{"schema_version":"secwatch.filing_event.v1","accession":"0001193125-23-264167","form_type":"8-K","ticker":"NEU","cik":"0001282637","company_name":"NEWMARKET CORP","filed_at":"2023-10-26T23:59:59+00:00","discovered_at":"2026-05-14T18:03:28.522029+00:00","generated_at":"2026-06-09T08:02:44.362987+00:00","sec_items":["5.02","9.01"],"event_type":"leadership","sentiment":"neutral","materiality_score":0.25,"calibrated_materiality_score":0.25,"confidence":"high","headline":"NewMarket elects Lilo Simmons Ukrop to board effective Oct 26, 2023","bullets":["Ukrop fills the vacancy left by Patrick D. Hanley's retirement on August 3, 2023.","She will serve on the Nominating & Corporate Governance and Compensation committees.","Ukrop holds a B.S. in Mechanical Engineering from Tulane and an MBA from UVA Darden.","Her background includes roles at Exxon, Tredegar, and McIlhenny (Tabasco brand).","She is expected to stand for election at the 2024 annual shareholder meeting."],"urls":{"canonical":"https://secwatch.observer/filing/0001193125-23-264167","json":"https://secwatch.observer/filing/0001193125-23-264167.json","markdown":"https://secwatch.observer/filing/0001193125-23-264167.md","text":"https://secwatch.observer/filing/0001193125-23-264167.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1282637/000119312523264167/0001193125-23-264167-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1282637/000119312523264167/d576200d8k.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-06-09T08:02:44.362987+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":"cbf9a224a4","claim":"Lilo Simmons Ukrop was elected as Director at NEWMARKET CORP.","evidence_excerpt":"On October 26, 2023, NewMarket Corporation (the “Company”) issued a press release announcing that its Board of Directors has elected Lilo Simmons Ukrop to the Board of Directors, effective as of October 26, 2023.","evidence_source":"SEC 8-K Item 5.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/1282637/000119312523264167/0001193125-23-264167-index.htm","confidence":0.98,"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"}