Ecolab Inc.
US ˙ NYSE ˙ US2788651006

SecurityECL / Ecolab Inc.
InstitutionEastern Bank
Latest Disclosed Ownership130,047 shares
Latest Disclosed Value $ 34,595,170
Eastern Bank reports 30.20% decrease in ownership of ECL / Ecolab Inc.

On April 7, 2026 - Eastern Bank filed a 13F-HR form disclosing ownership of 130,047 shares of Ecolab Inc. (US:ECL) valued at $34,595,103 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 14, 2026 disclosing 186,314 shares of Ecolab Inc.. This represents a change in shares of -30.20% during the quarter. The current value of the position is $33,249,116 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)
2026-04-07 2026-03-31 13F ECOLAB COM 278865100 130,047 -56,267 -30.20 34,595 -29.27 0.5417
2026-01-14 2025-12-31 13F ECOLAB COM 278865100 186,314 1,561 0.84 48,911 -3.33 0.7679
2025-10-27 2025-09-30 13F ECOLAB COM 278865100 184,753 -7,019 -3.66 50,596 -2.08 0.8989
2025-07-24 2025-06-30 13F ECOLAB COM 278865100 191,772 474 0.25 51,671 6.54 0.9837
2025-05-08 2025-03-31 13F ECOLAB COM 278865100 191,298 25,838 15.62 48,498 25.09 0.9497
2025-01-13 2024-12-31 13F ECOLAB COM 278865100 165,460 2,853 1.75 38,771 -6.62 0.7205
2024-10-21 2024-09-30 13F ECOLAB COM 278865100 162,607 143,497 750.90 41,519 812.88 0.7438
2024-07-23 2024-06-30 13F ECOLAB COMMON STOCKS 278865100 19,110 265 1.41 4,548 4.53 0.1837
2024-05-09 2024-03-31 13F ECOLAB COMMON STOCKS 278865100 18,845 -2 -0.01 4,351 16.40 0.1811
2024-01-25 2023-12-31 13F ECOLAB COMMON STOCKS 278865100 18,847 0 0.00 3,738 17.11 0.1697
2023-10-17 2023-09-30 13F ECOLAB COMMON STOCKS 278865100 18,847 0 0.00 3,193 -9.27 0.1586
2023-07-19 2023-06-30 13F ECOLAB COMMON STOCKS 278865100 18,847 -40 -0.21 3,519 12.54 0.1673
2023-04-19 2023-03-31 13F ECOLAB COMMON STOCKS 278865100 18,887 0 0.00 3,126 13.71 0.1571
2023-01-24 2022-12-31 13F ECOLAB COMMON STOCKS 278865100 18,887 0 0.00 2,749 0.81 0.1467
2022-10-19 2022-09-30 13F ECOLAB COMMON STOCKS 278865100 18,887 -22 -0.12 2,727 -6.19 0.1557
2022-07-20 2022-06-30 13F ECOLAB COMMON STOCKS 278865100 18,909 0 0.00 2,907 -12.94 0.1546
2022-04-21 2022-03-31 13F ECOLAB COMMON STOCKS 278865100 18,909 0 0.00 3,339 -24.73 0.1548
2022-01-26 2021-12-31 13F ECOLAB COMMON STOCKS 278865100 18,909 0 0.00 4,436 12.45 0.1935
2021-10-19 2021-09-30 13F ECOLAB COMMON STOCKS 278865100 18,909 0 0.00 3,945 1.28 0.1905
2021-07-20 2021-06-30 13F ECOLAB COMMON STOCKS 278865100 18,909 0 0.00 3,895 -3.78 0.1910
2021-04-27 2021-03-31 13F ECOLAB COMMON STOCKS 278865100 18,909 0 0.00 4,048 -1.08 0.2187
2021-01-20 2020-12-31 13F ECOLAB COMMON STOCKS 278865100 18,909 -100 -0.53 4,092 7.71 0.2291
2020-10-30 2020-09-30 13F ECOLAB COMMON STOCKS 278865100 19,009 -25 -0.13 3,799 0.34 0.2326
2020-09-01 2020-06-30 13F/A-1 ECOLAB COMMON STOCKS 278865100 19,034 -8 -0.04 3,786 27.60 0.2463
2020-07-21 2020-06-30 13F ECOLAB COMMON STOCKS 278865100 19,034 -8 3,786 246,261.8415
2020-04-27 2020-03-31 13F ECOLAB COMMON STOCKS 278865100 19,042 -65 -0.34 2,967 -19.53 0.2209
2020-02-04 2019-12-31 13F ECOLAB COMMON STOCKS 278865100 19,107 30 0.16 3,687 -2.41 0.2141
2019-11-04 2019-09-30 13F ECOLAB COMMON STOCKS 278865100 19,077 -274 -1.42 3,778 -1.13 0.2356
2019-07-24 2019-06-30 13F ECOLAB COMMON STOCKS 278865100 19,351 -73 -0.38 3,821 11.43 0.2431
2019-04-18 2019-03-31 13F ECOLAB COMMON STOCKS 278865100 19,424 0 0.00 3,429 19.77 0.2298
2019-01-18 2018-12-31 13F ECOLAB COMMON STOCKS 278865100 19,424 0 0.00 2,863 -5.98 0.2138
2018-10-16 2018-09-30 13F ECOLAB COMMON STOCKS 278865100 19,424 0 0.00 3,045 11.70 0.1987
2018-07-18 2018-06-30 13F ECOLAB COMMON STOCKS 278865100 19,424 -13 -0.07 2,726 2.33 0.1862
2018-04-09 2018-03-31 13F ECOLAB COMMON STOCKS 278865100 19,437 0 0.00 2,664 2.15 0.1863
2018-01-22 2017-12-31 13F ECOLAB COMMON STOCKS 278865100 19,437 0 0.00 2,608 4.36 0.1748
2017-10-24 2017-09-30 13F ECOLAB COMMON STOCKS 278865100 19,437 -42 -0.22 2,499 -3.36 0.1770
2017-07-26 2017-06-30 13F ECOLAB COMMON STOCKS 278865100 19,479 -8 -0.04 2,586 5.85 0.1903
2017-04-17 2017-03-31 13F ECOLAB COMMON STOCKS 278865100 19,487 -43 -0.22 2,443 6.68 0.1844
2017-01-18 2016-12-31 13F ECOLAB COMMON STOCKS 278865100 19,530 -315 -1.59 2,290 -5.18 0.1782
2016-10-17 2016-09-30 13F ECOLAB COMMON STOCKS 278865100 19,845 0 0.00 2,415 2.59 0.1941
2016-07-15 2016-06-30 13F ECOLAB COMMON STOCKS 278865100 19,845 0 0.00 2,354 6.37 0.1902
2016-04-14 2016-03-31 13F ECOLAB COMMON STOCKS 278865100 19,845 0 0.00 2,213 -2.51 0.1805
2016-01-20 2015-12-31 13F ECOLAB COMMON STOCKS 278865100 19,845 0 0.00 2,270 4.27 0.1890
2015-10-16 2015-09-30 13F ECOLAB COMMON STOCKS 278865100 19,845 0 0.00 2,177 -2.99 0.1898
2015-07-16 2015-06-30 13F ECOLAB COMMON STOCKS 278865100 19,845 -200 -1.00 2,244 -2.14 0.1812
2015-04-17 2015-03-31 13F ECOLAB COMMON STOCKS 278865100 20,045 -25 -0.12 2,293 9.29 0.1837
2015-01-12 2014-12-31 13F ECOLAB COMMON STOCKS 278865100 20,070 0 0.00 2,098 -8.94 0.1665
2014-10-15 2014-09-30 13F ECOLAB COMMON STOCKS 278865100 20,070 -100 -0.50 2,304 2.63 0.1862
2014-07-16 2014-06-30 13F ECOLAB COMMON STOCKS 278865100 20,170 200 1.00 2,245 4.13 0.1818
2014-04-17 2014-03-31 13F ECOLAB COMMON STOCKS 278865100 19,970 0 0.00 2,156 3.55 0.1816
2014-01-21 2013-12-31 13F ECOLAB COMMON STOCKS 278865100 19,970 0 0.00 2,082 5.58 0.1774
2013-10-18 2013-09-30 13F ECOLAB COMMON STOCKS 278865100 19,970 0 0.00 1,972 15.93 0.1809
2013-08-09 2013-06-30 13F ECOLAB COMMON STOCKS 278865100 19,970 19,970 1,701 0.1582
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.