[Form 4] ECOLAB INC. Insider Trading Activity

Rhea-AI Filing Summary

Ecolab Inc. director Michel D. Doukeris reported a compensation-related stock award of 137.82 shares of Ecolab common stock. The award was recorded at a price of $0.00 per share, indicating it was a grant rather than an open-market purchase. Following this grant, Doukeris directly holds 576.26 shares of Ecolab common stock. This total includes 0.81 shares acquired through a dividend reinvestment feature of the Ecolab Inc. 2001 Non-Employee Director Stock Option and Deferred Compensation Plan.

Insider Trade Summary

1 transaction reported

Mixed 1 txn

Insider Doukeris Michel D

Role Director

Type	Security	Shares	Price	Value
Grant/Award	Common Stock	137.82	$0.00	--

Holdings After Transaction: Common Stock — 576.26 shares (Direct)

Footnotes (1)

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Key Figures

Stock award: 137.82 shares Award price: $0.00 per share Total holdings after transaction: 576.26 shares +1 more

4 metrics

Stock award 137.82 shares Common stock grant to director Michel D. Doukeris

Award price $0.00 per share Indicates compensation-related grant, not open-market purchase

Total holdings after transaction 576.26 shares Direct Ecolab common stock held by Michel D. Doukeris after grant

Dividend reinvestment shares 0.81 shares Acquired via dividend reinvestment feature of director plan

Key Terms

dividend reinvestment, grant, award, or other acquisition, Non-Employee Director Stock Option and Deferred Compensation Plan

3 terms

dividend reinvestment financial

"Includes 0.81 shares acquired pursuant to a dividend reinvestment feature"

Dividend reinvestment is when the money earned from a company's profit sharing, called dividends, is automatically used to buy more shares of that company instead of being received as cash. This process helps investors grow their holdings over time without extra effort, much like using earned interest to buy more of a savings account. It encourages long-term investment growth by continuously increasing the amount of shares owned.

grant, award, or other acquisition financial

"transaction_code_description": "Grant, award, or other acquisition"

Non-Employee Director Stock Option and Deferred Compensation Plan financial

"feature of the Ecolab Inc. 2001 Non-Employee Director Stock Option and Deferred Compensation Plan"

Form 4 Insider Transactions: What Each Field Means →

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

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

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^*

Doukeris Michel D

(Last) (First) (Middle)

C/O ECOLAB INC.

1 ECOLAB PLACE

(Street)

ST. PAUL MINNESOTA 55413

(City) (State) (Zip)

UNITED STATES

(Country)

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

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

X	Director		10% Owner
	Officer (give title below)		Other (specify below)

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
03/31/2026

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

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

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

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	03/31/2026		A		137.82	A	$0	576.26(1)	D

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

Explanation of Responses:

1. Includes 0.81 shares acquired pursuant to a dividend reinvestment feature of the Ecolab Inc. 2001 Non-Employee Director Stock Option and Deferred Compensation Plan.

	/s/ Corinne Lawson, as Attorney-in-Fact for Michel D. Doukeris	04/02/2026
	** 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.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 4: SEC 1474 (03-26)

FAQ

What does the latest ECL Form 4 filing report for Michel D. Doukeris?

The Form 4 shows director Michel D. Doukeris received a stock grant of 137.82 Ecolab common shares. This was a compensation-related award at $0.00 per share, increasing his direct holdings to 576.26 shares, including a small amount from dividend reinvestment.

How many Ecolab (ECL) shares were granted to Michel D. Doukeris?

Michel D. Doukeris was granted 137.82 shares of Ecolab common stock. The shares were awarded at $0.00 per share as a grant or award, not bought on the open market, and form part of his overall director compensation package.

Is the ECL Form 4 transaction an open-market purchase or a stock award?

The transaction is a stock award, not an open-market purchase. The Form 4 lists a grant or award acquisition of 137.82 Ecolab common shares at $0.00 per share, indicating compensation rather than a discretionary buy in the market.

How many Ecolab (ECL) shares does Michel D. Doukeris hold after this award?

After the reported award, Michel D. Doukeris directly holds 576.26 shares of Ecolab common stock. This total includes the newly granted 137.82 shares and 0.81 shares previously acquired through a dividend reinvestment feature under a company director plan.

What is the dividend reinvestment feature mentioned in the ECL Form 4 footnote?

The footnote explains that 0.81 of Michel D. Doukeris’s Ecolab shares were acquired via a dividend reinvestment feature. Under this feature, cash dividends are automatically used to buy fractional Ecolab shares in the 2001 Non-Employee Director Stock Option and Deferred Compensation Plan.