{"schema_version":"secwatch.filing_event.v1","accession":"0001193125-26-193927","form_type":"8-K","ticker":"LXEO","cik":"0001907108","company_name":"Lexeo Therapeutics, Inc.","filed_at":"2026-04-30T23:59:59+00:00","discovered_at":"2026-05-14T18:02:33.267717+00:00","generated_at":"2026-05-15T01:09:36.565499+00:00","sec_items":["5.02"],"event_type":"leadership","sentiment":"neutral","materiality_score":0.35,"calibrated_materiality_score":0.35,"confidence":"high","headline":"Lexeo appoints Dr. Laura Sepp-Lorenzino to board and Science & Technology Committee","bullets":["Dr. Sepp-Lorenzino appointed April 28, 2026; term expires at 2028 annual meeting.","She joins Science & Technology Committee; prior CSO of Intellia Therapeutics (2019-2025).","Compensation: $40k annual cash, initial option for 50,000 shares; first annual grant in 2027.","Previously held leadership roles at Vertex, Alnylam, and Merck in RNA therapeutics/oncology."],"urls":{"canonical":"https://secwatch.observer/filing/0001193125-26-193927","json":"https://secwatch.observer/filing/0001193125-26-193927.json","markdown":"https://secwatch.observer/filing/0001193125-26-193927.md","text":"https://secwatch.observer/filing/0001193125-26-193927.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1907108/000119312526193927/0001193125-26-193927-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1907108/000119312526193927/lxeo-20260428.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-05-15T01:09:36.565499+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":"e2cbae2e2d","claim":"Dr. Laura Sepp-Lorenzino was appointed as Director at Lexeo Therapeutics, Inc..","evidence_excerpt":"On April 28, 2026 (the “ Appointment Date ”), Dr. Laura Sepp-Lorenzino was appointed to the board of directors (the “ Board ”) of Lexeo Therapeutics, Inc.","evidence_source":"SEC 8-K Item 5.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/1907108/000119312526193927/0001193125-26-193927-index.htm","confidence":0.95,"family_label":"Executive change","details":[{"label":"Action","value":"appointed"},{"label":"Role","value":"Director"}],"fact_type":"executive_change"}],"license":"Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer"}