{"schema_version":"secwatch.filing_event.v1","accession":"0000950170-22-026465","form_type":"8-K","ticker":"KOP","cik":"0001315257","company_name":"Koppers Holdings Inc.","filed_at":"2022-12-13T23:59:59+00:00","discovered_at":"2026-05-14T18:03:50.096444+00:00","generated_at":"2026-06-21T05:12:40.117121+00:00","sec_items":["5.02","9.01"],"event_type":"other_material","sentiment":"neutral","materiality_score":0.4,"calibrated_materiality_score":0.4,"confidence":"high","headline":"Koppers revises LTIP: RSU vesting to 3 years, adds EBITDA PSU metric, ends stock options","bullets":["RSU vesting reduced from 4 to 3 equal annual installments for future grants under 2020 LTIP.","New PSU performance measure based on 3-year cumulative Adjusted EBITDA thresholds; TSR PSUs retained.","No stock option awards will be granted beginning in 2023; prior awards unchanged.","CEO Ball granted $623,269 in RSUs, $1,246,538 each in EBITDA and TSR PSUs (grant date Jan 4, 2023).","CFO Smith: $187,500 RSU, $187,500 EBITDA PSU, $93,750 TSR PSU; COO Sullivan: $480,000 RSU, $480,000 EBITDA PSU, $240,000 TSR PSU."],"urls":{"canonical":"https://secwatch.observer/filing/0000950170-22-026465","json":"https://secwatch.observer/filing/0000950170-22-026465.json","markdown":"https://secwatch.observer/filing/0000950170-22-026465.md","text":"https://secwatch.observer/filing/0000950170-22-026465.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1315257/000095017022026465/0000950170-22-026465-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1315257/000095017022026465/kop-20221207.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-06-21T05:12:40.117121+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"}