Clean Harbors EVP uses shares to pay taxes

Clean Harbors Inc. executive Charles H. Geer II reported a routine tax-related share disposition.

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Form Type

Rhea-AI Filing Summary

Clean Harbors Inc. executive Charles H. Geer II reported a routine tax-related share disposition. On this Form 4, 40 shares of Common Stock were withheld on July 1, 2026 at $290.74 per share to cover tax liabilities tied to vesting. After this withholding, he directly holds 10,799 shares of Clean Harbors common stock.

Insider Trade Summary

Exercise Price or Tax Liability: 40 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	40	$290.74	$12K

Holdings After Transaction: Common Stock — 10,799 shares (Direct)

Footnotes (1)

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

Key Figures

Shares withheld for taxes: 40 shares Per-share value: $290.74 per share Shares held after transaction: 10,799 shares

3 metrics

Shares withheld for taxes 40 shares Tax-withholding disposition on July 1, 2026

Per-share value $290.74 per share Value applied for tax-withholding shares

Shares held after transaction 10,799 shares Directly held common stock after withholding

Key Terms

tax-withholding disposition, Rule 16b3, Common Stock

3 terms

tax-withholding disposition financial

"transaction_action: "tax-withholding disposition" for 40 shares of Common Stock"

A tax-withholding disposition is an event or transaction—such as selling or transferring securities, exercising options, or receiving compensation—that triggers a requirement to hold back part of the payment and remit it to tax authorities. It matters to investors because it reduces the cash they receive immediately and can change the timing and amount of taxable income, like a cashier taking a portion of your sale proceeds to pay taxes before you get the rest.

Rule 16b3 regulatory

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

Common Stock financial

"security_title: "Common Stock" with shares withheld for taxes"

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.

FAQ

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

What insider transaction did Clean Harbors (CLH) report for Charles H. Geer II?

Clean Harbors reported that EVP, Industrial Services, Charles H. Geer II had 40 shares of common stock withheld to cover taxes on vesting. This was a tax-withholding disposition, not an open-market trade, and reflects routine compensation-related activity.

How many Clean Harbors (CLH) shares were withheld for taxes in this Form 4?

The filing shows 40 shares of Clean Harbors common stock were withheld. These shares were applied to satisfy tax liabilities arising from the vesting of equity awards, in accordance with Rule 16b-3, rather than being sold on the open market.

At what price were the withheld Clean Harbors (CLH) shares valued?

The 40 withheld shares were valued at $290.74 per share. This price is used to determine the value of stock applied toward the executive’s tax liability when restricted shares or similar awards vest under the company’s compensation programs.

How many Clean Harbors (CLH) shares does Charles H. Geer II hold after this transaction?

After the tax-withholding transaction, Charles H. Geer II directly holds 10,799 shares of Clean Harbors common stock. This figure reflects his position following the 40-share withholding related to the vesting of equity compensation on July 1, 2026.

Was this Clean Harbors (CLH) insider transaction an open-market sale or purchase?

This transaction was not an open-market sale or purchase. It is classified as a tax-withholding disposition, where shares are withheld by the company to pay taxes when equity awards vest, a common administrative mechanism under Rule 16b-3.

What does Rule 16b-3 mean in the context of this Clean Harbors (CLH) filing?

Rule 16b-3 allows certain transactions, like tax-withholding on vesting, to be exempt from short-swing profit rules. In this case, shares were withheld to cover Charles H. Geer II’s tax liability when his equity compensation vested, rather than sold in the market.

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

Form 4 Insider Transactions: What Each Field Means →

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Accepted by SEC EDGAR 07/06/2026 - 03:08 PM EDT

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

MASSACHUSETTS

02061

(City)

(State)

(Zip)

UNITED STATES

(Country)

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

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
07/01/2026

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)
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	Code	V	Amount	(A) or (D)	Price		6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
Common Stock	07/01/2026		F		40⁽¹⁾	D	$290.74	10,799	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)
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)	Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares	8. Price of Derivative Security (Instr. 5)		10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)

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	07/06/2026
	** 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)

Source: View Original Filing on SEC EDGAR