Tracy B. McKibben - 25 Feb 2026 Form 4 Insider Report for ECOLAB INC. (ECL)

Role: Director
Signature: /s/ Corinne Lawson, as Attorney-in-Fact for Tracy B. McKibben
Issuer symbol: ECL
Transactions as of: 25 Feb 2026
Net transactions value: -$125,782
Form type: 4
Filing time: 26 Feb 2026, 16:34:36 UTC
Previous filing: 05 Jan 2026
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
McKibben Tracy B	Director	C/O ECOLAB INC., 1 ECOLAB PLACE, ST. PAUL	/s/ Corinne Lawson, as Attorney-in-Fact for Tracy B. McKibben	26 Feb 2026	0001584119

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	ECL	Common Stock	Options Exercise	$264,672	+2,300	+22%	$115.08	12,623	25 Feb 2026	Direct
transaction	ECL	Common Stock	Sale	$390,455	-1,265	-10%	$308.66	11,358	25 Feb 2026	Direct

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Underlying Class	Amount	Exercise Price	Ownership	Footnotes
transaction	ECL	Non-Employee Stock Option (Right to Buy)	Options Exercise	$0	-2,300	-100%	$0.000000	0	25 Feb 2026	Common Stock	2,300	$115.08	Direct	F1

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	The option became exercisable, on a cumulative basis, as to 25% of the option shares (excluding any fractional portion less than one share), on the last day of each of the first, second and third three-month periods following its date of grant and as to the remaining shares on the last day of the fourth three-month period following its date of grant; provided, however, that if a Change in Control of the Company (as that term is defined in the Ecolab Inc. 2001 Non-Employee Director Stock Option and Deferred Compensation Plan) will occur, then the option will become immediately exercisable in full.

Content

The option became exercisable, on a cumulative basis, as to 25% of the option shares (excluding any fractional portion less than one share), on the last day of each of the first, second and third three-month periods following its date of grant and as to the remaining shares on the last day of the fourth three-month period following its date of grant; provided, however, that if a Change in Control of the Company (as that term is defined in the Ecolab Inc. 2001 Non-Employee Director Stock Option and Deferred Compensation Plan) will occur, then the option will become immediately exercisable in full.