---
schema_version: "secwatch.filing_event.v1"
accession: "0000822818-25-000004"
form_type: "8-K"
ticker: "CLH"
cik: "0000822818"
company_name: "CLEAN HARBORS INC"
filed_at: "2025-02-19T23:59:59+00:00"
generated_at: "2026-05-26T12:49:12.704041+00:00"
event_type: "earnings"
sentiment: "neutral"
materiality_score: 0.75
calibrated_materiality_score: 0.75
confidence: "high"
source: SEC EDGAR
---

# Clean Harbors Q4 revenue up 7% to $1.43B; FY2025 adj EBITDA guide $1.15-1.21B

## Summary
- Q4 revenue $1.43B (+7% YoY); net income $84.0M, EPS $1.55; adj EBITDA $257.2M.
- FY2024 revenue $5.89B (+9%); net income $402.3M, EPS $7.42; adj EBITDA $1.12B.
- ES segment Q4 revenue +9%, adj EBITDA +11%; incineration utilization 94%.
- SKSS segment revenue -5% on weak base oil market; shifted to charge-for-oil in Nov.
- FY2025 guidance: adj EBITDA $1.15-1.21B; adj free cash flow $430-490M.

## SEC filing metadata
- accession: 0000822818-25-000004
- form_type: 8-K
- ticker: CLH
- cik: 0000822818
- company_name: CLEAN HARBORS INC
- filed_at: 2025-02-19T23:59:59+00:00
- event_type: earnings
- sentiment: neutral
- materiality_score: 0.75
- calibrated_materiality_score: 0.75
- confidence: high
- sec_items: 2.02, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/822818/000082281825000004/0000822818-25-000004-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/822818/000082281825000004/clh-20250219.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0000822818-25-000004
- JSON: https://secwatch.observer/filing/0000822818-25-000004.json
- Plain text: https://secwatch.observer/filing/0000822818-25-000004.txt

This AI-assisted summary is a reading aid. Review the linked SEC EDGAR filing before relying on any specific claim.