Issuer files Form 144 to sell 3,540 common shares

Issuer submitted a Form 144 notice indicating intent to sell 3,540 common shares on 02/20/2026 through Morgan Stanley Smith Barney LLC.

Rhea-AI Filing Summary

Issuer submitted a Form 144 notice indicating intent to sell 3,540 common shares on 02/20/2026 through Morgan Stanley Smith Barney LLC. The filing lists multiple restricted stock lots with specific grant/vesting dates and quantities, including 973, 475, 424, 524, 89, 516, and 539 shares.

Insights

Equity Capital Markets Specialist

Form 144 records an intended sale of restricted common shares totaling 3,540 shares.

The notice identifies the broker as Morgan Stanley Smith Barney LLC and a filing date of 02/20/2026. The filing itemizes restricted stock lots with grant/vesting dates and amounts (973; 475; 424; 524; 89; 516; 539).

Cash‑flow treatment and whether sales were executed are not disclosed in the excerpt; subsequent filings will show transaction settlement details if sales occur.

FAQ

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

What did CLH's Form 144 disclose about shares offered for sale?

The Form 144 lists an intended sale of 3,540 common shares filed with a broker on 02/20/2026. It also itemizes restricted stock lots with grant/vesting dates and quantities but does not state execution or proceeds.

Who is the broker handling the CLH Form 144 filing?

The filing names Morgan Stanley Smith Barney LLC as the broker. The notice includes the broker's address and lists the exchange as NYSE on the same filing line as the sale intent.

Which restricted stock lots are listed in the CLH Form 144?

The excerpt itemizes restricted stock lots dated 07/01/2024 (973), 01/01/2026 (475), 02/01/2025 (424), 03/15/2024 (524), 12/15/2023 (89), 01/01/2025 (516), and 02/01/2026 (539).

Does the Form 144 state proceeds or execution status for CLH shares?

The provided excerpt does not state settled proceeds or whether the listed sales were executed. It records intended sale quantities and a filing date; any sale execution or proceeds would appear in later transaction reports.

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

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Accepted by SEC EDGAR 02/20/2026 - 04:13 PM EST Learn about SEC filing dates

Form 144 Filer Information	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 144 NOTICE OF PROPOSED SALE OF SECURITIES PURSUANT TO RULE 144 UNDER THE SECURITIES ACT OF 1933
FORM 144

144: Filer Information

Filer CIK	0001756568
Filer CCC	XXXXXXXX
Is this a LIVE or TEST Filing?	LIVE TEST
Submission Contact Information
Name
Phone
E-Mail Address

144: Issuer Information

Name of Issuer	CLEAN HARBORS, INC.
SEC File Number	001-34223
Address of Issuer	42 Longwater Drive Norwell MASSACHUSETTS 02061-9149
Phone	(781) 792-5000
Name of Person for Whose Account the Securities are To Be Sold	SHARON M GABRIEL
See the definition of "person" in paragraph (a) of Rule 144. Information is to be given not only as to the person for whose account the securities are to be sold but also as to all other persons included in that definition. In addition, information shall be given as to sales by all persons whose sales are required by paragraph (e) of Rule 144 to be aggregated with sales for the account of the person filing this notice.
Relationship to Issuer	Officer

144: Securities Information

Title of the Class of Securities To Be Sold	Name and Address of the Broker	Number of Shares or Other Units To Be Sold	Aggregate Market Value	Number of Shares or Other Units Outstanding	Approximate Date of Sale	Name the Securities Exchange
Common	Morgan Stanley Smith Barney LLC Executive Financial Services 1 New York Plaza 8th Floor New York NY 10004	3540	998527.80	52910946	02/20/2026	NYSE

Furnish the following information with respect to the acquisition of the securities to be sold and with respect to the payment of all or any part of the purchase price or other consideration therefor:

144: Securities To Be Sold

Title of the Class	Date you Acquired	Nature of Acquisition Transaction	Name of Person from Whom Acquired	Is this a Gift?	Date Donor Acquired	Amount of Securities Acquired	Date of Payment	Nature of Payment *
Common	07/01/2024	Restricted Stock	Issuer			973	07/01/2024	Not Applicable
Common	01/01/2026	Restricted Stock	Issuer			475	01/01/2026	Not Applicable
Common	02/01/2025	Restricted Stock	Issuer			424	02/01/2025	Not Applicable
Common	03/15/2024	Restricted Stock	Issuer			524	03/15/2024	Not Applicable
Common	12/15/2023	Restricted Stock	Issuer			89	12/15/2023	Not Applicable
Common	01/01/2025	Restricted Stock	Issuer			516	01/01/2025	Not Applicable
Common	02/01/2026	Restricted Stock	Issuer			539	02/01/2026	Not Applicable

* If the securities were purchased and full payment therefor was not made in cash at the time of purchase, explain in the table or in a note thereto the nature of the consideration given. If the consideration consisted of any note or other obligation, or if payment was made in installments describe the arrangement and state when the note or other obligation was discharged in full or the last installment paid.

Furnish the following information as to all securities of the issuer sold during the past 3 months by the person for whose account the securities are to be sold.

144: Securities Sold During The Past 3 Months

Nothing to Report

144: Remarks and Signature

Remarks
Date of Notice	02/20/2026
ATTENTION:
The person for whose account the securities to which this notice relates are to be sold hereby represents by signing this notice that he does not know any material adverse information in regard to the current and prospective operations of the Issuer of the securities to be sold which has not been publicly disclosed. If such person has adopted a written trading plan or given trading instructions to satisfy Rule 10b5-1 under the Exchange Act, by signing the form and indicating the date that the plan was adopted or the instruction given, that person makes such representation as of the plan adoption or instruction date.
Signature	/s/ Sharon Marie Gabriel
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)