Clean Harbors CFO reports share dispositions

Clean Harbors EVP and CFO Eric J. Dugas reported two non-market share dispositions tied to equity compensation.

Rhea-AI Filing Summary

Clean Harbors EVP and CFO Eric J. Dugas reported two non-market share dispositions tied to equity compensation. On 2026-03-13, 630 shares of common stock were withheld at $288.93 per share to cover tax obligations upon vesting, as described in a footnote. On the same date, 1,324 shares of restricted stock were forfeited back to the company at $0.00 because performance targets under its Long Term Equity Incentive Program were not achieved. After these entries, he directly holds 13,979 common shares.

Insights

Equity compensation and governance analyst

Routine equity-comp adjustments with no open-market trading signal.

The transactions reported by Clean Harbors EVP and CFO Eric J. Dugas reflect equity compensation mechanics rather than discretionary trading. One entry withholds 630 shares at $288.93 per share to satisfy tax liabilities upon vesting, which is a standard practice.

The second entry records the forfeiture of 1,324 restricted shares back to the company because performance targets under the Long Term Equity Incentive Program were not reached. This shows pay is tied to performance outcomes. No open-market purchases or sales were reported, and Dugas continues to hold 13,979 common shares directly.

Insider Trade Summary

2 transactions reported

Mixed 2 txns

Insider Dugas Eric J.

Role EVP CHIEF FINANCIAL OFFICER

Type	Security	Shares	Price	Value
Exercise Price or Tax Liability	Common Stock	630	$288.93	$182K
Disposition	Common Stock	1,324	$0.00	$0.00

Holdings After Transaction: Common Stock — 13,979 shares (Direct)

Footnotes (2)

1. F1. Payment of tax liability by withholding of securities incident to vesting of securities in accordance with Rule 16b3.
2. F2. Shares of restricted stock forfeited due to the Company not achieving performance targets under its Long Term Equity Incentive Program.

FAQ

What did Clean Harbors (CLH) CFO report in this Form 4 filing?

The EVP and CFO, Eric J. Dugas, reported two non-market share dispositions. One covered tax withholding on vested stock, and the other recorded forfeiture of performance-based restricted shares, reflecting routine equity compensation adjustments rather than open-market trading activity.

How many Clean Harbors shares were used for tax withholding by the CFO?

Eric J. Dugas had 630 Clean Harbors common shares withheld to cover tax liabilities. The withholding occurred at a price of $288.93 per share and was tied to the vesting of equity awards, consistent with standard compensation and tax practices for senior executives.

Why did the Clean Harbors CFO forfeit restricted stock in this report?

The filing states that 1,324 shares of restricted stock were forfeited because the company did not achieve performance targets. These shares were granted under Clean Harbors’ Long Term Equity Incentive Program and were returned to the issuer at zero value when conditions were not met.

Did the Clean Harbors CFO buy or sell shares on the open market?

No open-market purchases or sales were reported. The Form 4 shows a tax-withholding disposition and a forfeiture of restricted stock to the issuer, both tied to compensation mechanics, rather than voluntary trading decisions in the public market by the executive.

How many Clean Harbors shares does the CFO hold after these transactions?

Following the reported tax withholding and restricted stock forfeiture, Eric J. Dugas directly holds 13,979 shares of Clean Harbors common stock. This remaining position is disclosed in the Form 4 as the total direct ownership after the reported transactions.

What do the transaction codes F and D mean in the Clean Harbors Form 4?

Code F represents payment of tax liability by delivering or withholding securities, while code D indicates a disposition to the issuer. In this filing, F applies to tax withholding on vested awards, and D applies to forfeited performance-based restricted shares returned to Clean Harbors.

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Accepted by SEC EDGAR 03/17/2026 - 03:09 PM Learn about SEC filing dates

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^*

Dugas Eric J.

(Last) (First) (Middle)

C/O CLEAN HARBORS, INC.

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 CHIEF FINANCIAL OFFICER

3. Date of Earliest Transaction (Month/Day/Year)
03/13/2026

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	03/13/2026		F		630(1)	D	$288.93	15,303	D
Common Stock	03/13/2026		D		1,324(2)	D	$0	13,979	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. Payment of tax liability by withholding of securities incident to vesting of securities in accordance with Rule 16b3.

2. Shares of restricted stock forfeited due to the Company not achieving performance targets under its Long Term Equity Incentive Program.

	/s/ Eric J. Dugas	03/17/2026
	** 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.
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