Ecolab Inc.
MX ˙ BMV ˙ US2788651006
SecurityMX:ECL / Ecolab Inc.
InstitutionOppenheimer Asset Management Inc.
Latest Disclosed Ownership65,095 shares
Latest Disclosed Value $ 17,316,573
Oppenheimer Asset Management Inc. reports 8.92% decrease in ownership of ECL / Ecolab Inc.

On April 23, 2026 - Oppenheimer Asset Management Inc. filed a 13F-HR form disclosing ownership of 65,095 shares of Ecolab Inc. (MX:ECL) valued at $17,316,573 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 2, 2026 disclosing 71,468 shares of Ecolab Inc.. This represents a change in shares of -8.92% 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)
2026-04-23 2026-03-31 13F ECOLAB COM 278865100 65,095 -6,373 -8.92 17,317 -7.70 0.0495
2026-02-02 2025-12-31 13F ECOLAB COM 278865100 71,468 -2,055 -2.80 18,762 -6.82 0.2307
2025-11-06 2025-09-30 13F ECOLAB COM 278865100 73,523 -2,657 -3.49 20,135 -1.90 0.2215
2025-07-31 2025-06-30 13F ECOLAB COM 278865100 76,180 -702 -0.91 20,526 5.31 0.2354
2025-04-23 2025-03-31 13F ECOLAB COM 278865100 76,882 544 0.71 19,491 8.97 0.2419
2025-02-05 2024-12-31 13F ECOLAB COM 278865100 76,338 552 0.73 17,888 -7.56 0.2174
2024-11-05 2024-09-30 13F ECOLAB COM 278865100 75,786 -101 -0.13 19,350 7.14 0.2330
2024-08-08 2024-06-30 13F ECOLAB COM 278865100 75,887 46,832 161.18 18,061 169.25 0.2307
2024-05-07 2024-03-31 13F ECOLAB COM 278865100 29,055 -28,473 -49.49 6,709 -41.21 0.0983
2024-02-13 2023-12-31 13F ECOLAB COM 278865100 57,528 -7,809 -11.95 11,411 3.09 0.1587
2023-11-08 2023-09-30 13F ECOLAB COM 278865100 65,337 6,379 10.82 11,068 0.56 0.1698
2023-08-03 2023-06-30 13F ECOLAB COM 278865100 58,958 4,818 8.90 11,007 22.82 0.1619
2023-05-10 2023-03-31 13F ECOLAB COM 278865100 54,140 4,066 8.12 8,962 22.96 0.1380
2023-02-07 2022-12-31 13F ECOLAB COM 278865100 50,074 -116 -0.23 7,289 0.55 0.1173
2022-11-14 2022-09-30 13F ECOLAB COM 278865100 50,190 1,503 3.09 7,248 -3.18 0.1278
2022-08-08 2022-06-30 13F ECOLAB COM 278865100 48,687 2,600 5.64 7,486 -8.01 0.1254
2022-05-12 2022-03-31 13F ECOLAB COM 278865100 46,087 5,972 14.89 8,138 -13.52 0.1155
2022-02-02 2021-12-31 13F ECOLAB COM 278865100 40,115 -15,621 -28.03 9,410 -19.07 0.1248
2021-11-12 2021-09-30 13F ECOLAB COM 278865100 55,736 1,244 2.28 11,628 3.61 0.1653
2021-08-03 2021-06-30 13F ECOLAB COM 278865100 54,492 1,313 2.47 11,223 -1.41 0.1598
2021-05-17 2021-03-31 13F ECOLAB COM 278865100 53,179 2,489 4.91 11,384 3.79 0.1764
2021-02-11 2020-12-31 13F ECOLAB COM 278865100 50,690 424 0.84 10,968 9.20 0.1831
2020-11-13 2020-09-30 13F ECOLAB COM 278865100 50,266 2,391 4.99 10,044 5.46 0.1950
2020-08-11 2020-06-30 13F ECOLAB COM 278865100 47,875 5,078 11.87 9,524 42.79 0.1965
2020-05-08 2020-03-31 13F ECOLAB COM 278865100 42,797 3,862 9.92 6,670 -11.23 0.1639
2020-02-07 2019-12-31 13F ECOLAB COM 278865100 38,935 1,732 4.66 7,514 1.98 0.1587
2019-10-31 2019-09-30 13F ECOLAB COM 278865100 37,203 -120 -0.32 7,368 -0.01 0.1637
2019-08-09 2019-06-30 13F ECOLAB COM 278865100 37,323 -22,824 -37.95 7,369 -30.61 0.1628
2019-04-24 2019-03-31 13F ECOLAB COM 278865100 60,147 -428 -0.71 10,619 18.95 0.2385
2019-01-30 2018-12-31 13F ECOLAB COM 278865100 60,575 -209 -0.34 8,927 -6.32 0.2212
2018-10-26 2018-09-30 13F ECOLAB COM 278865100 60,784 1,190 2.00 9,529 13.94 0.2111
2018-08-10 2018-06-30 13F ECOLAB COM 278865100 59,594 -670 -1.11 8,363 1.23 0.2046
2018-05-09 2018-03-31 13F ECOLAB COM 278865100 60,264 -1,484 -2.40 8,261 4.03 0.2072
2018-02-07 2017-12-31 13F ECOLAB COM 278865100 61,748 0 0.00 7,941 0.00 0.2107
2017-11-14 2017-09-30 13F ECOLAB COM 278865100 61,748 -827 -1.32 7,941 -4.39 0.2063
2017-08-09 2017-06-30 13F ECOLAB COM 278865100 62,575 -1,287 -2.02 8,306 3.77 0.2295
2017-05-15 2017-03-31 13F ECOLAB COM 278865100 63,862 63,862 8,004 0.2280
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.