Nicholas J. Alfano - 17 Feb 2026 Form 4 Insider Report for ECOLAB INC. (ECL)

Reporting relationship: EVP & PRES - GLOBAL WATER
Issuer ticker: ECL
Reported as of: 17 Feb 2026
Net transaction value: -$1,581,821
SEC form: 4
Accepted by SEC: 18 Feb 2026, 16:40:59 UTC
Prior SEC filing: 05 Dec 2025
Next SEC filing: 20 Feb 2026
Source filing: View source filing
Reporting owner signature: /s/ Corinne Lawson, as Attorney-in-Fact for Nicholas J. Alfano

Key filing fact

Nicholas J. Alfano filed Form 4 for ECOLAB INC. (ECL) on 18 Feb 2026.

Key facts

This page summarizes Nicholas J. Alfano's Form 4 filing for ECOLAB INC. (ECL).
3 reported transactions and 1 derivative row are listed below.
Accepted by SEC: 18 Feb 2026, 16:40.

Change

Previous filing in this sequence was filed on 05 Dec 2025.
Current net transaction value: -$1,581,821.

Research use

This tells you what this filing adds before you inspect full transaction and derivative tables.
You can trace every row back to the original SEC filing document.

Evidence

Filed on Form 4

Ownership activity is grounded in SEC Form 4 disclosures.

View source filing

Reporting Owners (1)

CIK 0001972462 Primary reporting owner

Alfano Nicholas J.

Relationship: EVP & PRES - GLOBAL WATER
Address: 1 ECOLAB PLACE, SAINT PAUL
Signature: /s/ Corinne Lawson, as Attorney-in-Fact for Nicholas J. Alfano
Signature date: 18 Feb 2026

Reported non-derivative transactions

Shares, units, or other non-derivative securities reported in this filing.

ECL transaction

Common Stock

Options Exercise

Transaction value: $1,302,492
Shares: +9,501
Change %: +201%
Price: $137.09
Shares after: 14,223
Date: 17 Feb 2026
Ownership: Direct
Footnotes: F1

ECL transaction

Common Stock

Sale

Transaction value: $2,884,314
Shares: -9,501
Change %: -67%
Price: $303.58
Shares after: 4,722
Date: 17 Feb 2026
Ownership: Direct
Footnotes: F2

ECL holding

Common Stock

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after: 1,481
Date: 17 Feb 2026
Ownership: By Ecolab Savings Plan
Footnotes: F3

Reported derivative securities

Options, warrants, convertible securities, or similar derivative positions disclosed in the filing.

ECL transaction Derivative

Employee Stock Option (Right to Buy)

Options Exercise

Transaction value: $0
Shares: -9,501
Change %: -100%
Price: $0.000000
Shares after: 0
Date: 17 Feb 2026
Ownership: Direct
Underlying class: Common stock
Underlying amount: 9,501
Exercise price: $137.09
Footnotes: F4

^* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 4 footnotes

Footnote F1

The total includes 3.5 shares resulting from automatic dividend reinvestment in transactions exempt pursuant to Rule 16a-11 under Section 16 of the Securities Exchange Act of 1934 since the reporting person's last report.

Footnote F2

This transaction was executed in multiple trades at prices ranging from $303.49 to $303.65, inclusive. The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.

Footnote F3

Number of UNITS in the Ecolab Stock Fund of the Ecolab Savings Plan (401(k) Plan) as of January 31, 2026. Includes 4.002 UNITS acquired since the reporting person's last report. (The 1,481.033 UNITS are the equivalent of approximately 2,715 SHARES of the issuer's Common Stock.)

Footnote F4

Option granted under the Ecolab Inc. 2010 Stock Incentive Plan. The option became exercisable, on a cumulative basis, as to one-third of the option shares (excluding any fractional portion less than one share), on each of the first and second anniversaries of the date of grant and as to the remaining shares on the third anniversary of the date of grant. The date listed in the "Date Exercisable" column is the first anniversary of the date of grant.