Ecolab Inc.
US ˙ NYSE ˙ US2788651006

SecurityECL / Ecolab Inc.
InstitutionQuantbot Technologies LP
Latest Disclosed Ownership36,748 shares
Latest Disclosed Value $ 9,775,703
Quantbot Technologies LP reports 1,312.84% increase in ownership of ECL / Ecolab Inc.

On May 13, 2026 - Quantbot Technologies LP filed a 13F-HR form disclosing ownership of 36,748 shares of Ecolab Inc. (US:ECL) valued at $9,775,703 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 10, 2026 disclosing 2,601 shares of Ecolab Inc.. This represents a change in shares of 1,312.84% during the quarter. The current value of the position is $9,395,361 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 36,748 34,147 1,312.84 9,776 1,333.28 0.4000
2026-02-10 2025-12-31 13F ECOLAB COM 278865100 2,601 835 47.28 683 41.20 0.0227
2025-11-12 2025-09-30 13F ECOLAB COM 278865100 1,766 1,766 484 0.0132
2025-05-13 2025-03-31 13F ECOLAB COM 278865100 0 -14,987 -100.00 0 -100.00
2025-02-11 2024-12-31 13F ECOLAB COM 278865100 14,987 14,987 3,512 0.1283
2024-05-06 2024-03-31 13F ECOLAB COM 278865100 0 -4,211 -100.00 0 -100.00
2024-02-14 2023-12-31 13F ECOLAB COM 278865100 4,211 12 0.29 835 17.44 0.0485
2023-11-07 2023-09-30 13F ECOLAB COM 278865100 4,199 4,199 711 0.0478
2023-08-08 2023-06-30 13F ECOLAB COM 278865100 0 -2,553 -100.00 0 -100.00
2023-05-12 2023-03-31 13F ECOLAB COM 278865100 2,553 -52,416 -95.36 423 -94.73 0.0299
2023-02-13 2022-12-31 13F ECOLAB COM 278865100 54,969 54,969 8,001 0.5739
2022-11-07 2022-09-30 13F ECOLAB COM 278865100 0 -5,083 -100.00 0 -100.00
2022-08-09 2022-06-30 13F ECOLAB COM 278865100 5,083 -29,077 -85.12 781 -87.05 0.0718
2022-05-16 2022-03-31 13F ECOLAB COM 278865100 34,160 34,160 6,031 0.5259
2022-02-11 2021-12-31 13F ECOLAB COM 278865100 0 -8,206 -100.00 0 -100.00
2021-11-09 2021-09-30 13F ECOLAB COM 278865100 8,206 -58,847 -87.76 1,711 -87.61 0.1251
2021-08-12 2021-06-30 13F ECOLAB COM 278865100 67,053 61,034 1,014.02 13,810 972.20 1.0863
2021-05-14 2021-03-31 13F ECOLAB COM 278865100 6,019 -24,522 -80.29 1,288 -80.51 0.1226
2021-02-12 2020-12-31 13F ECOLAB COM 278865100 30,541 -8,898 -22.56 6,607 -16.17 0.6867
2020-11-16 2020-09-30 13F ECOLAB COM 278865100 39,439 13,033 49.36 7,881 50.03 0.9040
2020-08-13 2020-06-30 13F ECOLAB COM 278865100 26,406 19,190 265.94 5,253 367.35 0.6941
2020-05-13 2020-03-31 13F ECOLAB COM 278865100 7,216 -10,431 -59.11 1,124 -66.99 0.7327
2020-02-10 2019-12-31 13F ECOLAB COM 278865100 17,647 4,851 37.91 3,405 34.37 0.3378
2019-11-12 2019-09-30 13F ECOLAB COM 278865100 12,796 12,796 2,534 0.2498
2018-11-13 2018-09-30 13F ECOLAB COM 278865100 0 -14,077 -100.00 0 -100.00
2018-08-13 2018-06-30 13F ECOLAB COM 278865100 14,077 14,077 1,975 0.1345
2018-02-12 2017-12-31 13F ECOLAB COM 278865100 0 -37,873 -100.00 0 -100.00
2017-11-07 2017-09-30 13F ECOLAB COM 278865100 37,873 37,873 4,870 0.4669
2017-05-10 2017-03-31 13F ECOLAB COM 278865100 0 -1,013 -100.00 0 -100.00
2017-02-09 2016-12-31 13F ECOLAB COM 278865100 1,013 1,013 118 0.0131
2016-10-31 2016-09-30 13F ECOLAB COM 278865100 0 -28,433 -100.00 0 -100.00
2016-08-02 2016-06-30 13F ECOLAB COM 278865100 28,433 28,433 0.00 3,372 0.3589
2016-04-28 2016-03-31 13F ECOLAB COM 278865100 0 -13,945 -100.00 0 -100.00
2016-01-22 2015-12-31 13F ECOLAB COM 278865100 13,945 13,945 0.00 1,595 0.2737
2015-10-22 2015-09-30 13F ECOLAB COM 278865100 0 0 0 0.0000
2015-07-27 2015-06-30 13F ECOLAB COM 278865100 0 -988 -100.00 0 -100.00
2015-04-24 2015-03-31 13F ECOLAB COM 278865100 988 -1,227 -55.40 113 -50.87 0.0280
2014-01-31 2013-12-31 13F ECOLAB COM 278865100 2,215 -1,659 -42.82 230 -30.30 0.1125
2013-08-02 2013-06-30 13F ECOLAB COM 278865100 3,874 3,874 330 0.1729
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.