Clean Harbors' stock fell sharply by 7.27% during intraday trading on Wednesday, following the release of its first-quarter 2026 financial results.

The environmental services company reported quarterly revenue of $1.46 billion, which slightly missed the analyst consensus estimate of $1.47 billion. Additionally, its adjusted EBITDA of $247.9 million came in below the expected $251.1 million. While the company posted earnings per share of $1.19, beating the $1.16 estimate, and raised its full-year guidance for adjusted EBITDA and free cash flow, the market reacted negatively to the top-line and EBITDA shortfalls.

The company noted that its Safety-Kleen Sustainability Services (SKSS) segment benefited from pricing strategies and a late-quarter surge in base oil pricing. However, challenging weather conditions impacted some collection and service businesses during the quarter.