Clean Harbors plans sale of 2,500 common shares

Clean Harbors (CLH) reports a planned sale of common stock through Raymond James & Associates, Inc. The filing covers 2,500 shares of common stock with an aggregate market value of $805,000.00, with a stated sale date of August 14, 2026, on the NYSE.

Rhea-AI Filing Summary

Clean Harbors (CLH) reports a planned sale of common stock through Raymond James & Associates, Inc. The filing covers 2,500 shares of common stock with an aggregate market value of $805,000.00, with a stated sale date of August 14, 2026, on the NYSE. The company also lists recent common stock transactions related to equity compensation on February 1, 2026, March 15, 2026, and July 1, 2026, involving 856, 1,042, and 602 shares, respectively.

Key Figures

Shares planned for sale: 2,500 shares Aggregate market value: $805,000.00 Shares referenced as outstanding: 53,240,000 shares +3 more

6 metrics

Shares planned for sale 2,500 shares Common stock to be sold through Raymond James & Associates, Inc.

Aggregate market value $805,000.00 Aggregate market value of 2,500 common shares planned for sale

Shares referenced as outstanding 53,240,000 shares Common shares referenced in connection with the issuer’s equity base

Equity comp transaction 1 602 shares Common stock related to equity compensation on July 1, 2026

Equity comp transaction 2 1,042 shares Common stock related to equity compensation on March 15, 2026

Equity comp transaction 3 856 shares Common stock related to equity compensation on February 1, 2026

Key Terms

Form 144, equity compensation, aggregate market value

3 terms

Form 144 regulatory

"Form 144 shows a planned sale of 2,500 Clean Harbors common shares"

Form 144 is a document that investors must file with the government when they plan to sell a large number of shares of a company's stock. It helps ensure transparency so everyone knows how many shares are being sold and when, which can impact the stock's price.

equity compensation financial

"recent common stock transactions related to equity compensation on February 1, 2026"

Equity compensation is pay given to employees, executives or contractors in the form of company ownership—such as stock, stock options or restricted shares—rather than just cash. It matters to investors because it can align workers' incentives with shareholders (like paying someone in slices of the same pie they help grow), but it also increases the number of shares outstanding and company expenses, affecting ownership percentages and earnings per share.

aggregate market value financial

"an aggregate market value of $805,000.00"

Aggregate market value is the combined price you would pay to buy all outstanding shares of a company or all companies in a group at current market prices — essentially the sum of each stock’s market capitalization. It matters to investors because it shows the overall size and weight of an investment or sector (like the total cost to buy every piece of a puzzle), helps compare scale across companies or markets, and influences index composition and risk exposure.

FAQ

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

What does the Form 144 filing mean for CLH shareholders?

The Form 144 indicates an intention to sell 2,500 common shares of Clean Harbors (CLH) with an aggregate market value of $805,000.00. It is a notice of potential resale by an affiliate, not a guarantee that all shares will be sold.

How many CLH shares are planned for sale under this Form 144?

The filing covers 2,500 shares of Clean Harbors common stock. These shares are planned to be sold through Raymond James & Associates, Inc. with an aggregate market value of $805,000.00 as stated in the document.

When are the CLH shares covered by this Form 144 expected to be sold?

The document lists a proposed sale date of August 14, 2026 for the 2,500 common shares of Clean Harbors. Form 144 is a notice of intent, so actual sales can differ in timing or amount.

What recent CLH equity compensation-related stock transactions are disclosed?

The filing lists common stock transactions related to equity compensation on February 1, 2026, March 15, 2026, and July 1, 2026 for 856, 1,042, and 602 shares, respectively. These appear in the section for securities activity over the past three months.

How many CLH shares are shown as outstanding in this Form 144 context?

The filing references 53,240,000 shares in connection with the common stock entry. This number appears alongside the planned 2,500-share sale and provides context for the issuer’s overall equity base.

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

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Available on EDGAR 08/14/2026 - 01:01 PM Accepted by SEC EDGAR 08/14/2026 - 01:00 PM 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	0001211558
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 P.O. BOX 9149 NORWELL MASSACHUSETTS 02061-9149
Phone	781-792-5000
Name of Person for Whose Account the Securities are To Be Sold	GERSTENBERG ERIC W
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	Raymond James & Associates, Inc. 880 Carillon Parkway St. Petersburg FL 33716	2500	805000.00	53240000	08/14/2026	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	07/01/2026	Equity Comp	Issuer			602	07/01/2026	Stock
Common	03/15/2026	Equity Comp	Issuer			1042	03/15/2026	Stock
Common	02/01/2026	Equity Comp	Issuer			856	02/01/2026	Stock

* 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	08/14/2026
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	Melissa Fisher, as duly authorized representative of Raymond James & Associates, Inc., as attorney-in-fact for Eric Gerstenberg
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)