{"schema_version":"secwatch.filing_event.v1","accession":"0001104659-21-144727","form_type":"8-K","ticker":"HRGN","cik":"0001563665","company_name":"Harvard Apparatus Regenerative Technology, Inc.","filed_at":"2021-11-30T23:59:59+00:00","discovered_at":"2026-05-14T18:04:13.049816+00:00","generated_at":"2026-06-28T04:51:20.715301+00:00","sec_items":["1.01","3.02","5.02","9.01"],"event_type":"leadership","sentiment":"positive","materiality_score":0.75,"calibrated_materiality_score":0.75,"confidence":"high","headline":"Biostage appoints David Green as interim CEO; he invests $250,000 in private placement","bullets":["David Green appointed Interim CEO and Chairman; Jason Chen becomes Vice Chairman.","Green invests $250,000 for 72,464 shares and warrant for 36,232 shares at $3.45 (50% premium to Nov 26 close).","Green's salary set at Massachusetts minimum wage ($35,568) plus option grant of 374,094 shares (2/3 vest on milestones).","Green previously served as CEO and Chairman until 2015; returns to lead Biostage's esophageal implant development."],"urls":{"canonical":"https://secwatch.observer/filing/0001104659-21-144727","json":"https://secwatch.observer/filing/0001104659-21-144727.json","markdown":"https://secwatch.observer/filing/0001104659-21-144727.md","text":"https://secwatch.observer/filing/0001104659-21-144727.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1563665/000110465921144727/0001104659-21-144727-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1563665/000110465921144727/tm2134175d1_8k.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-06-28T04:51:20.715301+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":[{"claim_id":"939606c17e","claim":"David Green was appointed as Chairman of the Board at Harvard Apparatus Regenerative Technology, Inc..","evidence_excerpt":"Mr. Green also joined the Board as a Class II director and was appointed Chairman of the Board.","evidence_source":"SEC 8-K Item 5.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/1563665/000110465921144727/0001104659-21-144727-index.htm","confidence":0.95,"family_label":"Executive change","details":[{"label":"Action","value":"appointed"},{"label":"Role","value":"Chairman of the Board"}],"fact_type":"executive_change"},{"claim_id":"c8f88152c6","claim":"David Green was appointed as Interim Chief Executive Officer at Harvard Apparatus Regenerative Technology, Inc..","evidence_excerpt":"Effective as of November 26, 2021, the Company appointed Mr. Green as Interim Chief Executive Officer.","evidence_source":"SEC 8-K Item 5.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/1563665/000110465921144727/0001104659-21-144727-index.htm","confidence":0.95,"family_label":"Executive change","details":[{"label":"Action","value":"appointed"},{"label":"Role","value":"Interim Chief Executive Officer"}],"fact_type":"executive_change"},{"claim_id":"d016149d97","claim":"Jason Chen was appointed as Vice Chairman of the Board at Harvard Apparatus Regenerative Technology, Inc..","evidence_excerpt":"the Company’s existing Chairman, Jason Chen, was appointed Vice Chairman of the Board.","evidence_source":"SEC 8-K Item 5.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/1563665/000110465921144727/0001104659-21-144727-index.htm","confidence":0.95,"family_label":"Executive change","details":[{"label":"Action","value":"appointed"},{"label":"Role","value":"Vice Chairman of the Board"}],"fact_type":"executive_change"}],"license":"Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer"}