{"schema_version":"secwatch.filing_event.v1","accession":"0001104659-26-024945","form_type":"8-K","ticker":"DUK","cik":"0001326160","company_name":"Duke Energy CORP","filed_at":"2026-03-09T23:59:59+00:00","discovered_at":"2026-05-14T18:02:34.808687+00:00","generated_at":"2026-05-15T17:32:29.054697+00:00","sec_items":["8.01","9.01"],"event_type":"debt","sentiment":"neutral","materiality_score":0.6,"calibrated_materiality_score":0.6,"confidence":"high","headline":"Duke Energy launches $1B convertible note offering due 2029 to refinance maturing debt","bullets":["Offers $1B aggregate principal of convertible senior notes due 2029; underwriters may purchase additional $150M.","Net proceeds to repay $1.725B of existing 4.125% convertible notes maturing April 15, 2026.","Final observation period for existing convertible notes began March 9, 2026; could affect common stock prices.","Notes are unsecured, unsubordinated, convertible into cash and/or common stock upon satisfaction of conditions."],"urls":{"canonical":"https://secwatch.observer/filing/0001104659-26-024945","json":"https://secwatch.observer/filing/0001104659-26-024945.json","markdown":"https://secwatch.observer/filing/0001104659-26-024945.md","text":"https://secwatch.observer/filing/0001104659-26-024945.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1326160/000110465926024945/0001104659-26-024945-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1326160/000110465926024945/tm268071d2_8k.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-05-15T17:32:29.054697+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"}