{"schema_version":"secwatch.filing_event.v1","accession":"0001193125-23-199108","form_type":"8-K","ticker":"KRRO","cik":"0001703647","company_name":"Korro Bio, Inc.","filed_at":"2023-07-31T23:59:59+00:00","discovered_at":"2026-05-14T18:03:34.916748+00:00","generated_at":"2026-06-12T22:10:05.118358+00:00","sec_items":["5.02","9.01"],"event_type":"leadership","sentiment":"neutral","materiality_score":0.6,"calibrated_materiality_score":0.6,"confidence":"high","headline":"CSO Christopher Loose resigns; severance includes equity acceleration tied to Korro merger","bullets":["Christopher Loose resigned as Chief Scientific Officer effective July 28, 2023.","Severance includes 12 months base salary, COBRA coverage, and $201,744.35 target bonus.","Unvested time-based equity awards accelerate only if proposed merger with Korro Bio closes by Dec 31, 2023.","Separation agreement includes standard release of claims and non-disparagement obligations."],"urls":{"canonical":"https://secwatch.observer/filing/0001193125-23-199108","json":"https://secwatch.observer/filing/0001193125-23-199108.json","markdown":"https://secwatch.observer/filing/0001193125-23-199108.md","text":"https://secwatch.observer/filing/0001193125-23-199108.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1703647/000119312523199108/0001193125-23-199108-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1703647/000119312523199108/d533025d8k.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-06-12T22:10:05.118358+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":"fda7d67b55","claim":"Christopher Loose resigned as Chief Scientific Officer at Korro Bio, Inc..","evidence_excerpt":"On July 28, 2023, Christopher Loose, Ph.D., notified Frequency Therapeutics, Inc. (the “Company”) that he would be resigning from his position as Chief Scientific Officer of the Company, effective July 28, 2023","evidence_source":"SEC 8-K Item 5.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/1703647/000119312523199108/0001193125-23-199108-index.htm","confidence":0.95,"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"}