Transaction Details

Footnotes

This transaction was executed in multiple trades at prices ranging from $260.905 to $261.540, 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. | This transaction was executed in multiple trades at prices ranging from $262.020 to $262.550, 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 October 31, 2025. Includes 29.308 UNITS acquired since the reporting person's last report. (The 1,680.350 UNITS are the equivalent of approximately 3,083 SHARES of the issuer's Common Stock.) | 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 represents the first anniversary date of the date of grant.