{"schema_version":"secwatch.filing_event.v1","accession":"0001564590-21-041927","form_type":"8-K","ticker":"KOP","cik":"0001315257","company_name":"Koppers Holdings Inc.","filed_at":"2021-08-06T23:59:59+00:00","discovered_at":"2026-05-14T18:04:17.591639+00:00","generated_at":"2026-06-29T20:09:02.443439+00:00","sec_items":["5.02","8.01","9.01"],"event_type":"leadership","sentiment":"neutral","materiality_score":0.5,"calibrated_materiality_score":0.5,"confidence":"high","headline":"Koppers CFO Michael Zugay to retire Dec 31, 2021; Jimmi Sue Smith named successor","bullets":["CFO Michael Zugay retiring effective December 31, 2021, after seven years as CFO.","Jimmi Sue Smith, current VP Finance and Treasurer, appointed CFO and Treasurer effective January 1, 2022.","Smith previously served as SVP & CFO of EQT Corporation and holds accounting and law degrees.","Zugay's retirement is a planned succession; CEO Leroy Ball praised his leadership.","Smith will report to CEO Ball and oversee global finance, treasury, and capital markets."],"urls":{"canonical":"https://secwatch.observer/filing/0001564590-21-041927","json":"https://secwatch.observer/filing/0001564590-21-041927.json","markdown":"https://secwatch.observer/filing/0001564590-21-041927.md","text":"https://secwatch.observer/filing/0001564590-21-041927.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1315257/000156459021041927/0001564590-21-041927-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1315257/000156459021041927/kop-8k_20210806.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-06-29T20:09:02.443439+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"}