{"schema_version":"secwatch.filing_event.v1","accession":"0000092122-23-000017","form_type":"8-K","ticker":"SO","cik":"0000092122","company_name":"SOUTHERN CO","filed_at":"2023-02-23T23:59:59+00:00","discovered_at":"2026-05-14T18:03:48.583721+00:00","generated_at":"2026-06-19T03:52:39.983557+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":"Southern Company proposes $1.5B convertible senior notes offering","bullets":["Proposed offering of $1,500,000,000 aggregate principal amount of convertible senior notes.","Initial purchasers granted option to buy up to an additional $225,000,000 in notes.","Offering is private to qualified institutional buyers under Rule 144A."],"urls":{"canonical":"https://secwatch.observer/filing/0000092122-23-000017","json":"https://secwatch.observer/filing/0000092122-23-000017.json","markdown":"https://secwatch.observer/filing/0000092122-23-000017.md","text":"https://secwatch.observer/filing/0000092122-23-000017.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/92122/000009212223000017/0000092122-23-000017-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/92122/000009212223000017/so-20230223.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-06-19T03:52:39.983557+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"}