Ecolab Inc.
MX ˙ BMV ˙ US2788651006
SecurityMX:ECL / Ecolab Inc.
InstitutionState Street Corp
Latest Disclosed Ownership11,222,653 shares
Latest Disclosed Value $ 2,993,452,789
State Street Corp reports 1.15% increase in ownership of ECL / Ecolab Inc.

On May 15, 2026 - State Street Corp filed a 13F-HR form disclosing ownership of 11,222,653 shares of Ecolab Inc. (MX:ECL) valued at $2,993,452,789 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 11,094,553 shares of Ecolab Inc.. This represents a change in shares of 1.15% 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 11,222,653 128,100 1.15 2,993,453 2.50 0.1034
2026-02-13 2025-12-31 13F ECOLAB COM 278865100 11,094,553 -110,972 -0.99 2,920,561 -5.05 0.0980
2025-11-14 2025-09-30 13F ECOLAB COM 278865100 11,205,525 1,574 0.01 3,075,818 1.65 0.1067
2025-08-14 2025-06-30 13F ECOLAB COM 278865100 11,203,951 -69,508 -0.62 3,025,938 5.60 0.1134
2025-05-15 2025-03-31 13F ECOLAB COM 278865100 11,273,459 -541,576 -4.58 2,865,485 3.23 0.1181
2025-02-14 2024-12-31 13F ECOLAB COM 278865100 11,815,035 536,758 4.76 2,775,950 -3.81 0.1095
2024-11-14 2024-09-30 13F ECOLAB COM 278865100 11,278,277 -188,634 -1.65 2,886,039 5.50 0.1174
2024-08-14 2024-06-30 13F ECOLAB COM 278865100 11,466,911 -10,963 -0.10 2,735,454 2.97 0.1195
2024-05-15 2024-03-31 13F ECOLAB COM 278865100 11,477,874 -202,999 -1.74 2,656,668 14.34 0.1188
2024-02-14 2023-12-31 13F ECOLAB COM 278865100 11,680,873 512,493 4.59 2,323,433 22.43 0.1130
2023-11-14 2023-09-30 13F ECOLAB COM 278865100 11,168,380 -63,241 -0.56 1,897,805 -9.74 0.1052
2023-08-14 2023-06-30 13F ECOLAB COM 278865100 11,231,621 1,988 0.02 2,102,674 12.76 0.1104
2023-05-15 2023-03-31 13F ECOLAB COM 278865100 11,229,633 141,180 1.27 1,864,760 15.12 0.1052
2023-05-15 2022-12-31 13F/A-99 ECOLAB COM 278865100 11,088,453 -208,465 -1.85 1,619,868 -1.06 0.0952
2023-05-15 2022-12-31 13F ECOLAB COM 278865100 11,088,453 -208,465 1,619,868 0.0952
2022-11-15 2022-09-30 13F ECOLAB COM 278865100 11,296,918 -247,579 -2.14 1,637,227 -8.07 0.1036
2022-08-15 2022-06-30 13F ECOLAB COM 278865100 11,544,497 146,785 1.29 1,780,863 -11.75 0.1067
2022-05-16 2022-03-31 13F ECOLAB COM 278865100 11,397,712 -81,593 -0.71 2,018,043 -25.22 0.0998
2022-02-14 2021-12-31 13F ECOLAB COM 278865100 11,479,305 191,446 1.70 2,698,604 14.34 0.1280
2021-11-15 2021-09-30 13F ECOLAB COM 278865100 11,287,859 -455,638 -3.88 2,360,260 -2.65 0.1247
2021-08-16 2021-06-30 13F ECOLAB COM 278865100 11,743,497 587,269 5.26 2,424,409 1.29 0.1278
2021-07-09 2021-03-31 13F/A-1 ECOLAB COM 278865100 11,156,228 186,542 1.70 2,393,471 0.62 0.1372
2021-05-17 2021-03-31 13F ECOLAB COM 278865100 11,156,228 186,542 2,393,471 0.1373
2021-02-16 2020-12-31 13F ECOLAB COM 278865100 10,969,686 27,211 0.25 2,378,671 8.52 0.1456
2020-11-10 2020-09-30 13F ECOLAB COM 278865100 10,942,475 -362,122 -3.20 2,191,860 -2.77 0.1496
2020-08-14 2020-06-30 13F ECOLAB COM 278865100 11,304,597 183,961 1.65 2,254,288 29.69 0.1639
2020-06-19 2020-03-31 13F/A-1 ECOLAB COM 278865100 11,120,636 -285,537 -2.50 1,738,173 -21.23 0.1520
2020-05-11 2020-03-31 13F ECOLAB COM 278865100 11,120,636 -285,537 1,738,173 152,646.5879
2020-02-06 2019-12-31 13F ECOLAB COM 278865100 11,406,173 -135,221 -1.17 2,206,569 -3.68 0.1511
2019-11-14 2019-09-30 13F ECOLAB COM 278865100 11,541,394 -20,938 -0.18 2,290,945 0.12 0.1708
2019-08-14 2019-06-30 13F ECOLAB COM 278865100 11,562,332 -89,299 -0.77 2,288,089 10.95 0.1706
2019-05-15 2019-03-31 13F ECOLAB COM 278865100 11,651,631 580,690 5.25 2,062,317 26.03 0.1609
2019-02-12 2018-12-31 13F ECOLAB COM 278865100 11,070,941 -460,954 -4.00 1,636,331 -9.14 0.1490
2018-11-09 2018-09-30 13F ECOLAB Common equity shares 278865100 11,531,895 413,676 3.72 1,800,946 15.43 0.1383
2018-08-14 2018-06-30 13F ECOLAB Common equity shares 278865100 11,118,219 59,913 0.54 1,560,241 2.93 0.1304
2018-05-15 2018-03-31 13F ECOLAB Common equity shares 278865100 11,058,306 -482,687 -4.18 1,515,758 -2.12 0.1287
2018-02-14 2017-12-31 13F ECOLAB Common equity shares 278865100 11,540,993 160,998 1.41 1,548,571 5.81 0.1245
2017-11-14 2017-09-30 13F ECOLAB Common equity shares 278865100 11,379,995 -286,543 -2.46 1,463,577 -5.50 0.1263
2017-08-14 2017-06-30 13F ECOLAB Common equity shares 278865100 11,666,538 -269,405 -2.26 1,548,735 3.52 0.1370
2017-05-15 2017-03-31 13F ECOLAB Common equity shares 278865100 11,935,943 31,277 0.26 1,496,059 7.21 0.1335
2017-02-09 2016-12-31 13F ECOLAB Common equity shares 278865100 11,904,666 336,475 2.91 1,395,464 -0.90 0.1313
2017-01-13 2016-09-30 13F/A-1 ECOLAB Common equity shares 278865100 11,568,191 344,163 3.07 1,408,079 5.78 0.1419
2016-11-14 2016-09-30 13F ECOLAB Common equity shares 278865100 8,683,634 1,056,970
2016-08-12 2016-06-30 13F ECOLAB Common equity shares 278865100 11,224,028 -26,311 -0.23 1,331,159 6.10 0.1430
2016-05-20 2016-03-31 13F/A-1 ECOLAB Common equity shares 278865100 11,250,339 135,777 1.22 1,254,647 -1.31 0.1356
2016-05-12 2016-03-31 13F ECOLAB Common equity shares 278865100 11,250,339 1,254,647
2016-02-16 2015-12-31 13F ECOLAB Common equity shares 278865100 11,114,562 -232,906 -2.05 1,271,286 2.11 0.1389
2015-11-16 2015-09-30 13F ECOLAB Common equity shares 278865100 11,347,468 147,440 1.32 1,245,048 -1.69 0.1449
2015-08-13 2015-06-30 13F ECOLAB Common equity shares 278865100 11,200,028 -1,164,350 -9.42 1,266,393 -10.45 0.1354
2015-05-15 2015-03-31 13F ECOLAB Common equity shares 278865100 12,364,378 -261,594 -2.07 1,414,238 7.17 0.1451
2015-02-11 2014-12-31 13F ECOLAB Common equity shares 278865100 12,625,972 -347,220 -2.68 1,319,667 -11.41 0.1314
2014-11-12 2014-09-30 13F/A-1 ECOLAB Common equity shares 278865100 12,973,192 134,068 1.04 1,489,703 4.21 0.1603
2014-11-10 2014-09-30 13F ECOLAB Common equity shares 278865100 12,973,192 1,489,703
2014-08-12 2014-06-30 13F ECOLAB Common equity shares 278865100 12,839,124 220,864 1.75 1,429,511 4.91 0.1544
2014-05-15 2014-03-31 13F/A-1 ECOLAB Common equity shares 278865100 12,618,260 -102,928 -0.81 1,362,639 2.73 0.1549
2014-05-13 2014-03-31 13F ECOLAB Common equity shares 278865100 12,618,260 1,362,639
2014-02-06 2013-12-31 13F/A-1 ECOLAB Common equity shares 278865100 12,721,188 229,208 1.83 1,326,447 7.52 0.1476
2014-02-06 2013-12-31 13F ECOLAB Common equity shares 278865100 12,237,335 879,869
2013-11-12 2013-09-30 13F ECOLAB Common equity shares 278865100 12,491,980 269,713 2.21 1,233,712 18.49 0.1520
2013-08-08 2013-06-30 13F ECOLAB Common equity shares 278865100 12,222,267 12,222,267 1,041,220 0.1357
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.