Director Lauren States receives 652-share equity award at CLEAN HARBORS (CLH)

Rhea-AI Filing Summary

States Lauren reported acquisition or exercise transactions in this Form 4 filing.

CLEAN HARBORS INC director Lauren States reported an award of 652 shares of common stock, received as restricted stock with no purchase price. The award vests 100% on the date of the next annual meeting of shareholders. Following this grant, States directly holds 12,148 common shares.

Insider Trade Summary

1 transaction reported

Mixed 1 txn

Insider States Lauren

Role null

Type	Security	Shares	Price	Value
Grant/Award	Common Stock	652	$0.00	--

Holdings After Transaction: Common Stock — 12,148 shares (Direct, null)

Footnotes (1)

1. [object Object]

Key Figures

Restricted stock award: 652 shares Grant price: $0.00 per share Shares held after grant: 12,148 shares

3 metrics

Restricted stock award 652 shares Grant to non-employee director on 2026-05-20

Grant price $0.00 per share Equity compensation, not market purchase

Shares held after grant 12,148 shares Total direct holdings following the award

Key Terms

restricted stock, non-employee director, annual meeting of shareholders

3 terms

restricted stock financial

"Award of restricted stock to non-employee director vesting 100%"

Shares granted to an individual that carry limits on transfer or sale until certain conditions are met, such as staying with the company for a set time or hitting performance targets. Think of them as a locked gift that gradually opens; for investors they matter because they affect how many shares may enter the market later, signal management incentives and potential dilution, and reveal confidence in future company performance.

non-employee director financial

"Award of restricted stock to non-employee director vesting 100%"

annual meeting of shareholders financial

"vesting 100% upon the date of the next annual meeting of shareholders"

A yearly gathering where a company’s owners (shareholders) vote on key items like electing the board, approving executive pay, and ratifying auditors, and receive updates on performance and strategy. Think of it as an annual town hall for owners: it matters to investors because outcomes and disclosures can affect leadership, corporate direction, dividend and governance policies, and therefore the company’s risk and potential return.

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^*

States Lauren

(Last) (First) (Middle)

16 WILMONT AVENUE

(Street)

WHITE PLAINS NEW YORK 10605

(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)

X	Director		10% Owner
	Officer (give title below)		Other (specify below)

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
05/20/2026

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	05/20/2026		A		652(1)	A	$0	12,148	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. Award of restricted stock to non-employee director vesting 100% upon the date of the next annual meeting of shareholders.

	/s/ Lauren States	05/22/2026
	** 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 CLEAN HARBORS (CLH) director Lauren States report?

Lauren States reported receiving 652 shares of CLEAN HARBORS common stock. The shares were granted as restricted stock, not bought on the market, and represent additional equity compensation rather than an open-market purchase or sale.

At what price were the CLEAN HARBORS (CLH) shares granted to Lauren States?

The 652 CLEAN HARBORS shares were granted at a reported price of $0.00 per share. This reflects a typical equity award structure, where restricted stock is granted as compensation instead of being purchased in a cash transaction.

How many CLEAN HARBORS (CLH) shares does Lauren States hold after this Form 4?

After the restricted stock award, Lauren States directly holds 12,148 CLEAN HARBORS common shares. This total includes the newly granted 652 shares and reflects her direct ownership position reported in the Form 4 filing.

When do the restricted CLEAN HARBORS (CLH) shares granted to Lauren States vest?

The 652 restricted CLEAN HARBORS shares vest 100% on the date of the next annual meeting of shareholders. Until vesting, the shares are subject to forfeiture conditions typical for non-employee director equity awards.

Is the Lauren States Form 4 for CLEAN HARBORS (CLH) a market buy or sell?

The Form 4 does not show a market buy or sell. It reports an acquisition coded as a grant or award of 652 restricted shares, reflecting equity compensation for a non-employee director rather than an open-market transaction.