Ecolab Inc.
MX ˙ BMV ˙ US2788651006
SecurityMX:ECL / Ecolab Inc.
InstitutionContravisory Investment Management, Inc.
Latest Disclosed Ownership4,974 shares
Latest Disclosed Value $ 1,323,183
Contravisory Investment Management, Inc. reports 0.59% increase in ownership of ECL / Ecolab Inc.

On April 20, 2026 - Contravisory Investment Management, Inc. filed a 13F-HR form disclosing ownership of 4,974 shares of Ecolab Inc. (MX:ECL) valued at $1,323,183 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 12, 2026 disclosing 4,945 shares of Ecolab Inc.. This represents a change in shares of 0.59% 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.

Upgrade to unlock premium data and export to Excel .

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)
2026-04-20 2026-03-31 13F ECOLAB COM 278865100 4,974 29 0.59 1,323 1.93 0.2711
2026-01-12 2025-12-31 13F ECOLAB COM 278865100 4,945 -196 -3.81 1,298 -7.75 0.2572
2025-10-09 2025-09-30 13F ECOLAB COM 278865100 5,141 134 2.68 1,408 4.30 0.2726
2025-07-10 2025-06-30 13F ECOLAB COM 278865100 5,007 1,140 29.48 1,349 37.65 0.2654
2025-04-10 2025-03-31 13F ECOLAB COM 278865100 3,867 -17 -0.44 980 7.69 0.2065
2025-01-14 2024-12-31 13F ECOLAB COM 278865100 3,884 -99 -2.49 910 -10.43 0.1946
2024-10-09 2024-09-30 13F ECOLAB COM 278865100 3,983 -8 -0.20 1,017 7.06 0.2175
2024-07-10 2024-06-30 13F ECOLAB COM 278865100 3,991 9 0.23 950 3.26 0.2103
2024-04-11 2024-03-31 13F ECOLAB COM 278865100 3,982 1,849 86.69 919 117.26 0.2037
2024-01-11 2023-12-31 13F ECOLAB COM 278865100 2,133 2,133 423 0.1037
2021-07-14 2021-06-30 13F ECOLAB COM 278865100 0 -1,117 -100.00 0 -100.00
2021-04-14 2021-03-31 13F ECOLAB COM 278865100 1,117 0 0.00 239 -1.24 0.0747
2021-01-13 2020-12-31 13F ECOLAB COM 278865100 1,117 -134 -10.71 242 -3.20 0.0751
2020-10-08 2020-09-30 13F ECOLAB COM 278865100 1,251 525 72.31 250 66.67 0.0852
2020-07-09 2020-06-30 13F ECOLAB COM 278865100 726 0 0.00 150 32.74 0.0551
2020-04-09 2020-03-31 13F ECOLAB COM 278865100 726 300 70.42 113 37.80 0.0501
2020-01-09 2019-12-31 13F ECOLAB COM 278865100 426 47 12.40 82 9.33 0.0300
2019-10-07 2019-09-30 13F ECOLAB COM 278865100 379 43 12.80 75 13.64 0.0285
2019-07-09 2019-06-30 13F ECOLAB COM 278865100 336 48 16.67 66 29.41 0.0255
2019-04-08 2019-03-31 13F ECOLAB COM 278865100 288 0 0.00 51 21.43 0.0198
2019-01-14 2018-12-31 13F ECOLAB COM 278865100 288 288 42 0.0181
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.