{"schema_version":"secwatch.filing_event.v1","accession":"0000822818-26-000024","form_type":"8-K","ticker":"CLH","cik":"0000822818","company_name":"CLEAN HARBORS INC","filed_at":"2026-05-14T14:55:52+00:00","discovered_at":"2026-05-14T14:57:01.310532+00:00","generated_at":"2026-05-14T14:57:08.347146+00:00","sec_items":["8.01","9.01"],"event_type":"m_and_a","sentiment":"positive","materiality_score":0.75,"calibrated_materiality_score":0.75,"confidence":"high","headline":"Clean Harbors acquires Terra Nova Solutions for $225M all-cash","bullets":["$225M all-cash acquisition of Terra Nova, a regional hazardous waste provider with 5 sites in the Carolinas.","Terra Nova expected to generate $45-50M annual revenue and ~$15M Adjusted EBITDA.","Clean Harbors anticipates ~$4M annual synergies, implying a post-synergy multiple of 11.8x.","Acquisition adds 150 specialized trucks/tankers and 100+ employees; enhances Technical Services and Field Services."],"urls":{"canonical":"https://secwatch.observer/filing/0000822818-26-000024","json":"https://secwatch.observer/filing/0000822818-26-000024.json","markdown":"https://secwatch.observer/filing/0000822818-26-000024.md","text":"https://secwatch.observer/filing/0000822818-26-000024.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/822818/000082281826000024/0000822818-26-000024-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/822818/000082281826000024/clh-20260514.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-05-14T14:57:08.347146+00:00"},"review":{"review_status":"machine_generated","human_reviewed":false,"corrected":false,"correction_note":null,"correction_timestamp":null,"superseded_by":null,"related_filings":[]},"source_grounded_claims":[],"license":"Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer"}