Ecolab Inc.
MX ˙ BMV ˙ US2788651006
SecurityMX:ECL / Ecolab Inc.
InstitutionChicago Capital, LLC
Latest Disclosed Ownership16,309 shares
Latest Disclosed Value $ 4,338,529
Chicago Capital, LLC reports 16.00% decrease in ownership of ECL / Ecolab Inc.

On April 23, 2026 - Chicago Capital, LLC filed a 13F-HR form disclosing ownership of 16,309 shares of Ecolab Inc. (MX:ECL) valued at $4,338,529 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 26, 2026 disclosing 19,416 shares of Ecolab Inc.. This represents a change in shares of -16.00% 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 ECOLAB COM 278865100 16,309 -3,107 -16.00 4,339 -14.89 0.1170
2026-01-26 2025-12-31 13F ECOLAB COM 278865100 19,416 0 0.00 5,097 -4.14 0.1259
2025-10-22 2025-09-30 13F ECOLAB COM 278865100 19,416 379 1.99 5,317 3.67 0.1309
2025-07-17 2025-06-30 13F ECOLAB COM 278865100 19,037 2,011 11.81 5,129 18.84 0.1266
2025-04-17 2025-03-31 13F ECOLAB COM 278865100 17,026 5,367 46.03 4,316 58.04 0.1219
2025-01-24 2024-12-31 13F ECOLAB COM 278865100 11,659 2,456 26.69 2,732 16.26 0.0724
2024-10-18 2024-09-30 13F ECOLAB COM 278865100 9,203 290 3.25 2,350 10.75 0.0653
2024-08-06 2024-06-30 13F ECOLAB COM 278865100 8,913 0 0.00 2,121 3.06 0.0631
2024-04-15 2024-03-31 13F ECOLAB COM 278865100 8,913 0 0.00 2,058 16.47 0.0627
2024-01-22 2023-12-31 13F ECOLAB COM 278865100 8,913 -59 -0.66 1,768 16.33 0.0637
2023-10-25 2023-09-30 13F ECOLAB COM 278865100 8,972 0 0.00 1,520 -9.26 0.0711
2023-07-20 2023-06-30 13F ECOLAB COM 278865100 8,972 0 0.00 1,675 12.73 0.0755
2023-04-18 2023-03-31 13F ECOLAB COM 278865100 8,972 0 0.00 1,485 13.79 0.0739
2023-01-20 2022-12-31 13F ECOLAB COM 278865100 8,972 -18 -0.20 1,306 0.54 0.0722
2022-10-14 2022-09-30 13F ECOLAB COM 278865100 8,990 0 0.00 1,298 -6.08 0.0751
2022-07-21 2022-06-30 13F ECOLAB COM 278865100 8,990 0 0.00 1,382 -12.92 0.0763
2022-04-21 2022-03-31 13F ECOLAB COM 278865100 8,990 0 0.00 1,587 -24.75 0.0683
2022-01-20 2021-12-31 13F ECOLAB COM 278865100 8,990 59 0.66 2,109 13.20 0.0785
2021-10-28 2021-09-30 13F ECOLAB COM 278865100 8,931 156 1.78 1,863 3.10 0.0707
2021-07-22 2021-06-30 13F ECOLAB COM 278865100 8,775 -220 -2.45 1,807 -6.18 0.0706
2021-04-13 2021-03-31 13F ECOLAB COM 278865100 8,995 0 0.00 1,926 -1.03 0.0813
2021-01-25 2020-12-31 13F ECOLAB COM 278865100 8,995 -3,162 -26.01 1,946 -19.88 0.0869
2020-10-13 2020-09-30 13F ECOLAB COM 278865100 12,157 0 0.00 2,429 0.41 0.1249
2020-07-29 2020-06-30 13F ECOLAB COM 278865100 12,157 0 0.00 2,419 27.72 0.1402
2020-04-21 2020-03-31 13F ECOLAB COM 278865100 12,157 -120 -0.98 1,894 -20.05 0.1527
2020-01-14 2019-12-31 13F ECOLAB COM 278865100 12,277 0 0.00 2,369 -2.55 0.1445
2019-10-28 2019-09-30 13F ECOLAB COMMON 278865100 12,277 -426 -3.35 2,431 -3.07 0.1628
2019-07-11 2019-06-30 13F ECOLAB COMMON 278865100 12,703 -173 -1.34 2,508 10.34 0.1604
2019-04-23 2019-03-31 13F ECOLAB COMMON 278865100 12,876 70 0.55 2,273 20.46 0.1545
2019-02-11 2018-12-31 13F ECOLAB COM 278865100 12,806 115 0.91 1,887 -5.18 0.1539
2018-11-02 2018-09-30 13F ECOLAB COM 278865100 12,691 545 4.49 1,990 16.78 0.1377
2018-07-19 2018-06-30 13F ECOLAB COM 278865100 12,146 4,371 56.22 1,704 59.85 0.1374
2018-05-09 2018-03-31 13F Ecolab COM 278865100 7,775 7,775 1,066 0.1422
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.