{"schema_version":"secwatch.filing_event.v1","accession":"0001315257-26-000004","form_type":"8-K","ticker":"KOP","cik":"0001315257","company_name":"Koppers Holdings Inc.","filed_at":"2026-01-09T23:59:59+00:00","discovered_at":"2026-05-14T18:02:34.769180+00:00","generated_at":"2026-05-16T11:02:19.381686+00:00","sec_items":["5.02","8.01","9.01"],"event_type":"leadership","sentiment":"neutral","materiality_score":0.55,"calibrated_materiality_score":0.55,"confidence":"high","headline":"Koppers CFO Jimmi Sue Smith retires; Bradley Pearce named interim CFO","bullets":["Jimmi Sue Smith retired as CFO Jan 5, 2026; remains Treasurer/advisor through Feb 28, 2026.","Bradley Pearce, Chief Accounting Officer since May 2019, named interim CFO and CAO.","Company conducting external search for permanent CFO successor.","Pearce's base salary increased to $400,000; cash incentive multiplier raised to 60% from 40%.","Retirement not due to any disagreement or issues with financial statements or policies."],"urls":{"canonical":"https://secwatch.observer/filing/0001315257-26-000004","json":"https://secwatch.observer/filing/0001315257-26-000004.json","markdown":"https://secwatch.observer/filing/0001315257-26-000004.md","text":"https://secwatch.observer/filing/0001315257-26-000004.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1315257/000131525726000004/0001315257-26-000004-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1315257/000131525726000004/kop-20260105.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-05-16T11:02:19.381686+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"}