Ecolab Inc.
US ˙ NYSE ˙ US2788651006

SecurityECL / Ecolab Inc.
InstitutionComerica Bank
Latest Disclosed Ownership63,721 shares
Latest Disclosed Value $ 16,728,205
Comerica Bank reports 6.51% decrease in ownership of ECL / Ecolab Inc.

On January 29, 2026 - Comerica Bank filed a 13F-HR form disclosing ownership of 63,721 shares of Ecolab Inc. (US:ECL) valued at $16,728,037 USD as of December 31, 2025. The entity filed a previous 13F-HR on November 14, 2025 disclosing 68,161 shares of Ecolab Inc.. This represents a change in shares of -6.51% during the quarter. The current value of the position is $16,291,548 USD.

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)
2026-01-29 2025-12-31 13F ECOLAB COM 278865100 63,721 -4,440 -6.51 16,728 -10.38 0.0667
2025-11-14 2025-09-30 13F ECOLAB COM 278865100 68,161 -1,216 -1.75 18,667 -0.14 0.0702
2025-08-14 2025-06-30 13F ECOLAB COM 278865100 69,377 -1,038 -1.47 18,693 4.71 0.0726
2025-05-14 2025-03-31 13F ECOLAB COM 278865100 70,415 -1,211 -1.69 17,852 6.36 0.0750
2025-02-14 2024-12-31 13F/A-1 ECOLAB COM 278865100 71,626 -1,872 -2.55 16,783 -10.57 0.0677
2025-02-14 2024-12-31 13F ECOLAB COM 278865100 71,626 -1,872 16,783 0.0562
2024-11-14 2024-09-30 13F ECOLAB COM 278865100 73,498 -1,528 -2.04 18,766 5.10 0.0742
2024-08-15 2024-06-30 13F ECOLAB COMMON 278865100 75,026 -1,253 -1.64 17,856 1.38 0.0743
2024-05-16 2024-03-31 13F ECOLAB COMMON 278865100 76,279 238 0.31 17,613 16.77 0.0759
2024-02-14 2023-12-31 13F ECOLAB COMMON 278865100 76,041 -2,468 -3.14 15,083 13.41 0.0695
2023-11-21 2023-09-30 13F ECOLAB COMMON 278865100 78,509 26,136 49.90 13,299 0.0693
2023-08-22 2023-06-30 13F ECOLAB EQU 278865100 52,373 4,387 9.14 0 -100.00 0.0003
2023-01-26 2022-12-31 13F ECOLAB COM 278865100 47,986 -716 -1.47 7 -99.90 0.0571
2022-10-28 2022-09-30 13F ECOLAB COM 278865100 48,702 1,086 2.28 7,229 -3.79 0.0609
2022-08-02 2022-06-30 13F ECOLAB COM 278865100 47,616 -287 -0.60 7,514 -13.94 0.0617
2022-04-27 2022-03-31 13F ECOLAB COM 278865100 47,903 -782 -1.61 8,731 -5.06 0.0634
2022-02-18 2021-12-31 13F ECOLAB COM 278865100 48,685 -6,780 -12.22 9,196 -25.13 0.0677
2021-11-22 2021-09-30 13F ECOLAB COM 278865100 55,465 -13,662 -19.76 12,283 -19.41 0.0740
2021-08-26 2021-06-30 13F ECOLAB COM 278865100 69,127 -3,035 -4.21 15,242 -6.86 0.0910
2021-04-28 2021-03-31 13F ECOLAB COM 278865100 72,162 -1,069 -1.46 16,365 5.22 0.0976
2021-01-28 2020-12-31 13F ECOLAB COM 278865100 73,231 -3,112 -4.08 15,553 -0.56 0.0987
2020-10-30 2020-09-30 13F ECOLAB COM 278865100 76,343 -6,664 -8.03 15,641 -10.41 0.1135
2020-07-31 2020-06-30 13F ECOLAB COM 278865100 83,007 -9,431 -10.20 17,458 4.88 0.1345
2020-05-01 2020-03-31 13F ECOLAB COM 278865100 92,438 19 0.02 16,646 -9.71 0.1527
2020-02-07 2019-12-31 13F ECOLAB COM 278865100 92,419 -4,107 -4.25 18,436 0.09 0.1396
2019-10-31 2019-09-30 13F ECOLAB COM 278865100 96,526 -5,571 -5.46 18,420 -7.92 0.1456
2019-08-02 2019-06-30 13F ECOLAB COM 278865100 102,097 -37 -0.04 20,005 7.28 0.1602
2019-05-02 2019-03-31 13F ECOLAB COM 278865100 102,134 -1,992 -1.91 18,648 15.54 0.1512
2019-02-06 2018-12-31 13F ECOLAB COM 278865100 104,126 -869 -0.83 16,140 3.87 0.1371
2018-11-01 2018-09-30 13F ECOLAB COM 278865100 104,995 -13,368 -11.29 15,538 -8.65 0.1253
2018-08-01 2018-06-30 13F ECOLAB COM 278865100 118,363 -13,603 -10.31 17,010 -13.48 0.1189
2018-05-01 2018-03-31 13F ECOLAB COM 278865100 131,966 -19,296 -12.76 19,660 -5.34 0.1405
2018-02-02 2017-12-31 13F ECOLAB COM 278865100 151,262 -8,622 -5.39 20,770 -0.77 0.1384
2017-11-06 2017-09-30 13F ECOLAB COM 278865100 159,884 -2,277 -1.40 20,932 -2.24 0.1515
2017-08-03 2017-06-30 13F ECOLAB COM 278865100 162,161 15,499 10.57 21,411 12.84 0.1602
2017-05-03 2017-03-31 13F ECOLAB COM 278865100 146,662 -4,778 -3.16 18,974 5.66 0.1440
2017-02-08 2016-12-31 13F ECOLAB COM 278865100 151,440 -5,302 -3.38 17,957 -6.71 0.1421
2016-08-11 2016-06-30 13F ECOLAB COM 278865100 156,742 -22,402 -12.51 19,248 -6.58 0.1662
2016-05-11 2016-03-31 13F ECOLAB COM 278865100 179,144 7,496 4.37 20,604 15.03 0.1840
2016-02-05 2015-12-31 13F ECOLAB COM 278865100 171,648 -1,704 -0.98 17,912 -5.83 0.1758
2015-11-12 2015-09-30 13F ECOLAB COM 278865100 173,352 -212,550 -55.08 19,021 -56.41 0.1801
2015-08-13 2015-06-30 13F ECOLAB COM 278865100 385,902 189,617 96.60 43,636 94.36 0.1873
2015-05-15 2015-03-31 13F ECOLAB COM 278865100 196,285 -234,337 -54.42 22,451 -50.12 0.1901
2015-02-13 2014-12-31 13F ECOLAB COM 278865100 430,622 217,245 101.81 45,008 83.69 0.1946
2014-10-21 2014-09-30 13F ECOLAB COM 278865100 213,377 -1,804 -0.84 24,502 2.27 0.2163
2014-08-12 2014-06-30 13F ECOLAB COM 278865100 215,181 -27,521 -11.34 23,958 -8.59 0.2037
2014-05-15 2014-03-31 13F ECOLAB COM 278865100 242,702 -2,911 -1.19 26,209 2.34 0.2008
2014-02-11 2013-12-31 13F ECOLAB COM 278865100 245,613 -62,239 -20.22 25,610 -15.76 0.1985
2013-11-12 2013-09-30 13F ECOLAB COM 278865100 307,852 -4,048 -1.30 30,403 14.43 0.2116
2013-08-13 2013-06-30 13F/A-1 ECOLAB COM 278865100 311,900 311,900 26,570 0.2166
2013-08-08 2013-06-30 13F ECOLAB COM 278865100 2,732,477 232,775
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.