Ecolab Inc.
MX ˙ BMV ˙ US2788651006
SecurityMX:ECL / Ecolab Inc.
InstitutionDearborn Partners Llc
Latest Disclosed Ownership79,207 shares
Latest Disclosed Value $ 21,070,646
Dearborn Partners Llc reports 1,307.37% increase in ownership of ECL / Ecolab Inc.

On May 12, 2026 - Dearborn Partners Llc filed a 13F-HR form disclosing ownership of 79,207 shares of Ecolab Inc. (MX:ECL) valued at $21,070,646 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 11, 2026 disclosing 5,628 shares of Ecolab Inc.. This represents a change in shares of 1,307.37% 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)
2026-05-12 2026-03-31 13F Ecolab COM 278865100 79,207 73,579 1,307.37 21,071 1,326.54 1.1022
2026-02-11 2025-12-31 13F Ecolab COM 278865100 5,628 -229 -3.91 1,477 -7.86 0.0738
2025-11-10 2025-09-30 13F Ecolab COM 278865100 5,857 -540 -8.44 1,604 -6.96 0.0752
2025-08-14 2025-06-30 13F Ecolab COM 278865100 6,397 -300 -4.48 1,724 1.53 0.0816
2025-05-08 2025-03-31 13F Ecolab COM 278865100 6,697 -66 -0.98 1,698 7.13 0.0815
2025-02-07 2024-12-31 13F Ecolab COM 278865100 6,763 -100 -1.46 1,585 -9.59 0.0664
2024-11-06 2024-09-30 13F Ecolab COM 278865100 6,863 0 0.00 1,752 7.29 0.0711
2024-07-26 2024-06-30 13F Ecolab COM 278865100 6,863 -176 -2.50 1,633 0.49 0.0706
2024-05-08 2024-03-31 13F Ecolab COM 278865100 7,039 147 2.13 1,625 18.87 0.0698
2024-01-26 2023-12-31 13F Ecolab COM 278865100 6,892 0 0.00 1,367 17.14 0.0498
2023-11-01 2023-09-30 13F Ecolab COM 278865100 6,892 427 6.60 1,168 -3.23 0.0458
2023-08-03 2023-06-30 13F Ecolab COM 278865100 6,465 -664 -9.31 1,207 2.20 0.0462
2023-05-04 2023-03-31 13F Ecolab COM 278865100 7,129 -618 -7.98 1,180 4.70 0.0464
2023-02-02 2022-12-31 13F Ecolab COM 278865100 7,747 12 0.16 1,128 0.90 0.0455
2022-11-21 2022-09-30 13F/A-1 Ecolab COM 278865100 7,735 13 0.17 1,117 -5.90 0.0493
2022-10-25 2022-09-30 13F Ecolab COM 278865100 7,735 13 1,117 0.0461
2022-07-20 2022-06-30 13F Ecolab COM 278865100 7,722 -240 -3.01 1,187 -15.58 0.0501
2022-05-04 2022-03-31 13F Ecolab COM 278865100 7,962 -106 -1.31 1,406 -25.73 0.0533
2022-01-28 2021-12-31 13F Ecolab COM 278865100 8,068 -380 -4.50 1,893 7.43 0.0686
2021-10-27 2021-09-30 13F Ecolab COM 278865100 8,448 -43 -0.51 1,762 0.74 0.0716
2021-07-26 2021-06-30 13F Ecolab COM 278865100 8,491 -280 -3.19 1,749 -6.87 0.0703
2021-04-29 2021-03-31 13F Ecolab COM 278865100 8,771 -247 -2.74 1,878 -3.74 0.0800
2021-01-27 2020-12-31 13F Ecolab COM 278865100 9,018 0 0.00 1,951 8.27 0.0888
2020-10-20 2020-09-30 13F Ecolab COM 278865100 9,018 -147 -1.60 1,802 -1.15 0.0897
2020-07-30 2020-06-30 13F Ecolab COM 278865100 9,165 -601 -6.15 1,823 19.78 0.0985
2020-05-11 2020-03-31 13F Ecolab COM 278865100 9,766 212 2.22 1,522 -17.46 0.0944
2020-01-28 2019-12-31 13F Ecolab COM 278865100 9,554 -555 -5.49 1,844 -7.89 0.0939
2019-10-29 2019-09-30 13F Ecolab COM 278865100 10,109 13 0.13 2,002 0.45 0.1158
2019-07-29 2019-06-30 13F Ecolab COM 278865100 10,096 -29 -0.29 1,993 11.53 0.1217
2019-05-01 2019-03-31 13F Ecolab COM 278865100 10,125 -637 -5.92 1,787 12.67 0.1193
2019-02-04 2018-12-31 13F Ecolab COM 278865100 10,762 -427 -3.82 1,586 -9.58 0.1225
2018-10-24 2018-09-30 13F Ecolab COM 278865100 11,189 770 7.39 1,754 19.97 0.1229
2018-08-14 2018-06-30 13F Ecolab COM 278865100 10,419 -224 -2.10 1,462 0.21 0.1143
2018-05-01 2018-03-31 13F Ecolab COM 278865100 10,643 -230 -2.12 1,459 0.00 0.1126
2018-02-02 2017-12-31 13F Ecolab COM 278865100 10,873 -52 -0.48 1,459 3.84 0.1051
2017-11-13 2017-09-30 13F Ecolab COM 278865100 10,925 -6,565 -37.54 1,405 -39.49 0.1034
2017-08-09 2017-06-30 13F Ecolab COM 278865100 17,490 263 1.53 2,322 7.55 0.1716
2017-05-15 2017-03-31 13F Ecolab COM 278865100 17,227 -16 -0.09 2,159 6.83 0.1679
2017-01-26 2016-12-31 13F Ecolab COM 278865100 17,243 142 0.83 2,021 -2.93 0.1690
2016-10-24 2016-09-30 13F Ecolab COM 278865100 17,101 550 3.32 2,082 6.06 0.1757
2016-07-18 2016-06-30 13F Ecolab COM 278865100 16,551 362 2.24 1,963 8.75 0.1703
2016-04-19 2016-03-31 13F Ecolab COM 278865100 16,189 7,721 91.18 1,805 86.27 0.1678
2016-01-21 2015-12-31 13F Ecolab COM 278865100 8,468 -13,969 -62.26 969 -60.64 0.0902
2015-10-19 2015-09-30 13F Ecolab COM 278865100 22,437 -1,811 -7.47 2,462 -10.21 0.2467
2015-08-13 2015-06-30 13F Ecolab COM 278865100 24,248 -11,414 -32.01 2,742 -32.78 0.2643
2015-04-21 2015-03-31 13F Ecolab COM 278865100 35,662 35,662 0.00 4,079 0.3566
2015-01-28 2014-12-31 13F Ecolab COM 278865100 0 -42,307 -100.00 0 -100.00
2014-10-29 2014-09-30 13F Ecolab COM 278865100 42,307 845 2.04 4,858 5.24 0.4704
2014-07-23 2014-06-30 13F Ecolab COM 278865100 41,462 -96 -0.23 4,616 2.85 0.4527
2014-05-05 2014-03-31 13F Ecolab COM 278865100 41,558 -423 -1.01 4,488 2.54 0.4897
2014-02-14 2013-12-31 13F Ecolab COM 278865100 41,981 529 1.28 4,377 6.91 0.5105
2013-10-24 2013-09-30 13F Ecolab COM 278865100 41,452 -6,146 -12.91 4,094 0.96 0.5383
2013-07-22 2013-06-30 13F Ecolab COM 278865100 47,598 47,598 4,055 0.5762
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.