Are the Clean Harbors (CLH) transactions direct or through related entities?

Most reported activity is through the McKim 2007 Trust, which executed the 100,000-share sale and 10,000-share charitable gift. The filing also lists holdings in the McKim 2025 Annuity Trust and a smaller direct holding by Alan S. McKim himself.

Clean Harbors chair linked trust sells 100K shares

Clean Harbors Inc. executive chair and CTO Alan S. McKim reported indirect transactions in company common stock through related trusts.

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Form Type

Rhea-AI Filing Summary

Clean Harbors Inc. executive chair and CTO Alan S. McKim reported indirect transactions in company common stock through related trusts. The McKim 2007 Trust, an entity associated with him, executed an open-market sale of 100,000 shares at $281.14 per share and a separate 10,000-share bona fide charitable gift.

After these transactions, the McKim 2007 Trust held 2,265,368 shares, while the McKim 2025 Annuity Trust held 67,093 shares and McKim held 34,027 shares directly. The filing reflects both a significant indirect sale and a charitable transfer rather than a purchase.

Insider Trade Summary

Net Seller: 100,000 shares

Net Sell 4 txns

Insider MCKIM ALAN S

Role EXEC CHAIR, CTO.

Sold 100,000 shs ($28.11M)

Type	Security	Shares	Price	Value
Sale	Common Stock	100,000	$281.14	$28.11M
Gift	Common Stock	10,000	$0.00	$0.00
holding	Common Stock	--	--	--
holding	Common Stock	--	--	--

Holdings After Transaction: Common Stock — 2,265,368 shares (Indirect, McKim 2007 Trust); Common Stock — 34,027 shares (Direct); Common Stock — 67,093 shares (Indirect, McKim 2025 Annuity Trust)

Footnotes (1)

F1. Charitable Gift.

FAQ

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

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

Clean Harbors reported that the McKim 2007 Trust, associated with executive chair Alan S. McKim, sold 100,000 common shares and made a 10,000-share charitable gift. These were indirect transactions in Clean Harbors stock, not open-market purchases by McKim personally.

How many Clean Harbors (CLH) shares were sold and at what price?

The McKim 2007 Trust sold 100,000 Clean Harbors common shares at $281.14 per share in an open-market transaction. This sale was reported as an indirect disposition related to executive chair Alan S. McKim, rather than a direct personal trade by him.

Was there a charitable donation of Clean Harbors (CLH) stock in this filing?

Yes. The Form 4 shows a 10,000-share bona fide charitable gift of Clean Harbors common stock from the McKim 2007 Trust. The transaction carried a reported price of $0.00 per share and was identified explicitly as a charitable gift in the footnote.

What are Alan S. McKim’s reported Clean Harbors (CLH) holdings after the transactions?

After the reported transactions, the McKim 2007 Trust held 2,265,368 Clean Harbors shares, the McKim 2025 Annuity Trust held 67,093 shares, and Alan S. McKim held 34,027 shares directly. These figures reflect post-transaction ownership positions as disclosed.

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Accepted by SEC EDGAR 02/23/2026 - 01:51 PM EST

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^*

MCKIM ALAN S

(Last)

(First)

(Middle)

C/O CLEAN HARBORS, INC.

42 LONGWATER DRIVE

(Street)

NORWELL

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)

X	Director	10% Owner
X	Officer (give title below)	Other (specify below)
	EXEC CHAIR, CTO.

3. Date of Earliest Transaction (Month/Day/Year)
02/19/2026

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)
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	02/19/2026		S		100,000	D	$281.14	2,275,368	I	McKim 2007 Trust
Common Stock	02/19/2026		G		10,000⁽¹⁾	D	$0	2,265,368	I	McKim 2007 Trust
Common Stock								34,027	D
Common Stock								67,093	I	McKim 2025 Annuity Trust

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. Charitable Gift.

	/s/ C. Michael Malm, Attorney-in-Fact	02/23/2026
	** 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.

Source: View Original Filing on SEC EDGAR