Ecolab Inc.
US ˙ NYSE ˙ US2788651006

SecurityECL / Ecolab Inc.
InstitutionMirova US LLC
Latest Disclosed Ownership1,169,995 shares
Latest Disclosed Value $ 311,242,070
Mirova US LLC reports 18.62% decrease in ownership of ECL / Ecolab Inc.

On May 11, 2026 - Mirova US LLC filed a 13F-HR form disclosing ownership of 1,169,995 shares of Ecolab Inc. (US:ECL) valued at $311,242,070 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 11, 2026 disclosing 1,437,641 shares of Ecolab Inc.. This represents a change in shares of -18.62% during the quarter. The current value of the position is $299,132,622 USD.

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)
2026-05-11 2026-03-31 13F ECOLAB COM 278865100 1,169,995 -267,646 -18.62 311,242 -17.53 3.5319
2026-02-11 2025-12-31 13F ECOLAB COM 278865100 1,437,641 -387,231 -21.22 377,410 -24.48 3.7891
2025-10-20 2025-09-30 13F ECOLAB COM 278865100 1,824,872 -227,931 -11.10 499,759 -9.65 5.0468
2025-07-23 2025-06-30 13F ECOLAB COM 278865100 2,052,803 73,628 3.72 553,107 10.23 5.7252
2025-05-15 2025-03-31 13F ECOLAB COM 278865100 1,979,175 62,784 3.28 501,760 11.74 5.9593
2025-02-10 2024-12-31 13F ECOLAB COM 278865100 1,916,391 -71,305 -3.59 449,049 -11.52 5.3859
2024-11-14 2024-09-30 13F ECOLAB COM 278865100 1,987,696 12,281 0.62 507,518 7.95 5.8223
2024-07-31 2024-06-30 13F ECOLAB COM 278865100 1,975,415 43,553 2.25 470,149 5.40 5.8525
2024-05-09 2024-03-31 13F ECOLAB COM 278865100 1,931,862 -34,646 -1.76 446,067 14.36 5.9967
2024-01-30 2023-12-31 13F ECOLAB COM 278865100 1,966,508 -11,422 -0.58 390,057 16.41 5.8772
2023-11-13 2023-09-30 13F ECOLAB COM 278865100 1,977,930 75,788 3.98 335,061 -5.65 5.6805
2023-07-24 2023-06-30 13F ECOLAB COM 278865100 1,902,142 47,432 2.56 355,111 15.67 5.9112
2023-05-02 2023-03-31 13F ECOLAB COM 278865100 1,854,710 21,578 1.18 307,010 15.06 5.5702
2023-02-09 2022-12-31 13F ECOLAB COM 278865100 1,833,132 44,629 2.50 266,831 3.30 5.3604
2022-11-03 2022-09-30 13F ECOLAB COM 278865100 1,788,503 -6,115 -0.34 258,295 -6.39 6.0332
2022-07-28 2022-06-30 13F ECOLAB COM 278865100 1,794,618 103,590 6.13 275,940 -7.58 5.9420
2022-05-06 2022-03-31 13F ECOLAB COM 278865100 1,691,028 129,186 8.27 298,567 -18.51 5.7339
2022-02-14 2021-12-31 13F ECOLAB COM 278865100 1,561,842 252,817 19.31 366,392 34.17 6.8832
2021-11-15 2021-09-30 13F ECOLAB COM 278865100 1,309,025 138,917 11.87 273,088 13.31 6.3744
2021-08-16 2021-06-30 13F ECOLAB COM 278865100 1,170,108 132,979 12.82 241,007 8.55 6.4645
2021-05-17 2021-03-31 13F ECOLAB COM 278865100 1,037,129 156,902 17.83 222,018 16.58 7.7277
2021-02-16 2020-12-31 13F ECOLAB COM 278865100 880,227 340,782 63.17 190,445 76.66 8.3008
2020-11-16 2020-09-30 13F ECOLAB COM 278865100 539,445 142,953 36.05 107,803 36.66 6.1647
2020-08-14 2020-06-30 13F ECOLAB COM 278865100 396,492 70,308 21.55 78,882 55.19 6.8761
2020-05-13 2020-03-31 13F ECOLAB COM 278865100 326,184 59,229 22.19 50,830 -1.34 6.7338
2020-02-14 2019-12-31 13F ECOLAB Common Stock 278865100 266,955 266,955 51,518 6.9774
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.