{"filing":{"accession_number":"0000822818-26-000037","cik":"0000822818","ticker":"CLH","company_name":"CLEAN HARBORS INC","form":"8-K","filing_date":"2026-08-12","report_date":"2026-08-12","primary_document":"clh-20260812.htm","primary_document_url":"https://www.sec.gov/Archives/edgar/data/822818/000082281826000037/clh-20260812.htm"},"events":[{"id":27119,"run_id":24693,"accession_number":"0000822818-26-000037","anchor_item_number":"8.01","event_type":"ma_activity","event_domain":"operational","is_material":true,"confidence":0.99,"summary":"Clean Harbors announced entry into a definitive agreement to acquire EnviroServe for $470 million in cash, expected to close in the second half of 2026. This is a material acquisition disclosed under Item 8.01 (Other Events) via press release. The transaction involves a substantial purchase price, strategic expansion of the company's environmental services segment, and anticipated $25 million in cost synergies, making it clearly material to investors.","company_name":"CLEAN HARBORS INC","ticker":"CLH","filing_date":"2026-08-12","form":"8-K","submitted_at":null,"items":[{"id":28508,"accession_number":"0000822818-26-000037","item_number":"8.01","item_title":"Other Events.","event_type":"ma_activity","event_domain":"operational","is_material":true,"confidence":0.99,"reasoning":"Clean Harbors announced entry into a definitive agreement to acquire EnviroServe for $470 million in cash, expected to close in the second half of 2026. This is a material acquisition disclosed under Item 8.01 (Other Events) via press release. The transaction involves a substantial purchase price, strategic expansion of the company's environmental services segment, and anticipated $25 million in cost synergies, making it clearly material to investors.","classifier_version":"claude-haiku-4-5-20251001+prompt-a85dd512","taxonomy_version":"v1.3","classified_at":"2026-08-12T16:27:46.284439+00:00","company_name":"","ticker":null,"filing_date":""}]}],"classifications":[{"id":28508,"accession_number":"0000822818-26-000037","item_number":"8.01","item_title":"Other Events.","event_type":"ma_activity","event_domain":"operational","is_material":true,"confidence":0.99,"reasoning":"Clean Harbors announced entry into a definitive agreement to acquire EnviroServe for $470 million in cash, expected to close in the second half of 2026. This is a material acquisition disclosed under Item 8.01 (Other Events) via press release. The transaction involves a substantial purchase price, strategic expansion of the company's environmental services segment, and anticipated $25 million in cost synergies, making it clearly material to investors.","classifier_version":"claude-haiku-4-5-20251001+prompt-a85dd512","taxonomy_version":"v1.3","classified_at":"2026-08-12T16:27:46.284439+00:00","company_name":"CLEAN HARBORS INC","ticker":"CLH","filing_date":"2026-08-12"}]}