Ecolab Inc.
US ˙ NYSE ˙ US2788651006

SecurityECL / Ecolab Inc.
InstitutionNatixis
Latest Disclosed Ownership94,372 shares
Latest Disclosed Value $ 25,104,839
Natixis reports 173.16% increase in ownership of ECL / Ecolab Inc.

On May 14, 2026 - Natixis filed a 13F-HR form disclosing ownership of 94,372 shares of Ecolab Inc. (US:ECL) valued at $25,104,839 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 34,548 shares of Ecolab Inc.. This represents a change in shares of 173.16% during the quarter. The current value of the position is $24,128,089 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)
2026-05-14 2026-03-31 13F ECOLAB COM 278865100 94,372 59,824 173.16 25,105 176.81 0.0812
2026-02-13 2025-12-31 13F ECOLAB COM 278865100 34,548 -181,561 -84.01 9,070 -84.68 0.0322
2025-11-14 2025-09-30 13F ECOLAB COM 278865100 216,109 132,129 157.33 59,184 161.56 0.2744
2025-08-13 2025-06-30 13F ECOLAB COM 278865100 83,980 -4,832 -5.44 22,628 1.49 0.1003
2025-07-18 2025-03-31 13F/A-1 ECOLAB COM 278865100 88,812 41,638 88.26 22,296 101.71 0.1214
2025-05-14 2025-03-31 13F ECOLAB COM 278865100 88,812 41,638 22,296 0.1223
2025-02-13 2024-12-31 13F ECOLAB COM 278865100 47,174 2,567 5.75 11,054 -2.95 0.0675
2024-11-13 2024-09-30 13F ECOLAB COM 278865100 44,607 3,714 9.08 11,390 17.03 0.0642
2024-08-13 2024-06-30 13F ECOLAB COM 278865100 40,893 -55,892 -57.75 9,733 -56.45 0.0557
2024-05-13 2024-03-31 13F ECOLAB COM 278865100 96,785 -184,266 -65.56 22,348 -59.91 0.1162
2024-02-13 2023-12-31 13F ECOLAB COM 278865100 281,051 248,518 763.90 55,746 911.54 0.4049
2023-11-14 2023-09-30 13F ECOLAB COM 278865100 32,533 -38,736 -54.35 5,511 -58.58 0.0422
2023-08-11 2023-06-30 13F ECOLAB COM 278865100 71,269 -87,792 -55.19 13,305 -49.47 0.1081
2023-05-12 2023-03-31 13F ECOLAB COM 278865100 159,061 67,136 73.03 26,329 96.78 0.2375
2023-02-24 2022-12-31 13F/A-1 ECOLAB COM 278865100 91,925 60,836 195.68 13,381 196.94 0.0751
2023-02-13 2022-12-31 13F Ecolab COM 278865100 83,055 51,966 12,095 0.0000
2022-11-14 2022-09-30 13F Ecolab COM 278865100 31,089 5,295 20.53 4,506 13.82 0.0211
2022-08-12 2022-06-30 13F Ecolab COM 278865100 25,794 25,794 3,959 0.0144
2022-02-14 2021-12-31 13F ECOLAB COM 278865100 0 -5,182 -100.00 0 -100.00
2021-11-12 2021-09-30 13F ECOLAB COM 278865100 5,182 2,469 91.01 1,081 93.38 0.0037
2021-08-13 2021-06-30 13F ECOLAB COM 278865100 2,713 -1,641 -37.69 559 -40.02 0.0024
2021-05-14 2021-03-31 13F ECOLAB CO 278865100 4,354 -16,816 -79.43 932 -79.65 0.0030
2021-02-12 2020-12-31 13F ECOLAB COM 278865100 21,170 -66,608 -75.88 4,580 -73.89 0.0166
2020-11-12 2020-09-30 13F ECOLAB COM 278865100 87,778 -77,161 -46.78 17,542 -46.54 0.1291
2020-08-13 2020-06-30 13F ECOLAB COM 278865100 164,939 -137,204 -45.41 32,815 -30.30 0.2548
2020-05-14 2020-03-31 13F ECOLAB COM 278865100 302,143 122,966 68.63 47,083 37.13 0.3700
2020-02-14 2019-12-31 13F ECOLAB COM 278865100 179,177 167,954 1,496.52 34,334 1,444.49 0.2127
2019-11-13 2019-09-30 13F ECOLAB COM 278865100 11,223 11,223 2,223 0.0143
2019-08-13 2019-06-30 13F ECOLAB COM 278865100 0 -5,784 -100.00 0 -100.00
2019-05-15 2019-03-31 13F ECOLAB COM 278865100 5,784 -20,495 -77.99 1,018 -73.71 0.0064
2019-02-14 2018-12-31 13F/A-1 ECOLAB COM 278865100 26,279 -7,633 -22.51 3,872 -27.18 0.0319
2019-02-14 2018-12-31 13F ECOLAB COM 278865100 26,279 -7,633 3,872
2018-11-14 2018-09-30 13F ECOLAB COM 278865100 33,912 -4,560 -11.85 5,317 -1.52 0.0307
2018-08-14 2018-06-30 13F ECOLAB COM 278865100 38,472 10,440 37.24 5,399 40.53 0.0286
2018-05-15 2018-03-31 13F ECOLAB COM 278865100 28,032 28,032 3,842 0.0236
2018-02-14 2017-12-31 13F ECOLAB COM 278865100 0 -14,005 -100.00 0 -100.00
2017-11-14 2017-09-30 13F ECOLAB COM 278865100 14,005 14,005 1,801 0.0166
2017-08-14 2017-06-30 13F ECOLAB COM 278865100 0 -8,287 -100.00 0 -100.00
2017-05-15 2017-03-31 13F ECOLAB COM 278865100 8,287 -51,619 -86.17 1,039 -85.20 0.0129
2017-02-14 2016-12-31 13F ECOLAB COM 278865100 59,906 59,906 0.00 7,022 0.0723
2016-05-16 2016-03-31 13F ECOLAB COM 278865100 0 0 0 0.0000
2016-02-16 2015-12-31 13F ECOLAB COM 278865100 0 0 0 0.0000
2015-11-16 2015-09-30 13F ECOLAB COM 278865100 0 -9,281 -100.00 0 -100.00
2015-08-14 2015-06-30 13F ECOLAB COM 278865100 9,281 -3,243 -25.89 1,049 -26.75 0.0142
2015-05-22 2015-03-31 13F ECOLAB COM 278865100 12,524 2,803 28.83 1,432 40.94 0.0197
2015-02-17 2014-12-31 13F ECOLAB COM 278865100 9,721 -338 -3.36 1,016 -12.03 0.0140
2014-11-14 2014-09-30 13F ECOLAB COM 278865100 10,059 -52,351 -83.88 1,155 -83.38 0.0178
2014-08-14 2014-06-30 13F ECOLAB COM 278865100 62,410 -2,845 -4.36 6,949 -1.39 0.0835
2014-05-14 2014-03-31 13F ECOLAB COM 278865100 65,255 1,169 1.82 7,047 5.46 0.0917
2014-02-14 2013-12-31 13F ECOLAB COM 278865100 64,086 64,086 25.66 6,682 53.79 0.0573
2013-11-14 2013-09-30 13F ECOLAB COM 278865100 0 -51,000 -100.00 0 -100.00
2013-08-14 2013-06-30 13F ECOLAB COM 278865100 51,000 51,000 4,345 0.0621
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.