Ecolab Inc.
US ˙ NYSE ˙ US2788651006

SecurityECL / Ecolab Inc.
InstitutionPatten Group, Inc.
Latest Disclosed Ownership7,522 shares
Latest Disclosed Value $ 2,001,002
Patten Group, Inc. reports 3.14% decrease in ownership of ECL / Ecolab Inc.

On April 24, 2026 - Patten Group, Inc. filed a 13F-HR form disclosing ownership of 7,522 shares of Ecolab Inc. (US:ECL) valued at $2,001,002 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 23, 2026 disclosing 7,766 shares of Ecolab Inc.. This represents a change in shares of -3.14% during the quarter. The current value of the position is $1,923,150 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)
2026-04-24 2026-03-31 13F ECOLAB COM 278865100 7,522 -244 -3.14 2,001 -1.82 0.3478
2026-01-23 2025-12-31 13F ECOLAB COM 278865100 7,766 -131 -1.66 2,039 -5.74 0.3771
2025-11-10 2025-09-30 13F ECOLAB COM 278865100 7,897 0 0.00 2,163 1.65 0.4210
2025-07-30 2025-06-30 13F ECOLAB COM 278865100 7,897 142 1.83 2,128 8.19 0.4495
2025-05-14 2025-03-31 13F ECOLAB COM 278865100 7,755 -176 -2.22 1,966 5.81 0.4505
2025-02-06 2024-12-31 13F ECOLAB COM 278865100 7,931 -217 -2.66 1,858 -10.67 0.4113
2024-10-08 2024-09-30 13F ECOLAB COM 278865100 8,148 -112 -1.36 2,080 5.85 0.4621
2024-07-25 2024-06-30 13F ECOLAB COM 278865100 8,260 -91 -1.09 1,966 1.92 0.4638
2024-04-17 2024-03-31 13F ECOLAB COM 278865100 8,351 -281 -3.26 1,928 12.62 0.4745
2024-01-10 2023-12-31 13F ECOLAB COM 278865100 8,632 -110 -1.26 1,712 15.68 0.4647
2023-10-12 2023-09-30 13F ECOLAB COM 278865100 8,742 -124 -1.40 1,481 -10.57 0.4425
2023-07-26 2023-06-30 13F ECOLAB COM 278865100 8,866 11 0.12 1,655 12.97 0.2453
2023-04-06 2023-03-31 13F ECOLAB COM 278865100 8,855 -345 -3.75 1,466 9.41 0.4400
2023-02-10 2022-12-31 13F ECOLAB COM 278865100 9,200 -1,065 -10.38 1,339 -9.10 0.4206
2022-10-13 2022-09-30 13F ECOLAB COM 278865100 10,265 -115 -1.11 1,473 -10.67 0.5060
2022-07-18 2022-06-30 13F ECOLAB COM 278865100 10,380 -672 -6.08 1,649 -15.48 0.5283
2022-04-28 2022-03-31 13F ECOLAB COM 278865100 11,052 -1,682 -13.21 1,951 -34.68 0.5473
2022-01-20 2021-12-31 13F ECOLAB COM 278865100 12,734 -185 -1.43 2,987 10.83 0.7907
2021-11-15 2021-09-30 13F ECOLAB COM 278865100 12,919 8 0.06 2,695 1.35 0.7923
2021-08-03 2021-06-30 13F ECOLAB COM 278865100 12,911 35 0.27 2,659 -3.52 0.7813
2021-04-23 2021-03-31 13F ECOLAB COM 278865100 12,876 120 0.94 2,756 -0.14 0.8826
2021-02-02 2020-12-31 13F ECOLAB COM 278865100 12,756 -140 -1.09 2,760 7.10 0.7450
2020-10-19 2020-09-30 13F ECOLAB COM 278865100 12,896 340 2.71 2,577 3.16 1.0054
2020-07-20 2020-06-30 13F ECOLAB COM 278865100 12,556 -505 -3.87 2,498 22.75 1.0748
2020-04-16 2020-03-31 13F ECOLAB COM 278865100 13,061 -537 -3.95 2,035 -22.45 1.0523
2020-01-14 2019-12-31 13F ECOLAB COM 278865100 13,598 -250 -1.81 2,624 -4.30 0.9782
2019-10-22 2019-09-30 13F ECOLAB COM 278865100 13,848 -175 -1.25 2,742 -0.98 1.1143
2019-07-11 2019-06-30 13F ECOLAB COM 278865100 14,023 -200 -1.41 2,769 10.27 1.1324
2019-05-14 2019-03-31 13F ECOLAB COM 278865100 14,223 -10 -0.07 2,511 19.74 1.0808
2019-02-12 2018-12-31 13F Ecolab CS 278865100 14,233 583 4.27 2,097 -2.01 0.9944
2018-11-14 2018-09-30 13F Ecolab CS 278865100 13,650 -475 -3.36 2,140 7.97 0.8161
2018-08-13 2018-06-30 13F Ecolab CS 278865100 14,125 10 0.07 1,982 2.43 0.7941
2018-05-11 2018-03-31 13F Ecolab CS 278865100 14,115 148 1.06 1,935 3.26 0.7939
2018-02-02 2017-12-31 13F Ecolab CS 278865100 13,967 37 0.27 1,874 4.58 0.7423
2017-12-12 2017-09-30 13F/A-1 Ecolab CS 278865100 13,930 -225 -1.59 1,792 -4.73 0.7250
2017-11-14 2017-09-30 13F Ecolab CS 278865100 7,253 -6,902 1,792 724,939.6221
2017-08-14 2017-06-30 13F Ecolab CS 278865100 14,155 -610 -4.13 1,881 1.73 0.7624
2017-05-30 2017-03-31 13F Ecolab CS 278865100 14,765 -67 -0.45 1,849 2.78 0.8025
2017-02-10 2016-12-31 13F Ecolab CS 278865100 14,832 -425 -2.79 1,799 0.78 0.8073
2016-11-14 2016-09-30 13F Ecolab CS 278865100 15,257 -1,100 -6.72 1,786 -7.94 0.8381
2016-08-15 2016-06-30 13F Ecolab CS 278865100 16,357 410 2.57 1,940 9.06 0.9079
2016-05-13 2016-03-31 13F Ecolab CS 278865100 15,947 2,535 18.90 1,778 15.91 0.8438
2016-02-17 2015-12-31 13F Ecolab CS 278865100 13,412 4,340 47.84 1,534 57.66 0.7375
2015-11-16 2015-09-30 13F Ecolab CS 278865100 9,072 5,635 163.95 973 150.77 0.5012
2015-08-24 2015-06-30 13F Ecolab CS 278865100 3,437 3,437 389 0.1846
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.