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Southern Co. SEC filings

Southern filed 27 documents with the SEC in the last twelve months, the latest report being the 10-Q of 5 November 2026. The latest filing, on 5 November 2026, was an 8-K: results of operations.

Filings in twelve months2715 of them 8-K news
Latest report10-Qfiled 5 Nov 2026
Latest filing8-K5 Nov 2026
Last results, two-day move-0.9%results filed 5 Nov 2026
New to this? How to read this page
  1. Companies file with the SEC when something happens. 10-Q and 10-K are the quarterly and annual reports; 8-K is news that cannot wait for the next report.
  2. An 8-K says which items it covers, such as results, a change at the top or a big contract. A foreign company files a 6-K instead.
  3. The results release is usually an 8-K filed the day results come out, before the 10-Q or 10-K.
  4. Every filing links to the original on EDGAR, the SEC's own site.

Twelve months of filings

by kind

Most of the filings were other company news (11). Results came out 4 times.

Each mark is one filing on the day it was filed, in rows by kind. Hover or tap a mark for the form and what it was about.

The share price around each results release

close before to close after

Over the last 4 releases the share price moved 2.4% on average in the two days around results, the most on 19 Feb 2026 (+3.6%).

19 Feb 2026+3.6%$91.04 to $94.30
30 Apr 2026+3.4%$93.51 to $96.71
30 Jul 2026-1.6%$96.05 to $94.54
5 Nov 2026-0.9%$93.12 to $92.33
Daily closeResults filed

Each ring marks a results filing. The move runs from the last close before the filing to the first close after it, so it covers results released before the open or after the close. Hover the line for any day's close.

What the company told investors on 8-K

15 filings

Southern's 15 news filings (8-K) were mostly about other events (7) and results of operations (4).

  • Other eventsNews the company chose to file
    7 · latest 22 Oct 2026
  • Results of operationsThe quarterly results release
    4 · latest 5 Nov 2026
  • New financial obligationNew debt or a borrowing
    2 · latest 6 Aug 2026
  • Charter or bylaw amendment, or fiscal year changeThe company's rules or fiscal year changed
    1 · latest 22 Oct 2026
  • Unregistered sale of equityShares sold privately
    1 · latest 6 Aug 2026
  • Shareholder voteResults of a vote at a shareholder meeting
    1 · latest 15 May 2026
  • Material agreementA large contract or deal was signed
    1 · latest 25 Feb 2026
  • Officer or director changeSomeone joined, left or changed role at the top
    1 · latest 17 Feb 2026

Each line is one kind of news, with what it means in plain words. Each square is one filing; a filing can carry more than one kind, so the squares can add up to more than the filings. The date opens the latest one on EDGAR.

How it compares

every company on the site

    The bar ranks every company on the site from the lowest on the left to the highest on the right, in three equal thirds; the small figures under it are the values where each third starts, and the black tick is the middle company. The orange dot is this company; the grey ticks are the other companies in its industry (hover or tap for names). A hatched block is companies tied at none.

    Every filing as a table

    In the last twelve months Southern Co. filed 27 documents with the SEC of the kinds listed here: 15 current reports (8-K), about 7 other events; 4 results of operations; 2 new financial obligation; 1 charter or bylaw amendment, or fiscal year change; 1 unregistered sale of equity; 3 quarterly reports (10-Q), 2 additional proxy materials (DEFA14A), 1 employee plan annual report (11-K), 1 shelf registration (S-3ASR), 1 conflict minerals report (SD), 1 annual report to shareholders (ARS). The latest, filed 5 November 2026: 8-K, results of operations. The reports, the proxy statement and the prospectus themselves, where filed, each with a link to open it, are on the documents page.

    FiledFormWhat it was aboutPeriod or event dateFiling
    5 November 20268-KResults of operations5 November 2026EDGAR
    5 November 202610-Qquarterly report30 September 2026EDGAR
    22 October 20268-KCharter or bylaw amendment, or fiscal year change, Other events20 October 2026EDGAR
    6 August 20268-KNew financial obligation, Unregistered sale of equity3 August 2026EDGAR
    4 August 20268-KOther events3 August 2026EDGAR
    3 August 20268-KOther events3 August 2026EDGAR
    30 July 20268-KResults of operations30 July 2026EDGAR
    30 July 202610-Qquarterly report30 June 2026EDGAR
    26 June 202611-Kemployee plan annual report31 December 2025EDGAR
    8 June 20268-KOther events8 June 2026EDGAR
    5 June 2026S-3ASRshelf registrationEDGAR
    20 May 2026SDconflict minerals reportEDGAR
    15 May 20268-KShareholder vote13 May 2026EDGAR
    5 May 2026DEFA14Aadditional proxy materialEDGAR
    30 April 20268-KResults of operations30 April 2026EDGAR
    30 April 202610-Qquarterly report31 March 2026EDGAR
    3 April 2026ARSannual report to shareholders31 December 2025EDGAR
    3 April 2026DEFA14Aadditional proxy materialEDGAR
    3 April 2026DEF 14Aproxy statement13 May 2026EDGAR
    23 March 2026PRE 14Apreliminary proxy13 May 2026EDGAR
    19 March 20268-KOther events16 March 2026EDGAR
    25 February 20268-KMaterial agreement, New financial obligation20 February 2026EDGAR
    19 February 20268-KResults of operations19 February 2026EDGAR
    19 February 202610-Kannual report31 December 2025EDGAR
    17 February 20268-K/AOfficer or director change21 July 2025EDGAR
    19 December 20258-KOther events19 December 2025EDGAR
    10 December 20258-KOther events9 December 2025EDGAR
    An 8-K is what a company files within four business days of a material event; the SEC numbers the events, and the words here are the SEC's own headings, shortened.
    Read moreForm 4, Form 144, 13F and Schedule 13D and 13G have their own pages. Prospectus supplements and correspondence are not listed.