secwatch.observer — SEC 8-K summary
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Issuer:     CLEAN HARBORS INC (CLH)
CIK:        0000822818
Form:       8-K
Filed at:   2026-05-06T23:59:59+00:00
Accession:  0000822818-26-000017
Event type: earnings
Sentiment:  positive
Materiality: 0.80
Item codes: 2.02, 9.01
LLM model:  deepseek-v4-flash:cloud@v2

Clean Harbors Q1 revenue record $1.46B; raises FY2026 EBITDA and FCF guidance
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- Net income $63.2M ($1.19 diluted EPS) vs $58.7M ($1.09) in Q1 2025; revenue up 2% to $1.46B.
- Adjusted EBITDA rose 6% to $247.9M; margin expanded 60 bps to 17.0%; ES segment margin improved for 16th straight quarter.
- SKSS segment Adjusted EBITDA up 17% YoY; waste oil collected 53M gallons; CFO pricing strategy advanced.
- FY2026 Adjusted EBITDA guidance raised to $1.24-1.30B (midpoint $1.27B); adjusted FCF raised to $490-550M (midpoint $520M).
- Q2 2026 Adjusted EBITDA expected to grow 5-9% YoY; company cites strong demand and PFAS/project services opportunities.

Source:
  EDGAR index:    https://www.sec.gov/Archives/edgar/data/822818/000082281826000017/0000822818-26-000017-index.htm
  Primary doc:    https://www.sec.gov/Archives/edgar/data/822818/000082281826000017/clh-20260506.htm
  HTML page:      https://secwatch.observer/filing/0000822818-26-000017

License: Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer