{"schema_version":"secwatch.filing_event.v1","accession":"0001160661-26-000008","form_type":"8-K","ticker":null,"cik":"0001160661","company_name":"SOUTHERN POWER CO","filed_at":"2026-06-04T14:49:32+00:00","discovered_at":"2026-06-04T14:50:00.210990+00:00","generated_at":"2026-06-04T14:50:11.593664+00:00","sec_items":["8.01","9.01"],"event_type":"debt","sentiment":"neutral","materiality_score":0.5,"calibrated_materiality_score":0.5,"confidence":"high","headline":"Southern Power issues $600M 4.80% Senior Notes due 2031","bullets":["$600M aggregate principal of 4.80% Senior Notes due June 15, 2031.","Notes issued under shelf registration statement (No. 333-289172).","Underwriting agreement dated June 1, 2026 with BMO, BofA, PNC, SMBC.","Third Supplemental Indenture dated June 4, 2026 governs the notes.","Proceeds for general corporate purposes (not specified in filing)."],"urls":{"canonical":"https://secwatch.observer/filing/0001160661-26-000008","json":"https://secwatch.observer/filing/0001160661-26-000008.json","markdown":"https://secwatch.observer/filing/0001160661-26-000008.md","text":"https://secwatch.observer/filing/0001160661-26-000008.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1160661/000116066126000008/0001160661-26-000008-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1160661/000116066126000008/so-20260601.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-06-04T14:50:11.593664+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"}