Ecolab Inc.
US ˙ NYSE ˙ US2788651006

SecurityECL / Ecolab Inc.
InstitutionPittenger & Anderson Inc
Latest Disclosed Ownership28,701 shares
Latest Disclosed Value $ 7,635,041
Pittenger & Anderson Inc reports 54.14% increase in ownership of ECL / Ecolab Inc.

On May 1, 2026 - Pittenger & Anderson Inc filed a 13F-HR form disclosing ownership of 28,701 shares of Ecolab Inc. (US:ECL) valued at $7,635,040 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 2, 2026 disclosing 18,620 shares of Ecolab Inc.. This represents a change in shares of 54.14% during the quarter. The current value of the position is $7,337,985 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)
2026-05-01 2026-03-31 13F ECOLAB COM 278865100 28,701 10,081 54.14 7,635 56.20 0.3038
2026-02-02 2025-12-31 13F ECOLAB COM 278865100 18,620 40 0.22 4,888 -3.93 0.1881
2025-11-03 2025-09-30 13F ECOLAB COM 278865100 18,580 110 0.60 5,088 2.25 0.1866
2025-07-30 2025-06-30 13F ECOLAB COM 278865100 18,470 413 2.29 4,977 8.72 0.1819
2025-05-01 2025-03-31 13F ECOLAB COM 278865100 18,057 405 2.29 4,578 10.66 0.1678
2025-01-31 2024-12-31 13F ECOLAB COM 278865100 17,652 50 0.28 4,136 -7.97 0.1503
2024-10-30 2024-09-30 13F ECOLAB COM 278865100 17,602 100 0.57 4,494 7.90 0.1683
2024-08-09 2024-06-30 13F ECOLAB COM 278865100 17,502 650 3.86 4,165 7.04 0.1712
2024-05-02 2024-03-31 13F ECOLAB COM 278865100 16,852 982 6.19 3,891 23.64 0.1581
2024-02-02 2023-12-31 13F ECOLAB COM 278865100 15,870 15,870 3,148 0.1410
2023-02-10 2022-12-31 13F ECOLAB COM 278865100 0 -150 -100.00 0 -100.00
2022-11-15 2022-09-30 13F ECOLAB COM 278865100 150 0 0.00 22 -4.35 0.0013
2022-07-14 2022-06-30 13F ECOLAB COM 278865100 150 -6,898 -97.87 23 -98.15 0.0013
2022-04-28 2022-03-31 13F ECOLAB COM 278865100 7,048 -26,320 -78.88 1,244 -84.11 0.0610
2022-02-10 2021-12-31 13F ECOLAB COM 278865100 33,368 793 2.43 7,828 15.19 0.3616
2021-11-12 2021-09-30 13F ECOLAB COM 278865100 32,575 -456 -1.38 6,796 -0.10 0.3410
2021-08-13 2021-06-30 13F ECOLAB COM 278865100 33,031 1,151 3.61 6,803 -0.32 0.3485
2021-05-12 2021-03-31 13F ECOLAB COM 278865100 31,880 1,957 6.54 6,825 5.42 0.3681
2021-02-11 2020-12-31 13F ECOLAB COM 278865100 29,923 1,659 5.87 6,474 14.62 0.3672
2020-11-10 2020-09-30 13F ECOLAB COM 278865100 28,264 2,946 11.64 5,648 12.13 0.3607
2020-08-13 2020-06-30 13F ECOLAB COM 278865100 25,318 1,093 4.51 5,037 33.43 0.3544
2020-04-30 2020-03-31 13F ECOLAB COM 278865100 24,225 1,443 6.33 3,775 -14.15 0.3208
2020-02-12 2019-12-31 13F ECOLAB COM 278865100 22,782 395 1.76 4,397 -0.83 0.2941
2019-11-14 2019-09-30 13F ECOLAB COM 278865100 22,387 1,952 9.55 4,434 9.89 0.3197
2019-08-09 2019-06-30 13F ECOLAB COM 278865100 20,435 7,040 52.56 4,035 70.61 0.3019
2019-05-10 2019-03-31 13F ECOLAB COM 278865100 13,395 13,395 2,365 0.1850
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.