{"schema_version":"secwatch.filing_event.v1","accession":"0001193125-23-021618","form_type":"8-K","ticker":"VST","cik":"0001692819","company_name":"Vistra Corp.","filed_at":"2023-02-01T23:59:59+00:00","discovered_at":"2026-05-14T18:03:46.169765+00:00","generated_at":"2026-06-20T03:56:01.955741+00:00","sec_items":["5.02","7.01","9.01"],"event_type":"leadership","sentiment":"positive","materiality_score":0.3,"calibrated_materiality_score":0.3,"confidence":"high","headline":"Vistra appoints Julie Lagacy as independent director, expanding board to 11 members","bullets":["Board expanded from 10 to 11 members; Lagacy appointed independent director effective Feb. 1, 2023.","Lagacy served as Chief Sustainability and Strategy Officer at Caterpillar until Jan. 2023; brings ESG and cybersecurity expertise.","She will serve on the Sustainability & Risk Committee and the Social Responsibility & Compensation Committee.","Director compensation: $100k annual cash retainer, $10k per committee, $160k annual RSU grant.","Lagacy holds a Certificate in Cybersecurity Oversight from Carnegie Mellon University."],"urls":{"canonical":"https://secwatch.observer/filing/0001193125-23-021618","json":"https://secwatch.observer/filing/0001193125-23-021618.json","markdown":"https://secwatch.observer/filing/0001193125-23-021618.md","text":"https://secwatch.observer/filing/0001193125-23-021618.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1692819/000119312523021618/0001193125-23-021618-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1692819/000119312523021618/d415684d8k.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-06-20T03:56:01.955741+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":"6831b26d9f","claim":"Julie Lagacy was elected as Director at Vistra Corp..","evidence_excerpt":"the Board increased the size of the Board from 10 members to 11 members and elected Julie Lagacy to the Board, effective immediately.","evidence_source":"SEC 8-K Item 5.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/1692819/000119312523021618/0001193125-23-021618-index.htm","confidence":0.95,"family_label":"Executive change","details":[{"label":"Action","value":"elected"},{"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"}