Ecolab Inc.
MX ˙ BMV ˙ US2788651006
SecurityMX:ECL / Ecolab Inc.
InstitutionTrillium Asset Management, Llc
Latest Disclosed Ownership198,853 shares
Latest Disclosed Value $ 44,594,418
Trillium Asset Management, Llc reports 9.58% increase in ownership of ECL / Ecolab Inc.

On May 11, 2026 - Trillium Asset Management, Llc filed a 13F-HR form disclosing ownership of 198,853 shares of Ecolab Inc. (MX:ECL) valued at $44,594,418 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 181,469 shares of Ecolab Inc.. This represents a change in shares of 9.58% during the quarter.

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)
2026-05-11 2026-03-31 13F ECOLAB COM 278865100 198,853 17,384 9.58 44,594 -7.49 1.4796
2026-02-13 2025-12-31 13F ECOLAB COM 278865100 181,469 -28,140 -13.42 48,203 -16.03 1.4752
2025-11-14 2025-09-30 13F ECOLAB COM 278865100 209,609 -4,976 -2.32 57,404 -0.72 1.5162
2025-08-06 2025-06-30 13F ECOLAB COM 278865100 214,585 2,092 0.98 57,819 7.33 1.5554
2025-05-13 2025-03-31 13F ECOLAB COM 278865100 212,493 2,737 1.30 53,871 9.60 1.5502
2025-02-11 2024-12-31 13F ECOLAB COM 278865100 209,756 -10,516 -4.77 49,150 -12.61 1.2741
2024-11-07 2024-09-30 13F ECOLAB COM 278865100 220,272 -4,766 -2.12 56,242 5.01 1.3810
2024-08-08 2024-06-30 13F ECOLAB COM 278865100 225,038 -8,057 -3.46 53,559 -0.49 1.3527
2024-05-09 2024-03-31 13F ECOLAB COM 278865100 233,095 555 0.24 53,822 16.69 1.3699
2024-02-08 2023-12-31 13F ECOLAB COM 278865100 232,540 11,606 5.25 46,125 23.25 1.2566
2023-11-08 2023-09-30 13F ECOLAB COM 278865100 220,934 -2,573 -1.15 37,426 -10.31 1.1277
2023-08-10 2023-06-30 13F ECOLAB COM 278865100 223,507 -367 -0.16 41,727 11.12 1.1695
2023-05-09 2023-03-31 13F ECOLAB COM 278865100 223,874 35,092 18.59 37,553 36.65 1.1004
2023-02-08 2022-12-31 13F ECOLAB COM 278865100 188,782 -7,074 -3.61 27,480 -2.85 0.8460
2022-11-09 2022-09-30 13F ECOLAB COM 278865100 195,856 -5,194 -2.58 28,285 -8.85 0.9266
2022-08-08 2022-06-30 13F ECOLAB COM 278865100 201,050 5,234 2.67 31,032 -10.24 0.9518
2022-05-04 2022-03-31 13F ECOLAB COM 278865100 195,816 5,971 3.15 34,573 -22.37 0.9196
2022-02-08 2021-12-31 13F ECOLAB COM 278865100 189,845 5,815 3.16 44,536 16.00 1.0445
2021-11-12 2021-09-30 13F ECOLAB COM 278865100 184,030 7,094 4.01 38,392 5.49 1.0135
2021-11-12 2021-06-30 13F/A-1 ECOLAB COM 278865100 176,936 17,870 11.23 36,394 6.88 1.0056
2021-08-06 2021-06-30 13F ECOLAB COM 278865100 176,936 17,870 36,394 0.7961
2021-05-10 2021-03-31 13F ECOLAB COM 278865100 159,066 12,968 8.88 34,051 7.72 1.0748
2021-02-12 2020-12-31 13F ECOLAB COM 278865100 146,098 -452 -0.31 31,610 7.93 1.1354
2020-11-09 2020-09-30 13F ECOLAB COM 278865100 146,550 -4,840 -3.20 29,287 -2.76 1.2338
2020-08-06 2020-06-30 13F ECOLAB COM 278865100 151,390 3,432 2.32 30,119 30.63 1.2875
2020-05-07 2020-03-31 13F ECOLAB COM 278865100 147,958 11,430 8.37 23,056 -12.49 1.2111
2020-02-10 2019-12-31 13F ECOLAB COM 278865100 136,528 -1,271 -0.92 26,348 -3.45 1.1729
2019-11-06 2019-09-30 13F ECOLAB COM 278865100 137,799 2,279 1.68 27,290 1.99 1.2751
2019-08-08 2019-06-30 13F ECOLAB COM 278865100 135,520 13,914 11.44 26,757 24.63 1.2916
2019-05-06 2019-03-31 13F ECOLAB COM 278865100 121,606 -693 -0.57 21,469 19.13 1.0854
2019-02-08 2018-12-31 13F ECOLAB COM 278865100 122,299 -16,219 -11.71 18,021 -17.02 1.0409
2018-11-09 2018-09-30 13F ECOLAB COM 278865100 138,518 985 0.72 21,717 12.52 1.0847
2018-08-01 2018-06-30 13F ECOLAB COM 278865100 137,533 100 0.07 19,300 2.45 1.0330
2018-05-09 2018-03-31 13F ECOLAB COM 278865100 137,433 -6,314 -4.39 18,838 -2.33 1.0385
2018-02-01 2017-12-31 13F ECOLAB COM 278865100 143,747 12,370 9.42 19,288 14.15 1.0604
2017-11-02 2017-09-30 13F ECOLAB COM 278865100 131,377 1,053 0.81 16,897 -2.33 0.9659
2017-08-03 2017-06-30 13F ECOLAB COM 278865100 130,324 10,679 8.93 17,300 15.36 1.0324
2017-05-02 2017-03-31 13F ECOLAB COM 278865100 119,645 -1,769 -1.46 14,997 5.38 0.9581
2017-01-23 2016-12-31 13F ECOLAB COM 278865100 121,414 8,151 7.20 14,232 3.24 0.9364
2016-10-27 2016-09-30 13F ECOLAB COM 278865100 113,263 23,642 26.38 13,786 29.70 0.8847
2016-07-28 2016-06-30 13F ECOLAB COM 278865100 89,621 3,136 3.63 10,629 10.20 0.7012
2016-04-20 2016-03-31 13F ECOLAB COM 278865100 86,485 -3,024 -3.38 9,645 -5.79 0.6424
2016-01-26 2015-12-31 13F ECOLAB COM 278865100 89,509 33,477 59.75 10,238 66.53 0.6917
2015-11-02 2015-09-30 13F ECOLAB COM 278865100 56,032 1,144 2.08 6,148 -0.93 0.4312
2015-07-28 2015-06-30 13F ECOLAB COM 278865100 54,888 5,331 10.76 6,206 9.49 0.3977
2015-05-08 2015-03-31 13F ECOLAB COM 278865100 49,557 49,557 5,668 0.3678
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.