Alan S. Mckim - 01 Jul 2026 Form 4 Insider Report for CLEAN HARBORS INC (CLH)

Reporting relationship: EXEC CHAIR, CTO., Director
Issuer ticker: CLH
Reported as of: 01 Jul 2026
Net transaction value: $0
SEC form: 4
Accepted by SEC: 06 Jul 2026, 15:10:06 UTC
Prior SEC filing: 17 Mar 2026
Source filing: View source filing
Reporting owner signature: /s/ C. Michael Malm, Attorney-in-Fact

Key filing fact

Alan S. Mckim filed Form 4 for CLEAN HARBORS INC (CLH) on 06 Jul 2026.

Key facts

This page summarizes Alan S. Mckim's Form 4 filing for CLEAN HARBORS INC (CLH).
1 reported transaction and 0 derivative rows are listed below.
Accepted by SEC: 06 Jul 2026, 15:10.

Change

Previous filing in this sequence was filed on 17 Mar 2026.
Current net transaction value: $0.

Research use

This tells you what this filing adds before you inspect full transaction and derivative tables.
You can trace every row back to the original SEC filing document.

Evidence

Filed on Form 4

Ownership activity is grounded in SEC Form 4 disclosures.

View source filing

Reporting Owners (1)

CIK 0001024547 Primary reporting owner

MCKIM ALAN S

Relationship: EXEC CHAIR, CTO., Director
Address: C/O CLEAN HARBORS, INC., 42 LONGWATER DRIVE, NORWELL
Signature: /s/ C. Michael Malm, Attorney-in-Fact
Signature date: 06 Jul 2026

Reported non-derivative transactions

Shares, units, or other non-derivative securities reported in this filing.

CLH transaction

Common Stock

Tax liability

Transaction value
Shares: -1,343
Change %: -4.1%
Price: $290.74^*
Shares after: 31,419
Date: 01 Jul 2026
Ownership: Direct
Footnotes: F1

CLH holding

Common Stock

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after: 100,000
Date: 01 Jul 2026
Ownership: McKim 2026 Annuity Trust

CLH holding

Common Stock

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after: 67,093
Date: 01 Jul 2026
Ownership: McKim 2025 Annuity Trust

CLH holding

Common Stock

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after: 2,065,368
Date: 01 Jul 2026
Ownership: McKim 2007 Trust

^* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 1 footnote

Footnote F1

Payment of tax liability by withholding of securities incident to vesting of securities in accordance with Rule 16b3

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