Ecolab Inc.
MX ˙ BMV ˙ US2788651006
SecurityMX:ECL / Ecolab Inc.
InstitutionWellington Management Group Llp
Latest Disclosed Ownership126,080 shares
Latest Disclosed Value $ 33,539,802
Wellington Management Group Llp reports 0.18% increase in ownership of ECL / Ecolab Inc.

On May 15, 2026 - Wellington Management Group Llp filed a 13F-HR form disclosing ownership of 126,080 shares of Ecolab Inc. (MX:ECL) valued at $33,539,802 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 125,858 shares of Ecolab Inc.. This represents a change in shares of 0.18% 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 126,080 222 0.18 33,540 1.51 0.0009
2026-02-17 2025-12-31 13F ECOLAB COM 278865100 125,858 -1,541,913 -92.45 33,040 -92.77 0.0058
2025-11-14 2025-09-30 13F ECOLAB COM 278865100 1,667,771 -3,043,674 -64.60 456,736 -64.02 0.0799
2025-08-14 2025-06-30 13F ECOLAB COM 278865100 4,711,445 -50,988 -1.07 1,269,452 5.14 0.2304
2025-05-13 2025-03-31 13F ECOLAB COM 278865100 4,762,433 -206,270 -4.15 1,207,372 3.70 0.2322
2025-02-12 2024-12-31 13F ECOLAB COM 278865100 4,968,703 -181,760 -3.53 1,164,266 -11.47 0.2132
2024-11-14 2024-09-30 13F ECOLAB COM 278865100 5,150,463 -304,741 -5.59 1,315,068 1.29 0.2303
2024-08-14 2024-06-30 13F ECOLAB COM 278865100 5,455,204 -1,219,376 -18.27 1,298,339 -15.76 0.2318
2024-05-15 2024-03-31 13F ECOLAB COM 278865100 6,674,580 -282,231 -4.06 1,541,161 11.69 0.2730
2024-02-12 2023-12-31 13F ECOLAB COM 278865100 6,956,811 -1,718,013 -19.80 1,379,883 -6.10 0.2576
2023-11-14 2023-09-30 13F ECOLAB COM 278865100 8,674,824 -2,271,138 -20.75 1,469,515 -28.09 0.2947
2023-08-14 2023-06-30 13F ECOLAB COM 278865100 10,945,962 -381,411 -3.37 2,043,502 8.99 0.3874
2023-05-12 2023-03-31 13F ECOLAB COM 278865100 11,327,373 96,475 0.86 1,875,020 14.70 0.3716
2023-02-13 2022-12-31 13F ECOLAB COM 278865100 11,230,898 -220,176 -1.92 1,634,770 -1.15 0.3278
2022-11-14 2022-09-30 13F ECOLAB COM 278865100 11,451,074 92,061 0.81 1,653,765 -5.31 0.3522
2022-08-15 2022-06-30 13F ECOLAB COM 278865100 11,359,013 2,102,894 22.72 1,746,561 6.87 0.3517
2022-05-16 2022-03-31 13F ECOLAB COM 278865100 9,256,119 532,170 6.10 1,634,261 -20.15 0.2798
2022-02-11 2021-12-31 13F ECOLAB COM 278865100 8,723,949 1,371,235 18.65 2,046,551 33.42 0.3273
2021-11-15 2021-09-30 13F ECOLAB COM 278865100 7,352,714 -16,869 -0.23 1,533,923 1.05 0.2609
2021-08-16 2021-06-30 13F ECOLAB COM 278865100 7,369,583 39,675 0.54 1,517,913 -3.26 0.2527
2021-05-17 2021-03-31 13F ECOLAB COM 278865100 7,329,908 -216,329 -2.87 1,569,114 -3.89 0.2763
2021-02-12 2020-12-31 13F ECOLAB COM 278865100 7,546,237 43,876 0.58 1,632,705 8.90 0.3006
2020-11-16 2020-09-30 13F ECOLAB COM 278865100 7,502,361 -168,973 -2.20 1,499,273 -1.77 0.3103
2020-08-14 2020-06-30 13F ECOLAB COM 278865100 7,671,334 1,378,930 21.91 1,526,213 55.65 0.3398
2020-05-14 2020-03-31 13F ECOLAB COM 278865100 6,292,404 803,856 14.65 980,545 -7.43 0.2595
2020-02-11 2019-12-31 13F ECOLAB COM 278865100 5,488,548 94,539 1.75 1,059,236 -0.84 0.2220
2019-11-13 2019-09-30 13F ECOLAB COM 278865100 5,394,009 -1,082,175 -16.71 1,068,230 -16.46 0.2409
2019-08-14 2019-06-30 13F ECOLAB COM 278865100 6,476,184 -1,563,799 -19.45 1,278,658 -9.91 0.2831
2019-05-15 2019-03-31 13F ECOLAB COM 278865100 8,039,983 288,393 3.72 1,419,379 24.27 0.3215
2019-02-14 2018-12-31 13F ECOLAB COM 278865100 7,751,590 778,290 11.16 1,142,197 4.48 0.2859
2018-11-14 2018-09-30 13F ECOLAB COM 278865100 6,973,300 733,296 11.75 1,093,273 24.85 0.2302
2018-08-14 2018-06-30 13F ECOLAB COM 278865100 6,240,004 -639,158 -9.29 875,659 -7.13 0.1949
2018-05-15 2018-03-31 13F ECOLAB COM 278865100 6,879,162 880,572 14.68 942,926 17.15 0.2134
2018-02-13 2017-12-31 13F ECOLAB COM 278865100 5,998,590 845,480 16.41 804,891 21.45 0.1778
2017-11-13 2017-09-30 13F ECOLAB COM 278865100 5,153,110 -153,026 -2.88 662,741 -5.91 0.1521
2017-08-14 2017-06-30 13F ECOLAB COM 278865100 5,306,136 -73,747 -1.37 704,389 4.46 0.1659
2017-05-11 2017-03-31 13F ECOLAB COM 278865100 5,379,883 -151,393 -2.74 674,315 4.00 0.1624
2017-02-14 2016-12-31 13F ECOLAB COM 278865100 5,531,276 1,010,574 22.35 648,376 17.83 0.1626
2016-11-14 2016-09-30 13F ECOLAB COM 278865100 4,520,702 95,823 2.17 550,260 4.85 0.1378
2016-08-15 2016-06-30 13F ECOLAB COM 278865100 4,424,879 90,854 2.10 524,790 8.58 0.1357
2016-05-13 2016-03-31 13F ECOLAB COM 278865100 4,334,025 -855,890 -16.49 483,330 -18.58 0.1272
2016-02-12 2015-12-31 13F ECOLAB COM 278865100 5,189,915 39,406 0.77 593,623 5.04 0.1553
2015-11-16 2015-09-30 13F ECOLAB COM 278865100 5,150,509 -2,304 -0.04 565,114 -3.01 0.1576
2015-08-14 2015-06-30 13F ECOLAB COM 278865100 5,152,813 90,995 1.80 582,629 0.63 0.1503
2015-05-15 2015-03-31 13F ECOLAB COM 278865100 5,061,818 177,439 3.63 578,971 13.41 0.1489
2015-02-13 2014-12-31 13F ECOLAB COM 278865100 4,884,379 -107,021 -2.14 510,515 -10.93 0.1350
2014-11-14 2014-09-30 13F ECOLAB COM 278865100 4,991,400 -239,444 -4.58 573,163 -1.59 0.1579
2014-08-14 2014-06-30 13F ECOLAB COM 278865100 5,230,844 -144,677 -2.69 582,402 0.33 0.1566
2014-05-15 2014-03-31 13F ECOLABINC COM 278865100 5,375,521 996,922 22.77 580,503 27.15 0.1611
2014-02-14 2013-12-31 13F ECOLAB COM 278865100 4,378,599 697,360 18.94 456,557 25.58 0.1313
2013-11-14 2013-09-30 13F ECOLAB COM 278865100 3,681,239 -34,384 -0.93 363,559 14.86 0.1138
2013-08-14 2013-06-30 13F ECOLAB COM 278865100 3,715,623 3,715,623 316,534 0.1033
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.