Ecolab Inc.
MX ˙ BMV ˙ US2788651006
SecurityMX:ECL / Ecolab Inc.
InstitutionMariner, LLC
Latest Disclosed Ownership79,539 shares
Latest Disclosed Value $ 21,157,510
Mariner, LLC ownership in ECL / Ecolab Inc.

On May 13, 2026 - Mariner, LLC filed a 13F-HR form disclosing ownership of 79,539 shares of Ecolab Inc. (MX:ECL) valued at $21,157,510 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 79,149 shares of Ecolab Inc.. This represents a change in shares of 0.49% during the quarter.

Mariner, LLC has a history of taking positions in derivatives of the underlying security (ECL) in the form of stock options.

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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Institutional Put/Call Ratios
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In addition to reporting standard equity and debt issues, institutions with more than 100MM assets under management must also disclose their put and call option holdings. Since put options generally indicate negative sentiment, and call options indicate positive sentiment, we can get a sense of the overall institutional sentiment by plotting the ratio of puts to calls. The chart to the right plots the historical put/call ratio for this instrument.

Using Put/Call Ratio as an indicator of investor sentiment overcomes one of the key deficiencies of using total institutional ownership, which is that a significant amount of assets under management are invested passively to track indices. Passively-managed funds do not typically buy options, so the put/call ratio indicator more closely tracks the sentiment of actively-managed funds.

MX:ECL / Ecolab Inc. Historical Put/Call Ratio
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)
2026-05-13 2026-03-31 13F ECOLAB COM 278865100 79,539 390 0.49 21,158 1.78 0.0204
2026-02-13 2025-12-31 13F ECOLAB COM 278865100 79,149 2,646 3.46 20,787 -0.78 0.0247
2025-11-14 2025-09-30 13F ECOLAB COM 278865100 76,503 2,710 3.67 20,951 5.38 0.0271
2025-08-14 2025-06-30 13F ECOLAB COM 278865100 73,793 4,221 6.07 19,881 12.74 0.0287
2025-05-15 2025-03-31 13F ECOLAB COM 278865100 69,572 3,360 5.07 17,636 13.66 0.0293
2025-02-13 2024-12-31 13F ECOLAB COM 278865100 66,212 -1,468 -2.17 15,515 -10.21 0.0261
2024-11-13 2024-09-30 13F ECOLAB COM 278865100 67,680 1,396 2.11 17,279 9.53 0.0307
2024-08-13 2024-06-30 13F ECOLAB COM 278865100 66,284 928 1.42 15,776 4.54 0.0306
2024-05-15 2024-03-31 13F ECOLAB COM 278865100 65,356 -8,452 -11.45 15,091 3.08 0.0312
2024-02-14 2023-12-31 13F ECOLAB COM 278865100 73,808 4,437 6.40 14,640 24.58 0.0347
2023-11-13 2023-09-30 13F ECOLAB COM 278865100 69,371 1,144 1.68 11,751 -7.73 0.0315
2023-08-11 2023-06-30 13F ECOLAB COM 278865100 68,227 584 0.86 12,736 115,681.82 0.0340
2023-05-15 2023-03-31 13F ECOLAB COM 278865100 67,643 -2,810 -3.99 11 -99.89 0.0325
2023-02-14 2022-12-31 13F ECOLAB COM 278865100 70,453 -3,505 -4.74 10,255 -4.00 0.0330
2022-11-10 2022-09-30 13F ECOLAB COM 278865100 73,958 7,150 10.70 10,682 3.99 0.0427
2022-08-15 2022-06-30 13F ECOLAB COM 278865100 66,808 -4,661 -6.52 10,272 -18.60 0.0422
2022-05-13 2022-03-31 13F ECOLAB COM 278865100 71,469 21,644 43.44 12,619 7.97 0.0476
2022-02-14 2021-12-31 13F ECOLAB COM 278865100 49,825 1,925 4.02 11,688 16.96 0.0494
2021-11-15 2021-09-30 13F ECOLAB COM 278865100 47,900 2,681 5.93 9,993 7.29 0.0522
2021-08-24 2021-06-30 13F ECOLAB COM 278865100 45,219 -4,802 -9.60 9,314 -13.02 0.0578
2021-05-07 2021-03-31 13F ECOLAB COM 278865100 50,021 6,192 14.13 10,708 12.92 0.0747
2021-02-16 2020-12-31 13F ECOLAB COM 278865100 43,829 1,288 3.03 9,483 11.55 0.0727
2020-11-13 2020-09-30 13F ECOLAB COM 278865100 42,541 6,816 19.08 8,501 19.61 0.0800
2020-08-14 2020-06-30 13F ECOLAB COM 278865100 35,725 5,715 19.04 7,107 51.86 0.0712
2020-05-14 2020-03-31 13F ECOLAB COM 278865100 30,010 -3,279 -9.85 4,680 -27.15 0.0585
2020-02-13 2019-12-31 13F ECOLAB COM 278865100 33,289 3,307 11.03 6,424 8.18 0.0667
2019-11-13 2019-09-30 13F ECOLAB COM 278865100 29,982 -852 -2.76 5,938 -2.46 0.0710
2019-08-14 2019-06-30 13F ECOLAB COM 278865100 30,834 708 2.35 6,088 14.48 0.0726
2019-05-15 2019-03-31 13F ECOLAB COM 278865100 30,126 -1,322 -4.20 5,318 14.86 0.0758
2019-02-13 2018-12-31 13F ECOLAB COM 278865100 31,448 3,410 12.16 4,630 5.32 0.0824
2018-11-14 2018-09-30 13F ECOLAB COM 278865100 28,038 -5,771 -17.07 4,396 -7.34 0.1130
2018-08-14 2018-06-30 13F ECOLAB COM 278865100 33,809 27,375 425.47 4,744 437.87 0.1345
2018-05-15 2018-03-31 13F ECOLAB COM 278865100 6,434 6,434 -80.97 882 -81.41 0.0316
2018-02-09 2017-12-31 13F ECOLAB COM 278865100 0 -2,020 -100.00 0 -100.00
2017-11-14 2017-09-30 13F ECOLAB COM 278865100 2,020 2,020 260 0.0118
2017-02-14 2016-12-31 13F ECOLAB COM 278865100 0 -1,680 -100.00 0 -100.00
2016-11-14 2016-09-30 13F ECOLAB COM 278865100 1,680 1,680 0.00 204 0.0099
2016-02-16 2015-12-31 13F ECOLAB COM 278865100 0 -2,248 -100.00 0 -100.00
2015-11-16 2015-09-30 13F ECOLAB COM 278865100 2,248 0 0.00 247 -2.76 0.0110
2015-08-17 2015-06-30 13F Ecolab COS 278865100 2,248 2,248 254 0.0118
Disclosed Put Options
File
Date
Effective
Date
Form Security Class ID Opt Avg Share Price Shares ΔShares
(%)
Value
(x1000)
ΔValue
(%)
Prior Allocation
(%)
Allocation
(%)
ΔAllocation
(%)
Cost Basis
(x1000)
Profit
(x1000)
Return
(%)
2018-08-14 2018-06-30 13F ECOLAB COM Put 0 -100.00 0 n/a n/a n/a
2018-05-15 2018-03-31 13F ECOLAB COM Put 3,500 0 n/a n/a n/a
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.