Southern Co SEC filings SOMN
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 |
|---|---|---|---|
| 8-K |
Current report
Results of operations
|
Nov 5, 2026 | Nov 5, 2026 |
| 10-Q | Quarterly report | Nov 5, 2026 | Sep 30, 2026 |
| 8-K |
Current report
Bylaw or fiscal year change, Other events
|
Oct 22, 2026 | Oct 20, 2026 |
| 8-K |
Current report
New debt, Unregistered share sale
|
Aug 6, 2026 | Aug 3, 2026 |
| 8-K |
Current report
Other events
|
Aug 4, 2026 | Aug 3, 2026 |
| 8-K |
Current report
Other events
|
Aug 3, 2026 | Aug 3, 2026 |
| 8-K |
Current report
Results of operations
|
Jul 30, 2026 | Jul 30, 2026 |
| 10-Q | Quarterly report | Jul 30, 2026 | Jun 30, 2026 |
| 11-K | Employee savings plan report | Jun 26, 2026 | Dec 31, 2025 |
| 424B2 | Prospectus | Jun 8, 2026 | — |
| 8-K |
Current report
Other events
|
Jun 8, 2026 | Jun 8, 2026 |
| S-3ASR | Automatic shelf registration | Jun 5, 2026 | — |
| SD | Specialized disclosure (conflict minerals) | May 20, 2026 | — |
| 8-K |
Current report
Shareholder vote results
|
May 15, 2026 | May 13, 2026 |
| DEFA14A | Additional proxy material | May 5, 2026 | — |
| 8-K |
Current report
Results of operations
|
Apr 30, 2026 | Apr 30, 2026 |
| 10-Q | Quarterly report | Apr 30, 2026 | Mar 31, 2026 |
| ARS | Annual report to shareholders | Apr 3, 2026 | Dec 31, 2025 |
| DEFA14A | Additional proxy material | Apr 3, 2026 | — |
| DEF 14A | Proxy statement | Apr 3, 2026 | May 13, 2026 |
| PRE 14A | Preliminary proxy statement | Mar 23, 2026 | May 13, 2026 |
| 8-K |
Current report
Other events
|
Mar 19, 2026 | Mar 16, 2026 |
| 424B2 | Prospectus | Mar 17, 2026 | — |
| FWP | Free writing prospectus | Mar 16, 2026 | — |
| 424B5 | Prospectus supplement | Mar 16, 2026 | — |
| 8-K |
Current report
Material agreement, New debt
|
Feb 25, 2026 | Feb 20, 2026 |
| 8-K |
Current report
Results of operations
|
Feb 19, 2026 | Feb 19, 2026 |
| 10-K | Annual report | Feb 19, 2026 | Dec 31, 2025 |
| 8-K/A |
Amended current report
Officer or director change
|
Feb 17, 2026 | Jul 21, 2025 |
| 8-K |
Current report
Other events
|
Dec 19, 2025 | Dec 19, 2025 |
| 8-K |
Current report
Other events
|
Dec 10, 2025 | Dec 9, 2025 |
| CERT | Nyse certification | Nov 7, 2025 | — |
| 8-A12B | Filing | Nov 6, 2025 | — |
| 8-K |
Current report
Other events
|
Nov 6, 2025 | Nov 3, 2025 |
| 424B2 | Prospectus | Nov 4, 2025 | — |
| FWP | Free writing prospectus | Nov 4, 2025 | — |
| 424B5 | Prospectus supplement | Nov 3, 2025 | — |
| 8-K |
Current report
Results of operations
|
Oct 30, 2025 | Oct 30, 2025 |
| 10-Q | Quarterly report | Oct 30, 2025 | Sep 30, 2025 |
| 8-K |
Current report
Regulation FD disclosure
|
Sep 15, 2025 | Sep 15, 2025 |
| 8-K |
Current report
Results of operations
|
Jul 31, 2025 | Jul 31, 2025 |
| 10-Q | Quarterly report | Jul 31, 2025 | Jun 30, 2025 |
| 8-K |
Current report
Officer or director change
|
Jul 23, 2025 | Jul 21, 2025 |
| 8-K/A |
Amended current report
Officer or director change
|
Jul 18, 2025 | Jul 10, 2025 |
| 8-K |
Current report
Officer or director change
|
Jul 11, 2025 | Jul 10, 2025 |
| 8-K |
Current report
Other events
|
Jul 1, 2025 | Jul 1, 2025 |
| 11-K | Employee savings plan report | Jun 27, 2025 | Dec 31, 2024 |
| 8-K |
Current report
New debt, Unregistered share sale
|
May 27, 2025 | May 20, 2025 |
| 8-K |
Current report
Shareholder vote results
|
May 27, 2025 | May 21, 2025 |
| 8-K/A |
Amended current report
Officer or director change
|
May 27, 2025 | Feb 11, 2025 |
| SD | Specialized disclosure (conflict minerals) | May 21, 2025 | — |
| 8-K |
Current report
Other events
|
May 21, 2025 | May 20, 2025 |
| PX14A6G | Bowyer research - px14a6g | May 20, 2025 | — |
| 8-K |
Current report
Other events
|
May 20, 2025 | May 20, 2025 |
| 8-K |
Current report
Other events
|
May 19, 2025 | May 19, 2025 |
| PX14A6G | Inspire investing, llc - px14a6g | May 16, 2025 | — |
| DEFA14A | Additional proxy material | May 13, 2025 | — |
| 8-K |
Current report
Results of operations
|
May 1, 2025 | May 1, 2025 |
| 10-Q | Quarterly report | May 1, 2025 | Mar 31, 2025 |
| PX14A6G | Filing | Apr 21, 2025 | — |
| PX14A6G | Filing | Apr 17, 2025 | — |
| ARS | Annual report to shareholders | Apr 11, 2025 | Dec 31, 2024 |
| DEFA14A | Additional proxy material | Apr 11, 2025 | — |
| DEF 14A | Proxy statement | Apr 11, 2025 | May 21, 2025 |
| PRE 14A | Preliminary proxy statement | Mar 31, 2025 | May 21, 2025 |
| 8-K |
Current report
Other events
|
Feb 28, 2025 | Feb 25, 2025 |
| 424B2 | Prospectus | Feb 26, 2025 | — |
| FWP | Free writing prospectus | Feb 25, 2025 | — |
| 424B5 | Prospectus supplement | Feb 25, 2025 | — |
| 8-K |
Current report
Results of operations
|
Feb 20, 2025 | Feb 20, 2025 |
| 10-K | Annual report | Feb 20, 2025 | Dec 31, 2024 |
| 8-K |
Current report
Officer or director change
|
Feb 12, 2025 | Feb 11, 2025 |
| 8-K/A |
Amended current report
Officer or director change
|
Feb 11, 2025 | Dec 5, 2024 |
| CERT | Nyse certification | Jan 13, 2025 | — |
| 8-A12B | Filing | Jan 13, 2025 | — |
| 8-K |
Current report
Other events
|
Jan 13, 2025 | Jan 8, 2025 |
| 424B2 | Prospectus | Jan 10, 2025 | — |
| FWP | Free writing prospectus | Jan 8, 2025 | — |
| 424B5 | Prospectus supplement | Jan 8, 2025 | — |
| 8-K |
Current report
Officer or director change
|
Dec 10, 2024 | Dec 5, 2024 |
| 8-K |
Current report
Results of operations
|
Oct 31, 2024 | Oct 31, 2024 |
| 10-Q | Quarterly report | Oct 31, 2024 | Sep 30, 2024 |
| 8-K |
Current report
Other events
|
Sep 9, 2024 | Sep 4, 2024 |
| 424B2 | Prospectus | Sep 5, 2024 | — |
| FWP | Free writing prospectus | Sep 4, 2024 | — |
| 424B5 | Prospectus supplement | Sep 4, 2024 | — |
| 8-K |
Current report
Results of operations
|
Aug 1, 2024 | Aug 1, 2024 |
| 10-Q | Quarterly report | Aug 1, 2024 | Jun 30, 2024 |
| 11-K | Employee savings plan report | Jun 28, 2024 | Dec 31, 2023 |
| 8-K |
Current report
Shareholder vote results
|
May 24, 2024 | May 22, 2024 |
| SD | Specialized disclosure (conflict minerals) | May 22, 2024 | — |
| DEFA14A | Additional proxy material | May 14, 2024 | — |
| 8-K |
Current report
Officer or director change
|
May 13, 2024 | May 7, 2024 |
| 8-K |
Current report
New debt, Unregistered share sale
|
May 9, 2024 | May 9, 2024 |
| 8-K |
Current report
Other events
|
May 7, 2024 | May 6, 2024 |
| 8-K |
Current report
Other events
|
May 6, 2024 | May 6, 2024 |
| 424B2 | Prospectus | May 3, 2024 | — |
| 8-K |
Current report
Other events
|
May 3, 2024 | May 3, 2024 |
| S-8 | Employee stock plan registration | May 3, 2024 | — |
| PX14A6G | Filing | May 2, 2024 | — |
| 8-K |
Current report
Results of operations
|
May 2, 2024 | May 2, 2024 |
| 10-Q | Quarterly report | May 2, 2024 | Mar 31, 2024 |
| 8-K |
Current report
Other events
|
Apr 29, 2024 | Apr 29, 2024 |
| PX14A6G | Filing | Apr 22, 2024 | — |
| ARS | Annual report to shareholders | Apr 12, 2024 | Dec 31, 2023 |
| DEFA14A | Additional proxy material | Apr 12, 2024 | — |
| DEF 14A | Proxy statement | Apr 12, 2024 | May 22, 2024 |
| PRE 14A | Preliminary proxy statement | Apr 1, 2024 | May 22, 2024 |
| 8-K |
Current report
Other events
|
Feb 28, 2024 | Feb 26, 2024 |
| 424B2 | Prospectus | Feb 27, 2024 | — |
| 424B2 | Prospectus | Feb 27, 2024 | — |
| FWP | Free writing prospectus | Feb 26, 2024 | — |
| FWP | Free writing prospectus | Feb 26, 2024 | — |
| 424B5 | Prospectus supplement | Feb 26, 2024 | — |
| 424B5 | Prospectus supplement | Feb 26, 2024 | — |
| S-3ASR | Automatic shelf registration | Feb 16, 2024 | — |
| S-3ASR | Automatic shelf registration | Feb 16, 2024 | — |
| 8-K |
Current report
Results of operations
|
Feb 15, 2024 | Feb 15, 2024 |
| 10-K | Annual report | Feb 15, 2024 | Dec 31, 2023 |
| 8-K/A |
Amended current report
Officer or director change
|
Feb 6, 2024 | Oct 16, 2023 |
| 8-K |
Current report
Other events
|
Feb 1, 2024 | Feb 1, 2024 |
| 8-K |
Current report
Other events
|
Dec 19, 2023 | Dec 19, 2023 |
| 8-K |
Current report
Officer or director change
|
Dec 12, 2023 | Dec 11, 2023 |
| 8-K |
Current report
Results of operations
|
Nov 2, 2023 | Nov 2, 2023 |
| 10-Q | Quarterly report | Nov 2, 2023 | Sep 30, 2023 |
| 8-K |
Current report
Officer or director change
|
Oct 17, 2023 | Oct 16, 2023 |
| 8-K |
Current report
Results of operations, Other events
|
Oct 6, 2023 | Oct 5, 2023 |
| 8-K |
Current report
Other events
|
Sep 8, 2023 | Sep 5, 2023 |
| 424B2 | Prospectus | Sep 6, 2023 | — |
| 424B2 | Prospectus | Sep 6, 2023 | — |
| FWP | Free writing prospectus | Sep 5, 2023 | — |
| FWP | Free writing prospectus | Sep 5, 2023 | — |
| 424B5 | Prospectus supplement | Sep 5, 2023 | — |
| 424B5 | Prospectus supplement | Sep 5, 2023 | — |
| 8-K |
Current report
Other events
|
Aug 30, 2023 | Aug 30, 2023 |
| 8-K |
Current report
Results of operations
|
Aug 3, 2023 | Aug 3, 2023 |
| 10-Q | Quarterly report | Aug 3, 2023 | Jun 30, 2023 |
| 8-K |
Current report
Other events
|
Jul 31, 2023 | Jul 31, 2023 |
| 8-K |
Current report
Officer or director change
|
Jul 18, 2023 | Jul 17, 2023 |
| 8-K/A |
Amended current report
Officer or director change
|
Jul 18, 2023 | Feb 13, 2023 |
| 11-K | Employee savings plan report | Jun 28, 2023 | Dec 31, 2022 |
| 8-K |
Current report
Other events
|
Jun 16, 2023 | Jun 16, 2023 |
| 8-K |
Current report
Shareholder vote results
|
May 26, 2023 | May 24, 2023 |
| 8-K/A |
Amended current report
Officer or director change
|
May 26, 2023 | Jan 4, 2023 |
| SD | Specialized disclosure (conflict minerals) | May 24, 2023 | — |
| 8-K |
Current report
Other events
|
May 18, 2023 | May 15, 2023 |
| DEFA14A | Additional proxy material | May 17, 2023 | — |
| 424B2 | Prospectus | May 16, 2023 | — |
| 424B2 | Prospectus | May 16, 2023 | — |
| FWP | Free writing prospectus | May 15, 2023 | — |
| FWP | Free writing prospectus | May 15, 2023 | — |
| 424B5 | Prospectus supplement | May 15, 2023 | — |
| 424B5 | Prospectus supplement | May 15, 2023 | — |
| PX14A6G | Notice of exempt solicitation | May 8, 2023 | — |
| 8-K |
Current report
Results of operations
|
Apr 27, 2023 | Apr 27, 2023 |
| 10-Q | Quarterly report | Apr 27, 2023 | Mar 31, 2023 |
| PX14A6G | Filing | Apr 24, 2023 | — |
| PX14A6G | Filing | Apr 21, 2023 | — |
| ARS | Annual report to shareholders | Apr 14, 2023 | Dec 31, 2022 |
| DEFA14A | Additional proxy material | Apr 14, 2023 | — |
| DEF 14A | Proxy statement | Apr 14, 2023 | — |
| PRE 14A | Preliminary proxy statement | Mar 31, 2023 | — |
| 8-K |
Current report
New debt, Unregistered share sale
|
Mar 1, 2023 | Feb 28, 2023 |
| 8-K |
Current report
Other events
|
Feb 24, 2023 | Feb 23, 2023 |
| 8-K |
Current report
Other events
|
Feb 23, 2023 | Feb 23, 2023 |
| 8-K |
Current report
Results of operations
|
Feb 16, 2023 | Feb 16, 2023 |
| 10-K | Annual report | Feb 16, 2023 | Dec 31, 2022 |
| 8-K |
Current report
Officer or director change
|
Feb 14, 2023 | Feb 13, 2023 |
| 8-K |
Current report
Officer or director change
|
Feb 7, 2023 | Feb 6, 2023 |
| 8-K |
Current report
Other events
|
Jan 11, 2023 | Jan 11, 2023 |
| 8-K |
Current report
Officer or director change
|
Jan 5, 2023 | Jan 4, 2023 |
| 8-K |
Current report
Other events
|
Dec 20, 2022 | Dec 20, 2022 |
| 8-K |
Current report
Other events
|
Dec 14, 2022 | Dec 14, 2022 |
| 8-K |
Current report
Bylaw or fiscal year change
|
Dec 13, 2022 | Dec 12, 2022 |
| 8-K |
Current report
Officer or director change
|
Nov 21, 2022 | Nov 17, 2022 |
| 8-K |
Current report
Results of operations
|
Oct 27, 2022 | Oct 27, 2022 |
| 10-Q | Quarterly report | Oct 27, 2022 | Sep 30, 2022 |
| 8-K |
Current report
Other events
|
Oct 6, 2022 | Oct 3, 2022 |
| 424B2 | Prospectus | Oct 4, 2022 | — |
| 424B2 | Prospectus | Oct 4, 2022 | — |
| FWP | Free writing prospectus | Oct 3, 2022 | — |
| FWP | Free writing prospectus | Oct 3, 2022 | — |
| 424B5 | Prospectus supplement | Oct 3, 2022 | — |
| 424B5 | Prospectus supplement | Oct 3, 2022 | — |
| 8-K |
Current report
Other events
|
Sep 30, 2022 | Sep 29, 2022 |
| 8-K |
Current report
Officer or director change
|
Aug 17, 2022 | Aug 15, 2022 |
| 25-NSE | Delisting notice | Aug 1, 2022 | — |
| 8-K |
Current report
Results of operations
|
Jul 28, 2022 | Jul 28, 2022 |
| 10-Q | Quarterly report | Jul 28, 2022 | Jun 30, 2022 |
| 11-K | Employee savings plan report | Jun 24, 2022 | Dec 31, 2021 |
| 8-K |
Current report
Other events
|
Jun 24, 2022 | Jun 24, 2022 |
| 8-K |
Current report
Shareholder vote results
|
May 31, 2022 | May 25, 2022 |
| SD | Specialized disclosure (conflict minerals) | May 27, 2022 | — |
| DEFA14A | Additional proxy material | May 10, 2022 | — |
| 8-K |
Current report
Other events
|
May 9, 2022 | May 9, 2022 |
| 424B2 | Prospectus | May 6, 2022 | — |
| FWP | Free writing prospectus | May 5, 2022 | — |
| 424B5 | Prospectus supplement | May 5, 2022 | — |
| PX14A6G | Notice of exempt solicitation | Apr 29, 2022 | — |
| 8-K |
Current report
Results of operations
|
Apr 28, 2022 | Apr 28, 2022 |
Showing 200 filings, the most recent 200. 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.