{"schema_version":"secwatch.filing_event.v1","accession":"0001104659-21-090711","form_type":"8-K","ticker":"HRGN","cik":"0001563665","company_name":"Harvard Apparatus Regenerative Technology, Inc.","filed_at":"2021-07-09T23:59:59+00:00","discovered_at":"2026-05-14T18:04:18.589815+00:00","generated_at":"2026-06-30T06:22:22.491836+00:00","sec_items":["4.01"],"event_type":"other_material","sentiment":"neutral","materiality_score":0.5,"calibrated_materiality_score":0.5,"confidence":"high","headline":"Biostage replaces auditor RSM with Wei, Wei & Co. effective July 6, 2021","bullets":["RSM US LLP notified Biostage on May 25, 2021 that client-auditor relationship ceased.","Audit Committee engaged Wei, Wei & Co., LLP as new independent auditor on July 6, contingent on client acceptance.","No consultations with Wei on accounting principles or disagreements/reportable events occurred."],"urls":{"canonical":"https://secwatch.observer/filing/0001104659-21-090711","json":"https://secwatch.observer/filing/0001104659-21-090711.json","markdown":"https://secwatch.observer/filing/0001104659-21-090711.md","text":"https://secwatch.observer/filing/0001104659-21-090711.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1563665/000110465921090711/0001104659-21-090711-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1563665/000110465921090711/tm2121907d1_8k.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-06-30T06:22:22.491836+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"}