Ecolab Inc.
MX ˙ BMV ˙ US2788651006
SecurityMX:ECL / Ecolab Inc.
InstitutionChevy Chase Trust Holdings, Inc.
Latest Disclosed Ownership425,337 shares
Latest Disclosed Value $ 113,148,231
Chevy Chase Trust Holdings, Inc. reports 5.81% increase in ownership of ECL / Ecolab Inc.

On May 15, 2026 - Chevy Chase Trust Holdings, Inc. filed a 13F-HR form disclosing ownership of 425,337 shares of Ecolab Inc. (MX:ECL) valued at $113,148,231 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 401,996 shares of Ecolab Inc.. This represents a change in shares of 5.81% 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)
2026-05-15 2026-03-31 13F ECOLAB COM 278865100 425,337 23,341 5.81 113,148 7.22 0.2365
2026-02-13 2025-12-31 13F ECOLAB COM 278865100 401,996 -23,258 -5.47 105,532 -9.38 0.2851
2025-11-14 2025-09-30 13F ECOLAB COM 278865100 425,254 43,551 11.41 116,460 13.24 0.3204
2025-07-29 2025-06-30 13F ECOLAB COM 278865100 381,703 1,434 0.38 102,846 6.68 0.2992
2025-04-23 2025-03-31 13F ECOLAB COM 278865100 380,269 -1,177 -0.31 96,406 7.86 0.3083
2025-01-30 2024-12-31 13F ECOLAB COM 278865100 381,446 -4,591 -1.19 89,380 -9.32 0.2721
2024-11-14 2024-09-30 13F ECOLAB COM 278865100 386,037 49,288 14.64 98,567 22.98 0.3021
2024-07-22 2024-06-30 13F ECOLAB COM 278865100 336,749 -471 -0.14 80,146 2.93 0.2557
2024-05-03 2024-03-31 13F ECOLAB COM 278865100 337,220 1,349 0.40 77,864 16.88 0.2548
2024-01-24 2023-12-31 13F ECOLAB COM 278865100 335,871 86,672 34.78 66,620 57.81 0.2384
2023-10-23 2023-09-30 13F ECOLAB COM 278865100 249,199 23,700 10.51 42,214 0.28 0.1667
2023-07-25 2023-06-30 13F ECOLAB COM 278865100 225,499 17,908 8.63 42,098 22.51 0.1577
2023-05-17 2023-03-31 13F/A-1 ECOLAB COM 278865100 207,591 -20,138 -8.84 34,363 3.66 0.1360
2023-05-16 2023-03-31 13F ECOLAB COM 278865100 4,432 -223,297 734 0.1002
2023-02-09 2022-12-31 13F ECOLAB COM 278865100 227,729 -88,260 -27.93 33,148 -27.36 0.1409
2022-11-04 2022-09-30 13F ECOLAB COM 278865100 315,989 -24,448 -7.18 45,634 -12.82 0.1949
2022-08-10 2022-06-30 13F ECOLAB COM 278865100 340,437 -181,256 -34.74 52,345 -43.17 0.2165
2022-04-27 2022-03-31 13F ECOLAB COM 278865100 521,693 -30,014 -5.44 92,112 -28.83 0.3174
2022-01-31 2021-12-31 13F ECOLAB COM 278865100 551,707 -2,478 -0.45 129,425 11.95 0.4172
2021-10-20 2021-09-30 13F ECOLAB COM 278865100 554,185 1,810 0.33 115,613 1.62 0.4029
2021-07-20 2021-06-30 13F ECOLAB COM 278865100 552,375 -43,431 -7.29 113,771 -10.80 0.3870
2021-04-22 2021-03-31 13F ECOLAB COM 278865100 595,806 -3,291 -0.55 127,545 -1.60 0.4547
2021-02-12 2020-12-31 13F ECOLAB COM 278865100 599,097 -11,748 -1.92 129,620 6.19 0.4620
2020-11-06 2020-09-30 13F ECOLAB COM 278865100 610,845 15,421 2.59 122,065 3.04 0.4824
2020-08-14 2020-06-30 13F ECOLAB COM 278865100 595,424 -13,940 -2.29 118,460 24.75 0.4804
2020-05-13 2020-03-31 13F ECOLAB COM 278865100 609,364 -2,575 -0.42 94,957 -19.60 0.4419
2020-02-12 2019-12-31 13F Ecolab COM 278865100 611,939 21,334 3.61 118,100 0.97 0.4469
2019-11-20 2019-09-30 13F ECOLAB COM 278865100 590,605 9,162 1.58 116,964 1.88 0.4797
2019-08-14 2019-06-30 13F ECOLAB COM 278865100 581,443 -7,618 -1.29 114,801 5.92 0.4757
2019-05-13 2019-03-31 13F ECOLAB COM 278865100 589,061 -1,571 -0.27 108,384 24.54 0.4483
2019-02-14 2018-12-31 13F ECOLAB COM 278865100 590,632 12,565 2.17 87,029 -3.97 0.4245
2018-10-23 2018-09-30 13F ECOLAB COM 278865100 578,067 -4,881 -0.84 90,630 10.79 0.3757
2018-08-02 2018-06-30 13F ECOLAB COM 278865100 582,948 20,945 3.73 81,804 6.19 0.3545
2018-04-10 2018-03-31 13F ECOLAB COM 278865100 562,003 3,438 0.62 77,034 2.78 0.3423
2018-01-22 2017-12-31 13F ECOLAB COM 278865100 558,565 4,670 0.84 74,947 5.21 0.3228
2017-11-14 2017-09-30 13F ECOLAB COM 278865100 553,895 21,457 4.03 71,238 0.79 0.3227
2017-07-13 2017-06-30 13F ECOLAB COM 278865100 532,438 10,360 1.98 70,681 8.01 0.3383
2017-04-05 2017-03-31 13F ECOLAB COM 278865100 522,078 36,954 7.62 65,437 15.07 0.3212
2017-01-09 2016-12-31 13F ECOLAB COM 278865100 485,124 46,338 10.56 56,866 6.47 0.3014
2016-10-05 2016-09-30 13F ECOLAB COM 278865100 438,786 14,243 3.35 53,408 6.07 0.2923
2016-07-08 2016-06-30 13F ECOLAB COM 278865100 424,543 22,945 5.71 50,351 12.43 0.2806
2016-04-07 2016-03-31 13F ECOLAB COM 278865100 401,598 14,105 3.64 44,786 1.05 0.2561
2016-01-15 2015-12-31 13F ECOLAB COM 278865100 387,493 18,287 4.95 44,321 9.41 0.2599
2015-10-15 2015-09-30 13F ECOLAB COM 278865100 369,206 15,193 4.29 40,509 1.20 0.2529
2015-07-15 2015-06-30 13F ECOLAB COM 278865100 354,013 11,088 3.23 40,029 2.05 0.2397
2015-04-17 2015-03-31 13F/A-1 ECOLAB COM 278865100 342,925 21,338 6.64 39,224 16.69 0.2366
2015-04-15 2015-03-31 13F ECOLAB COM 278865100 342,875 39,218
2015-01-15 2014-12-31 13F ECOLAB COM 278865100 321,587 16,455 5.39 33,613 -4.07 0.2102
2014-10-17 2014-09-30 13F ECOLAB COM 278865100 305,132 22,722 8.05 35,038 11.43 0.2268
2014-07-16 2014-06-30 13F ECOLAB COM 278865100 282,410 736 0.26 31,444 3.37 0.2187
2014-04-15 2014-03-31 13F ECOLAB COM 278865100 281,674 60,702 27.47 30,418 32.02 0.2181
2014-01-23 2013-12-31 13F ECOLAB COM 278865100 220,972 25,230 12.89 23,041 19.19 0.1684
2013-10-15 2013-09-30 13F ECOLAB COM 278865100 195,742 8,017 4.27 19,331 20.88 0.1577
2013-07-18 2013-06-30 13F/A-2 ECOLAB COM 278865100 187,725 187,725 15,992 0.1400
2013-07-18 2013-06-30 13F/A-1 ECOLAB COM 278865100 4,954 -182,771 422 0.0912
2013-07-17 2013-06-30 13F ECOLAB COM 278865100 4,954 422
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.