Clean Harbors Inc

CLH· NYSE

Since Oct 2, 2025

Transactions: 14
Purchases: 1
Sales: 13
Purchase value: $135.76K
Sale value: $63.40M

Values are shares multiplied by reported price when both were supplied, each trade counted once however many filers reported it.

Gerstenberg Eric WCO-CEO

Filed Aug 18, 2026Period of report Aug 14, 20260001211558-26-000020

Transaction	Security	Shares	Price	ValueValue (shares × price)	Held after	Ownership
SaleAug 14, 2026	Common Stock	2,500	$321.34	$803.35K	56,793	Direct

Open on SEC EDGAR

Robertson AndreaDirector

Filed Aug 3, 2026Period of report Aug 3, 20260001295248-26-000005

Transaction	Security	Shares	Price	ValueValue (shares × price)	Held after	Ownership
SaleAug 3, 2026	Common Stock	789	$314.01	$247.75K	8,979	Direct

States LaurenDirector

Filed May 27, 2026Period of report May 26, 20260001670022-26-000005

Transaction	Security	Shares	Price	ValueValue (shares × price)	Held after	Ownership
SaleMay 26, 2026	Common Stock	789	$286.19	$225.80K	11,359	Direct

Polito KarynDirector

4/AAmendment

Filed May 14, 2026Period of report May 11, 20260001965457-26-000004

Transaction	Security	Shares	Price	ValueValue (shares × price)	Held after	Ownership
Purchase

Gerstenberg Eric WCO-CEO

4/AAmendment

Filed Aug 14, 2026Period of report Mar 18, 20260001211558-26-000016

Transaction	Security	Shares	Price	ValueValue (shares × price)	Held after	Ownership
Sale

Reed Marcy L.Director

Filed Mar 19, 2026Period of report Mar 18, 20260001883932-26-000002

Transaction	Security	Shares	Price	ValueValue (shares × price)	Held after	Ownership
SaleMar 18, 2026	Common Stock	836	$287.94	$240.72K	5,081	Direct

Weber Brian PEVP (CHESI)

Filed Mar 17, 2026Period of report Mar 13, 20260001322710-26-000004

Transaction	Security	Shares	Price	ValueValue (shares × price)	Held after	Ownership
SaleMar 17, 2026	Common Stock	4,683	$293.39	$1.37M	48,728	Direct

McKim Alan SDirector · EXEC CHAIR, CTO.

Filed Mar 5, 2026Period of report Mar 4, 20260001024547-26-000006

Transaction	Security	Shares	Price	ValueValue (shares × price)	Held after	Ownership
SaleMar 4, 2026	Common Stock	100,000	$292.65	$29.27M	2,065,368	IndirectMcKim 2007 Trust

Gerstenberg Eric WCO-CEO

4/AAmendment

Filed Aug 14, 2026Period of report Feb 23, 20260001211558-26-000012

Transaction	Security	Shares	Price	ValueValue (shares × price)	Held after	Ownership
Sale

Dugas Eric J.EVP CHIEF FINANCIAL OFFICER

4/AAmendment

Filed Aug 14, 2026Period of report Feb 20, 20260001663307-26-000010

Transaction	Security	Shares	Price	ValueValue (shares × price)	Held after	Ownership
Sale

Gabriel Sharon M.EVP/CIO (CHESI)

Filed Feb 20, 2026Period of report Feb 20, 20260001756568-26-000006

Transaction	Security	Shares	Price	ValueValue (shares × price)	Held after	Ownership
SaleFeb 20, 2026	Common Stock	3,540	$282.07	$998.53K	23,193	Direct

McKim Alan SDirector · EXEC CHAIR, CTO.

Filed Feb 23, 2026Period of report Feb 19, 20260001024547-26-000002

Transaction	Security	Shares	Price	ValueValue (shares × price)	Held after	Ownership
SaleFeb 19, 2026	Common Stock	100,000	$281.14	$28.11M	2,275,368	IndirectMcKim 2007 Trust

Welch John R.Director

Filed Feb 20, 2026Period of report Feb 19, 20260001611303-26-000002

Transaction	Security	Shares	Price	ValueValue (shares × price)	Held after	Ownership
SaleFeb 19, 2026	Common Stock	750	$273.07	$204.80K	10,237	Direct

Gerstenberg Eric WCO-CEO

Filed Dec 17, 2025Period of report Dec 16, 20250001211558-25-000004

Transaction	Security	Shares	Price	ValueValue (shares × price)	Held after	Ownership
SaleDec 16, 2025	Common Stock	601	$240.90	$144.78K	50,454	Direct

P and S transaction codes only. Grants, gifts, option exercises, tax withholding, and Form 144 notices are not counted as purchases or sales. A row whose filed price fails a plausibility check, or that is not common stock, is listed but left out of the values; a trade reported by several filers is counted once.