Ecolab Inc.
US ˙ NYSE ˙ US2788651006

SecurityECL / Ecolab Inc.
InstitutionRockland Trust Co
Latest Disclosed Ownership56,483 shares
Latest Disclosed Value $ 15,025,608
Rockland Trust Co reports 0.94% increase in ownership of ECL / Ecolab Inc.

On April 16, 2026 - Rockland Trust Co filed a 13F-HR form disclosing ownership of 56,483 shares of Ecolab Inc. (US:ECL) valued at $15,025,608 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 15, 2026 disclosing 55,955 shares of Ecolab Inc.. This represents a change in shares of 0.94% during the quarter. The current value of the position is $14,441,009 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)
2026-04-16 2026-03-31 13F ECOLAB COM 278865100 56,483 528 0.94 15,026 2.29 0.5609
2026-01-15 2025-12-31 13F ECOLAB COM 278865100 55,955 968 1.76 14,689 -2.45 0.5784
2025-11-06 2025-09-30 13F ECOLAB COM 278865100 54,987 2,610 4.98 15,059 6.70 0.6171
2025-07-10 2025-06-30 13F ECOLAB COM 278865100 52,377 -766 -1.44 14,112 4.75 0.6872
2025-04-16 2025-03-31 13F ECOLAB COM 278865100 53,143 -530 -0.99 13,473 7.12 0.6772
2025-01-14 2024-12-31 13F ECOLAB COM 278865100 53,673 384 0.72 12,577 -7.57 0.6395
2024-10-03 2024-09-30 13F ECOLAB COM 278865100 53,289 -1,200 -2.20 13,606 4.92 0.6696
2024-07-23 2024-06-30 13F ECOLAB COM 278865100 54,489 -1,413 -2.53 12,968 0.47 0.6837
2024-04-11 2024-03-31 13F ECOLAB COM 278865100 55,902 -1,864 -3.23 12,908 12.66 0.6801
2024-01-11 2023-12-31 13F ECOLAB COM 278865100 57,766 -30 -0.05 11,458 17.03 0.6272
2023-10-26 2023-09-30 13F ECOLAB COM 278865100 57,796 2,198 3.95 9,791 -5.67 0.5893
2023-07-27 2023-06-30 13F ECOLAB COM 278865100 55,598 -1,482 -2.60 10,380 9.85 0.6202
2023-04-24 2023-03-31 13F ECOLAB COM 278865100 57,080 388 0.68 9,448 118,000.00 0.5937
2023-01-24 2022-12-31 13F ECOLAB COM 278865100 56,692 2,801 5.20 8 -99.90 0.5242
2022-10-19 2022-09-30 13F ECOLAB COM 278865100 53,891 953 1.80 7,783 -4.37 0.5553
2022-07-13 2022-06-30 13F ECOLAB COM 278865100 52,938 1,214 2.35 8,139 -10.87 0.5628
2022-04-18 2022-03-31 13F ECOLAB COM 278865100 51,724 -617 -1.18 9,132 -25.63 0.5811
2022-01-27 2021-12-31 13F ECOLAB COM 278865100 52,341 -5,199 -9.04 12,279 2.29 0.7822
2021-10-25 2021-09-30 13F ECOLAB COM 278865100 57,540 -11,620 -16.80 12,004 -15.73 0.8372
2021-07-21 2021-06-30 13F ECOLAB COM 278865100 69,160 -2,296 -3.21 14,245 -6.88 0.9846
2021-04-22 2021-03-31 13F ECOLAB COM 278865100 71,456 -649 -0.90 15,297 -1.95 1.1016
2021-01-04 2020-12-31 13F ECOLAB COM 278865100 72,105 -361 -0.50 15,601 7.73 1.2118
2020-10-08 2020-09-30 13F ECOLAB COM 278865100 72,466 -1,262 -1.71 14,482 -1.27 1.2442
2020-07-09 2020-06-30 13F ECOLAB COM 278865100 73,728 -1,894 -2.50 14,668 24.47 1.3181
2020-04-16 2020-03-31 13F ECOLAB COM 278865100 75,622 3,013 4.15 11,784 -15.91 1.1997
2020-01-06 2019-12-31 13F ECOLAB COM 278865100 72,609 1,759 2.48 14,013 2.57 1.1540
2019-10-11 2019-09-30 13F ECOLAB COM 278865100 70,850 -570 -0.80 13,662 -3.11 1.2421
2019-07-05 2019-06-30 13F ECOLAB COMMON STOCK 278865100 71,420 -1,676 -2.29 14,101 9.28 1.3976
2019-04-08 2019-03-31 13F ECOLAB COMMON STOCK 278865100 73,096 -1,068 -1.44 12,904 18.08 1.3680
2019-01-16 2018-12-31 13F ECOLAB COMMON STOCK 278865100 74,164 525 0.71 10,928 -5.34 1.3405
2018-10-05 2018-09-30 13F ECOLAB COMMON STOCK 278865100 73,639 -941 -1.26 11,545 10.31 1.4106
2018-07-06 2018-06-30 13F ECOLAB COMMON STOCK 278865100 74,580 -1,710 -2.24 10,466 0.09 1.3519
2018-04-10 2018-03-31 13F ECOLAB COMMON STOCK 278865100 76,290 2,299 3.11 10,457 5.33 1.3821
2018-01-11 2017-12-31 13F ECOLAB COMMON STOCK 278865100 73,991 1,666 2.30 9,928 6.73 1.2779
2017-11-01 2017-09-30 13F ECOLAB COMMON STOCK 278865100 72,325 644 0.90 9,302 -2.25 1.3909
2017-08-01 2017-06-30 13F ECOLAB COMMON STOCK 278865100 71,681 -871 -1.20 9,516 4.64 1.4899
2017-04-20 2017-03-31 13F ECOLAB COMMON STOCK 278865100 72,552 1,147 1.61 9,094 8.65 1.4351
2017-01-30 2016-12-31 13F ECOLAB COMMON STOCK 278865100 71,405 538 0.76 8,370 -2.97 1.3407
2016-10-27 2016-09-30 13F ECOLAB COMMON STOCK 278865100 70,867 2,236 3.26 8,626 5.97 1.4944
2016-07-20 2016-06-30 13F/A-1 ECOLAB COMMON STOCK 278865100 68,631 872 1.29 8,140 7.73 1.4081
2016-07-20 2016-06-30 13F ECOLAB COMMON STOCK 278865100 67,759 7,556
2016-05-04 2016-03-31 13F ECOLAB COMMON STOCK 278865100 67,759 2,920 4.50 7,556 1.89 1.3563
2016-01-28 2015-12-31 13F ECOLAB COMMON STOCK 278865100 64,839 554 0.86 7,416 5.15 1.3064
2015-10-28 2015-09-30 13F ECOLAB COMMON STOCK 278865100 64,285 3,915 6.49 7,053 3.33 1.3857
2015-07-22 2015-06-30 13F ECOLAB COMMON STOCK 278865100 60,370 1,417 2.40 6,826 1.23 1.3551
2015-04-24 2015-03-31 13F ECOLAB COMMON STOCK 278865100 58,953 58,953 0.00 6,743 1.4259
2015-02-04 2014-12-31 13F ECOLAB COMMON STOCK 278865100 0 -3,220 -100.00 0 -100.00
2014-11-05 2014-09-30 13F ECOLAB COMMON STOCK 278865100 3,220 -20 -0.62 370 2.49 0.0815
2014-08-04 2014-06-30 13F ECOLAB COMMON STOCK 278865100 3,240 414 14.65 361 18.36 0.0820
2014-05-02 2014-03-31 13F ECOLAB COMMON STOCK 278865100 2,826 468 19.85 305 23.98 0.0717
2014-02-04 2013-12-31 13F ECOLAB COMMON STOCK 278865100 2,358 275 13.20 246 19.42 0.0592
2013-11-12 2013-09-30 13F/A-1 ECOLAB COMMON STOCK 278865100 2,083 -110,844 -98.16 206 -97.86 0.0544
2013-10-21 2013-09-30 13F ECOLAB COMMON STOCK 278865100 2,083 206
2013-08-12 2013-06-30 13F ECOLAB COMMON STOCK 278865100 112,927 112,927 9,620 2.6640
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.