{"schema_version":"secwatch.filing_event.v1","accession":"0001437749-25-011884","form_type":"8-K","ticker":"HRGN","cik":"0001563665","company_name":"Harvard Apparatus Regenerative Technology, Inc.","filed_at":"2025-04-14T23:59:59+00:00","discovered_at":"2026-05-14T18:02:48.782759+00:00","generated_at":"2026-05-23T15:26:19.648023+00:00","sec_items":["4.01","9.01"],"event_type":"other_material","sentiment":"neutral","materiality_score":0.4,"calibrated_materiality_score":0.4,"confidence":"high","headline":"Harvard Apparatus Regenerative Tech replaces auditor: Marcum resigns, CBIZ CPAs P.C appointed April 11, 2025","bullets":["Marcum LLP resigned as independent auditor effective April 11, 2025; Audit Committee approved CBIZ CPAs P.C. as successor the same day.","No disagreements with Marcum on accounting principles, disclosure, or audit scope during fiscal 2023, 2024, or through April 14, 2025.","Marcum's reports for fiscal 2023 and 2024 were unqualified but included a going-concern explanatory paragraph.","Marcum's letter concurring with disclosure is filed as Exhibit 16.1."],"urls":{"canonical":"https://secwatch.observer/filing/0001437749-25-011884","json":"https://secwatch.observer/filing/0001437749-25-011884.json","markdown":"https://secwatch.observer/filing/0001437749-25-011884.md","text":"https://secwatch.observer/filing/0001437749-25-011884.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1563665/000143774925011884/0001437749-25-011884-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1563665/000143774925011884/hrgn20250407_8k.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-05-23T15:26:19.648023+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"}