Ecolab Inc.
US ˙ NYSE ˙ US2788651006

SecurityECL / Ecolab Inc.
InstitutionNatixis Advisors, L.p.
Latest Disclosed Ownership404,839 shares
Latest Disclosed Value $ 107,695
Natixis Advisors, L.p. reports 1.77% increase in ownership of ECL / Ecolab Inc.

On May 13, 2026 - Natixis Advisors, L.p. filed a 13F-HR form disclosing ownership of 404,839 shares of Ecolab Inc. (US:ECL) valued at $107,695,271 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 10, 2026 disclosing 397,788 shares of Ecolab Inc.. This represents a change in shares of 1.77% during the quarter. The current value of the position is $103,505,187 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)
2026-05-13 2026-03-31 13F ECOLAB COM 278865100 404,839 7,051 1.77 108 2.88 0.1498
2026-02-10 2025-12-31 13F ECOLAB COM 278865100 397,788 -10,187 -2.50 104 -6.31 0.1480
2025-11-13 2025-09-30 13F ECOLAB INC COM 278865100 407,975 -670 -0.16 112 0.91 0.1630
2025-08-13 2025-06-30 13F ECOLAB COM 278865100 408,645 10,975 2.76 110 10.00 0.1747
2025-05-08 2025-03-31 13F ECOLAB COM 278865100 397,670 15,785 4.13 101 12.36 0.1863
2025-02-10 2024-12-31 13F ECOLAB COM 278865100 381,885 7,276 1.94 89 -6.32 0.1672
2024-11-06 2024-09-30 13F ECOLAB COM 278865100 374,609 15,503 4.32 96 11.76 0.1865
2024-08-01 2024-06-30 13F ECOLAB COM 278865100 359,106 206,973 136.05 85 142.86 0.1858
2024-04-25 2024-03-31 13F ECOLAB COM 278865100 152,133 6,035 4.13 35 25.00 0.0808
2024-02-06 2023-12-31 13F ECOLAB COM 278865100 146,098 17,476 13.59 29 33.33 0.0763
2023-11-13 2023-09-30 13F ECOLAB COM 278865100 128,622 2,760 2.19 22 -8.70 0.0666
2023-08-15 2023-06-30 13F ECOLAB COM 278865100 125,862 6,464 5.41 23 21.05 0.0726
2023-05-11 2023-03-31 13F ECOLAB COM 278865100 119,398 22,521 23.25 20 35.71 0.0680
2023-01-27 2022-12-31 13F ECOLAB COM 278865100 96,877 -24,433 -20.14 14 -99.92 0.0533
2022-11-14 2022-09-30 13F ECOLAB COM 278865100 121,310 11,945 10.92 17,520 4.19 0.0741
2022-08-12 2022-06-30 13F ECOLAB COM 278865100 109,365 31,163 39.85 16,816 21.79 0.0739
2022-05-12 2022-03-31 13F ECOLAB COM 278865100 78,202 -14,120 -15.29 13,807 -36.25 0.0527
2022-02-08 2021-12-31 13F ECOLAB COM 278865100 92,322 11,847 14.72 21,658 29.00 0.0827
2021-11-15 2021-09-30 13F ECOLAB COM 278865100 80,475 3,621 4.71 16,789 6.06 0.0690
2021-08-12 2021-06-30 13F ECOLAB COM 278865100 76,854 -15,418 -16.71 15,830 -19.86 0.0739
2021-05-05 2021-03-31 13F ECOLAB COM 278865100 92,272 8,078 9.59 19,752 8.43 0.1031
2021-02-12 2020-12-31 13F ECOLAB COM 278865100 84,194 3,222 3.98 18,216 12.58 0.1049
2020-11-12 2020-09-30 13F ECOLAB COM 278865100 80,972 1,833 2.32 16,181 2.77 0.1018
2020-08-11 2020-06-30 13F ECOLAB COM 278865100 79,139 4,346 5.81 15,745 35.09 0.1045
2020-04-27 2020-03-31 13F ECOLAB COM 278865100 74,793 7,592 11.30 11,655 -10.13 0.0950
2020-02-10 2019-12-31 13F ECOLAB COM 278865100 67,201 18,705 38.57 12,969 35.04 0.0915
2019-11-12 2019-09-30 13F ECOLAB COM 278865100 48,496 -83,163 -63.17 9,604 -63.05 0.0762
2019-08-12 2019-06-30 13F ECOLAB COM 278865100 131,659 -121,715 -48.04 25,995 -41.89 0.2123
2019-05-15 2019-03-31 13F/A-1 ECOLAB COM 278865100 253,374 -16,941 -6.27 44,731 12.30 0.3916
2019-05-15 2019-03-31 13F ECOLAB COM 278865100 253,374 -16,941 44,731
2019-02-13 2018-12-31 13F/A-1 ECOLAB COM 278865100 270,315 15,907 6.25 39,830 -0.14 0.3933
2019-02-13 2018-12-31 13F ECOLAB COM 278865100 270,315 15,907 39,830
2018-11-13 2018-09-30 13F ECOLAB COM 278865100 254,408 127,750 100.86 39,886 124.42 0.3511
2018-08-14 2018-06-30 13F/A-1 ECOLAB COM 278865100 126,658 12,588 11.04 17,773 13.67 0.1698
2018-08-14 2018-06-30 13F ECOLAB COM 278865100 126,658 17,773
2018-05-10 2018-03-31 13F ECOLAB COM 278865100 114,070 9,772 9.37 15,636 11.73 0.1543
2018-02-14 2017-12-31 13F ECOLAB COM 278865100 104,298 2,513 2.47 13,995 6.91 0.1425
2017-11-14 2017-09-30 13F ECOLAB COM 278865100 101,785 31,544 44.91 13,090 40.39 0.1383
2017-07-27 2017-06-30 13F ECOLAB COM 278865100 70,241 762 1.10 9,324 7.07 0.1009
2017-05-12 2017-03-31 13F ECOLAB COM 278865100 69,479 2,602 3.89 8,708 11.09 0.0965
2017-02-07 2016-12-31 13F ECOLAB COM 278865100 66,877 -3,130 -4.47 7,839 -8.00 0.0942
2016-11-04 2016-09-30 13F ECOLAB COM 278865100 70,007 2,941 4.39 8,521 7.13 0.1104
2016-08-01 2016-06-30 13F ECOLAB COM 278865100 67,066 3,952 6.26 7,954 13.02 0.1100
2016-05-06 2016-03-31 13F ECOLAB COM 278865100 63,114 3,716 6.26 7,038 3.59 0.1053
2016-02-12 2015-12-31 13F ECOLAB COM 278865100 59,398 -1,767 -2.89 6,794 1.24 0.1114
2015-11-12 2015-09-30 13F ECOLAB COM 278865100 61,165 1,736 2.92 6,711 -0.13 0.1164
2015-08-14 2015-06-30 13F ECOLAB COM 278865100 59,429 3,779 6.79 6,720 5.58 0.1141
2015-05-15 2015-03-31 13F ECOLAB COM 278865100 55,650 3,321 6.35 6,365 16.38 0.1117
2015-02-05 2014-12-31 13F ECOLAB COM 278865100 52,329 -929 -1.74 5,469 -10.58 0.1024
2014-11-03 2014-09-30 13F ECOLAB COM 278865100 53,258 3,341 6.69 6,116 10.04 0.1227
2014-08-13 2014-06-30 13F ECOLAB COM 278865100 49,917 25,125 101.34 5,558 107.62 0.0796
2014-05-13 2014-03-31 13F ECOLAB COM 278865100 24,792 8,061 48.18 2,677 53.41 0.0412
2014-02-12 2013-12-31 13F ECOLAB COM 278865100 16,731 2,040 13.89 1,745 20.26 0.0286
2013-10-30 2013-09-30 13F ECOLAB COM 278865100 14,691 1,140 8.41 1,451 25.63 0.0267
2013-07-19 2013-06-30 13F ECOLAB COM 278865100 13,551 13,551 1,155 0.0230
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.