Ecolab Inc.
MX ˙ BMV ˙ US2788651006
SecurityMX:ECL / Ecolab Inc.
InstitutionAssenagon Asset Management S.A.
Latest Disclosed Ownership172,799 shares
Latest Disclosed Value $ 45,967,990
Assenagon Asset Management S.A. reports 1,285.27% increase in ownership of ECL / Ecolab Inc.

On April 20, 2026 - Assenagon Asset Management S.A. filed a 13F-HR form disclosing ownership of 172,799 shares of Ecolab Inc. (MX:ECL) valued at $45,967,990 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 9, 2026 disclosing 12,474 shares of Ecolab Inc.. This represents a change in shares of 1,285.27% 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)
2026-04-20 2026-03-31 13F ECOLAB COM 278865100 172,799 160,325 1,285.27 45,968 1,304.00 0.0698
2026-01-09 2025-12-31 13F ECOLAB COM 278865100 12,474 -504,943 -97.59 3,275 -97.69 0.0045
2025-10-07 2025-09-30 13F ECOLAB COM 278865100 517,417 144,702 38.82 141,700 41.10 0.1938
2025-07-11 2025-06-30 13F ECOLAB COM 278865100 372,715 160,767 75.85 100,424 86.89 0.1491
2025-04-15 2025-03-31 13F ECOLAB COM 278865100 211,948 194,910 1,143.97 53,733 1,246.02 0.0896
2025-01-14 2024-12-31 13F ECOLAB COM 278865100 17,038 -1,838 -9.74 3,992 -17.16 0.0064
2024-10-23 2024-09-30 13F ECOLAB COM 278865100 18,876 8,068 74.65 4,820 87.36 0.0089
2024-07-18 2024-06-30 13F ECOLAB COM 278865100 10,808 -241,975 -95.72 2,572 -95.59 0.0057
2024-04-24 2024-03-31 13F ECOLAB COM 278865100 252,783 232,282 1,133.03 58,368 1,335.49 0.1382
2024-01-17 2023-12-31 13F ECOLAB COM 278865100 20,501 10,317 101.31 4,066 135.71 0.0108
2023-11-06 2023-09-30 13F ECOLAB COM 278865100 10,184 -3,917 -27.78 1,725 -34.46 0.0053
2023-07-25 2023-06-30 13F ECOLAB COM 278865100 14,101 -40,752 -74.29 2,633 -71.01 0.0091
2023-04-18 2023-03-31 13F ECOLAB COM 278865100 54,853 44,460 427.79 9,080 907,800.00 0.0322
2023-01-12 2022-12-31 13F ECOLAB COM 278865100 10,393 582 5.93 2 -99.93 0.0055
2022-10-27 2022-09-30 13F ECOLAB COM 278865100 9,811 -82,561 -89.38 1,417 -90.02 0.0054
2022-07-27 2022-06-30 13F ECOLAB COM 278865100 92,372 13,312 16.84 14,203 1.75 0.0526
2022-04-25 2022-03-31 13F ECOLAB COM 278865100 79,060 7,602 10.64 13,959 -16.73 0.0388
2022-02-01 2021-12-31 13F ECOLAB COM 278865100 71,458 30,140 72.95 16,763 94.47 0.0486
2021-10-19 2021-09-30 13F ECOLAB COM 278865100 41,318 -16,029 -27.95 8,620 -27.02 0.0276
2021-07-15 2021-06-30 13F ECOLAB COM 278865100 57,347 18,094 46.10 11,812 40.57 0.0401
2021-04-26 2021-03-31 13F ECOLAB COM 278865100 39,253 32,484 479.89 8,403 473.58 0.0341
2021-02-01 2020-12-31 13F ECOLAB COM 278865100 6,769 3,265 93.18 1,465 109.29 0.0064
2020-10-07 2020-09-30 13F ECOLAB COM 278865100 3,504 -5,183 -59.66 700 -59.49 0.0039
2020-07-21 2020-06-30 13F ECOLAB COM 278865100 8,687 5,189 148.34 1,728 217.06 0.0111
2020-04-17 2020-03-31 13F ECOLAB COM 278865100 3,498 -12,233 -77.76 545 -82.05 0.0044
2020-01-17 2019-12-31 13F ECOLAB COM 278865100 15,731 3,819 32.06 3,036 28.70 0.0191
2019-10-16 2019-09-30 13F ECOLAB COM 278865100 11,912 454 3.96 2,359 4.29 0.0158
2019-08-12 2019-06-30 13F ECOLAB COM 278865100 11,458 -30,496 -72.69 2,262 -69.46 0.0170
2019-04-26 2019-03-31 13F ECOLAB COM 278865100 41,954 26,008 163.10 7,407 215.19 0.0695
2019-01-23 2018-12-31 13F ECOLAB COM 278865100 15,946 -15,179 -48.77 2,350 -51.84 0.0266
2018-10-29 2018-09-30 13F ECOLAB COM 278865100 31,125 31,125 4,880 0.0482
2018-07-17 2018-06-30 13F ECOLAB COM 278865100 0 -8,798 -100.00 0 -100.00
2018-04-30 2018-03-31 13F ECOLAB COM 278865100 8,798 225 2.62 1,206 4.87 0.0157
2018-01-25 2017-12-31 13F ECOLAB COM 278865100 8,573 3,298 62.52 1,150 69.62 0.0118
2017-10-18 2017-09-30 13F ECOLAB COM 278865100 5,275 5,275 678 0.0063
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.