Clean Harbors Inc. (NYSE: CLH) Stock Analysis: Insider Sale Amidst New Highs and Valuation Concerns

Font: Financial Modeling Prep  • Aug 03, 2026

• Clean Harbors Inc. (NYSE: CLH) demonstrates strong financial performance with significant revenue growth and an EPS beat.
• A director at Clean Harbors recently sold 789 shares, reducing their personal stake as the stock reached new highs.
• Despite robust performance, Clean Harbors' stock is considered overvalued, trading 33.0% above its estimated fair value, alongside broader insider selling trends.

Clean Harbors Inc. (NYSE: CLH) is a leading environmental services company that provides parts cleaning, hazardous waste management, and industrial services. The company operates with a market capitalization of approximately $16.52 billion. It competes in a vital sector focused on managing and recycling waste for various industries, ensuring environmental compliance and safety.

The company's stock is seeing notable insider activity. On August 3, 2026, a director, Robertson Andrea, sold 789 shares of Clean Harbors at a price of $314.01 per share. This transaction leaves the director with a remaining holding of 8,979 shares in the company, indicating a reduction in their personal stake.

This sale occurs as Clean Harbors stock reaches new highs. The stock recently hit a new 52-week high of $335.94 after reporting strong quarterly results, as highlighted by defenseworld.net. The company announced earnings per share (EPS) of $3.22, which is the profit earned per share. This figure beat the consensus estimate of $2.81.

Financially, the company is performing well. It generated revenue of $1.74 billion, a year-over-year increase of 11.9%. Clean Harbors also maintains a net margin of 6.53%, showing how much profit it makes per dollar of revenue. Its return on equity, which measures profitability relative to shareholder investment, stands at 14.37%.

Despite strong financial performance, some indicators suggest caution. As highlighted by GuruFocus, the stock is considered overvalued, trading 33.0% above its estimated fair value of $245.30. This aligns with a broader trend of insider sales over the last three months, which total $0.20 million with no recorded insider purchases.