{"schema_version":"secwatch.filing_event.v1","accession":"0001193125-24-280510","form_type":"8-K","ticker":"KOP","cik":"0001315257","company_name":"Koppers Holdings Inc.","filed_at":"2024-12-17T23:59:59+00:00","discovered_at":"2026-05-14T18:03:08.060939+00:00","generated_at":"2026-05-29T02:16:57.184346+00:00","sec_items":["1.01","2.03","9.01"],"event_type":"debt","sentiment":"positive","materiality_score":0.55,"calibrated_materiality_score":0.55,"confidence":"high","headline":"Koppers reduces interest rate margin on $494.5M term loan by 50 bps","bullets":["Amendment No. 5 lowers Term Loan B margin from 3.00% to 2.50% for SOFR loans and from 2.00% to 1.50% for base rate loans.","Prepayments within first six months after closing are subject to a 1.00% premium on principal prepaid.","All other material terms, conditions, and covenants under the Credit Agreement remain unchanged."],"urls":{"canonical":"https://secwatch.observer/filing/0001193125-24-280510","json":"https://secwatch.observer/filing/0001193125-24-280510.json","markdown":"https://secwatch.observer/filing/0001193125-24-280510.md","text":"https://secwatch.observer/filing/0001193125-24-280510.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1315257/000119312524280510/0001193125-24-280510-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1315257/000119312524280510/d914413d8k.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-05-29T02:16:57.184346+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"}