[144] Clean Harbors, Inc SEC Filing

Rhea-AI Filing Summary

Clean Harbors, Inc. (CLH) – Form 144 filing

• Securities for sale: 836 common shares, representing roughly 0.0016% of the 53,632,607 shares outstanding.
• Approximate market value: $195,323.04 based on figures supplied in the notice.
• Planned sale date & venue: 31 Jul 2025 on the NYSE through broker Morgan Stanley Smith Barney LLC, 1 New York Plaza, NY.
• Source of shares: Restricted stock acquired 21 May 2025 from the issuer; no indication the transfer was a gift.
• Prior 3-month activity: The filer reports “Nothing to Report,” indicating no other sales during that period.
• Certification: Signatory attests to having no undisclosed material adverse information and acknowledges Rule 10b5-1 requirements.

The document is a routine notice of intent to sell a modest number of insider-held shares. No financial performance data, guidance, or operational updates are included.

Positive

• Sale size is only 0.0016% of outstanding shares, indicating minimal dilution or market impact.
• No other insider sales reported in the past three months, suggesting no broader disposal trend.

Negative

• Filing signals insider intent to sell shares, which some investors may perceive negatively despite small volume.

Insights

Securities Analyst

TL;DR: 836-share Form 144 sale is immaterial to CLH’s float; neutral impact.

The filing discloses an insider’s plan to sell 836 common shares—worth about $195k—out of 53.6 million outstanding. At 0.0016% of float, the transaction is de minimis and unlikely to influence market liquidity or price. No other sales in the past three months reduces concerns over a pattern of disposition. Because the shares originate from recently vested restricted stock, this appears to be a standard liquidity move rather than a strategic shift. I view the disclosure as routine and non-impactful.

Corporate Governance Expert

TL;DR: Insider sale small, transparent, complies with Rule 144; governance stance neutral.

The notice satisfies Rule 144’s disclosure requirements: broker identified, sale window specified, and certification of no undisclosed MNPI. Absence of sales in the preceding quarter and the modest dollar amount mitigate governance red flags. Unless this sale coincides with other large disposals or negative news, it poses no material governance concern.

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

144: Issuer Information

Name of Issuer

SEC File Number

Address of Issuer

Phone

Name of Person for Whose Account the Securities are To Be Sold

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

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	836	195323.04	53632607	07/31/2025	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	05/21/2025	Restricted Stock	Issuer			836	05/21/2025	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

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

ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)

FAQ

How many Clean Harbors (CLH) shares are being sold under this Form 144?

The insider plans to sell 836 common shares.

What is the estimated market value of the shares to be sold?

The filing lists an aggregate market value of approximately $195,323.04.

When is the planned sale date for the CLH shares?

The approximate sale date disclosed is July 31, 2025.

How large is this sale relative to Clean Harbors’ shares outstanding?

The 836 shares represent about 0.0016% of the 53,632,607 shares outstanding.

Which broker will execute the transaction?

The shares will be sold through Morgan Stanley Smith Barney LLC, Executive Financial Services.