Ecolab Inc.
MX ˙ BMV ˙ US2788651006
SecurityMX:ECL / Ecolab Inc.
InstitutionMcCollum Christoferson Group LLC
Latest Disclosed Ownership114,044 shares
Latest Disclosed Value $ 12,672,281
McCollum Christoferson Group LLC reports 107.41% increase in ownership of ECL / Ecolab Inc.

On April 10, 2026 - McCollum Christoferson Group LLC filed a 13F-HR form disclosing ownership of 114,044 shares of Ecolab Inc. (MX:ECL) valued at $12,672,281 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 9, 2026 disclosing 54,984 shares of Ecolab Inc.. This represents a change in shares of 107.41% 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)
2026-04-10 2026-03-31 13F ECOLAB INC COM Stock 278865100 114,044 59,060 107.41 12,672 -12.21 3.8082
2026-01-09 2025-12-31 13F ECOLAB INC COM Stock 278865100 54,984 -1,223 -2.18 14,434 -6.22 4.1756
2025-11-17 2025-09-30 13F ECOLAB INC COM Stock 278865100 56,207 -195 -0.35 15,393 1.29 4.4108
2025-08-13 2025-06-30 13F ECOLAB INC COM COM 278865100 56,402 -744 -1.30 15,197 4.89 4.5218
2025-05-06 2025-03-31 13F ECOLAB INC COM COM 278865100 57,146 -330 -0.57 14,488 7.57 4.4202
2025-02-11 2024-12-31 13F ECOLAB INC COM INC COM 278865100 57,476 -170 -0.29 13,468 -8.50 3.9797
2024-10-16 2024-09-30 13F ECOLAB COM 278865100 57,646 -462 -0.80 14,719 6.43 4.2640
2024-07-30 2024-06-30 13F ECOLAB COM 278865100 58,108 -2,168 -3.60 13,830 -0.63 4.1145
2024-04-26 2024-03-31 13F ECOLAB COM 278865100 60,276 -980 -1.60 13,918 14.54 4.0253
2024-01-19 2023-12-31 13F ECOLAB COM 278865100 61,256 -829 -1.34 12,150 15.53 3.6756
2023-11-08 2023-09-30 13F ECOLAB COM 278865100 62,085 -1,852 -2.90 10,517 -11.89 3.2326
2023-07-28 2023-06-30 13F ECOLAB COM 278865100 63,937 -478 -0.74 11,936 11.95 3.3999
2023-05-02 2023-03-31 13F ECOLAB COM 278865100 64,415 -675 -1.04 10,663 12.54 3.2877
2023-02-07 2022-12-31 13F ECOLAB COM 278865100 65,090 -189 -0.29 9,474 0.49 2.9976
2022-11-01 2022-09-30 13F ECOLAB COM 278865100 65,279 20,831 46.87 9,428 37.96 3.1535
2022-08-10 2022-06-30 13F ECOLAB COM 278865100 44,448 -320 -0.71 6,834 -13.54 2.0828
2022-05-10 2022-03-31 13F ECOLAB COM 278865100 44,768 342 0.77 7,904 -24.16 1.9529
2022-02-09 2021-12-31 13F ECOLAB COM 278865100 44,426 399 0.91 10,422 13.47 2.3469
2021-10-13 2021-09-30 13F ECOLAB COM 278865100 44,027 110 0.25 9,185 1.54 2.1875
2021-07-14 2021-06-30 13F ECOLAB COM 278865100 43,917 194 0.44 9,046 -3.35 2.1499
2021-04-22 2021-03-31 13F ECOLAB COM 278865100 43,723 263 0.61 9,360 -0.46 2.3771
2021-01-22 2020-12-31 13F ECOLAB COM 278865100 43,460 1,030 2.43 9,403 10.90 2.4048
2020-10-22 2020-09-30 13F ECOLAB COM 278865100 42,430 190 0.45 8,479 0.89 2.4337
2020-07-31 2020-06-30 13F ECOLAB COM 278865100 42,240 -1,173 -2.70 8,404 24.23 2.7281
2020-04-13 2020-03-31 13F ECOLAB COM 278865100 43,413 -1,682 -3.73 6,765 -22.27 2.7026
2020-01-30 2019-12-31 13F ECOLAB COM 278865100 45,095 -160 -0.35 8,703 -3.39 2.9259
2019-10-17 2019-09-30 13F ECOLAB COM 278865100 45,255 -1,557 -3.33 9,008 -2.54 3.2157
2019-07-11 2019-06-30 13F ECOLAB COM 278865100 46,812 -762 -1.60 9,243 10.05 3.2604
2019-04-11 2019-03-31 13F ECOLAB COM 278865100 47,574 -590 -1.22 8,399 18.35 3.0971
2019-01-15 2018-12-31 13F ECOLAB COM 278865100 48,164 169 0.35 7,097 -5.69 2.9960
2018-10-16 2018-09-30 13F ECOLAB COM 278865100 47,995 -7 -0.01 7,525 11.71 2.7597
2018-07-24 2018-06-30 13F ECOLAB COM 278865100 48,002 -428 -0.88 6,736 1.48 2.7415
2018-04-19 2018-03-31 13F ECOLAB COM 278865100 48,430 -344 -0.71 6,638 1.44 2.7687
2018-01-18 2017-12-31 13F ECOLAB COM 278865100 48,774 48,774 6,544 2.7107
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.