Ecolab Inc.
MX ˙ BMV ˙ US2788651006
SecurityMX:ECL / Ecolab Inc.
InstitutionFactory Mutual Insurance Co
Latest Disclosed Ownership101,400 shares
Latest Disclosed Value $ 26,974,428
Factory Mutual Insurance Co reports 4.11% increase in ownership of ECL / Ecolab Inc.

On May 5, 2026 - Factory Mutual Insurance Co filed a 13F-HR form disclosing ownership of 101,400 shares of Ecolab Inc. (MX:ECL) valued at $26,974,428 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 23, 2026 disclosing 97,400 shares of Ecolab Inc.. This represents a change in shares of 4.11% 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)
2026-05-05 2026-03-31 13F ECOLAB COM 278865100 101,400 4,000 4.11 26,974 5.49 0.3035
2026-01-23 2025-12-31 13F ECOLAB COM 278865100 97,400 -4,000 -3.94 25,569 -7.92 0.2592
2025-11-10 2025-09-30 13F ECOLAB COM 278865100 101,400 0 0.00 27,769 1.64 0.2704
2025-08-07 2025-06-30 13F ECOLAB COM 278865100 101,400 0 0.00 27,321 6.28 0.2986
2025-04-17 2025-03-31 13F ECOLAB COM 278865100 101,400 0 0.00 25,707 8.19 0.2982
2025-01-24 2024-12-31 13F ECOLAB COM 278865100 101,400 0 0.00 23,760 -8.23 0.2569
2024-10-10 2024-09-30 13F ECOLAB COM 278865100 101,400 -1,800 -1.74 25,890 5.41 0.2678
2024-07-23 2024-06-30 13F ECOLAB COM 278865100 103,200 -1,700 -1.62 24,562 1.40 0.2798
2024-04-12 2024-03-31 13F ECOLAB COM 278865100 104,900 -3,700 -3.41 24,221 12.45 0.2782
2024-01-23 2023-12-31 13F ECOLAB COM 278865100 108,600 0 0.00 21,541 17.09 0.2675
2023-11-07 2023-09-30 13F ECOLAB COM 278865100 108,600 0 0.00 18,397 -9.26 0.2566
2023-07-27 2023-06-30 13F ECOLAB COM 278865100 108,600 0 0.00 20,275 12.78 0.2991
2023-05-08 2023-03-31 13F ECOLAB COM 278865100 108,600 -2,000 -1.81 17,977 11.67 0.2810
2023-02-02 2022-12-31 13F ECOLAB COM 278865100 110,600 0 0.00 16,099 0.79 0.2435
2022-11-04 2022-09-30 13F ECOLAB COM 278865100 110,600 -1,900 -1.69 15,972 -7.67 0.2622
2022-08-08 2022-06-30 13F ECOLAB COM 278865100 112,500 32,900 41.33 17,298 23.08 0.2836
2022-05-13 2022-03-31 13F ECOLAB COM 278865100 79,600 0 0.00 14,054 -5.13 0.1901
2022-02-10 2021-12-31 13F ECOLAB COM 278865100 79,600 -5,300 -6.24 14,814 -16.36 0.2139
2021-11-12 2021-09-30 13F ECOLAB COM 278865100 84,900 -1,800 -2.08 17,712 -0.82 0.2212
2021-07-14 2021-06-30 13F ECOLAB COM 278865100 86,700 -1,500 -1.70 17,858 -5.42 0.2184
2021-05-10 2021-03-31 13F ECOLAB COM 278865100 88,200 0 0.00 18,881 -1.06 0.2415
2021-02-17 2020-12-31 13F ECOLAB COM 278865100 88,200 -1,700 -1.89 19,083 6.22 0.2580
2020-10-19 2020-09-30 13F ECOLAB COM 278865100 89,900 0 0.00 17,966 0.45 0.2908
2020-07-13 2020-06-30 13F ECOLAB COM 278865100 89,900 -1,900 -2.07 17,886 25.03 0.3067
2020-04-16 2020-03-31 13F ECOLAB COM 278865100 91,800 0 0.00 14,305 -19.25 0.2717
2020-01-28 2019-12-31 13F ECOLAB COM 278865100 91,800 0 0.00 17,716 -2.55 0.2612
2019-10-22 2019-09-30 13F ECOLAB COM 278865100 91,800 0 0.00 18,180 0.30 0.2811
2019-07-16 2019-06-30 13F ECOLAB COM 278865100 91,800 0 0.00 18,125 9.13 0.2167
2019-04-09 2019-03-31 13F ECOLAB COM 278865100 91,800 0 0.00 16,608 22.78 0.1961
2019-01-14 2018-12-31 13F ECOLAB COM 278865100 91,800 -45,000 -32.89 13,527 -36.93 0.1736
2018-10-10 2018-09-30 13F ECOLAB COM 278865100 136,800 -37,800 -21.65 21,448 -12.46 0.2226
2018-07-19 2018-06-30 13F ECOLAB COM 278865100 174,600 0 0.00 24,502 2.38 0.2629
2018-04-05 2018-03-31 13F ECOLAB COM 278865100 174,600 0 0.00 23,932 2.15 0.2621
2018-01-16 2017-12-31 13F ECOLAB COM 278865100 174,600 0 0.00 23,428 4.33 0.2451
2017-10-11 2017-09-30 13F ECOLAB COM 278865100 174,600 0 0.00 22,455 -3.12 0.2462
2017-07-10 2017-06-30 13F ECOLAB COM 278865100 174,600 0 0.00 23,178 5.91 0.2681
2017-04-21 2017-03-31 13F ECOLAB COM 278865100 174,600 -55,500 -24.12 21,885 -19.27 0.2592
2017-01-19 2016-12-31 13F ECOLAB COM 278865100 230,100 0 0.00 27,110 -3.21 0.3217
2016-10-26 2016-09-30 13F ECOLAB COM 278865100 230,100 0 0.00 28,008 2.63 0.3463
2016-07-12 2016-06-30 13F ECOLAB COM 278865100 230,100 0 0.00 27,290 6.35 0.3595
2016-04-27 2016-03-31 13F ECOLAB COM 278865100 230,100 40,000 21.04 25,661 18.01 0.3321
2016-01-14 2015-12-31 13F ECOLAB COM 278865100 190,100 -57,000 -23.07 21,744 -19.80 0.2925
2015-10-14 2015-09-30 13F ECOLAB COM 278865100 247,100 0 0.00 27,112 -2.96 0.3709
2015-07-21 2015-06-30 13F ECOLAB COM 278865100 247,100 0 0.00 27,940 -1.14 0.3649
2015-04-13 2015-03-31 13F ECOLAB COM 278865100 247,100 22,500 10.02 28,262 20.39 0.3723
2015-01-12 2014-12-31 13F ECOLAB COM 278865100 224,600 30,000 15.42 23,475 5.05 0.3164
2014-11-04 2014-09-30 13F ECOLAB COM 278865100 194,600 0 0.00 22,346 3.13 0.3090
2014-08-12 2014-06-30 13F ECOLAB COM 278865100 194,600 30,000 18.23 21,667 21.90 0.2963
2014-05-15 2014-03-31 13F ECOLAB COM 278865100 164,600 0 0.00 17,775 3.57 0.2573
2014-02-04 2013-12-31 13F ECOLAB COM 278865100 164,600 -40,000 -19.55 17,163 -15.06 0.2524
2013-10-16 2013-09-30 13F ECOLAB COM 278865100 204,600 -15,000 -6.83 20,206 8.01 0.3204
2013-07-25 2013-06-30 13F ECOLAB COM 278865100 219,600 219,600 18,708 0.3066
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.