Ecolab Inc.
MX ˙ BMV ˙ US2788651006
SecurityMX:ECL / Ecolab Inc.
InstitutionNorth Star Asset Management Inc
Latest Disclosed Ownership80,798 shares
Latest Disclosed Value $ 21,493,809
North Star Asset Management Inc reports 1.08% increase in ownership of ECL / Ecolab Inc.

On May 6, 2026 - North Star Asset Management Inc filed a 13F-HR form disclosing ownership of 80,798 shares of Ecolab Inc. (MX:ECL) valued at $21,493,809 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 9, 2026 disclosing 79,933 shares of Ecolab Inc.. This represents a change in shares of 1.08% 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)
2026-05-06 2026-03-31 13F ECOLAB COM 278865100 80,798 865 1.08 21,494 2.43 0.5593
2026-02-09 2025-12-31 13F ECOLAB COM 278865100 79,933 746 0.94 20,984 -3.24 0.8466
2025-11-10 2025-09-30 13F ECOLAB COM 278865100 79,187 -650 -0.81 21,686 0.81 0.8797
2025-08-12 2025-06-30 13F ECOLAB COM 278865100 79,837 315 0.40 21,511 6.70 0.9098
2025-05-08 2025-03-31 13F ECOLAB COM 278865100 79,522 -225 -0.28 20,160 7.89 0.9198
2025-02-19 2024-12-31 13F ECOLAB COM 278865100 79,747 -196 -0.25 18,686 -8.45 0.8271
2024-11-14 2024-09-30 13F ECOLAB COM 278865100 79,943 329 0.41 20,412 7.72 0.9161
2024-08-05 2024-06-30 13F ECOLAB COM 278865100 79,614 -178 -0.22 18,948 2.85 0.8993
2024-05-08 2024-03-31 13F ECOLAB COM 278865100 79,792 34 0.04 18,424 16.45 0.8700
2024-02-01 2023-12-31 13F ECOLAB COM 278865100 79,758 -56 -0.07 15,820 17.01 0.8093
2023-10-26 2023-09-30 13F ECOLAB COM 278865100 79,814 4,648 6.18 13,520 -3.65 0.7762
2023-08-09 2023-06-30 13F ECOLAB COM 278865100 75,166 554 0.74 14,033 13.62 0.7740
2023-05-10 2023-03-31 13F ECOLAB COM 278865100 74,612 -483 -0.64 12,351 12.99 0.7263
2023-03-06 2022-12-31 13F ECOLAB COM 278865100 75,095 -366 -0.49 10,931 0.29 0.6793
2022-11-08 2022-09-30 13F ECOLAB COM 278865100 75,461 404 0.54 10,898 -5.57 0.7456
2022-07-28 2022-06-30 13F ECOLAB COM 278865100 75,057 1,407 1.91 11,541 -11.25 0.7606
2022-04-29 2022-03-31 13F ECOLAB COM 278865100 73,650 4,983 7.26 13,004 -19.27 0.6829
2022-02-07 2021-12-31 13F ECOLAB COM 278865100 68,667 623 0.92 16,108 13.48 0.8105
2021-10-20 2021-09-30 13F ECOLAB COM 278865100 68,044 7 0.01 14,195 1.30 0.7793
2021-07-30 2021-06-30 13F ECOLAB COM 278865100 68,037 64 0.09 14,013 -3.70 0.7772
2021-04-29 2021-03-31 13F ECOLAB COM 278865100 67,973 968 1.44 14,551 0.37 0.8722
2021-02-16 2020-12-31 13F ECOLAB COM 278865100 67,005 1,283 1.95 14,497 10.38 0.9153
2020-11-02 2020-09-30 13F ECOLAB COM 278865100 65,722 1,785 2.79 13,134 3.25 0.9684
2020-07-28 2020-06-30 13F ECOLAB COM 278865100 63,937 58 0.09 12,720 27.79 1.0100
2020-04-24 2020-03-31 13F ECOLAB COM 278865100 63,879 1,885 3.04 9,954 -16.80 0.9602
2020-02-06 2019-12-31 13F ECOLAB COM 278865100 61,994 325 0.53 11,964 -2.04 0.8594
2019-10-25 2019-09-30 13F ECOLAB COM 278865100 61,669 -634 -1.02 12,213 -0.72 0.9575
2019-08-12 2019-06-30 13F ECOLAB COM 278865100 62,303 -10,099 -13.95 12,301 -3.76 0.9602
2019-04-26 2019-03-31 13F ECOLAB COM 278865100 72,402 -580 -0.79 12,782 18.86 1.0348
2019-01-29 2018-12-31 13F ECOLAB COM 278865100 72,982 672 0.93 10,754 -5.14 1.0181
2018-10-29 2018-09-30 13F ECOLAB COM 278865100 72,310 364 0.51 11,337 12.29 0.9101
2018-08-10 2018-06-30 13F ECOLAB COM 278865100 71,946 546 0.76 10,096 3.16 0.8661
2018-04-27 2018-03-31 13F ECOLAB COM 278865100 71,400 1,202 1.71 9,787 3.91 0.8797
2018-02-01 2017-12-31 13F ECOLAB COM 278865100 70,198 1,477 2.15 9,419 6.57 0.8449
2017-10-25 2017-09-30 13F/A-1 ECOLAB COM 278865100 68,721 1,028 1.52 8,838 -1.65 0.8787
2017-10-25 2017-09-30 13F ECOLAB COM 278865100 66,721 -972 8,362
2017-08-16 2017-06-30 13F ECOLAB COM 278865100 67,693 972 1.46 8,986 7.46 0.9147
2017-05-18 2017-03-31 13F ECOLAB COM 278865100 66,721 723 1.10 8,362 8.09 0.8833
2017-01-10 2016-12-31 13F ECOLAB COM 278865100 65,998 6,089 10.16 7,736 6.09 0.8521
2016-10-05 2016-09-30 13F ECOLAB COM 278865100 59,909 743 1.26 7,292 3.92 0.8220
2016-07-29 2016-06-30 13F/A-1 ECOLAB COM 278865100 59,166 3,387 6.07 7,017 12.80 0.8179
2016-07-28 2016-06-30 13F ECOLAB COM 278865100 55,779 6,221
2016-05-05 2016-03-31 13F ECOLAB COM 278865100 55,779 5,682 11.34 6,221 8.57 0.7279
2016-01-28 2015-12-31 13F ECOLAB COM 278865100 50,097 1,088 2.22 5,730 6.55 0.6885
2015-10-28 2015-09-30 13F ECOLAB COM 278865100 49,009 3,851 8.53 5,378 5.33 0.6699
2015-07-30 2015-06-30 13F ECOLAB COM 278865100 45,158 1,595 3.66 5,106 2.47 0.5801
2015-05-15 2015-03-31 13F ECOLAB COM 278865100 43,563 1,645 3.92 4,983 13.74 0.5644
2015-01-16 2014-12-31 13F ECOLAB COM 278865100 41,918 3,461 9.00 4,381 -0.79 0.5008
2014-10-28 2014-09-30 13F ECOLAB COM 278865100 38,457 -763 -1.95 4,416 1.12 0.5264
2014-07-30 2014-06-30 13F ECOLAB COM 278865100 39,220 -241 -0.61 4,367 2.49 0.5088
2014-04-24 2014-03-31 13F ECOLAB COM 278865100 39,461 1,467 3.86 4,261 7.55 0.5105
2014-02-07 2013-12-31 13F ECOLAB COM 278865100 37,994 3,038 8.69 3,962 14.77 0.4800
2013-10-22 2013-09-30 13F ECOLAB COM 278865100 34,956 3,650 11.66 3,452 29.43 0.4511
2013-08-06 2013-06-30 13F ECOLAB COM 278865100 31,306 31,306 2,667 0.3724
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.