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.

Purchase disclosedAmended filing

Karyn Polito

Director

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: $295.13
Raw implied value: $135,759.80
Verified price: —
Verified value: —
Confidence: low
Validation findings: amendment requires reconciliation · price missing

Original transaction filing ↗

Common Stock

Excluded from the common-share buying signal. See trade details.

Reported value: —
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.

Reporting insider	Security / transaction	Amount / price	Value	Traded / disclosed	Source
Director 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 $295.13 Raw implied value $135,759.80 Verified price — Verified value — Confidence low Validation findings amendment requires reconciliation · price missing Original transaction filing ↗	Common StockPurchaseExcluded from purchase score	460—	—	May 11Filed May 14 · 3d later	SEC filing

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

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

Director

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: $295.13
Raw implied value: $135,759.80
Verified price: —
Verified value: —
Confidence: low
Validation findings: amendment requires reconciliation · price missing

Original transaction filing ↗

Common StockPurchaseExcluded from purchase score

460—

—

May 11Filed May 14 · 3d later

SEC filing

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

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.

1 purchases · 6 sales

Insider transactions 36

Karyn Polito

Why this buying score?

No qualifying common-equity purchases

Sources and coverage

1 purchases · 6 sales

Insider transactions 36

Karyn Polito

Why this buying score?

No qualifying common-equity purchases

Sources and coverage

Congress transactions 8