Ecolab Inc.
MX ˙ BMV ˙ US2788651006
SecurityMX:ECL / Ecolab Inc.
InstitutionOppenheimer & Co Inc
Latest Disclosed Ownership5,396 shares
Latest Disclosed Value $ 1,435,444
Oppenheimer & Co Inc reports 8.68% increase in ownership of ECL / Ecolab Inc.

On April 23, 2026 - Oppenheimer & Co Inc filed a 13F-HR form disclosing ownership of 5,396 shares of Ecolab Inc. (MX:ECL) valued at $1,435,444 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 2, 2026 disclosing 4,965 shares of Ecolab Inc.. This represents a change in shares of 8.68% 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 5,396 431 8.68 1,435 10.13 0.0175
2026-02-02 2025-12-31 13F ECOLAB COM 278865100 4,965 122 2.52 1,303 -1.73 0.0185
2025-11-06 2025-09-30 13F ECOLAB COM 278865100 4,843 -2 -0.04 1,326 1.61 0.0162
2025-07-31 2025-06-30 13F ECOLAB COM 278865100 4,845 -433 -8.20 1,305 -2.47 0.0173
2025-04-23 2025-03-31 13F ECOLAB COM 278865100 5,278 884 20.12 1,338 30.03 0.0202
2025-02-05 2024-12-31 13F ECOLAB COM 278865100 4,394 34 0.78 1,030 -7.55 0.0154
2024-11-05 2024-09-30 13F ECOLAB COM 278865100 4,360 -350 -7.43 1,113 -0.62 0.0170
2024-08-08 2024-06-30 13F ECOLAB COM 278865100 4,710 125 2.73 1,121 5.86 0.0178
2024-05-07 2024-03-31 13F ECOLAB COM 278865100 4,585 -1,112 -19.52 1,059 -6.37 0.0176
2024-02-13 2023-12-31 13F ECOLAB COM 278865100 5,697 -78 -1.35 1,130 15.54 0.0208
2023-11-08 2023-09-30 13F ECOLAB COM 278865100 5,775 12 0.21 978 -9.02 0.0202
2023-08-03 2023-06-30 13F ECOLAB COM 278865100 5,763 -144 -2.44 1,076 10.03 0.0215
2023-05-10 2023-03-31 13F ECOLAB COM 278865100 5,907 170 2.96 978 17.01 0.0207
2023-02-08 2022-12-31 13F ECOLAB COM 278865100 5,737 -1,268 -18.10 835 -17.49 0.0190
2022-11-14 2022-09-30 13F ECOLAB COM 278865100 7,005 593 9.25 1,012 2.64 0.0237
2022-08-08 2022-06-30 13F ECOLAB COM 278865100 6,412 -291 -4.34 986 -16.65 0.0212
2022-05-12 2022-03-31 13F ECOLAB COM 278865100 6,703 445 7.11 1,183 -19.41 0.0213
2022-02-02 2021-12-31 13F ECOLAB COM 278865100 6,258 -342 -5.18 1,468 6.61 0.0257
2021-11-12 2021-09-30 13F ECOLAB COM 278865100 6,600 -2,087 -24.02 1,377 -23.03 0.0258
2021-08-03 2021-06-30 13F ECOLAB COM 278865100 8,687 688 8.60 1,789 4.50 0.0321
2021-05-10 2021-03-31 13F ECOLAB COM 278865100 7,999 -691 -7.95 1,712 -8.94 0.0342
2021-02-11 2020-12-31 13F ECOLAB COM 278865100 8,690 -111 -1.26 1,880 6.88 0.0397
2020-11-13 2020-09-30 13F ECOLAB COM 278865100 8,801 -914 -9.41 1,759 -9.00 0.0440
2020-08-11 2020-06-30 13F ECOLAB COM 278865100 9,715 -63 -0.64 1,933 26.84 0.0500
2020-05-08 2020-03-31 13F ECOLAB COM 278865100 9,778 1,572 19.16 1,524 -3.79 0.0463
2020-02-07 2019-12-31 13F ECOLAB COM 278865100 8,206 -1,041 -11.26 1,584 -13.54 0.0392
2019-10-31 2019-09-30 13F ECOLAB COM 278865100 9,247 -1,998 -17.77 1,832 -17.48 0.0499
2019-08-09 2019-06-30 13F ECOLAB COM 278865100 11,245 -535 -4.54 2,220 6.78 0.0603
2019-04-24 2019-03-31 13F ECOLAB COM 278865100 11,780 2,063 21.23 2,079 45.28 0.0555
2019-01-29 2018-12-31 13F ECOLAB COM 278865100 9,717 -292 -2.92 1,431 -8.80 0.0447
2018-10-26 2018-09-30 13F ECOLAB COM 278865100 10,009 -448 -4.28 1,569 6.95 0.0399
2018-08-10 2018-06-30 13F ECOLAB COM 278865100 10,457 -925 -8.13 1,467 -5.96 0.0398
2018-05-01 2018-03-31 13F ECOLAB COM 278865100 11,382 103 0.91 1,560 3.04 0.0401
2018-02-07 2017-12-31 13F ECOLAB COM 278865100 11,279 -735 -6.12 1,514 -2.01 0.0390
2017-11-09 2017-09-30 13F ECOLAB COM 278865100 12,014 591 5.17 1,545 1.85 0.0414
2017-08-09 2017-06-30 13F ECOLAB COM 278865100 11,423 -2,181 -16.03 1,517 -11.03 0.0418
2017-05-15 2017-03-31 13F ECOLAB COM 278865100 13,604 242 1.81 1,705 8.88 0.0483
2017-02-01 2016-12-31 13F ECOLAB COM 278865100 13,362 -28,039 -67.73 1,566 -68.92 0.0456
2016-11-07 2016-09-30 13F ECOLAB COM 278865100 41,401 -5,307 -11.36 5,039 -9.03 0.1469
2016-08-08 2016-06-30 13F ECOLAB COM 278865100 46,708 1,360 3.00 5,539 9.55 0.1651
2016-04-26 2016-03-31 13F ECOLAB COM 278865100 45,348 -8,180 -15.28 5,056 -17.41 0.1535
2016-02-03 2015-12-31 13F ECOLAB COM 278865100 53,528 38,119 247.38 6,122 262.03 0.1822
2015-11-13 2015-09-30 13F ECOLAB COM 278865100 15,409 6,614 75.20 1,691 70.12 0.0514
2015-08-12 2015-06-30 13F ECOLAB COM 278865100 8,795 -316 -3.47 994 -4.61 0.0277
2015-05-08 2015-03-31 13F ECOLAB COM 278865100 9,111 -1,633 -15.20 1,042 -7.21 0.0284
2015-02-10 2014-12-31 13F ECOLAB COM 278865100 10,744 -870 -7.49 1,123 -15.75 0.0322
2014-11-12 2014-09-30 13F ECOLAB COM 278865100 11,614 -1,871 -13.87 1,333 -11.19 0.0396
2014-08-14 2014-06-30 13F ECOLAB COM 278865100 13,485 369 2.81 1,501 5.93 0.0452
2014-05-09 2014-03-31 13F ECOLAB COM 278865100 13,116 -1,189 -8.31 1,417 -5.03 0.0425
2014-02-12 2013-12-31 13F ECOLAB COM 278865100 14,305 -14 -0.10 1,492 5.52 0.0477
2013-11-01 2013-09-30 13F ECOLAB COM 278865100 14,319 756 5.57 1,414 22.42 0.0497
2013-08-14 2013-06-30 13F ECOLAB COM 278865100 13,563 13,563 1,155 0.0447
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.