{"schema_version":"secwatch.filing_event.v1","accession":"0001193125-25-060237","form_type":"8-K","ticker":"DCTH","cik":"0000872912","company_name":"DELCATH SYSTEMS, INC.","filed_at":"2025-03-21T23:59:59+00:00","discovered_at":"2026-05-14T18:03:06.566507+00:00","generated_at":"2026-05-24T09:30:15.010281+00:00","sec_items":["4.01","9.01"],"event_type":"other_material","sentiment":"neutral","materiality_score":0.5,"calibrated_materiality_score":0.5,"confidence":"high","headline":"Delcath Systems replaces auditor Marcum with CBIZ CPAs effective March 18, 2025","bullets":["Marcum LLP resigned on March 18, 2025; CBIZ CPAs P.C. engaged as new independent auditor immediately.","No disagreements or reportable events with Marcum for fiscal years 2023, 2024, and through resignation.","The 2023 audit report included a going-concern explanatory paragraph about substantial doubt.","Audit Committee approved the engagement for the fiscal year ending December 31, 2025."],"urls":{"canonical":"https://secwatch.observer/filing/0001193125-25-060237","json":"https://secwatch.observer/filing/0001193125-25-060237.json","markdown":"https://secwatch.observer/filing/0001193125-25-060237.md","text":"https://secwatch.observer/filing/0001193125-25-060237.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/872912/000119312525060237/0001193125-25-060237-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/872912/000119312525060237/d925045d8k.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-05-24T09:30:15.010281+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"}