Ecolab (NYSE: ECL) Co-COO exercises options, sells 10,000 shares

Rhea-AI Filing Summary

Ecolab Inc. Co-COO – Global Markets Darrell R. Brown reported an option exercise and related share sale. On June 9, 2026, he exercised 10,000 shares of common stock under an employee stock option at $117.73 per share and sold 10,000 shares in an open-market transaction at a weighted average price of $260.887 per share. The sale was executed in multiple trades within a price range of $260.80 to $261.06. After these transactions, Brown directly holds 32,733.364 shares of Ecolab common stock.

Insider Trade Summary

Net Seller: 10,000 shares ($2,608,870)

Net Sell 3 txns

Insider Brown Darrell R

Role Co-COO - Global Markets

Sold 10,000 shs ($2.61M)

Type	Security	Shares	Price	Value
Exercise	Employee Stock Option (Right to Buy)	10,000	$0.00	--
Exercise	Common Stock	10,000	$117.73	$1.18M
Sale	Common Stock	10,000	$260.887	$2.61M

Holdings After Transaction: Employee Stock Option (Right to Buy) — 0 shares (Direct, null); Common Stock — 42,733.364 shares (Direct, null)

Footnotes (1)

1. This transaction was executed in multiple trades at prices ranging from $260.80 to $261.06, 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. 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 grant.

Key Figures

Shares sold: 10,000 shares Weighted average sale price: $260.887 per share Exercise price: $117.73 per share +3 more

6 metrics

Shares sold 10,000 shares Open-market sale on June 9, 2026

Weighted average sale price $260.887 per share Common stock sale on June 9, 2026

Exercise price $117.73 per share Employee Stock Option (Right to Buy) exercised

Shares exercised 10,000 shares Exercise or conversion of derivative security

Shares owned after transaction 32,733.364 shares Direct ownership of Ecolab common stock

Sale price range $260.80–$261.06 per share Multiple trades for 10,000-share sale

Key Terms

open-market sale, Employee Stock Option (Right to Buy), derivative exercise/conversion, weighted average sale price, +1 more

5 terms

open-market sale financial

"transaction_action: "open-market sale" for 10,000 common shares"

An open-market sale is when a shareholder sells existing shares directly on a public exchange to any willing buyer, rather than through a private deal. Think of it like putting goods on a busy market stall where price is set by supply and demand; for investors it matters because such sales increase available supply, can put short-term downward pressure on the stock price, and signal changes in liquidity or investor confidence.

Employee Stock Option (Right to Buy) financial

"security_title: "Employee Stock Option (Right to Buy)" for 10,000 shares"

derivative exercise/conversion financial

"transaction_action: "derivative exercise/conversion" for option exercise"

weighted average sale price financial

"footnote: "The price reported above reflects the weighted average sale price.""

derivative security financial

"transaction_code_description: "Exercise or conversion of derivative security""

A derivative security is a financial contract whose value comes from the price or performance of something else, such as a stock, bond, commodity, or market index. For investors it acts like an insurance policy or a wager: it can be used to protect against losses, lock in prices, or amplify gains and losses, so it can change a portfolio’s risk and potential return without owning the underlying asset directly.

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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^*

Brown Darrell R

(Last) (First) (Middle)

1 ECOLAB PLACE

(Street)

ST. 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)
	Co-COO - Global Markets

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
06/09/2026

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	06/09/2026		M		10,000	A	$117.73	42,733.364	D
Common Stock	06/09/2026		S		10,000	D	$260.887(1)	32,733.364	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
Employee Stock Option (Right to Buy)	$117.73	06/09/2026		M			10,000	12/07/2017(2)	12/07/2026	Common Stock	10,000	$0	0	D

Explanation of Responses:

1. This transaction was executed in multiple trades at prices ranging from $260.80 to $261.06, 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.

2. 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 grant.

	/s/ Youhao Dong, as Attorney-in-Fact for Darrell R. Brown	06/10/2026
	** 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) Co-COO Darrell Brown report?

Darrell Brown reported an option exercise and related share sale involving 10,000 Ecolab shares. He exercised employee stock options at $117.73 per share and sold 10,000 common shares in an open-market transaction at a weighted average price of $260.887 per share.

How many Ecolab (ECL) shares did Darrell Brown sell and at what price?

Darrell Brown sold 10,000 Ecolab common shares in an open-market transaction. The weighted average sale price was $260.887 per share, with individual trades executed in a price range from $260.80 to $261.06 according to the reported Form 4 footnote.

What stock options did Darrell Brown exercise in this Ecolab (ECL) Form 4?

He exercised an Employee Stock Option (Right to Buy) covering 10,000 Ecolab common shares. The option had a conversion or exercise price of $117.73 per share and became exercisable in three annual installments following the original grant date, as described in the footnote.

How many Ecolab (ECL) shares does Darrell Brown own after this transaction?

Following the reported transactions, Darrell Brown directly holds 32,733.364 Ecolab common shares. This figure reflects his ownership after exercising 10,000 options and selling 10,000 shares on June 9, 2026, as detailed in the Form 4 filing data.

Was Darrell Brown’s Ecolab (ECL) stock sale done in a single trade or multiple trades?

The 10,000-share sale was executed in multiple trades, not a single execution. Footnotes state the trades occurred at prices ranging from $260.80 to $261.06, with the Form 4 reporting a weighted average sale price of $260.887 per share for disclosure.