Southern Co SEC filings SO
Southern Co has 1,010 filings in SEC EDGAR's recent list, going back to Feb 17, 2021. Its latest annual report, Form ARS, was filed on Apr 3, 2026 for the period ended Dec 31, 2025. The latest quarterly report (Form 10-Q) was filed on Nov 5, 2026, covering the quarter ended Sep 30, 2026. The most recent current report (Form 8-K) was filed on Nov 5, 2026 (results of operations). The company's fiscal year ends on December 31.
| Form | Description | Filed | Period |
|---|---|---|---|
| 11-K | Employee savings plan report | Jun 26, 2026 | Dec 31, 2025 |
| SD | Specialized disclosure (conflict minerals) | May 20, 2026 | — |
| CERT | Nyse certification | Nov 7, 2025 | — |
| 8-A12B | Filing | Nov 6, 2025 | — |
| 11-K | Employee savings plan report | Jun 27, 2025 | Dec 31, 2024 |
| SD | Specialized disclosure (conflict minerals) | May 21, 2025 | — |
| PX14A6G | Bowyer research - px14a6g | May 20, 2025 | — |
| PX14A6G | Inspire investing, llc - px14a6g | May 16, 2025 | — |
| PX14A6G | Filing | Apr 21, 2025 | — |
| PX14A6G | Filing | Apr 17, 2025 | — |
| CERT | Nyse certification | Jan 13, 2025 | — |
| 8-A12B | Filing | Jan 13, 2025 | — |
| 11-K | Employee savings plan report | Jun 28, 2024 | Dec 31, 2023 |
| SD | Specialized disclosure (conflict minerals) | May 22, 2024 | — |
| PX14A6G | Filing | May 2, 2024 | — |
| PX14A6G | Filing | Apr 22, 2024 | — |
| 11-K | Employee savings plan report | Jun 28, 2023 | Dec 31, 2022 |
| SD | Specialized disclosure (conflict minerals) | May 24, 2023 | — |
| PX14A6G | Notice of exempt solicitation | May 8, 2023 | — |
| PX14A6G | Filing | Apr 24, 2023 | — |
| PX14A6G | Filing | Apr 21, 2023 | — |
| 25-NSE | Delisting notice | Aug 1, 2022 | — |
| 11-K | Employee savings plan report | Jun 24, 2022 | Dec 31, 2021 |
| SD | Specialized disclosure (conflict minerals) | May 27, 2022 | — |
| PX14A6G | Notice of exempt solicitation | Apr 29, 2022 | — |
| 25-NSE | Delisting notice | Oct 18, 2021 | — |
| UPLOAD | Letter from the SEC | Oct 13, 2021 | — |
| CORRESP | Letter to the SEC | Oct 12, 2021 | — |
| UPLOAD | Letter from the SEC | Oct 6, 2021 | — |
| CERT | Nyse certification | Sep 16, 2021 | — |
| 8-A12B | Filing | Sep 16, 2021 | — |
| CORRESP | Letter to the SEC | Aug 23, 2021 | — |
| UPLOAD | Letter from the SEC | Aug 16, 2021 | — |
| 11-K | Employee savings plan report | Jun 28, 2021 | Dec 31, 2020 |
| SD | Specialized disclosure (conflict minerals) | Jun 1, 2021 | — |
| PX14A6G | Notice of exempt solicitation | Apr 26, 2021 | — |
Showing 36 filings. Main filings leave out insider and ownership forms such as Form 4; choose a type above to see them. Each form opens on SEC.gov. Older filings are on SEC EDGAR.
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Company profile
- Industry
- Electric Services (SIC 4911)
- Listed as
- SO (NYSE), SOJC (NYSE), SOJD (NYSE), SOJE (NYSE), SOJF (NYSE), SOMN (NYSE)
- Fiscal year ends
- December 31
- Incorporated in
- DE
- Headquarters
- Atlanta, GA
- SEC filer status
- Large accelerated filer
- SEC CIK
- 92122
- Former names
- SOUTHERN CO (until Nov 5, 2026)
Other Electric Services companies
Source: SEC EDGAR filings. This is company-reported data, not investment advice.