{"schema_version":"secwatch.filing_event.v1","accession":"0001493152-24-027113","form_type":"8-K","ticker":"SER","cik":"0001708599","company_name":"Serina Therapeutics, Inc.","filed_at":"2024-07-12T23:59:59+00:00","discovered_at":"2026-05-14T18:03:14.199505+00:00","generated_at":"2026-05-31T21:10:39.734999+00:00","sec_items":["5.02"],"event_type":"leadership","sentiment":"neutral","materiality_score":0.45,"calibrated_materiality_score":0.45,"confidence":"high","headline":"Serina Therapeutics COO Tacey Viegas to retire July 15; consulting agreement extends stock options","bullets":["Tacey Viegas notified retirement as COO effective July 15, 2024.","Separation agreement provides 12 months of base salary plus $1,000/month.","Consulting agreement extends options on 341,889 shares at $0.06 per share.","No other compensation under consulting agreement beyond option extension."],"urls":{"canonical":"https://secwatch.observer/filing/0001493152-24-027113","json":"https://secwatch.observer/filing/0001493152-24-027113.json","markdown":"https://secwatch.observer/filing/0001493152-24-027113.md","text":"https://secwatch.observer/filing/0001493152-24-027113.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1708599/000149315224027113/0001493152-24-027113-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1708599/000149315224027113/form8-k.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-05-31T21:10:39.734999+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":"cb2d80e0f8","claim":"Tacey Viegas departed as Chief Operating Officer at Serina Therapeutics, Inc..","evidence_excerpt":"On July 9, 2024, Tacey Viegas, Chief Operating Officer of Serina Therapeutics, Inc. (the “ Company ”), notified the Company that he will retire effective July 15, 2024","evidence_source":"SEC 8-K Item 5.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/1708599/000149315224027113/0001493152-24-027113-index.htm","confidence":0.95,"family_label":"Executive change","details":[{"label":"Action","value":"retire"},{"label":"Role","value":"Chief Operating Officer"}],"fact_type":"executive_change"}],"license":"Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer"}