Ecolab Inc.
MX ˙ BMV ˙ US2788651006
SecurityMX:ECL / Ecolab Inc.
InstitutionArrow Financial Corp
Latest Disclosed Ownership2,141 shares
Latest Disclosed Value $ 569,548
Arrow Financial Corp reports 11.57% decrease in ownership of ECL / Ecolab Inc.

On May 11, 2026 - Arrow Financial Corp filed a 13F-HR form disclosing ownership of 2,141 shares of Ecolab Inc. (MX:ECL) valued at $569,548 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 5, 2026 disclosing 2,421 shares of Ecolab Inc.. This represents a change in shares of -11.57% 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)
2026-05-11 2026-03-31 13F ECOLAB Equities 278865100 2,141 -280 -11.57 570 -10.39 0.0308
2026-02-05 2025-12-31 13F ECOLAB Equities 278865100 2,421 -222 -8.40 636 -12.17 0.0634
2025-10-21 2025-09-30 13F ECOLAB Equities 278865100 2,643 -20 -0.75 724 0.84 0.0740
2025-08-11 2025-06-30 13F ECOLAB Equities 278865100 2,663 -200 -6.99 718 -1.10 0.0756
2025-05-05 2025-03-31 13F ECOLAB Equities 278865100 2,863 -1,500 -34.38 726 -29.06 0.0811
2025-02-14 2024-12-31 13F ECOLAB Equities 278865100 4,363 -93 -2.09 1,022 -10.11 0.0970
2024-11-04 2024-09-30 13F ECOLAB COMMON STOCK 278865100 4,456 -50 -1.11 1,138 6.06 0.1052
2024-07-30 2024-06-30 13F ECOLAB COMMON STOCK 278865100 4,506 -1,550 -25.59 1,072 -23.32 0.1046
2024-05-21 2024-03-31 13F ECOLAB COMMON STOCK 278865100 6,056 -900 -12.94 1,398 1.38 0.1388
2024-02-12 2023-12-31 13F ECOLAB COMMON STOCK 278865100 6,956 -98 -1.39 1,380 15.49 0.1432
2023-11-13 2023-09-30 13F ECOLAB COMMON STOCK 278865100 7,054 -10 -0.14 1,195 -9.41 0.1401
2023-08-09 2023-06-30 13F ECOLAB COMMON STOCK 278865100 7,064 -353 -4.76 1,319 7.42 0.1591
2023-05-03 2023-03-31 13F ECOLAB COMMON STOCK 278865100 7,417 0 0.00 1,228 122,600.00 0.1600
2023-02-02 2022-12-31 13F ECOLAB COMMON STOCK 278865100 7,417 0 0.00 1 -99.91 0.1465
2022-11-07 2022-09-30 13F ECOLAB COMMON STOCK 278865100 7,417 0 0.00 1,070 -6.22 0.1561
2022-07-25 2022-06-30 13F ECOLAB COMMON STOCK 278865100 7,417 -60 -0.80 1,141 -13.63 0.1556
2022-04-26 2022-03-31 13F ECOLAB COMMON STOCK 278865100 7,477 0 0.00 1,321 -24.73 0.1581
2022-01-28 2021-12-31 13F ECOLAB COMMON STOCK 278865100 7,477 -318 -4.08 1,755 7.87 0.2077
2021-10-21 2021-09-30 13F ECOLAB COMMON STOCK 278865100 7,795 -58 -0.74 1,627 0.56 0.2099
2021-07-21 2021-06-30 13F ECOLAB COMMON STOCK 278865100 7,853 -302 -3.70 1,618 -7.33 0.2052
2021-04-30 2021-03-31 13F ECOLAB COMMON STOCK 278865100 8,155 -176 -2.11 1,746 -3.16 0.2316
2021-02-08 2020-12-31 13F ECOLAB COMMON STOCK 278865100 8,331 -55 -0.66 1,803 7.58 0.3505
2020-11-06 2020-09-30 13F ECOLAB COMMON STOCK 278865100 8,386 -110 -1.29 1,676 -0.89 0.3543
2020-07-27 2020-06-30 13F ECOLAB COMMON STOCK 278865100 8,496 -75 -0.88 1,691 26.67 0.3687
2020-04-21 2020-03-31 13F ECOLAB COMMON STOCK 278865100 8,571 -128 -1.47 1,335 -20.49 0.3164
2020-02-10 2019-12-31 13F ECOLAB COMMON STOCK 278865100 8,699 -1,179 -11.94 1,679 -14.12 0.3272
2019-10-28 2019-09-30 13F ECOLAB COMMON STOCK 278865100 9,878 -476 -4.60 1,955 -4.35 0.4058
2019-07-26 2019-06-30 13F ECOLAB COMMON STOCK 278865100 10,354 -132 -1.26 2,044 10.37 0.4393
2019-04-26 2019-03-31 13F ECOLAB COMMON STOCK 278865100 10,486 -15 -0.14 1,852 19.64 0.4293
2019-02-04 2018-12-31 13F ECOLAB COMMON STOCK 278865100 10,501 -40 -0.38 1,548 -6.24 0.3959
2018-10-10 2018-09-30 13F ECOLAB COMMON STOCK 278865100 10,541 -139 -1.30 1,651 10.21 0.3467
2018-07-30 2018-06-30 13F ECOLAB COMMON STOCK 278865100 10,680 -254 -2.32 1,498 -0.07 0.3364
2018-04-25 2018-03-31 13F ECOLAB COMMON STOCK 278865100 10,934 3,893 55.29 1,499 58.79 0.3474
2018-02-02 2017-12-31 13F ECOLAB COMMON STOCK 278865100 7,041 -61 -0.86 944 3.28 0.2183
2017-10-18 2017-09-30 13F ECOLAB COMMON STOCK 278865100 7,102 -612 -7.93 914 -10.74 0.2169
2017-08-01 2017-06-30 13F ECOLAB COMMON STOCK 278865100 7,714 -279 -3.49 1,024 2.20 0.2451
2017-04-28 2017-03-31 13F ECOLAB COMMON STOCK 278865100 7,993 -961 -10.73 1,002 -4.57 0.2443
2017-02-14 2016-12-31 13F ECOLAB COMMON STOCK 278865100 8,954 -1,536 -14.64 1,050 -17.71 0.2603
2016-10-28 2016-09-30 13F ECOLAB COMMON STOCK 278865100 10,490 -5,572 -34.69 1,276 -33.02 0.3245
2016-08-01 2016-06-30 13F ECOLAB COMMON STOCK 278865100 16,062 101 0.63 1,905 6.96 0.4968
2016-05-04 2016-03-31 13F ECOLAB COMMON STOCK 278865100 15,961 339 2.17 1,781 -0.39 0.4726
2016-02-09 2015-12-31 13F ECOLAB COMMON STOCK 278865100 15,622 4,900 45.70 1,788 51.91 0.4775
2015-11-06 2015-09-30 13F ECOLAB COMMON STOCK 278865100 10,722 3,113 40.91 1,177 36.86 0.3344
2015-07-28 2015-06-30 13F ECOLAB COMMON STOCK 278865100 7,609 1,723 29.27 860 27.98 0.2329
2015-04-30 2015-03-31 13F ECOLAB COMMON STOCK 278865100 5,886 361 6.53 672 16.46 0.1808
2015-01-22 2014-12-31 13F ECOLAB COMMON STOCK 278865100 5,525 -1,010 -15.46 577 -22.96 0.1573
2014-10-31 2014-09-30 13F ECOLAB COMMON STOCK 278865100 6,535 -65 -0.98 749 1.90 0.2078
2014-07-30 2014-06-30 13F ECOLAB COMMON STOCK 278865100 6,600 -245 -3.58 735 -0.54 0.1987
2014-04-30 2014-03-31 13F ECOLAB COMMON STOCK 278865100 6,845 -715 -9.46 739 -6.22 0.2098
2014-01-31 2013-12-31 13F ECOLAB COMMON STOCK 278865100 7,560 -280 -3.57 788 1.68 0.2261
2013-10-29 2013-09-30 13F ECOLAB COMMON STOCK 278865100 7,840 160 2.08 775 18.32 0.2379
2013-08-08 2013-06-30 13F ECOLAB COMMON STOCK 278865100 7,680 7,680 655 0.2098
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.