Ecolab Inc.
MX ˙ BMV ˙ US2788651006
SecurityMX:ECL / Ecolab Inc.
InstitutionWinslow Capital Management, LLC
Latest Disclosed Ownership528,620 shares
Latest Disclosed Value $ 140,623,493
Winslow Capital Management, LLC reports 16.60% decrease in ownership of ECL / Ecolab Inc.

On May 14, 2026 - Winslow Capital Management, LLC filed a 13F-HR form disclosing ownership of 528,620 shares of Ecolab Inc. (MX:ECL) valued at $140,623,493 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 12, 2026 disclosing 633,821 shares of Ecolab Inc.. This represents a change in shares of -16.60% 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 528,620 -105,201 -16.60 140,623 -15.49 0.3373
2026-02-12 2025-12-31 13F Ecolab COM 278865100 633,821 -544,251 -46.20 166,391 -48.43 0.5583
2025-11-13 2025-09-30 13F Ecolab COM 278865100 1,178,072 -24,136 -2.01 322,627 -0.40 1.0657
2025-08-13 2025-06-30 13F Ecolab COM 278865100 1,202,208 217,856 22.13 323,923 29.80 1.0819
2025-05-14 2025-03-31 13F Ecolab COM 278865100 984,352 -442,731 -31.02 249,553 -25.37 0.9954
2025-02-13 2024-12-31 13F Ecolab COM 278865100 1,427,083 708,432 98.58 334,394 82.24 1.1880
2024-11-13 2024-09-30 13F Ecolab COM 278865100 718,651 -192,226 -21.10 183,493 -15.36 0.6593
2024-08-13 2024-06-30 13F Ecolab COM 278865100 910,877 860,052 1,692.18 216,789 1,747.36 0.7820
2024-05-14 2024-03-31 13F Ecolab COM 278865100 50,825 50,825 11,735 0.0442
2022-05-13 2022-03-31 13F Ecolab COM 278865100 0 -77,368 -100.00 0 -100.00
2022-02-11 2021-12-31 13F Ecolab COM 278865100 77,368 29,852 62.83 18,150 83.09 0.0673
2021-11-12 2021-09-30 13F Ecolab COM 278865100 47,516 5,180 12.24 9,913 13.68 0.0389
2021-08-13 2021-06-30 13F Ecolab COM 278865100 42,336 -270 -0.63 8,720 -4.40 0.0338
2021-05-13 2021-03-31 13F Ecolab COM 278865100 42,606 3,830 9.88 9,121 8.71 0.0385
2021-02-12 2020-12-31 13F Ecolab COM 278865100 38,776 38,776 8,390 0.0350
2019-11-14 2019-09-30 13F Ecolab COM 278865100 0 -17,249 -100.00 0 -100.00
2019-08-12 2019-06-30 13F Ecolab COM 278865100 17,249 -815 -4.51 3,406 6.80 0.0182
2019-05-14 2019-03-31 13F Ecolab COM 278865100 18,064 -1,410 -7.24 3,189 11.11 0.0173
2019-02-13 2018-12-31 13F ECOLAB INC COM COM 278865100 19,474 -2,458 -11.21 2,870 -16.55 0.0178
2018-11-09 2018-09-30 13F Ecolab COM 278865100 21,932 -1,478,364 -98.54 3,439 -98.37 0.0170
2018-08-14 2018-06-30 13F/A-1 Ecolab COM 278865100 1,500,296 -190,295 -11.26 210,537 -9.15 1.1039
2018-08-13 2018-06-30 13F Ecolab COM 278865100 1,500,296 -190,295 210,537
2018-05-14 2018-03-31 13F Ecolab COM 278865100 1,690,591 -72,949 -4.14 231,729 -2.07 1.2531
2018-02-13 2017-12-31 13F/A-2 Ecolab COM 278865100 1,763,540 -155,167 -8.09 236,631 -4.11 1.3016
2018-02-12 2017-12-31 13F/A-1 Ecolab COM 278865100 1,763,540 0 236,631 1.3076
2018-02-12 2017-12-31 13F Ecolab COM 278865100 1,763,540 -155,167 236,631
2017-11-14 2017-09-30 13F Ecolab COM 278865100 1,918,707 475,759 32.97 246,765 28.82 1.3289
2017-08-11 2017-06-30 13F Ecolab COM 278865100 1,442,948 -271,583 -15.84 191,551 -10.86 1.0200
2017-05-12 2017-03-31 13F ECOLAB COM 278865100 1,714,531 -254,920 -12.94 214,899 -6.91 1.0252
2017-02-10 2016-12-31 13F ECOLAB COM 278865100 1,969,451 72,895 3.84 230,859 0.00 1.0622
2016-11-01 2016-09-30 13F ECOLAB COM 278865100 1,896,556 -357,597 -15.86 230,848 -13.65 0.9604
2016-08-11 2016-06-30 13F ECOLAB COM 278865100 2,254,153 -127,801 -5.37 267,342 0.64 1.0913
2016-05-10 2016-03-31 13F ECOLAB COM 278865100 2,381,954 -1,504,108 -38.71 265,635 -40.24 1.0428
2016-02-01 2015-12-31 13F ECOLAB COM 278865100 3,886,062 474,525 13.91 444,488 18.75 1.5886
2015-11-10 2015-09-30 13F ECOLAB COM 278865100 3,411,537 160,166 4.93 374,313 1.82 1.3639
2015-08-13 2015-06-30 13F ECOLAB COM 278865100 3,251,371 240,666 7.99 367,633 6.76 1.2214
2015-05-13 2015-03-31 13F ECOLAB COM 278865100 3,010,705 24,927 0.83 344,364 10.35 1.0612
2015-02-11 2014-12-31 13F ECOLAB COM 278865100 2,985,778 -190,520 -6.00 312,073 -14.44 0.9636
2014-11-10 2014-09-30 13F ECOLAB COM 278865100 3,176,298 -62,588 -1.93 364,733 1.14 1.1146
2014-08-12 2014-06-30 13F ECOLAB COM 278865100 3,238,886 -98,635 -2.96 360,618 0.06 1.0985
2014-05-13 2014-03-31 13F ECOLAB COM 278865100 3,337,521 -139,600 -4.01 360,419 -0.59 1.1283
2014-02-12 2013-12-31 13F ECOLAB COM 278865100 3,477,121 -93,574 -2.62 362,560 2.81 1.0688
2013-11-14 2013-09-30 13F ECOLAB COM 278865100 3,570,695 -302,265 -7.80 352,642 6.88 1.1439
2013-08-13 2013-06-30 13F ECOLAB COM 278865100 3,872,960 3,872,960 329,937 1.0765
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.