{"schema_version":"secwatch.filing_event.v1","accession":"0000950170-25-040247","form_type":"8-K/A","ticker":"GERN","cik":"0000886744","company_name":"GERON CORP","filed_at":"2025-03-17T23:59:59+00:00","discovered_at":"2026-05-14T18:03:06.686437+00:00","generated_at":"2026-05-24T17:21:52.351984+00:00","sec_items":["5.02"],"event_type":"leadership","sentiment":"neutral","materiality_score":0.6,"calibrated_materiality_score":0.6,"confidence":"high","headline":"Geron appoints Dawn C. Bir as Interim CEO, approves $750K salary and 180K option award","bullets":["Dr. Scarlett departed as President, CEO and Chairman on March 10; stays as employee through March 31.","Dawn C. Bir, Board member since 2019, named Interim President & CEO effective March 10, 2025.","Bir receives annual base salary of $750,000; option to purchase 180,000 shares under 2018 EIP.","Option vests on earlier of first anniversary of 2025 Annual Meeting date or next annual meeting.","Bir not eligible for incentive bonus or severance plan during interim role."],"urls":{"canonical":"https://secwatch.observer/filing/0000950170-25-040247","json":"https://secwatch.observer/filing/0000950170-25-040247.json","markdown":"https://secwatch.observer/filing/0000950170-25-040247.md","text":"https://secwatch.observer/filing/0000950170-25-040247.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/886744/000095017025040247/0000950170-25-040247-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/886744/000095017025040247/gern-20250310.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-05-24T17:21:52.351984+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":"79bd1bc8bd","claim":"John A. Scarlett resigned as President, Chief Executive Officer and Chairman at GERON CORP.","evidence_excerpt":"Effective March 10, 2025, the service of John A. Scarlett, M.D. as the President, Chief Executive Officer and Chairman of the Board of Directors (the “Board”) of Geron Corporation (the “Company” or “Geron”) concluded and, in connection therewith, Dr. Scarlett resigned from the Board.","evidence_source":"SEC 8-K Item 5.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/886744/000095017025040247/0000950170-25-040247-index.htm","confidence":0.95,"family_label":"Executive change","details":[{"label":"Action","value":"resigned"},{"label":"Role","value":"President, Chief Executive Officer and Chairman"}],"fact_type":"executive_change"},{"claim_id":"ca917f9058","claim":"Elizabeth G. O'Farrell was appointed as Chair of the Board at GERON CORP.","evidence_excerpt":"In addition, effective March 10, 2025, Ms. Elizabeth G. O’Farrell, currently the Lead Independent Director of the Board, was appointed Chair of the Board.","evidence_source":"SEC 8-K Item 5.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/886744/000095017025040247/0000950170-25-040247-index.htm","confidence":0.95,"family_label":"Executive change","details":[{"label":"Action","value":"appointed"},{"label":"Role","value":"Chair of the Board"}],"fact_type":"executive_change"},{"claim_id":"fd381d3b82","claim":"Dawn C. Bir was appointed as Interim President and Chief Executive Officer at GERON CORP.","evidence_excerpt":"Also, effective March 10, 2025, Dawn C. Bir, a current member of the Board, was appointed as the Interim President and Chief Executive Officer of Geron","evidence_source":"SEC 8-K Item 5.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/886744/000095017025040247/0000950170-25-040247-index.htm","confidence":0.95,"family_label":"Executive change","details":[{"label":"Action","value":"appointed"},{"label":"Role","value":"Interim President and Chief Executive Officer"}],"fact_type":"executive_change"}],"license":"Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer"}