secwatch.observer — SEC 8-K summary ====================================== Issuer: SOUTHERN CO (SO) CIK: 0000092122 Form: 8-K Filed at: 2025-09-15T23:59:59+00:00 Accession: 0000092122-25-000080 Event type: other_material Sentiment: neutral Materiality: 0.30 Item codes: 7.01, 9.01 LLM model: deepseek-v4-flash:cloud@v2 Southern Co adjusts conversion rate for Series 2023A 3.875% notes to 11.9035 shares per $1,000 -------------------------------------------------------------------------------- - Conversion rate adjusted to 11.9035 shares per $1,000 principal effective September 15, 2025. - Adjustment triggered by six quarterly dividends exceeding the $0.70/share Distribution Threshold. - Previously deferred conversion rate increases (each <1%) combined and applied now per indenture terms. - Series 2023A 3.875% Convertible Senior Notes mature December 15, 2025. Source: EDGAR index: https://www.sec.gov/Archives/edgar/data/92122/000009212225000080/0000092122-25-000080-index.htm Primary doc: https://www.sec.gov/Archives/edgar/data/92122/000009212225000080/so-20250915.htm HTML page: https://secwatch.observer/filing/0000092122-25-000080 License: Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer