Ecolab Inc.
MX ˙ BMV ˙ US2788651006
SecurityMX:ECL / Ecolab Inc.
InstitutionCongress Asset Management Co /ma
Latest Disclosed Ownership474,438 shares
Latest Disclosed Value $ 126,209,878
Congress Asset Management Co /ma reports 1.62% decrease in ownership of ECL / Ecolab Inc.

On April 14, 2026 - Congress Asset Management Co /ma filed a 13F-HR form disclosing ownership of 474,438 shares of Ecolab Inc. (MX:ECL) valued at $126,209,878 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 9, 2026 disclosing 482,232 shares of Ecolab Inc.. This represents a change in shares of -1.62% 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)
2026-04-14 2026-03-31 13F Ecolab COM 278865100 474,438 -7,794 -1.62 126,210 -0.30 0.9045
2026-01-09 2025-12-31 13F Ecolab COM 278865100 482,232 -8,478 -1.73 126,595 -5.80 0.8910
2025-10-10 2025-09-30 13F Ecolab COM 278865100 490,710 -6,338 -1.28 134,386 0.34 0.8943
2025-07-16 2025-06-30 13F Ecolab COM 278865100 497,048 -1,835 -0.37 133,925 5.89 0.9186
2025-04-11 2025-03-31 13F Ecolab Inc Com COM 278865100 498,883 1,245 0.25 126,477 8.46 0.9461
2025-01-30 2024-12-31 13F Ecolab Inc Com COM 278865100 497,638 9,763 2.00 116,606 -6.39 0.7881
2024-10-28 2024-09-30 13F Ecolab Inc Com COM 278865100 487,875 6,324 1.31 124,569 8.69 0.8493
2024-08-02 2024-06-30 13F Ecolab Inc Com COM 278865100 481,551 481,551 114,609 0.8213
2022-04-20 2022-03-31 13F Ecolab COM 278865100 0 -883 -100.00 0 -100.00
2022-01-28 2021-12-31 13F Ecolab COM 278865100 883 883 207 0.0016
2021-08-05 2021-06-30 13F Ecolab COM 278865100 0 -1,717 -100.00 0 -100.00
2021-05-05 2021-03-31 13F Ecolab COM 278865100 1,717 -572 -24.99 368 -25.66 0.0033
2021-01-26 2020-12-31 13F Ecolab COM 278865100 2,289 -496 -17.81 495 -11.13 0.0047
2020-11-03 2020-09-30 13F Ecolab COM 278865100 2,785 -488 -14.91 557 -14.44 0.0060
2020-07-23 2020-06-30 13F Ecolab COM 278865100 3,273 -915 -21.85 651 -0.31 0.0077
2020-04-21 2020-03-31 13F Ecolab COM 278865100 4,188 -315 -7.00 653 -24.86 0.0099
2020-02-10 2019-12-31 13F Ecolab COM 278865100 4,503 -255 -5.36 869 -7.75 0.0106
2019-11-01 2019-09-30 13F Ecolab COM 278865100 4,758 -1,035 -17.87 942 -17.66 0.0121
2019-08-07 2019-06-30 13F Ecolab COM 278865100 5,793 -328,688 -98.27 1,144 -98.06 0.0145
2019-05-08 2019-03-31 13F Ecolab COM 278865100 334,481 -7,075 -2.07 59,049 17.33 0.7723
2019-01-25 2018-12-31 13F Ecolab COM 278865100 341,556 367 0.11 50,328 -5.91 0.7568
2018-10-26 2018-09-30 13F Ecolab COM 278865100 341,189 -6,160 -1.77 53,492 9.74 0.6919
2018-07-25 2018-06-30 13F Ecolab COM 278865100 347,349 1,400 0.40 48,744 2.79 0.6709
2018-05-11 2018-03-31 13F Ecolab COM 278865100 345,949 -5,180 -1.48 47,419 0.65 0.6670
2018-01-30 2017-12-31 13F Ecolab COM 278865100 351,129 -1,981 -0.56 47,114 3.74 0.6861
2017-10-17 2017-09-30 13F Ecolab COM 278865100 353,110 -6,211 -1.73 45,414 -4.79 0.7020
2017-07-26 2017-06-30 13F Ecolab COM 278865100 359,321 -13,241 -3.55 47,700 2.15 0.8535
2017-05-09 2017-03-31 13F Ecolab COM 278865100 372,562 -16,863 -4.33 46,697 2.30 0.8926
2017-02-14 2016-12-31 13F Ecolab COM 278865100 389,425 -29,318 -7.00 45,648 -10.44 0.9567
2016-11-14 2016-09-30 13F Ecolab COM 278865100 418,743 -12,936 -3.00 50,969 -0.45 1.1242
2016-08-04 2016-06-30 13F Ecolab COM 278865100 431,679 -2,672 -0.62 51,197 5.69 1.1822
2016-05-09 2016-03-31 13F Ecolab COM 278865100 434,351 -16,511 -3.66 48,439 -6.07 1.1729
2016-01-26 2015-12-31 13F Ecolab COM 278865100 450,862 -6,752 -1.48 51,570 2.71 1.2807
2015-11-16 2015-09-30 13F Ecolab COM 278865100 457,614 84,504 22.65 50,209 19.01 1.2924
2015-08-14 2015-06-30 13F Ecolab COM 278865100 373,110 -88,119 -19.11 42,188 -20.03 1.2142
2015-05-12 2015-03-31 13F Ecolab COM 278865100 461,229 461,229 0.00 52,755 1.2658
2015-02-05 2014-12-31 13F Ecolab COM 278865100 0 -503,966 -100.00 0 -100.00
2014-11-12 2014-09-30 13F Ecolab COM 278865100 503,966 -8,289 -1.62 57,870 1.47 1.4834
2014-08-12 2014-06-30 13F Ecolab COM 278865100 512,255 415,818 431.18 57,034 447.67 1.4492
2014-05-14 2014-03-31 13F Ecolab COM 278865100 96,437 96,437 10,414 0.2607
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.