Clean Harbors (CLH) EVP/CIO Gabriel Sharon sells 3,540 shares in open market

Rhea-AI Filing Summary

Clean Harbors Inc. executive Gabriel M. Sharon, EVP/CIO (CHESI), reported an open-market sale of 3,540 shares of Clean Harbors common stock. The transaction took place on February 20, 2026 at an average price of $282.07 per share. After this sale, Sharon directly owns 23,193 shares of Clean Harbors common stock.

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

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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^*

Gabriel Sharon M.

(Last) (First) (Middle)

42 LONGWATER DRIVE

(Street)

NORWELL MA 02061

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
CLEAN HARBORS INC [ CLH ]

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

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	EVP/CIO (CHESI)

3. Date of Earliest Transaction (Month/Day/Year)
02/20/2026

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	02/20/2026		S		3,540	D	$282.07	23,193	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:

	/s/ Sharon M. Gabriel	02/20/2026
	** 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.

FAQ

What insider transaction did Clean Harbors (CLH) report for Gabriel M. Sharon?

Clean Harbors reported that EVP/CIO (CHESI) Gabriel M. Sharon sold 3,540 shares of common stock. The transaction was an open-market sale, reflecting activity by a senior executive rather than a routine compensation grant or award.

On what date did Gabriel M. Sharon sell Clean Harbors (CLH) shares and at what price?

Gabriel M. Sharon sold Clean Harbors common stock on February 20, 2026. The Form 4 shows an average sale price of $282.07 per share, indicating the trade was executed as an open-market sale at that price level.

How many Clean Harbors (CLH) shares does Gabriel M. Sharon hold after this Form 4 sale?

Following the reported sale, Gabriel M. Sharon directly owns 23,193 shares of Clean Harbors common stock. This post-transaction balance reflects his remaining direct equity stake as disclosed in the Form 4 insider ownership table.

What transaction code and type are shown in the Clean Harbors (CLH) Form 4 filing?

The transaction is coded S, described as a sale in open market or private transaction. It is classified as a non-derivative transaction involving common stock, indicating a straightforward share sale rather than an option or other derivative exercise.

Is Gabriel M. Sharon’s ownership in Clean Harbors (CLH) direct or indirect after the sale?

The Form 4 lists the nature of ownership as direct, with the ownership code D. This means the 23,193 shares reported after the transaction are held directly by Gabriel M. Sharon, not through a trust, partnership, or other entity.