Skip to main content
SOUTHERN CO logo

SOUTHERN CO — Investor Relations & Filings

Ticker · SO ISIN · US8425878001 LEI · 549300FC3G3YU2FBZD92 US Electricity, gas, steam and air conditioning supply
Open in API
Filings indexed 4,766 across all filing types
Latest filing 2026-06-05 Capital/Financing Update
Country US United States of America
Listing US SO

About SOUTHERN CO

https://www.southerncompany.com/

Southern Company is an energy holding company engaged in the generation, transmission, and distribution of electricity, as well as the distribution of natural gas. As a leading producer of electricity in the United States and a major wholesale provider in the Southeast, it serves approximately 9 million customers. The company focuses on delivering clean, safe, reliable, and affordable energy solutions. Its business includes the development, construction, acquisition, and management of a diverse portfolio of generation assets, encompassing renewable energy projects and advanced nuclear facilities like Plant Vogtle, to meet the energy needs of communities and businesses.

Recent filings

Filing Released Lang Actions
S-3ASR
Capital/Financing Update Classification · 85% confidence The document is a Registration Statement on Form S-3 filed with the SEC, containing a full prospectus for a shelf registration of equity and debt securities. It is clearly a financing/capital markets document used to register new securities offerings rather than an earnings release, management report, or an AGM material. This fits best under Capital/Financing Update (CAP).
2026-06-05 English
SD
Regulatory Filings Classification · 90% confidence The document is an SEC Form SD “Specialized Disclosure Report” filed under Rule 13p-1 for conflict minerals, containing detailed compliance disclosures but no financial statements, management changes, earnings, or other report types. It is a standalone regulatory filing under the Securities Exchange Act and does not fit any more specific categories, so it is classified as a general regulatory filing (RNS).
2026-05-20 English
8-K
Declaration of Voting Results & Voting Rights Announcements Classification · 95% confidence The document is an SEC Form 8-K filing containing Item 5.07: "Submission of Matters to a Vote of Security Holders," listing detailed vote counts and outcomes for proposals at the Annual Meeting of Stockholders. This is a classic case of a Declaration of Voting Results & Voting Rights Announcement, matching code DVA.
2026-05-15 English
DEFA14A
Proxy Solicitation & Information Statement
2026-05-05 English
Major Shareholding Notification 2026
Major Shareholding Notification
2026-04-30 English
ARS - SOUTHERN CO (0000092122) (Filer)
Annual Report
2026-04-03 English

Browse filings by year

27 years

Report missing filing

Can't find a specific document? Let us know and we'll add it within 24 hours.

We will notify you once the filing is added.
Report sent
Thank you. We will check the data and update it shortly.