Ecolab Inc.
MX ˙ BMV ˙ US2788651006
SecurityMX:ECL / Ecolab Inc.
InstitutionFirst County Bank /CT/
Latest Disclosed Ownership1,368 shares
Latest Disclosed Value $ 363,915
First County Bank /CT/ reports 5.80% increase in ownership of ECL / Ecolab Inc.

On April 3, 2026 - First County Bank /CT/ filed a 13F-HR form disclosing ownership of 1,368 shares of Ecolab Inc. (MX:ECL) valued at $363,915 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 14, 2026 disclosing 1,293 shares of Ecolab Inc.. This represents a change in shares of 5.80% 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)
2026-04-03 2026-03-31 13F Ecolab Equities 278865100 1,368 75 5.80 364 7.08 0.1943
2026-01-14 2025-12-31 13F Ecolab Equities 278865100 1,293 35 2.78 339 -1.45 0.1777
2025-10-08 2025-09-30 13F Ecolab Equities 278865100 1,258 25 2.03 345 3.61 0.1758
2025-07-17 2025-06-30 13F Ecolab Equities 278865100 1,233 -27 -2.14 332 4.08 0.1786
2025-04-07 2025-03-31 13F Ecolab Equities 278865100 1,260 10 0.80 319 9.25 0.1765
2025-01-07 2024-12-31 13F Ecolab Equities 278865100 1,250 -167 -11.79 293 -19.11 0.1637
2024-11-12 2024-09-30 13F Ecolab Equities 278865100 1,417 276 24.19 362 33.21 0.1786
2024-08-15 2024-06-30 13F Ecolab Equities 278865100 1,141 -301 -20.87 272 -18.37 0.1397
2024-05-14 2024-03-31 13F Ecolab Equities 278865100 1,442 -281 -16.31 333 -2.64 0.1627
2024-02-14 2023-12-31 13F Ecolab Equities 278865100 1,723 28 1.65 342 18.82 0.1656
2023-11-07 2023-09-30 13F Ecolab Equities 278865100 1,695 360 26.97 287 15.26 0.1494
2023-07-18 2023-06-30 13F Ecolab Equities 278865100 1,335 1,335 249 0.1210
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.