Transaction Details

Footnotes

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. | 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. | 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.) | 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.