{"schema_version":"secwatch.filing_event.v1","accession":"0001193125-25-267201","form_type":"8-K","ticker":"NEU","cik":"0001282637","company_name":"NEWMARKET CORP","filed_at":"2025-11-05T23:59:59+00:00","discovered_at":"2026-05-14T18:02:39.025019+00:00","generated_at":"2026-05-17T00:12:09.932561+00:00","sec_items":["5.02"],"event_type":"leadership","sentiment":"neutral","materiality_score":0.45,"calibrated_materiality_score":0.45,"confidence":"high","headline":"NewMarket Controller and PAO Ann Pietrantoni resigns; CFO Fitzgerald to take over PAO role","bullets":["Ann P. Pietrantoni, Controller and Principal Accounting Officer, resigns effective November 26, 2025 to pursue other opportunities.","Resignation is not due to any dispute or disagreement with the Company.","Timothy K. Fitzgerald, Vice President and CFO, will serve as interim Principal Accounting Officer."],"urls":{"canonical":"https://secwatch.observer/filing/0001193125-25-267201","json":"https://secwatch.observer/filing/0001193125-25-267201.json","markdown":"https://secwatch.observer/filing/0001193125-25-267201.md","text":"https://secwatch.observer/filing/0001193125-25-267201.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1282637/000119312525267201/0001193125-25-267201-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1282637/000119312525267201/d751254d8k.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-05-17T00:12:09.932561+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":[],"license":"Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer"}