Clean Harbors Co-CEO Gerstenberg Sells 2,500 Shares
Key Points
The transaction was valued at $803,350.
The sale reduced the Co-CEO's total direct equity holdings by 4%.
Gerstenberg continues to hold 56,793 shares of common stock.
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Eric W. Gerstenberg, Co-CEO of Clean Harbors (NYSE:CLH), sold 2,500 shares of common stock on Aug. 14, 2026, according to a SEC Form 4 filing.
Transaction summary
| Metric | Value |
|---|---|
| Transaction value | $803,350 |
| Shares sold | 2,500 |
| Post-transaction shares (directly held) | 56,793 |
| Post-transaction value | $18.2 million |
Transaction value based on SEC Form 4 weighted average sale price ($321.34); post-transaction value based on Aug. 14, 2026, market close ($321.98).
Key questions
- What was the impact of the transaction on the insider's total stake?
The sale of 2,500 shares represented 4% of the CO-CEO's direct common stock position, leaving him with a remaining direct interest of 56,793 shares. - How does the execution price relate to recent market levels?
The disposal was executed at $321.34 per share, while the stock was priced at $326.05 as of the Aug. 17, 2026, market close. - What is the current market valuation of the insider's remaining interest?
Gerstenberg's direct holdings are valued at $18.2 million based on the $321.98 market close on the transaction date of Aug. 14, 2026. - How has the equity performed over the past year?
Clean Harbors generated a one-year total return of 30% as of the transaction date of Aug. 14, 2026.
Company Overview
| Metric | Value |
|---|---|
| Share Price (as of market close 2026-08-17) | $326.05 |
| Market Capitalization | $16.7 billion |
| Revenue (TTM) | $6.2 billion |
| Net Income (TTM) | $439 million |
Company Snapshot
- Clean Harbors delivers comprehensive environmental and industrial services across North America through two primary divisions: Environmental Services, which manages the complete lifecycle of hazardous and non-hazardous waste, including collection, transportation, treatment, and disposal, and Safety-Kleen Sustainability Solutions, which provides resource reclamation and waste management solutions.
- The company generates revenue through a diversified service model encompassing hazardous waste management, non-hazardous waste disposal, environmental remediation, industrial cleaning, and sustainability solutions, leveraging an extensive network of facilities and transportation infrastructure to serve customers across multiple end markets.
- Clean Harbors serves a broad customer base, including industrial manufacturers, petrochemical refineries, healthcare facilities, commercial enterprises, and governmental entities that require comprehensive waste management, environmental compliance, and industrial services across North America.
Clean Harbors is a leading North American environmental and industrial services provider with a $16.7 billion market capitalization and $6.2 billion in TTM revenue, demonstrating significant scale and market presence. The company's diversified service portfolio and integrated operational infrastructure across waste management, environmental remediation, and sustainability solutions provide competitive advantages in serving complex industrial and commercial customer requirements. With 22,155 employees and a strategic focus on environmental compliance and resource recovery, Clean Harbors maintains a strong market position in the waste management and environmental services sector.
What this transaction means for investors
With a few context clues, this sale from Gerstenberg doesn't appear to be anything more than routine. While the executive sold 2,500 shares, he still retained nearly 57,000 shares, indicating continued alignment with the company, as those holdings were valued at approximately $18.2 million. Also, the stock price has performed relatively strongly over the last 12 months, suggesting Gerstenberg is likely just selling into strength. Shares of Clean Harbors have climbed 31.1% over the last year as of this writing, while the S&P 500 is up 19.4% over the same period.
Clean Harbors shared a strong 2026 second-quarter earnings report at the end of July, with revenue increasing 12% to $1.7 billion and setting a record. It also reported net income increased 34% to $170.5 million and boosted guidance for adjusted free cash flow and adjusted earnings before interest, taxes, depreciation, and amortization. While the stock price has had a strong run over the last year, the good news for shareholders is that analysts still see further upside. According to CNN, of the 18 analysts covering the stock, the median one-year price target for Clean Harbors is $362, representing a 14.2% gain from today's price. The highest price target in the group is $390, implying a potential 23% gain, while the lowest is $325, still implying a 2.5% gain.
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Jack Delaney 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.
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