Clean Harbors EVP has 28 shares withheld for tax on vesting

Clean Harbors Inc. reported an insider equity transaction by its Executive Vice President of Industrial Services.

Rhea-AI Filing Summary

Clean Harbors Inc. reported an insider equity transaction by its Executive Vice President of Industrial Services. On 12/15/2025, the officer had 28 shares of common stock withheld at a price of $240.71 per share.

The filing explains this was a payment of tax liability by withholding shares incident to the vesting of previously granted securities, in line with Rule 16b-3. After this tax-related withholding, the executive directly beneficially owns 8,814 shares of Clean Harbors common stock.

Insider Trade Summary

Exercise Price or Tax Liability: 28 shares

Exercise Price or Tax Liability 1 txn

Insider Geer Charles H. II

Role EVP, Industrial Services

Type	Security	Shares	Price	Value
Exercise Price or Tax Liability	Common Stock	28	$240.71	$7K

Holdings After Transaction: Common Stock — 8,814 shares (Direct)

Footnotes (1)

1. F1. Payment of tax liability by withholding of securities incident to vesting of securities in accordance with Rule 16b3.

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What insider transaction did Clean Harbors (CLH) report in this Form 4?

The report shows a Clean Harbors Executive Vice President of Industrial Services had 28 shares of common stock withheld on 12/15/2025 in connection with equity compensation.

What was the price per share for the Clean Harbors (CLH) insider transaction?

The 28 shares of Clean Harbors common stock were withheld at a price of $240.71 per share.

Why were 28 Clean Harbors (CLH) shares withheld from the executive?

The filing states the 28 shares were withheld to pay tax liability incident to the vesting of securities, in accordance with Rule 16b-3.

How many Clean Harbors (CLH) shares does the executive own after this transaction?

Following the reported transaction, the executive directly beneficially owns 8,814 shares of Clean Harbors common stock.

What is the relationship of the reporting person to Clean Harbors (CLH)?

The reporting person is an officer of Clean Harbors, serving as EVP, Industrial Services, and files individually on this Form 4.

AI-generated analysis. How Rhea-AI works. Not financial advice.

Form 4 Insider Transactions: What Each Field Means →

See more from StockTitan in Google Search and AI answers. Adds StockTitan as a preferred source · opens Google

Add on Google Not now

Accepted by SEC EDGAR 12/17/2025 - 08:22 AM EST 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^*

Geer Charles H. II

(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, Industrial Services

3. Date of Earliest Transaction (Month/Day/Year)
12/15/2025

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	12/15/2025		F		28(1)	D	$240.71	8,814	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.

	/s/ Charles H. Geer II	12/17/2025
	** 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.