Ecolab (NYSE: ECL) EVP Benjamin Clark buys 1,000 common shares

Rhea-AI Filing Summary

Ecolab Inc. executive vice president of global supply chain Benjamin M. Clark bought 1,000 shares of common stock in an open-market transaction. The weighted average purchase price was $263.831 per share, based on multiple trades between $263.800 and $263.840.

After this purchase, Clark directly owns 1,082.581 Ecolab common shares. The trade was executed on June 11, 2026, and reflects a net increase in his direct ownership position.

Insider Trade Summary

Net Buyer: 1,000 shares ($263,831)

Net Buy 1 txn

Insider Clark Benjamin M.

Role EVP - Global Supply Chain

Bought 1,000 shs ($264K)

Type	Security	Shares	Price	Value
Purchase	Common Stock	1,000	$263.831	$264K

Holdings After Transaction: Common Stock — 1,082.581 shares (Direct, null)

Footnotes (1)

1. [object Object]

Key Figures

Shares purchased: 1,000 shares Weighted average price: $263.831 per share Post-transaction holdings: 1,082.581 shares +2 more

5 metrics

Shares purchased 1,000 shares Open-market purchase on June 11, 2026

Weighted average price $263.831 per share Common Stock open-market purchase

Post-transaction holdings 1,082.581 shares Direct ownership after purchase

Price range of trades $263.800–$263.840 Execution range for multiple trades in the purchase

Net buy shares 1,000 shares Net-buy direction in transaction summary

Key Terms

open-market purchase, weighted average purchase price, Common Stock, Form 4

4 terms

open-market purchase financial

"transaction_action: "open-market purchase""

An open-market purchase is when an investor or a company buys shares on a public stock exchange at the going market price, rather than through a private deal. It matters to investors because these purchases change how many shares are available, can push the stock price up or signal confidence from large buyers, and often affect per-share metrics like earnings—think of it like someone buying lots of apples off a grocery shelf, reducing supply and potentially raising the price.

weighted average purchase price financial

"The price reported above reflects the weighted average purchase price."

The weighted average purchase price is the average cost per share you paid across multiple buys, calculated so larger purchases count more than smaller ones. Imagine buying apples at different prices: the overall price you effectively paid depends on how many apples you bought at each price. Investors use it to measure true cost basis, calculate gains or losses, decide when to sell, and manage taxes and portfolio performance.

Common Stock financial

"security_title: "Common Stock""

Common stock represents ownership shares in a company, giving investors a stake in its success and a say in important decisions through voting rights. It is the most common type of stock traded on markets and can provide income through dividends, as well as potential for value growth. For investors, holding common stock means sharing in the company’s profits and risks.

Form 4 regulatory

"INSIDER FILING DATA (Form 4):"

Form 4 is a official document that company insiders, such as executives or major shareholders, file with regulators whenever they buy or sell company shares. It provides transparency about how those with inside knowledge are trading, helping investors see if insiders are confident in the company's prospects or may be selling for personal reasons. This information can influence investor decisions by revealing insiders' perspectives on the company's value.

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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^*

Clark Benjamin M.

(Last) (First) (Middle)

1 ECOLAB PLACE

(Street)

SAINT PAUL MINNESOTA 55102

(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)

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	EVP - Global Supply Chain

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
06/11/2026

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	06/11/2026		P		1,000	A	$263.831(1)	1,082.581	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. This transaction was executed in multiple trades at prices ranging from $263.800 to $263.840, inclusive. The price reported above reflects the weighted average purchase 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.

	/s/ Youhao Dong, as Attorney-in-Fact for Benjamin M. Clark	06/15/2026
	** 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 insider transaction did Ecolab (ECL) report for Benjamin M. Clark?

Ecolab reported that executive vice president Benjamin M. Clark bought 1,000 shares of common stock in an open-market transaction. The purchase increased his direct holdings to 1,082.581 shares following the trade.

At what price did Ecolab (ECL) executive Benjamin M. Clark buy shares?

Benjamin M. Clark bought 1,000 Ecolab common shares at a weighted average price of $263.831 per share. The transaction was executed in multiple trades between $263.800 and $263.840 on the trade date.

How many Ecolab (ECL) shares does Benjamin M. Clark own after the Form 4 transaction?

After the reported purchase, Benjamin M. Clark directly owns 1,082.581 Ecolab common shares. This reflects the addition of 1,000 shares acquired in the open-market transaction disclosed in the Form 4 filing.

Was the Ecolab (ECL) Form 4 transaction by Benjamin M. Clark a buy or a sell?

The Form 4 shows a buy transaction. Benjamin M. Clark executed an open-market purchase of 1,000 Ecolab common shares, classified under transaction code P, which represents a purchase in the open market or a private transaction.

How was the purchase price calculated in the Ecolab (ECL) Form 4 for Benjamin M. Clark?

The reported purchase price of $263.831 per share is a weighted average. A footnote explains the trade was executed in multiple lots with prices ranging from $263.800 to $263.840, resulting in the weighted average price disclosed.