Ecolab Inc.
US ˙ NYSE ˙ US2788651006

SecurityECL / Ecolab Inc.
InstitutionPrudential Financial Inc
Latest Disclosed Ownership123,869 shares
Latest Disclosed Value $ 32,951,631
Prudential Financial Inc reports 43.83% decrease in ownership of ECL / Ecolab Inc.

On May 13, 2026 - Prudential Financial Inc filed a 13F-HR form disclosing ownership of 123,869 shares of Ecolab Inc. (US:ECL) valued at $32,951,631 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 220,542 shares of Ecolab Inc.. This represents a change in shares of -43.83% during the quarter. The current value of the position is $31,669,587 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 123,869 -96,673 -43.83 32,952 -43.09 0.0228
2026-02-13 2025-12-31 13F ECOLAB COM 278865100 220,542 3,124 1.44 57,897 -2.76 0.0699
2025-11-13 2025-09-30 13F ECOLAB COM 278865100 217,418 -192,843 -47.00 59,542 -46.14 0.0708
2025-08-12 2025-06-30 13F ECOLAB COM 278865100 410,261 -2,897 -0.70 110,541 5.53 0.1428
2025-05-13 2025-03-31 13F ECOLAB COM 278865100 413,158 177,688 75.46 104,744 89.84 0.1492
2025-02-11 2024-12-31 13F ECOLAB COM 278865100 235,470 15,355 6.98 55,175 -1.83 0.0756
2024-11-14 2024-09-30 13F ECOLAB COM 278865100 220,115 -70,517 -24.26 56,202 -18.75 0.0792
2024-08-13 2024-06-30 13F ECOLAB COM 278865100 290,632 -151,488 -34.26 69,170 -32.24 0.1038
2024-05-14 2024-03-31 13F ECOLAB COM 278865100 442,120 6,333 1.45 102,086 18.52 0.1437
2024-02-13 2023-12-31 13F ECOLAB COM 278865100 435,787 -88,669 -16.91 86,135 -3.05 0.1301
2023-11-13 2023-09-30 13F ECOLAB COM 278865100 524,456 168,082 47.16 88,842 33.53 0.1394
2023-08-11 2023-06-30 13F ECOLAB COM 278865100 356,374 123,031 52.73 66,532 77.86 0.0969
2023-05-12 2023-03-31 13F ECOLAB COM 278865100 233,343 -1,681 -0.72 37,406 9.34 0.0586
2023-02-14 2022-12-31 13F ECOLAB COM 278865100 235,024 7,790 3.43 34,210 3.54 0.0577
2022-11-04 2022-09-30 13F ECOLAB COM 278865100 227,234 -2,215 -0.97 33,041 -6.23 0.0560
2022-08-15 2022-06-30 13F ECOLAB COM 278865100 229,449 -1,210 -0.52 35,237 -13.48 0.0559
2022-05-13 2022-03-31 13F ECOLAB COM 278865100 230,659 -1,032 -0.45 40,726 -23.68 0.0541
2022-02-14 2021-12-31 13F ECOLAB COM 278865100 231,691 4,127 1.81 53,361 9.15 0.0663
2021-11-15 2021-09-30 13F ECOLAB COM 278865100 227,564 247 0.11 48,890 4.42 0.0682
2021-08-16 2021-06-30 13F ECOLAB COM 278865100 227,317 -16,818 -6.89 46,820 -10.41 0.0644
2021-05-12 2021-03-31 13F ECOLAB COM 278865100 244,135 31,415 14.77 52,261 13.55 0.0783
2021-08-16 2020-12-31 13F/A-1 ECOLAB COM 0216 278865100 212,720 208,422 4,849.28 46,024 5,257.86 0.0774
2021-02-16 2020-12-31 13F ECOLAB COM 278865100 212,720 208,422 46,024 0.0774
2021-08-05 2020-09-30 13F/A-1 ECOLAB COM 278865100 4,298 483 12.66 859 13.18 0.1241
2020-11-16 2020-09-30 13F ECOLAB COM 278865100 215,902 212,087 43,145 0.0814
2021-08-05 2020-06-30 13F/A-1 ECOLAB COM 0198 278865100 3,815 661 20.96 759 54.58 0.1405
2020-08-12 2020-06-30 13F ECOLAB COM 278865100 216,575 213,421 43,087 0.0830
2021-08-05 2020-03-31 13F/A-1 ECOLAB COM 0155 278865100 3,154 227 7.76 491 -13.10 0.1275
2020-05-12 2020-03-31 13F ECOLAB COM 278865100 265,903 262,976 41,436 0.0918
2021-08-05 2019-12-31 13F/A-1 ECOLAB COM 0192 278865100 2,927 317 12.15 565 9.28 0.1473
2020-02-11 2019-12-31 13F ECOLAB COM 278865100 252,458 249,848 48,722 0.0722
2021-08-05 2019-09-30 13F/A-1 ECOLAB COM 0198 278865100 2,610 228 9.57 517 10.00 0.1688
2019-11-13 2019-09-30 13F ECOLAB COM 278865100 245,664 243,282 48,651 0.0772
2021-08-05 2019-06-30 13F/A-1 ECOLAB COM 278865100 2,382 300 14.41 470 27.72 0.1632
2019-08-08 2019-06-30 13F ECOLAB COM 278865100 247,461 245,379 48,858 0.0761
2021-08-05 2019-03-31 13F/A-1 ECOLAB COM 278865100 2,082 426 25.72 368 50.82 0.1562
2019-05-15 2019-03-31 13F ECOLAB COM 278865100 262,120 260,464 46,275 0.0771
2021-08-05 2018-12-31 13F/A-1 ECOLAB COM 278865100 1,656 1,239 297.12 244 275.38 0.1976
2019-02-07 2018-12-31 13F ECOLAB COM 278865100 292,991 -6,276 43,172 0.0758
2021-09-01 2018-09-30 13F/A-1 ECOLAB COM 0156 278865100 417 382 1,091.43 65 1,200.00 0.1045
2018-11-07 2018-09-30 13F ECOLAB COM 278865100 299,267 299,232 46,919 0.0691
2021-09-01 2018-06-30 13F/A-1 ECOLAB COM 278865100 35 14 66.67 5 66.67 0.0179
2018-08-13 2018-06-30 13F ECOLAB COM 278865100 303,227 303,206 42,552 0.0636
2021-09-01 2018-03-31 13F/A-1 ECOLAB COM 278865100 21 -367,030 -99.99 3 -99.99 0.0391
2018-05-04 2018-03-31 13F ECOLAB COM 278865100 298,436 -68,615 40,906 0.0623
2018-02-13 2017-12-31 13F ECOLAB COM 278865100 367,051 649 0.18 49,251 4.52 0.0671
2017-11-02 2017-09-30 13F ECOLAB COM 278865100 366,402 680 0.19 47,123 -2.94 0.0779
2017-08-07 2017-06-30 13F ECOLAB COM 278865100 365,722 -5,366 -1.45 48,550 4.38 0.0722
2017-05-10 2017-03-31 13F ECOLAB COM 278865100 371,088 -50,020 -11.88 46,512 -5.77 0.0725
2017-02-07 2016-12-31 13F ECOLAB COM 278865100 421,108 42,460 11.21 49,362 7.10 0.0794
2016-11-04 2016-09-30 13F ECOLAB COM 278865100 378,648 -2,228 -0.58 46,089 2.03 0.0761
2016-08-09 2016-06-30 13F ECOLAB COM 278865100 380,876 37,766 11.01 45,172 18.05 0.0760
2016-05-09 2016-03-31 13F ECOLAB COM 278865100 343,110 1,250 0.37 38,264 -2.15 0.0684
2016-02-12 2015-12-31 13F ECOLAB COM 278865100 341,860 -2,570 -0.75 39,103 3.47 0.0708
2015-11-10 2015-09-30 13F ECOLAB COM 278865100 344,430 -6,220 -1.77 37,791 -4.68 0.0745
2015-08-06 2015-06-30 13F ECOLAB COM 278865100 350,650 -4,190 -1.18 39,648 -2.31 0.0704
2015-05-01 2015-03-31 13F ECOLAB COM 278865100 354,840 -8,990 -2.47 40,586 6.73 0.0703
2015-02-06 2014-12-31 13F ECOLAB COM 278865100 363,830 -10,550 -2.82 38,027 -11.54 0.0689
2014-11-12 2014-09-30 13F ECOLAB COM 278865100 374,380 -37,565 -9.12 42,990 -6.27 0.0809
2014-08-13 2014-06-30 13F ECOLAB COM 278865100 411,945 15,205 3.83 45,866 7.05 0.0809
2014-05-14 2014-03-31 13F ECOLAB COM 278865100 396,740 24,930 6.71 42,844 10.51 0.0797
2014-02-11 2013-12-31 13F ECOLAB COM 278865100 371,810 -5,420 -1.44 38,769 4.06 0.0770
2013-11-07 2013-09-30 13F ECOLAB COM 278865100 377,230 -1,502 -0.40 37,256 15.47 0.0792
2013-08-07 2013-06-30 13F ECOLAB COM 278865100 378,732 378,732 32,264 0.0715
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.