Ecolab Inc.
MX ˙ BMV ˙ US2788651006
SecurityMX:ECL / Ecolab Inc.
InstitutionPatten & Patten Inc/tn
Latest Disclosed Ownership7,225 shares
Latest Disclosed Value $ 1,921,995
Patten & Patten Inc/tn reports 0.91% increase in ownership of ECL / Ecolab Inc.

On May 1, 2026 - Patten & Patten Inc/tn filed a 13F-HR form disclosing ownership of 7,225 shares of Ecolab Inc. (MX:ECL) valued at $1,921,995 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 3, 2026 disclosing 7,160 shares of Ecolab Inc.. This represents a change in shares of 0.91% 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)
2026-05-01 2026-03-31 13F ECOLAB COM 278865100 7,225 65 0.91 1,922 2.24 0.1160
2026-02-03 2025-12-31 13F ECOLAB COM 278865100 7,160 -752 -9.50 1,880 -13.25 0.1103
2025-10-31 2025-09-30 13F ECOLAB COM 278865100 7,912 -229 -2.81 2,167 -1.23 0.1273
2025-07-28 2025-06-30 13F ECOLAB COM 278865100 8,141 -4,380 -34.98 2,194 -30.91 0.1419
2025-05-07 2025-03-31 13F ECOLAB COM 278865100 12,521 -1,618 -11.44 3,174 -4.20 0.2125
2025-02-10 2024-12-31 13F ECOLAB COM 278865100 14,139 -565 -3.84 3,313 -11.75 0.2189
2024-11-04 2024-09-30 13F ECOLAB COM 278865100 14,704 -2,672 -15.38 3,754 -9.21 0.2492
2024-08-13 2024-06-30 13F ECOLAB COM 278865100 17,376 -10 -0.06 4,135 3.01 0.2892
2024-05-10 2024-03-31 13F ECOLAB COM 278865100 17,386 671 4.01 4,014 21.09 0.2859
2024-01-23 2023-12-31 13F Ecolab COM 278865100 16,715 -3,808 -18.55 3,315 -4.63 0.2722
2023-10-27 2023-09-30 13F Ecolab COM 278865100 20,523 -349 -1.67 3,477 -10.78 0.3054
2023-07-14 2023-06-30 13F Ecolab COM 278865100 20,872 -800 -3.69 3,897 8.61 0.3220
2023-04-25 2023-03-31 13F Ecolab COM 278865100 21,672 -4,983 -18.69 3,587 119,466.67 0.3154
2023-02-01 2022-12-31 13F Ecolab COM 278865100 26,655 -5,452 -16.98 4 -99.94 0.3522
2022-10-19 2022-09-30 13F Ecolab COM 278865100 32,107 -300 -0.93 4,637 -6.94 0.4398
2022-08-02 2022-06-30 13F Ecolab COM 278865100 32,407 783 2.48 4,983 -10.76 0.4375
2022-04-25 2022-03-31 13F Ecolab COM 278865100 31,624 -18,647 -37.09 5,584 -52.65 0.4075
2022-01-26 2021-12-31 13F Ecolab COM 278865100 50,271 556 1.12 11,793 13.70 0.8153
2021-10-22 2021-09-30 13F Ecolabs COM 278865100 49,715 -980 -1.93 10,372 -0.67 0.7889
2021-07-13 2021-06-30 13F Ecolabs COM 278865100 50,695 8,337 19.68 10,442 15.15 0.7955
2021-04-23 2021-03-31 13F Ecolabs COM 278865100 42,358 445 1.06 9,068 0.00 0.7416
2021-01-19 2020-12-31 13F Ecolabs COM 278865100 41,913 1,275 3.14 9,068 11.66 0.7901
2020-10-08 2020-09-30 13F Ecolabs COM 278865100 40,638 20,862 105.49 8,121 106.43 0.8092
2020-07-21 2020-06-30 13F Ecolabs COM 278865100 19,776 0 0.00 3,934 27.64 0.4304
2020-04-16 2020-03-31 13F Ecolabs COM 278865100 19,776 1,615 8.89 3,082 -12.07 0.4064
2020-01-13 2019-12-31 13F Ecolabs COM 278865100 18,161 -85 -0.47 3,505 -2.99 0.3523
2019-10-15 2019-09-30 13F Ecolabs COM 278865100 18,246 -575 -3.06 3,613 -2.77 0.3948
2019-07-11 2019-06-30 13F Ecolabs COM 278865100 18,821 -85 -0.45 3,716 11.32 0.4021
2019-04-23 2019-03-31 13F Ecolabs COM 278865100 18,906 -225 -1.18 3,338 18.41 0.3661
2019-01-17 2018-12-31 13F Ecolabs COM 278865100 19,131 -4,575 -19.30 2,819 -24.16 0.3457
2018-10-17 2018-09-30 13F Ecolabs COM 278865100 23,706 -950 -3.85 3,717 7.43 0.3679
2018-07-18 2018-06-30 13F Ecolabs COM 278865100 24,656 900 3.79 3,460 6.27 0.3553
2018-04-20 2018-03-31 13F Ecolabs COM 278865100 23,756 435 1.87 3,256 4.06 0.3327
2018-01-22 2017-12-31 13F Ecolabs COM 278865100 23,321 2,925 14.34 3,129 19.29 0.3130
2017-10-12 2017-09-30 13F Ecolabs COM 278865100 20,396 83 0.41 2,623 -2.74 0.2764
2017-07-19 2017-06-30 13F Ecolabs COM 278865100 20,313 -100 -0.49 2,697 5.39 0.2982
2017-04-19 2017-03-31 13F Ecolabs COM 278865100 20,413 7,375 56.57 2,559 67.47 0.2948
2017-01-27 2016-12-31 13F Ecolabs COM 278865100 13,038 3,990 44.10 1,528 38.78 0.1880
2016-10-12 2016-09-30 13F Ecolabs COM 278865100 9,048 -18 -0.20 1,101 2.42 0.1418
2016-07-07 2016-06-30 13F Ecolabs COM 278865100 9,066 1,023 12.72 1,075 19.84 0.1488
2016-04-15 2016-03-31 13F Ecolabs COM 278865100 8,043 -23,605 -74.59 897 -75.22 0.1282
2016-02-29 2015-12-31 13F Ecolabs COM 278865100 31,648 -9,588 -23.25 3,620 -19.98 0.5005
2015-10-22 2015-09-30 13F Ecolabs COM 278865100 41,236 26,713 183.94 4,524 175.52 0.6904
2015-08-31 2015-06-30 13F Ecolabs COM 278865100 14,523 85 0.59 1,642 -0.55 0.2384
2015-04-16 2015-03-31 13F Ecolabs COM 278865100 14,438 14,438 1,651 0.2375
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.