{"schema_version":"secwatch.filing_event.v1","accession":"0001193125-24-165684","form_type":"8-K","ticker":"KRRO","cik":"0001703647","company_name":"Korro Bio, Inc.","filed_at":"2024-06-21T23:59:59+00:00","discovered_at":"2026-05-14T18:03:19.665724+00:00","generated_at":"2026-06-01T02:53:14.573731+00:00","sec_items":["5.02"],"event_type":"leadership","sentiment":"negative","materiality_score":0.6,"calibrated_materiality_score":0.6,"confidence":"high","headline":"Korro Bio Chief Scientific Officer Steve Colletti to resign effective August 2, 2024","bullets":["Steve Colletti, Ph.D., notified Korro Bio of his resignation as Chief Scientific Officer on June 17, 2024.","His resignation is effective August 2, 2024.","Korro Bio is a biotechnology company focused on RNA editing, traded on Nasdaq under ticker KRRO."],"urls":{"canonical":"https://secwatch.observer/filing/0001193125-24-165684","json":"https://secwatch.observer/filing/0001193125-24-165684.json","markdown":"https://secwatch.observer/filing/0001193125-24-165684.md","text":"https://secwatch.observer/filing/0001193125-24-165684.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1703647/000119312524165684/0001193125-24-165684-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1703647/000119312524165684/d847854d8k.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-06-01T02:53:14.573731+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":"d3ca3903f9","claim":"Steve Colletti resigned as Chief Scientific Officer at Korro Bio, Inc..","evidence_excerpt":"On June 17, 2024, Steve Colletti, Ph.D., notified Korro Bio, Inc. of his intent to resign as its Chief Scientific Officer effective August 2, 2024.","evidence_source":"SEC 8-K Item 5.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/1703647/000119312524165684/0001193125-24-165684-index.htm","confidence":1.0,"family_label":"Executive change","details":[{"label":"Action","value":"resigned"},{"label":"Role","value":"Chief Scientific Officer"}],"fact_type":"executive_change"}],"license":"Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer"}