CLH

NYSE

CLEAN HARBORS INC

Latest disclosureAugust 18, 2026

Insider score Why 0?: 0/ 100
Qualifying buys · 30d: $0

1 purchases · 6 sales

Price by TradingView

Insider transactions 36

Limited filing history

Filters

Last 30 daysNo qualifying insider buying. No qualifying insider sales.

Showing the first 6 of 29 trades on this page.

Tax or exercise withholdingAmended filing

Eric W. Gerstenberg

CO-CEO

Amended

Related filings are retained as evidence. This economic transaction is counted once.

This amendment supersedes the related original transaction.

Original SEC filing ↗Amended SEC filing ↗

Common Stock

Value context: $163.98K
Reported price: $290.74 / share

Tax or exercise withholdingAmended filing

Eric W. Gerstenberg

CO-CEO

Filing error, value unverified

The filed price or transaction value needs verification before it can be used in totals or buying signals.

Raw filed price per unit: $288.93
Raw implied value: $282,284.61
Verified price: —
Verified value: —
Confidence: low
Validation findings: amendment requires reconciliation

Original transaction filing ↗

Common Stock

Value context: —
Reported price: —

Understand this price

Filing error, value unverified. The filed amounts are preserved for review and excluded from buying signals and transaction totals until verified.

Other activity disclosedAmended filing

Eric W. Gerstenberg

CO-CEO

Filing error, value unverified

The filed price or transaction value needs verification before it can be used in totals or buying signals.

Raw filed price per unit: $0.00
Raw implied value: $0.00
Verified price: —
Verified value: —
Confidence: low
Validation findings: amendment requires reconciliation

Original transaction filing ↗

Common Stock

Value context: —
Reported price: —

Understand this price

Filing error, value unverified. The filed amounts are preserved for review and excluded from buying signals and transaction totals until verified.

Tax or exercise withholdingAmended filing

Eric J. Dugas

EVP CHIEF FINANCIAL OFFICER

Amended

Related filings are retained as evidence. This economic transaction is counted once.

This amendment supersedes the related original transaction.

Original SEC filing ↗Amended SEC filing ↗

Common Stock

Value context: $129.96K
Reported price: $290.74 / share

Tax or exercise withholdingAmended filing

Eric J. Dugas

EVP CHIEF FINANCIAL OFFICER

Filing error, value unverified

The filed price or transaction value needs verification before it can be used in totals or buying signals.

Raw filed price per unit: $288.93
Raw implied value: $182,025.90
Verified price: —
Verified value: —
Confidence: low
Validation findings: amendment requires reconciliation

Original transaction filing ↗

Common Stock

Value context: —
Reported price: —

Understand this price

Filing error, value unverified. The filed amounts are preserved for review and excluded from buying signals and transaction totals until verified.

Other activity disclosedAmended filing

Eric J. Dugas

EVP CHIEF FINANCIAL OFFICER

Filing error, value unverified

The filed price or transaction value needs verification before it can be used in totals or buying signals.

Raw filed price per unit: $0.00
Raw implied value: $0.00
Verified price: —
Verified value: —
Confidence: low
Validation findings: amendment requires reconciliation

Original transaction filing ↗

Common Stock

Value context: —
Reported price: —

Understand this price

Filing error, value unverified. The filed amounts are preserved for review and excluded from buying signals and transaction totals until verified.

Tax or exercise withholding

Michael Louis Battles

CO-CEO

Common Stock

Value context: $300.04K
Reported price: $290.74 / share

Tax or exercise withholding

George L. Curtis

EXEC. VICE PRESIDENT (CHESI)

Common Stock

Value context: $510.83K
Reported price: $290.74 / share

Tax or exercise withholding

Alan S. Mckim

EXEC CHAIR, CTO.

Common Stock

Value context: $392.88K
Reported price: $310.58 / share

Tax or exercise withholding

Sharon M. Gabriel

EVP/CIO (CHESI)

Common Stock

Value context: $104.38K
Reported price: $290.74 / share

Tax or exercise withholding

Brian P. Weber

EVP (CHESI)

Common Stock

Value context: $236.66K
Reported price: $290.74 / share

Tax or exercise withholding

Rebecca Underwood

PRESIDENT & EVP FACILITIES

Common Stock

Value context: $90.42K
Reported price: $290.74 / share

Tax or exercise withholding

Alan S. Mckim

EXEC CHAIR, CTO.

Common Stock

Value context: $390.46K
Reported price: $290.74 / share

Tax or exercise withholding

Eric W. Gerstenberg

CO-CEO

Superseded by later filing

Related filings are retained as evidence. This economic transaction is counted once.

This original record remains available as evidence. The later filing replaces it in totals and buying signals.

Superseding SEC filing ↗Original transaction filing ↗

Common Stock

Value context: Unavailable
Reported price: $290.74 / share

Tax or exercise withholding

Charles H. Geer II

EVP, Industrial Services

Common Stock

Value context: $11.63K
Reported price: $290.74 / share

Tax or exercise withholding

Eric J. Dugas

EVP CHIEF FINANCIAL OFFICER

Superseded by later filing

Related filings are retained as evidence. This economic transaction is counted once.

This original record remains available as evidence. The later filing replaces it in totals and buying signals.

Superseding SEC filing ↗Original transaction filing ↗

Common Stock

Value context: Unavailable
Reported price: $290.74 / share

Tax or exercise withholding

Jeroen Diderich

EVP&President of Sales&Service

Common Stock

Value context: $482.48K
Reported price: $281.00 / share

Award disclosed

Robert Willett

Director

Common Stock

Value context: Non-cash award
Reported price: Award · no purchase price

Understand this price

The filing reports a zero transaction price for this award. It does not mean the awarded securities have no market value.

Award disclosed

John R. Welch

Director

Common Stock

Value context: Non-cash award
Reported price: Award · no purchase price

Understand this price

The filing reports a zero transaction price for this award. It does not mean the awarded securities have no market value.

Award disclosed

Shelley Stewart JR

Director

Common Stock

Value context: Non-cash award
Reported price: Award · no purchase price

Understand this price

The filing reports a zero transaction price for this award. It does not mean the awarded securities have no market value.

Award disclosed

Lauren States

Director

Common Stock

Value context: Non-cash award
Reported price: Award · no purchase price

Understand this price

The filing reports a zero transaction price for this award. It does not mean the awarded securities have no market value.

Award disclosed

Andrea Robertson

Director

Common Stock

Value context: Non-cash award
Reported price: Award · no purchase price

Understand this price

The filing reports a zero transaction price for this award. It does not mean the awarded securities have no market value.

Award disclosed

Marcy L. Reed

Director

Common Stock

Value context: Non-cash award
Reported price: Award · no purchase price

Understand this price

The filing reports a zero transaction price for this award. It does not mean the awarded securities have no market value.

Award disclosed

Alison A. Quirk

Director

Common Stock

Value context: Non-cash award
Reported price: Award · no purchase price

Understand this price

The filing reports a zero transaction price for this award. It does not mean the awarded securities have no market value.

Award disclosed

John T. Preston

Director

Common Stock

Value context: Non-cash award
Reported price: Award · no purchase price

Understand this price

The filing reports a zero transaction price for this award. It does not mean the awarded securities have no market value.

Award disclosed

Edward G. Galante

Director

Common Stock

Value context: Non-cash award
Reported price: Award · no purchase price

Understand this price

The filing reports a zero transaction price for this award. It does not mean the awarded securities have no market value.

Award disclosed

Karyn Polito

Director

Common Stock

Value context: Non-cash award
Reported price: Award · no purchase price

Understand this price

The filing reports a zero transaction price for this award. It does not mean the awarded securities have no market value.

Award disclosed

Karyn Polito

Director

Common Stock

Value context: $135.76K
Reported price: $295.13 / share

Gift disclosed

Andrea Robertson

Director

Common Stock

Value context: Not a purchase
Reported price: Gift · no purchase price

Understand this price

The filing reports a zero transaction price for this gift. It does not establish the market value of the gift.

Reporting insider	Security / transaction	Amount / price	Value	Traded / disclosed	Source
CO-CEO Amended Related filings are retained as evidence. This economic transaction is counted once. This amendment supersedes the related original transaction. Original SEC filing ↗Amended SEC filing ↗	Common StockExercise-price or tax withholding	564$290.74 / share	$163.98K	Jul 1Filed Aug 14 · 44d later	SEC filing
CO-CEO Filing error, value unverified The filed price or transaction value needs verification before it can be used in totals or buying signals. Raw filed price per unit $288.93 Raw implied value $282,284.61 Verified price — Verified value — Confidence low Validation findings amendment requires reconciliation Original transaction filing ↗	Common StockExercise-price or tax withholding	977—	—	Mar 13Filed Aug 14 · 154d later	SEC filing
CO-CEO Filing error, value unverified The filed price or transaction value needs verification before it can be used in totals or buying signals. Raw filed price per unit $0.00 Raw implied value $0.00 Verified price — Verified value — Confidence low Validation findings amendment requires reconciliation Original transaction filing ↗	Common StockDisposition to issuer	2,166—	—	Mar 13Filed Aug 14 · 154d later	SEC filing
EVP CHIEF FINANCIAL OFFICER Amended Related filings are retained as evidence. This economic transaction is counted once. This amendment supersedes the related original transaction. Original SEC filing ↗Amended SEC filing ↗	Common StockExercise-price or tax withholding	447$290.74 / share	$129.96K	Jul 1Filed Aug 14 · 44d later	SEC filing
EVP CHIEF FINANCIAL OFFICER Filing error, value unverified The filed price or transaction value needs verification before it can be used in totals or buying signals. Raw filed price per unit $288.93 Raw implied value $182,025.90 Verified price — Verified value — Confidence low Validation findings amendment requires reconciliation Original transaction filing ↗	Common StockExercise-price or tax withholding	630—	—	Mar 13Filed Aug 14 · 154d later	SEC filing
EVP CHIEF FINANCIAL OFFICER Filing error, value unverified The filed price or transaction value needs verification before it can be used in totals or buying signals. Raw filed price per unit $0.00 Raw implied value $0.00 Verified price — Verified value — Confidence low Validation findings amendment requires reconciliation Original transaction filing ↗	Common StockDisposition to issuer	1,324—	—	Mar 13Filed Aug 14 · 154d later	SEC filing
CO-CEO	Common StockExercise-price or tax withholding	1,032$290.74 / share	$300.04K	Jul 1Filed Aug 12 · 42d later	SEC filing
EXEC. VICE PRESIDENT (CHESI)	Common StockExercise-price or tax withholding	1,757$290.74 / share	$510.83K	Jul 1Filed Aug 11 · 41d later	SEC filing
EXEC CHAIR, CTO.	Common StockExercise-price or tax withholding	1,265$310.58 / share	$392.88K	Jul 17Filed Jul 20 · 3d later	SEC filing
EVP/CIO (CHESI)	Common StockExercise-price or tax withholding	359$290.74 / share	$104.38K	Jul 1Filed Jul 6 · 5d later	SEC filing
EVP (CHESI)	Common StockExercise-price or tax withholding	814$290.74 / share	$236.66K	Jul 1Filed Jul 6 · 5d later	SEC filing
PRESIDENT & EVP FACILITIES	Common StockExercise-price or tax withholding	311$290.74 / share	$90.42K	Jul 1Filed Jul 6 · 5d later	SEC filing
EXEC CHAIR, CTO.	Common StockExercise-price or tax withholding	1,343$290.74 / share	$390.46K	Jul 1Filed Jul 6 · 5d later	SEC filing
CO-CEO Superseded by later filing Related filings are retained as evidence. This economic transaction is counted once. This original record remains available as evidence. The later filing replaces it in totals and buying signals. Superseding SEC filing ↗Original transaction filing ↗	Common StockExercise-price or tax withholding	564$290.74 / share	Unavailable	Jul 1Filed Jul 6 · 5d later	SEC filing
EVP, Industrial Services	Common StockExercise-price or tax withholding	40$290.74 / share	$11.63K	Jul 1Filed Jul 6 · 5d later	SEC filing
EVP CHIEF FINANCIAL OFFICER Superseded by later filing Related filings are retained as evidence. This economic transaction is counted once. This original record remains available as evidence. The later filing replaces it in totals and buying signals. Superseding SEC filing ↗Original transaction filing ↗	Common StockExercise-price or tax withholding	447$290.74 / share	Unavailable	Jul 1Filed Jul 6 · 5d later	SEC filing
EVP&President of Sales&Service	Common StockExercise-price or tax withholding	1,717$281.00 / share	$482.48K	Jun 1Filed Jun 3 · 2d later	SEC filing
Director	Common StockGrant or award	652Award · no purchase price	Non-cash award	May 20Filed May 22 · 2d later	SEC filing
Director	Common StockGrant or award	652Award · no purchase price	Non-cash award	May 20Filed May 22 · 2d later	SEC filing
Director	Common StockGrant or award	652Award · no purchase price	Non-cash award	May 20Filed May 22 · 2d later	SEC filing
Director	Common StockGrant or award	652Award · no purchase price	Non-cash award	May 20Filed May 22 · 2d later	SEC filing
Director	Common StockGrant or award	652Award · no purchase price	Non-cash award	May 20Filed May 22 · 2d later	SEC filing
Director	Common StockGrant or award	652Award · no purchase price	Non-cash award	May 20Filed May 22 · 2d later	SEC filing
Director	Common StockGrant or award	652Award · no purchase price	Non-cash award	May 20Filed May 22 · 2d later	SEC filing
Director	Common StockGrant or award	652Award · no purchase price	Non-cash award	May 20Filed May 22 · 2d later	SEC filing
Director	Common StockGrant or award	652Award · no purchase price	Non-cash award	May 20Filed May 22 · 2d later	SEC filing
Director	Common StockGrant or award	652Award · no purchase price	Non-cash award	May 20Filed May 22 · 2d later	SEC filing
Director	Common StockGrant or award	460$295.13 / share	$135.76K	May 11Filed May 13 · 2d later	SEC filing
Director	Common StockGift	342Gift · no purchase price	Not a purchase	May 11Filed May 12 · 1d later	SEC filing

Congress transactions 8

All Congress filings

Sale disclosed

Clean Harbors, Inc. Common Stock (CLH) · Stock

The filing reports a sale for a dependent.

April McClain DelaneyReporting House member

Reported amount: $50,001 – $100,000Reported range; exact amount not disclosed.
Trade date: August 25, 2026

Partial sale disclosed

Clean Harbors, Inc. Common Stock (CLH) · Stock

The filing reports a partial sale for a dependent.

April McClain DelaneyReporting House member

Reported amount: $1,001 – $15,000Reported range; exact amount not disclosed.
Trade date: July 28, 2026

Partial sale disclosed

Clean Harbors, Inc. Common Stock (CLH) · Stock

The filing reports a partial sale for a dependent.

April McClain DelaneyReporting House member

Reported amount: $1,001 – $15,000Reported range; exact amount not disclosed.
Trade date: July 27, 2026

Partial sale disclosed

Clean Harbors, Inc. Common Stock (CLH) · Stock

The filing reports a partial sale for a dependent.

April McClain DelaneyReporting House member

Reported amount: $1,001 – $15,000Reported range; exact amount not disclosed.
Trade date: July 24, 2026

Partial sale disclosed

Clean Harbors, Inc. Common Stock (CLH) · Stock

The filing reports a partial sale for a dependent.

April McClain DelaneyReporting House member

Reported amount: $1,001 – $15,000Reported range; exact amount not disclosed.
Trade date: May 1, 2026

Partial sale disclosed

Clean Harbors, Inc. Common Stock (CLH) · Stock

The filing reports a partial sale for a dependent.

April McClain DelaneyReporting House member

Reported amount: $1,001 – $15,000Reported range; exact amount not disclosed.
Trade date: April 30, 2026

Purchase disclosed

Clean Harbors, Inc. Common Stock (CLH) · Stock

The filing reports a purchase for a dependent.

April McClain DelaneyReporting House member

Reported amount: $15,001 – $50,000Reported range; exact amount not disclosed.
Trade date: February 23, 2026

Purchase disclosed

Clean Harbors, Inc. Common Stock (CLH) · Stock

The filing reports a purchase for a dependent.

April McClain DelaneyReporting House member

Reported amount: $1,001 – $15,000Reported range; exact amount not disclosed.
Trade date: December 3, 2025

Why this buying score?

No qualifying common-equity purchases

No eligible common-equity purchase is public by this cutoff within 180 transaction-date days. Other instruments, exercises and routine activity do not contribute purchase points.

+0 pts

This score describes qualifying insider purchases at issuer level. Read the methodology

Sources and coverage

Limited filing history · Market-wide discovery does not establish complete company history. View coverage

Source: SEC EDGAR · Form 4
Issuer CIK: 0000822818
Latest public acceptance: Aug 18, 2026, 06:47 PM UTC
Score calculated: Oct 8, 2026, 12:04 AM UTC
Parser: form4-parser-1.5
Classifier: form4-classifier-1.1
Scoring methodology: insider-experimental-1.1
Availability: Public filing time, not trade date

Open a transaction's SEC filing for the primary evidence. A code P may describe an open-market or private purchase; classification is not proof of intent.

Insider activity can have many explanations. Signal Strength is not a probability of profit or a recommendation to trade.

Reporting insider

Security / transaction

Amount / price

Value

Traded / disclosed

Source

CO-CEO

Amended

Related filings are retained as evidence. This economic transaction is counted once.

This amendment supersedes the related original transaction.

Original SEC filing ↗Amended SEC filing ↗

Common StockExercise-price or tax withholding

564$290.74 / share

$163.98K

Jul 1Filed Aug 14 · 44d later