{"schema_version":"secwatch.filing_event.v1","accession":"0000950170-25-046746","form_type":"8-K","ticker":"PEPG","cik":"0001835597","company_name":"PepGen Inc.","filed_at":"2025-03-28T23:59:59+00:00","discovered_at":"2026-05-14T18:03:05.175739+00:00","generated_at":"2026-05-24T03:16:14.271721+00:00","sec_items":["5.02"],"event_type":"leadership","sentiment":"neutral","materiality_score":0.6,"calibrated_materiality_score":0.6,"confidence":"high","headline":"PepGen CMO Michelle Mellion resigns, effective April 4, 2025","bullets":["Michelle L. Mellion, MD, resigned as Chief Medical Officer; departure effective April 4, 2025.","Resignation is not due to any disagreement with the company, per the 8-K.","No successor has been announced as of the filing date."],"urls":{"canonical":"https://secwatch.observer/filing/0000950170-25-046746","json":"https://secwatch.observer/filing/0000950170-25-046746.json","markdown":"https://secwatch.observer/filing/0000950170-25-046746.md","text":"https://secwatch.observer/filing/0000950170-25-046746.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1835597/000095017025046746/0000950170-25-046746-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1835597/000095017025046746/pepg-20250324.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-05-24T03:16:14.271721+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":"577311b0ad","claim":"Michelle L. Mellion resigned as Chief Medical Officer at PepGen Inc..","evidence_excerpt":"On March 24, 2025, Michelle L. Mellion, MD resigned from her position as Chief Medical Officer of PepGen Inc.","evidence_source":"SEC 8-K Item 5.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/1835597/000095017025046746/0000950170-25-046746-index.htm","confidence":0.95,"family_label":"Executive change","details":[{"label":"Action","value":"resigned"},{"label":"Role","value":"Chief Medical Officer"}],"fact_type":"executive_change"}],"license":"Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer"}