$CLH

GERSTENBERG ERIC W sold $803K of CLH

GERSTENBERG ERIC W (CO-CEO) sold 2,500 shares of CLEAN HARBORS INC (CLH) at $321.34 ($0.80M total) on 2026-08-14.

Original reporting
SEC EDGAR · GERSTENBERG ERIC W
Published Aug 18, 2026, 6:47 PM UTC
Analysis
alphai AI DeskAI-generated
Added to alphai Aug 18, 2026, 6:54 PM UTC. Informational, not investment advice.
How this was made
alphai summarizes source reporting and applies a structured AI analysis for relevance, timing, sentiment and ticker impact. Always verify material claims with the original publisher.
alphai market briefInsider activity
Primary signal
$CLH
Neutral
medium confidence
Mentioned
$CLH
Relevance
5/10
alphai data visualization · based on SEC EDGAR
Decision brief

The 30-second read

$CLHNeutralLow
01

Why it matters

The newest fact is the disclosed open-market sale by the co-CEO, including trade date, share count, price, and remaining holdings.

02

Market read

Traders may note the insider sale for sentiment, but there is no accompanying company-specific fundamental update in the text.

03

What to watch

Insider sales can be driven by diversification, taxes, or pre-existing personal plans; without context on compensation or prior sales cadence, directional inference is weak.

Relevance 5/10Novelty 3/10Timing: filed 2026-08-18, covering a sale dated 2026-08-14

Background

The article is a SEC Form 4 insider transaction disclosure for Clean Harbors Inc.

Company-level read

Ticker impact

$CLHNeutralMedium confidence
Context

Clean Harbors co-CEO Eric W. Gerstenberg sold 2,500 shares at $321.34 on 2026-08-14 via an open-market sale.

Expected impact

Likely limited near-term impact; any effect is sentiment-driven and typically short-lived.

Evidence & confidence

The filing discloses the transaction size, price, and post-sale holdings, but provides no new operational, financial, or regulatory catalyst for CLH.

Market effects

Insider selling in waste and environmental services is generally not a sector-wide signal without accompanying guidance or regulatory developments.

No specific regional read-through is provided.

No global macro or cross-border catalyst is mentioned.

Counterpoint

The sale may be routine liquidity management and not a bearish signal, especially since the filing notes no 10b5-1 plan.

Key entities

  • Clean Harbors Inc

    Subject of the Form 4 insider transaction disclosure.

  • Eric W. Gerstenberg

    Co-CEO who sold 2,500 shares in an open-market sale.

Full insider trading history

This story covers one filing. See everything behind it: every insider buy and sell on record, 10b5-1 plans, late filings, and which officers and directors are trading.

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