Ecolab Inc.
MX ˙ BMV ˙ US2788651006
SecurityMX:ECL / Ecolab Inc.
InstitutionFayez Sarofim & Co
Latest Disclosed Ownership2,602 shares
Latest Disclosed Value $ 692,184
Fayez Sarofim & Co reports 11.87% increase in ownership of ECL / Ecolab Inc.

On May 15, 2026 - Fayez Sarofim & Co filed a 13F-HR form disclosing ownership of 2,602 shares of Ecolab Inc. (MX:ECL) valued at $692,184 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 2,326 shares of Ecolab Inc.. This represents a change in shares of 11.87% 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)
2026-05-15 2026-03-31 13F ECOLAB Common Stock 278865100 2,602 276 11.87 692 13.44 0.0006
2026-02-13 2025-12-31 13F ECOLAB Common Stock 278865100 2,326 -56 -2.35 611 -6.44 0.0015
2025-11-14 2025-09-30 13F ECOLAB INC COM COM 278865100 2,382 0 0.00 652 1.72 0.0015
2025-08-14 2025-06-30 13F ECOLAB COM 278865100 2,382 56 2.41 642 8.83 0.0015
2025-05-12 2025-03-31 13F ECOLAB COM 278865100 2,326 0 0.00 590 8.07 0.0015
2025-02-14 2024-12-31 13F ECOLAB COM 278865100 2,326 0 0.00 545 -8.09 0.0013
2024-11-14 2024-09-30 13F ECOLAB COM 278865100 2,326 0 0.00 594 7.23 0.0015
2024-08-14 2024-06-30 13F ECOLAB COM 278865100 2,326 0 0.00 554 2.98 0.0015
2024-05-14 2024-03-31 13F ECOLAB COM 278865100 2,326 0 0.00 537 14.01 0.0016
2024-02-15 2023-12-31 13F ECOLABINC COM 278865100 2,326 -252 -9.78 472 8.03 0.0014
2023-11-15 2023-09-30 13F ECOLAB COM 278865100 2,578 0 0.00 437 -9.36 0.0015
2023-08-14 2023-06-30 13F ECOLAB COM 278865100 2,578 829 47.40 481 66.44 0.0017
2023-05-11 2023-03-31 13F ECOLAB COM 278865100 1,749 27 1.57 290 15.60 0.0010
2023-02-13 2022-12-31 13F ECOLAB COM 278865100 1,722 -670 -28.01 251 -27.54 0.0009
2022-11-15 2022-09-30 13F ECOLAB COM 278865100 2,392 -244 -9.26 345 -14.81 0.0014
2022-08-12 2022-06-30 13F ECOLAB COM 278865100 2,636 576 27.96 405 11.26 0.0015
2022-05-16 2022-03-31 13F ECOLAB COM 278865100 2,060 -28 -1.34 364 -25.71 0.0012
2022-02-11 2021-12-31 13F ECOLAB COM 278865100 2,088 575 38.00 490 55.06 0.0015
2021-11-15 2021-09-30 13F ECOLAB COM 278865100 1,513 0 0.00 316 1.28 0.0010
2021-08-13 2021-06-30 13F EcolabInc COMMON 278865100 1,513 0 0.00 312 -3.70 0.0010
2021-05-13 2021-03-31 13F EcolabInc COMMON 278865100 1,513 -5 -0.33 324 -1.22 0.0012
2021-02-11 2020-12-31 13F EcolabInc COMMON 278865100 1,518 0 0.00 328 8.25 0.0013
2020-11-13 2020-09-30 13F EcolabInc COMMON 278865100 1,518 0 0.00 303 0.33 0.0013
2020-08-11 2020-06-30 13F EcolabInc COMMON 278865100 1,518 0 0.00 302 27.43 0.0014
2020-05-12 2020-03-31 13F EcolabInc COMMON 278865100 1,518 -50 -3.19 237 -21.78 0.0015
2020-02-14 2019-12-31 13F EcolabInc COMMON 278865100 1,568 25 1.62 303 -0.98 0.0015
2019-11-13 2019-09-30 13F EcolabInc COMMON 278865100 1,543 0 0.00 306 0.33 0.0016
2019-08-09 2019-06-30 13F EcolabInc COMMON 278865100 1,543 0 0.00 305 12.13 0.0016
2019-05-14 2019-03-31 13F EcolabInc COMMON 278865100 1,543 0 0.00 272 19.82 0.0014
2019-02-13 2018-12-31 13F EcolabInc COMMON 278865100 1,543 -5,250 -77.29 227 -78.69 0.0014
2018-11-14 2018-09-30 13F EcolabInc COMMON 278865100 6,793 6,793 1,065 0.0056
2015-02-13 2014-12-31 13F PioneerFundInc.ClassA COMMON 723682100 0 -16,269 -100.00 0 -100.00
2014-11-14 2014-09-30 13F PioneerFundInc.ClassA COMMON 723682100 16,269 17 0.10 668 -1.18 0.0031
2014-08-14 2014-06-30 13F PioneerFundInc.ClassA COMMON 723682100 16,252 18 0.11 676 4.16 0.0031
2014-05-14 2014-03-31 13F PioneerFundInc.ClassA COMMON 723682100 16,234 16,234 649 0.0031
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.