05-12 2015-03-31 13F Ecolab COM 278865100 177,746 -1,788 -1.00 20,331 8.35 0.6564
2015-02-10 2014-12-31 13F Ecolab COM 278865100 179,534 179,534 18,765 0.6068
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.