Ecolab (NYSE: ECL) EVP granted 8,661 stock options, reports savings plan units

Rhea-AI Filing Summary

Ecolab Inc. executive stock holdings and option grant disclosed

Ecolab Inc. (ticker ECL) reported a Form 4 for an officer serving as Executive Vice President and President of the Institutional Group. Following the reported transactions, the officer beneficially owns 9,070.38 shares of Ecolab common stock directly and 3,532.48 units in the Ecolab Stock Fund through the Ecolab Savings Plan, which the explanation notes are equivalent to approximately 6,481 shares of common stock as of November 30, 2025.

The filing also shows a new employee stock option grant covering 8,661 shares of Ecolab common stock at an exercise price of $268.515 per share, dated December 3, 2025. These options become exercisable in three annual installments: one-third on each of the first and second anniversaries of the grant date and the remaining shares on the third anniversary, with a final expiration date of December 3, 2035.

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

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Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Cook Gregory B

(Last) (First) (Middle)

1 ECOLAB PLACE

(Street)

ST. PAUL MN 55102

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
ECOLAB INC. [ ECL ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	EVP & PRES - INST GROUP

3. Date of Earliest Transaction (Month/Day/Year)
12/03/2025

4. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Common Stock								9,070.38	D
Common Stock								3,532.48(1)	I	By Ecolab Savings Plan

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares
Employee Stock Option (Right to Buy)	$268.515	12/03/2025		A		8,661		12/03/2026(2)	12/03/2035	Common Stock	8,661	$0	8,661	D

Explanation of Responses:

1. Number of UNITS in the Ecolab Stock Fund of the Ecolab Savings Plan (401(k) Plan) as of November 30, 2025. Includes 16.868 UNITS acquired since the reporting person's last report. (The 3532.480 UNITS are the equivalent of approximately 6,481 shares of the issuer's Common Stock.)

2. The option will be 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.

	/s/ Youhao Dong, as Attorney-in-Fact for Gregory B. Cook	12/05/2025
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
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FAQ

What insider transaction did Ecolab (ECL) report in this Form 4?

The Form 4 reports that an Ecolab Inc. executive received an employee stock option grant for 8,661 shares of common stock at an exercise price of $268.515 per share on December 3, 2025, along with updated disclosures of their existing stock and savings plan holdings.

How many Ecolab (ECL) shares does the reporting officer own after the transaction?

After the reported transaction, the officer beneficially owns 9,070.38 shares of Ecolab common stock directly and 3,532.48 units of the Ecolab Stock Fund in the Ecolab Savings Plan, which the explanation states equal approximately 6,481 shares of common stock as of November 30, 2025.

What are the vesting terms of the new Ecolab (ECL) stock options?

The employee stock option for 8,661 shares granted on December 3, 2025 will be exercisable on a cumulative basis: one-third of the option shares on each of the first and second anniversaries of the grant date and the remaining shares on the third anniversary. The expiration date for these options is December 3, 2035.

What role does the reporting person hold at Ecolab (ECL)?

The reporting person is identified as an Officer of Ecolab Inc., serving as EVP & President – Institutional Group, and is not listed as a director or 10% owner in this filing.

How are the Ecolab Savings Plan units described in the Form 4?

The filing explains that the officer holds 3,532.48 UNITS in the Ecolab Stock Fund of the Ecolab Savings Plan as of November 30, 2025, including 16.868 UNITS acquired since the last report. These 3,532.480 UNITS are described as equivalent to approximately 6,481 shares of Ecolab common stock.

Is the Ecolab (ECL) Form 4 filed by a single reporting person or a group?

The document states that the Form is filed by one reporting person, indicating it reflects the transactions and holdings of a single Ecolab executive rather than a joint or group filing.