Ecolab Inc.
MX ˙ BMV ˙ US2788651006
SecurityMX:ECL / Ecolab Inc.
InstitutionKing Luther Capital Management Corp
Latest Disclosed Ownership914,704 shares
Latest Disclosed Value $ 243,329,558
King Luther Capital Management Corp reports 1.97% decrease in ownership of ECL / Ecolab Inc.

On May 8, 2026 - King Luther Capital Management Corp filed a 13F-HR form disclosing ownership of 914,704 shares of Ecolab Inc. (MX:ECL) valued at $243,329,558 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 9, 2026 disclosing 933,077 shares of Ecolab Inc.. This represents a change in shares of -1.97% 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)
2026-05-08 2026-03-31 13F ECOLAB COM 278865100 914,704 -18,373 -1.97 243,330 -0.66 1.0512
2026-02-09 2025-12-31 13F ECOLAB COM 278865100 933,077 6,341 0.68 244,951 -3.48 0.9962
2025-11-07 2025-09-30 13F ECOLAB COM 278865100 926,736 18,618 2.05 253,796 3.72 1.0455
2025-08-07 2025-06-30 13F ECOLAB COM 278865100 908,118 -6,391 -0.70 244,683 5.54 1.0621
2025-05-12 2025-03-31 13F ECOLAB COM 278865100 914,509 -2,138 -0.23 231,846 7.94 1.0705
2025-02-07 2024-12-31 13F ECOLAB COM 278865100 916,647 12,016 1.33 214,789 -7.01 0.9295
2024-11-08 2024-09-30 13F ECOLAB COM 278865100 904,631 7,264 0.81 230,979 8.15 0.9914
2024-08-12 2024-06-30 13F ECOLAB COM 278865100 897,367 31,655 3.66 213,573 6.84 0.9625
2024-05-14 2024-03-31 13F ECOLAB COM 278865100 865,712 193,872 28.86 199,893 50.00 0.9016
2024-02-09 2023-12-31 13F ECOLAB COM 278865100 671,840 184,396 37.83 133,259 61.38 0.6407
2023-11-13 2023-09-30 13F ECOLAB COM 278865100 487,444 17,503 3.72 82,573 -5.88 0.4287
2023-08-10 2023-06-30 13F ECOLAB COM 278865100 469,941 -16,961 -3.48 87,733 8.86 0.4359
2023-05-11 2023-03-31 13F ECOLAB COM 278865100 486,902 -315,816 -39.34 80,597 -31.02 0.4259
2023-02-13 2022-12-31 13F ECOLAB COM 278865100 802,718 -198,894 -19.86 116,844 -19.23 0.6406
2022-11-10 2022-09-30 13F ECOLAB COM 278865100 1,001,612 -6,255 -0.62 144,653 -6.66 0.8636
2022-08-11 2022-06-30 13F ECOLAB COM 278865100 1,007,867 8,601 0.86 154,970 -12.16 0.8671
2022-05-11 2022-03-31 13F ECOLAB COM 278865100 999,266 2,669 0.27 176,430 -24.54 0.8607
2022-02-14 2021-12-31 13F ECOLAB COM 278865100 996,597 -5,399 -0.54 233,792 11.84 1.0579
2021-11-10 2021-09-30 13F ECOLAB COM 278865100 1,001,996 -2,328 -0.23 209,036 1.05 1.0273
2021-08-13 2021-06-30 13F ECOLAB COM 278865100 1,004,324 -244 -0.02 206,861 -3.81 1.0111
2021-05-12 2021-03-31 13F ECOLAB COM 278865100 1,004,568 3,293 0.33 215,048 -0.73 1.1547
2021-02-10 2020-12-31 13F ECOLAB COM 278865100 1,001,275 45,792 4.79 216,636 13.46 1.2191
2020-11-12 2020-09-30 13F ECOLAB COM 278865100 955,483 -1,157 -0.12 190,944 0.33 1.2053
2020-08-12 2020-06-30 13F ECOLAB COM 278865100 956,640 -36,465 -3.67 190,324 22.98 1.3200
2020-05-13 2020-03-31 13F ECOLAB COM 278865100 993,105 -29,826 -2.92 154,755 -21.61 1.3400
2020-02-12 2019-12-31 13F ECOLAB COM 278865100 1,022,931 11,989 1.19 197,415 -1.39 1.3197
2019-11-12 2019-09-30 13F ECOLAB COM 278865100 1,010,942 766 0.08 200,207 0.38 1.4567
2019-08-12 2019-06-30 13F ECOLAB COM 278865100 1,010,176 17,613 1.77 199,449 13.82 1.4553
2019-05-10 2019-03-31 13F ECOLAB COM 278865100 992,563 126,542 14.61 175,227 37.32 1.3401
2019-02-12 2018-12-31 13F ECOLAB COM 278865100 866,021 -16,635 -1.88 127,608 -7.79 1.1352
2018-11-13 2018-09-30 13F ECOLAB COM 278865100 882,656 317 0.04 138,383 11.76 1.0446
2018-08-13 2018-06-30 13F ECOLAB COM 278865100 882,339 6,636 0.76 123,819 3.15 1.0129
2018-05-08 2018-03-31 13F ECOLAB COM 278865100 875,703 37,192 4.44 120,033 6.69 1.0041
2018-02-12 2017-12-31 13F ECOLAB COM 278865100 838,511 17,689 2.16 112,511 6.58 0.9201
2017-11-13 2017-09-30 13F ECOLAB COM 278865100 820,822 3,543 0.43 105,566 -2.70 0.9246
2017-08-10 2017-06-30 13F ECOLAB COM 278865100 817,279 3,725 0.46 108,494 6.40 0.9812
2017-05-12 2017-03-31 13F ECOLAB COM 278865100 813,554 22,480 2.84 101,971 9.97 0.9376
2017-02-10 2016-12-31 13F ECOLAB COM 278865100 791,074 34,165 4.51 92,730 0.65 0.8821
2016-11-10 2016-09-30 13F ECOLAB COM 278865100 756,909 38,383 5.34 92,131 8.11 0.8997
2016-08-11 2016-06-30 13F ECOLAB COM 278865100 718,526 172,368 31.56 85,217 39.91 0.8341
2016-05-12 2016-03-31 13F ECOLAB COM 278865100 546,158 128,769 30.85 60,908 27.58 0.6051
2016-02-12 2015-12-31 13F/A-1 ECOLAB COM 278865100 417,389 50,879 13.88 47,741 18.72 0.4476
2016-02-11 2015-12-31 13F ECOLAB COM 278865100 417,389 50,879 47,741 0.4476
2015-11-13 2015-09-30 13F ECOLAB COM 278865100 366,510 358,335 4,383.30 40,213 4,252.06 0.3902
2015-08-11 2015-06-30 13F ECOLAB COM 278865100 8,175 0 0.00 924 -1.18 0.0080
2015-05-14 2015-03-31 13F ECOLAB COM 278865100 8,175 0 0.00 935 9.48 0.0078
2015-02-11 2014-12-31 13F ECOLAB COM 278865100 8,175 0 0.00 854 -9.05 0.0069
2014-11-12 2014-09-30 13F ECOLAB COM 278865100 8,175 0 0.00 939 3.19 0.0077
2014-08-13 2014-06-30 13F ECOLAB COM 278865100 8,175 8,175 910 0.0072
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.