Insider Dumps 1,000 Shares After Industrial Stock Surges by 49% in Last Year

Insider Dumps 1,000 Shares After Industrial Stock Surges by 49% in Last Year

Jake Lerch, The Motley Fool

Tue, August 18, 2026 at 4:05 PM GMT+3 4 min read

• CLH -0.29%

Eric W. Gerstenberg, CO-CEO of Clean Harbors, Inc. (NYSE:CLH), disclosed a sale of 1,000 shares of common stock on March 18, 2026, according to an SEC Form 4 filing.

Transaction summary

Transaction value based on SEC Form 4 weighted average sale price ($293.00); post-transaction value based on March 18, 2026, market close ($291.00).

Company Snapshot

• Sector: Industrials

• Industry: Waste Management

• Market Cap: $16.9 billion

• TTM Revenue: $6.2 billion

Clean Harbors delivers a comprehensive range of environmental and industrial services across North America. The company is structured into two primary divisions: Environmental Services and Safety-Kleen Sustainability Solutions.

Key questions

• What is the scale of the transaction relative to the insider's total equity position?
  The sale of 1,000 shares reduced Eric W. Gerstenberg's direct holdings by 2%, leaving a remaining position of 59,857 shares.

• How has the company performed financially over the last 12 months?
  Clean Harbors reported trailing-twelve-month revenue of $6.2 billion and net income of $439.1 million as of the latest reporting period.

• How does the current market valuation compare to the price at the time of the transaction?
  The transaction was executed at $293.00 per share, while the stock was priced at $320.24 as of the Aug. 13, 2026, market close.

Company Overview

Company Snapshot

• Clean Harbors delivers comprehensive environmental and industrial services across North America through two primary divisions: Environmental Services and Safety-Kleen Sustainability Solutions, which manage the complete lifecycle of hazardous and non-hazardous waste, including collection, transportation, treatment, and disposal.

• The company generates revenue through integrated waste management operations, resource reclamation services, and environmental remediation solutions, leveraging a diversified service portfolio to serve industrial, commercial, and municipal customers.

• Clean Harbors serves a broad customer base, including manufacturing facilities, refineries, chemical plants, and municipalities across North America that require specialized hazardous waste management and environmental compliance solutions.

Clean Harbors is a leading North American environmental and waste management services provider with a market capitalization of $16.9 billion and TTM revenues of $6.2 billion, operating through an integrated platform of environmental services and sustainability solutions. The company maintains a competitive advantage through its comprehensive service offerings, extensive geographic footprint, and specialized expertise in hazardous waste management and environmental remediation. With 22,155 employees and demonstrated operational scale, Clean Harbors is positioned as a critical infrastructure provider in the industrial waste management sector.

What this transaction means for investors

Investors should be careful when it comes to insider transactions. For one thing, insiders sell for many reasons, ranging from tax purposes to estate planning. For another, it's always best to approach an investment decision after reviewing a company's fundamentals, rather than simply whether insiders are buying or selling. With that in mind, let's have a look at Clean Harbors (CLH).

To start, CLH stock has performed very well over the last few years. Since 2021, the stock has delivered a total return of 226%, equating to a compound annual growth rate (CAGR) of 26.7%. The S&P 500, meanwhile, has generated an 86% total return, with a 13.2% CAGR.

Turning to fundamentals, the company recently reported quarterly results showing expanding operating margins. Overall, operating margins increased to 11.8%, up from a five-year low of 8.8% in 2022. The company has benefited from the rapid growth of the data center ecosystem, resulting in greater demand for hazardous waste management.

In short, CLH is a clever way to gain exposure to the data center boom. Therefore, growth-oriented investors who think the AI boom is just getting started may want to consider CLH.

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Jake Lerch has no position in any of the stocks mentioned. The Motley Fool has no position in any of the stocks mentioned. The Motley Fool has a disclosure policy.

Insider Dumps 1,000 Shares After Industrial Stock Surges by 49% in Last Year was originally published by The Motley Fool