Ecolab Inc.
US ˙ NYSE ˙ US2788651006

SecurityECL / Ecolab Inc.
InstitutionWaldron Private Wealth LLC
Latest Disclosed Ownership801 shares
Latest Disclosed Value $ 213,080
Waldron Private Wealth LLC reports 4.30% increase in ownership of ECL / Ecolab Inc.

On April 10, 2026 - Waldron Private Wealth LLC filed a 13F-HR form disclosing ownership of 801 shares of Ecolab Inc. (US:ECL) valued at $213,082 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 14, 2026 disclosing 768 shares of Ecolab Inc.. This represents a change in shares of 4.30% during the quarter. The current value of the position is $204,792 USD.

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)
2026-04-10 2026-03-31 13F ECOLAB COM 278865100 801 33 4.30 213 5.97 0.0083
2026-01-14 2025-12-31 13F ECOLAB COM 278865100 768 -9 -1.16 202 -5.63 0.0080
2025-10-30 2025-09-30 13F ECOLAB COM 278865100 777 -94 -10.79 213 -9.36 0.0086
2025-07-31 2025-06-30 13F ECOLAB COM 278865100 871 -99 -10.21 235 -4.47 0.0103
2025-05-08 2025-03-31 13F ECOLAB COM 278865100 970 -1,664 -63.17 247 -60.13 0.0116
2025-01-24 2024-12-31 13F ECOLAB COM 278865100 2,634 13 0.50 617 -7.77 0.0248
2024-10-21 2024-09-30 13F ECOLAB COM 278865100 2,621 378 16.85 669 25.05 0.0278
2024-07-31 2024-06-30 13F ECOLAB INC COM COM 278865100 2,243 18 0.81 535 3.88 0.0239
2024-05-09 2024-03-31 13F ECOLAB INC COM COM 278865100 2,225 166 8.06 515 25.92 0.0232
2024-08-29 2023-12-31 13F/A-1 ECOLAB INC COM COM 278865100 2,059 67 3.36 410 21.01 0.0195
2024-01-30 2023-12-31 13F ECOLAB INC COM COM 278865100 2,059 67 0 0.0195
2024-08-29 2023-09-30 13F/A-1 ECOLAB INC COM COM 278865100 1,992 -60 -2.92 339 -11.98 0.0176
2023-10-26 2023-09-30 13F ECOLAB INC COM COM 278865100 1,992 -60 0 0.0176
2024-08-29 2023-06-30 13F/A-1 ECOLAB INC COM COM 278865100 2,052 -408 -16.59 384 -5.88 0.0192
2023-08-07 2023-06-30 13F ECOLAB INC COM COM 278865100 2,052 -408 0 0.0192
2024-08-29 2023-03-31 13F/A-1 ECOLAB INC COM COM 278865100 2,460 366 17.48 409 0.0199
2023-05-02 2023-03-31 13F ECOLAB INC COM COM 278865100 2,460 366 0 0.0199
2023-02-08 2022-12-31 13F ECOLAB INC COM COM 278865100 2,094 0 0.00 0 -100.00 0.0188
2022-11-14 2022-09-30 13F ECOLAB INC COM COM 278865100 2,094 -85 -3.90 303 -9.82 0.0188
2022-08-03 2022-06-30 13F ECOLAB INC COM COM 278865100 2,179 -353 -13.94 336 -25.00 0.0188
2022-05-04 2022-03-31 13F ECOLAB INC COM COM 278865100 2,532 -188 -6.91 448 -29.89 0.0230
2022-02-02 2021-12-31 13F ECOLAB INC COM COM 278865100 2,720 6 0.22 639 12.70 0.0315
2021-11-02 2021-09-30 13F ECOLAB INC COM COM 278865100 2,714 407 17.64 567 19.12 0.0330
2021-08-06 2021-06-30 13F ECOLAB INC COM COM 278865100 2,307 -2 -0.09 476 -3.84 0.0304
2021-05-11 2021-03-31 13F ECOLAB INC COM COM 278865100 2,309 51 2.26 495 1.23 0.0344
2021-02-12 2020-12-31 13F ECOLAB INC COM COM 278865100 2,258 -185 -7.57 489 0.20 0.0364
2020-11-13 2020-09-30 13F ECOLAB INC COM COM 278865100 2,443 229 10.34 488 10.66 0.0417
2020-08-11 2020-06-30 13F ECOLAB INC COM COM 278865100 2,214 700 46.24 441 86.86 0.0390
2020-05-05 2020-03-31 13F ECOLAB INC COM COM 278865100 1,514 -26 -1.69 236 -20.54 0.0251
2020-02-07 2019-12-31 13F ECOLAB INC COM COM 278865100 1,540 0 0.00 297 -2.62 0.0265
2019-11-06 2019-09-30 13F ECOLAB INC COM COM 278865100 1,540 26 1.72 305 2.01 0.0311
2019-07-31 2019-06-30 13F ECOLAB INC COM COM 278865100 1,514 -203 -11.82 299 -1.32 0.0318
2019-05-01 2019-03-31 13F ECOLAB INC COM COM 278865100 1,717 234 15.78 303 38.99 0.0341
2019-02-13 2018-12-31 13F Ecolab COM 278865100 1,483 1,483 218 0.0314
2015-02-13 2014-12-31 13F Ecolab COM 278865100 0 -2,587 -100.00 0 -100.00
2014-11-13 2014-09-30 13F Ecolab COM 278865100 2,587 -309 -10.67 297 -7.76 0.1411
2014-08-13 2014-06-30 13F Ecolab COM 278865100 2,896 -82 -2.75 322 -99.90 0.1487
2014-05-13 2014-03-31 13F Ecolab COM 278865100 2,978 646 27.70 321,594 132,243.21 0.1565
2014-02-04 2013-12-31 13F Ecolab COM 278865100 2,332 2,332 243 0.1108
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.