Ecolab Inc.
MX ˙ BMV ˙ US2788651006
SecurityMX:ECL / Ecolab Inc.
InstitutionNorthern Trust Corp
Latest Disclosed Ownership2,780,360 shares
Latest Disclosed Value $ 739,631,367
Northern Trust Corp reports 2.48% decrease in ownership of ECL / Ecolab Inc.

On May 14, 2026 - Northern Trust Corp filed a 13F-HR form disclosing ownership of 2,780,360 shares of Ecolab Inc. (MX:ECL) valued at $739,631,367 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 2,851,008 shares of Ecolab Inc.. This represents a change in shares of -2.48% 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)
2026-05-14 2026-03-31 13F ECOLAB COM 278865100 2,780,360 -70,648 -2.48 739,631 -1.18 0.0200
2026-02-17 2025-12-31 13F ECOLAB COM 278865100 2,851,008 -76,735 -2.62 748,447 -6.65 0.0197
2025-11-14 2025-09-30 13F ECOLAB COM 278865100 2,927,743 -129,350 -4.23 801,792 -2.66 0.1026
2025-08-13 2025-06-30 13F ECOLAB COM 278865100 3,057,093 -50,993 -1.64 823,703 4.54 0.1133
2025-05-13 2025-03-31 13F ECOLAB COM 278865100 3,108,086 -20,972 -0.67 787,962 7.47 0.1170
2025-02-14 2024-12-31 13F ECOLAB COM 278865100 3,129,058 514,944 19.70 733,201 9.85 0.1038
2024-11-13 2024-09-30 13F ECOLAB COM 278865100 2,614,114 -21,776 -0.83 667,462 6.40 0.1093
2024-08-14 2024-06-30 13F ECOLAB COM 278865100 2,635,890 106,151 4.20 627,342 7.40 0.1057
2024-05-14 2024-03-31 13F ECOLAB COM 278865100 2,529,739 -106,609 -4.04 584,117 11.70 0.1009
2024-02-13 2023-12-31 13F ECOLAB COM 278865100 2,636,348 -138,612 -5.00 522,920 11.24 0.0947
2023-11-13 2023-09-30 13F ECOLAB COM 278865100 2,774,960 123,572 4.66 470,078 -5.03 0.0911
2023-08-11 2023-06-30 13F ECOLAB COM 278865100 2,651,388 -136,392 -4.89 494,988 7.27 0.0951
2023-05-15 2023-03-31 13F ECOLAB COM 278865100 2,787,780 10,559 0.38 461,461 14.15 0.0915
2023-02-13 2022-12-31 13F ECOLAB COM 278865100 2,777,221 -47,867 -1.69 404,252 -0.92 0.0848
2022-11-14 2022-09-30 13F ECOLAB COM 278865100 2,825,088 -52,666 -1.83 407,999 -7.79 0.0932
2022-08-12 2022-06-30 13F ECOLAB COM 278865100 2,877,754 -202,128 -6.56 442,484 -18.63 0.0948
2022-05-13 2022-03-31 13F ECOLAB COM 278865100 3,079,882 32,366 1.06 543,784 -23.94 0.0957
2022-02-08 2021-12-31 13F ECOLAB COM 278865100 3,047,516 -58,001 -1.87 714,915 10.35 0.1171
2021-11-15 2021-09-30 13F ECOLAB COM 278865100 3,105,517 33,103 1.08 647,872 2.38 0.1147
2021-08-13 2021-06-30 13F ECOLAB COM 278865100 3,072,414 -67,336 -2.14 632,824 -5.85 0.1115
2021-05-12 2021-03-31 13F ECOLAB COM 278865100 3,139,750 -15,139 -0.48 672,125 -1.53 0.1250
2021-02-11 2020-12-31 13F ECOLAB COM 278865100 3,154,889 -52,319 -1.63 682,592 6.50 0.1330
2020-11-16 2020-09-30 13F ECOLAB COM 278865100 3,207,208 -1,578 -0.05 640,929 0.40 0.1405
2020-08-14 2020-06-30 13F ECOLAB COM 278865100 3,208,786 -32,644 -1.01 638,388 26.39 0.1512
2020-05-14 2020-03-31 13F ECOLAB COM 278865100 3,241,430 27,418 0.85 505,112 -18.57 0.1450
2020-02-14 2019-12-31 13F ECOLAB COM 278865100 3,214,012 -11,222 -0.35 620,272 -2.89 0.1388
2019-11-13 2019-09-30 13F ECOLAB COM 278865100 3,225,234 23,933 0.75 638,725 1.05 0.1529
2019-08-13 2019-06-30 13F ECOLAB COM 278865100 3,201,301 1,585 0.05 632,065 11.89 0.1499
2019-05-13 2019-03-31 13F ECOLAB COM 278865100 3,199,716 22,023 0.69 564,878 20.64 0.1395
2019-02-12 2018-12-31 13F ECOLAB COM 278865100 3,177,693 135,035 4.44 468,233 -1.84 0.1313
2018-11-14 2018-09-30 13F ECOLAB COM 278865100 3,042,658 -52,381 -1.69 477,028 9.83 0.1167
2018-09-18 2018-06-30 13F/A-1 ECOLAB COM 278865100 3,095,039 -22,429 -0.72 434,327 1.64 0.1103
2018-08-14 2018-06-30 13F ECOLAB COM 278865100 3,114,066 -3,402 436,997
2018-05-09 2018-03-31 13F ECOLAB COM 278865100 3,117,468 -52,734 -1.66 427,311 0.45 0.1112
2018-02-14 2017-12-31 13F ECOLAB COM 278865100 3,170,202 -59,495 -1.84 425,378 2.41 0.1077
2017-11-13 2017-09-30 13F ECOLAB COM 278865100 3,229,697 143,072 4.64 415,372 1.37 0.1083
2017-08-11 2017-06-30 13F ECOLAB COM 278865100 3,086,625 -41,072 -1.31 409,750 4.52 0.1146
2017-05-12 2017-03-31 13F ECOLAB COM 278865100 3,127,697 26,079 0.84 392,025 7.83 0.1130
2017-02-13 2016-12-31 13F ECOLAB COM 278865100 3,101,618 -58,579 -1.85 363,571 -5.48 0.1115
2016-11-09 2016-09-30 13F ECOLAB COM 278865100 3,160,197 -10,931 -0.34 384,659 2.28 0.1198
2016-08-12 2016-06-30 13F ECOLAB COM 278865100 3,171,128 -1,120 -0.04 376,097 6.38 0.1221
2016-08-19 2016-03-31 13F/A-1 ECOLAB COM 278865100 3,172,248 -4,408 -0.14 353,549 -2.70 0.1173
2016-05-13 2016-03-31 13F Ecolab COMM 278865100 3,172,232 353,766
2016-02-12 2015-12-31 13F Ecolab COMM 278865100 3,176,656 -187,813 -5.58 363,346 -1.57 0.1204
2015-11-12 2015-09-30 13F Ecolab COMM 278865100 3,364,469 901 0.03 369,150 -2.94 0.1232
2015-08-13 2015-06-30 13F ECOLAB COM 278865100 3,363,568 -114,487 -3.29 380,319 -4.40 0.2578
2015-08-13 2015-06-30 13F Ecolab COMM 027886510 91,283 -3,386,772 10,321 0.0070
2015-05-14 2015-03-31 13F Ecolab COMM 278865100 3,478,055 -69,557 -1.96 397,819 7.29 0.1196
2015-02-12 2014-12-31 13F Ecolab COM 278865100 3,547,612 -10,836 -0.30 370,796 -9.26 0.1119
2014-11-13 2014-09-30 13F Ecolab COMM 278865100 3,558,448 -111,438 -3.04 408,616 0.00 0.1283
2014-08-14 2014-06-30 13F ECOLAB com 278865100 3,669,886 32,763 0.90 408,605 4.03 0.1273
2014-05-14 2014-03-31 13F ECOLAB COMM 278865100 3,637,123 -119,973 -3.19 392,773 0.26 0.1236
2014-02-21 2013-12-31 13F/A-1 ECOLAB COM 278865100 3,757,096 47,026 1.27 391,752 6.92 0.1256
2014-02-12 2013-12-31 13F ECOLAB COM 278865100 3,757,096 391,752
2013-11-13 2013-09-30 13F ECOLAB COM 278865100 3,710,070 -120,368 -3.14 366,406 12.29 0.1290
2013-08-09 2013-06-30 13F ECOLAB COM 278865100 3,830,438 3,830,438 326,316 0.1183
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.