Ecolab Inc.
MX ˙ BMV ˙ US2788651006
SecurityMX:ECL / Ecolab Inc.
InstitutionAmi Asset Management Corp
Latest Disclosed Ownership99,681 shares
Latest Disclosed Value $ 26,517,227
Ami Asset Management Corp reports 3.10% decrease in ownership of ECL / Ecolab Inc.

On April 23, 2026 - Ami Asset Management Corp filed a 13F-HR form disclosing ownership of 99,681 shares of Ecolab Inc. (MX:ECL) valued at $26,517,227 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 23, 2026 disclosing 102,869 shares of Ecolab Inc.. This represents a change in shares of -3.10% 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 99,681 -3,188 -3.10 26,517 -1.81 1.6932
2026-01-23 2025-12-31 13F ECOLAB COM 278865100 102,869 -2,228 -2.12 27,005 -6.17 1.5311
2025-10-16 2025-09-30 13F ECOLAB COM 278865100 105,097 -2,017 -1.88 28,782 -0.27 1.6074
2025-07-18 2025-06-30 13F ECOLAB COM 278865100 107,114 -5,920 -5.24 28,861 0.71 1.6495
2025-04-23 2025-03-31 13F ECOLAB COM 278865100 113,034 113,034 28,656 1.6768
2023-01-17 2022-12-31 13F ECOLAB COM 278865100 0 -168,810 -100.00 0 -100.00
2022-10-24 2022-09-30 13F ECOLAB COM 278865100 168,810 -7,097 -4.03 24,380 -9.86 1.7827
2022-07-21 2022-06-30 13F ECOLAB COM 278865100 175,907 -2,537 -1.42 27,047 -14.15 1.7157
2022-04-27 2022-03-31 13F ECOLAB COM 278865100 178,444 -2,573 -1.42 31,506 -25.81 1.6457
2022-01-20 2021-12-31 13F ECOLAB COM 278865100 181,017 -1,498 -0.82 42,465 11.53 2.0528
2021-10-22 2021-09-30 13F ECOLAB COM 278865100 182,515 -6,197 -3.28 38,076 -2.04 1.9053
2021-07-20 2021-06-30 13F ECOLAB COM 278865100 188,712 -6,326 -3.24 38,869 -6.91 1.9483
2021-04-16 2021-03-31 13F ECOLAB COM 278865100 195,038 34,980 21.85 41,752 20.57 2.1819
2021-01-20 2020-12-31 13F ECOLAB COM 278865100 160,058 -3,451 -2.11 34,630 5.98 1.7178
2020-10-23 2020-09-30 13F ECOLAB COM 278865100 163,509 -12,973 -7.35 32,676 -6.94 1.6611
2020-07-15 2020-06-30 13F ECOLAB COM 278865100 176,482 -12,791 -6.76 35,111 19.04 1.8725
2020-04-27 2020-03-31 13F ECOLAB COM 278865100 189,273 -85,785 -31.19 29,494 -44.44 1.8624
2020-01-23 2019-12-31 13F ECOLAB COM 278865100 275,058 -7,838 -2.77 53,083 -5.25 2.6211
2019-10-23 2019-09-30 13F ECOLAB COM 278865100 282,896 -4,179 -1.46 56,025 -1.16 2.9122
2019-08-05 2019-06-30 13F ECOLAB COM 278865100 287,075 44,650 18.42 56,680 32.44 2.8105
2019-04-25 2019-03-31 13F ECOLAB COM 278865100 242,425 -3,913 -1.59 42,798 17.91 3.1552
2019-01-25 2018-12-31 13F ECOLAB COM 278865100 246,338 -5,101 -2.03 36,298 -7.92 2.9987
2018-10-22 2018-09-30 13F ECOLAB COM 278865100 251,439 -4,236 -1.66 39,421 9.87 2.6825
2018-07-23 2018-06-30 13F ECOLAB COM 278865100 255,675 -9,104 -3.44 35,879 -1.14 2.5676
2018-04-20 2018-03-31 13F ECOLAB COM 278865100 264,779 -4,572 -1.70 36,293 0.42 2.5914
2018-01-16 2017-12-31 13F ECOLAB COM 278865100 269,351 -10,769 -3.84 36,142 0.32 2.4941
2017-10-10 2017-09-30 13F ECOLAB COM 278865100 280,120 -1,378 -0.49 36,026 -3.59 2.5501
2017-07-14 2017-06-30 13F ECOLAB COM 278865100 281,498 -12,052 -4.11 37,369 1.56 2.6651
2017-04-13 2017-03-31 13F ECOLAB COM 278865100 293,550 -4,030 -1.35 36,794 5.48 2.7712
2017-01-24 2016-12-31 13F ECOLAB COM 278865100 297,580 -23,723 -7.38 34,882 -10.81 2.5773
2016-10-18 2016-09-30 13F ECOLAB COM 278865100 321,303 -6,086 -1.86 39,109 0.72 2.6958
2016-07-20 2016-06-30 13F ECOLAB COM 278865100 327,389 -11,348 -3.35 38,828 2.78 2.7038
2016-04-19 2016-03-31 13F ECOLAB COM 278865100 338,737 299 0.09 37,776 -2.42 2.5927
2016-01-26 2015-12-31 13F ECOLAB COM 278865100 338,438 8,045 2.43 38,711 6.79 2.6885
2015-10-16 2015-09-30 13F ECOLAB COM 278865100 330,393 23,558 7.68 36,251 4.49 2.7701
2015-07-16 2015-06-30 13F ECOLAB COM 278865100 306,835 16,890 5.83 34,694 4.61 2.5838
2015-04-14 2015-03-31 13F ECOLAB COM 278865100 289,945 12,955 4.68 33,164 14.55 2.5790
2015-01-20 2014-12-31 13F ECOLAB COM 278865100 276,990 6,950 2.57 28,951 -6.64 2.5302
2014-10-16 2014-09-30 13F ECOLAB COM 278865100 270,040 -2,297 -0.84 31,009 2.27 3.0410
2014-07-09 2014-06-30 13F ECOLAB COM 278865100 272,337 -865 -0.32 30,322 2.78 3.0133
2014-04-16 2014-03-31 13F ECOLAB COM 278865100 273,202 12,595 4.83 29,503 8.57 3.0199
2014-01-22 2013-12-31 13F ECOLAB COM 278865100 260,607 685 0.26 27,173 5.86 2.9880
2013-10-15 2013-09-30 13F ECOLAB COM 278865100 259,922 4,455 1.74 25,670 17.95 3.6986
2013-07-22 2013-06-30 13F ECOLAB COM 278865100 255,467 255,467 21,763 3.4002
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.