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SOSouthern Company

Utilities · Electric Utilities · NYSE

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Filings with the SEC since Feb 17, 2021

1,011 filings, 8 in the last 30 days

SEC filing index

Latest annual reportOpen ↗

Feb 19, 2026

10-K, period to Dec 31, 2025

Latest quarterly reportOpen ↗

Nov 5, 2026

10-Q, period to Sep 30, 2026

Latest current reportOpen ↗

Nov 5, 2026

8-K: Quarterly results

Filed in the last 30 days

of 1,011 in all

Timeline

Every filing on one line

1 yr 2 yr 3 yr

Annual report (10-K)Quarterly report (10-Q)Current report (8-K)Auditor changeCEO, CFO, COO or CAO changeRestatementLate filing noticeInsider purchaseCluster buy (3+ insiders)SEC comment letterShare offering (S-3, 424B)

20252026

All 46 events

Nov 10, 2026Offering Shelf registration: shares and other securities, amount not fixed S-3ASR · Shelf registered
Nov 5, 20268-K Quarterly results 8-K item 2.02
Nov 5, 202610-Q Quarterly report (10-Q) period ended Sep 30, 2026
Oct 22, 20268-K Bylaws or fiscal year changed, Other events 8-K items 5.03, 8.01
Aug 6, 20268-K New debt or obligation, Unregistered share sale 8-K items 2.03, 3.02
Aug 4, 20268-K Other events 8-K item 8.01
Aug 3, 20268-K Other events 8-K item 8.01
Jul 30, 20268-K Quarterly results 8-K item 2.02
Jul 30, 202610-Q Quarterly report (10-Q) period ended Jun 30, 2026
Jun 8, 20268-K Other events 8-K item 8.01
Jun 5, 2026Offering Shelf registration: shares and other securities, amount not fixed S-3ASR · Under the shelf process, The Southern Company (the “Company”) may sell, in one or more transactions, l common stock (the “Common Stock”), l preferred stock (the “Preferred Stock”), l senior notes (the “Senior Notes”), l junior subordinated notes (the “Junior Subordinated Notes”), l stock purchase co
May 15, 20268-K Shareholder vote results 8-K item 5.07
Apr 30, 20268-K Quarterly results 8-K item 2.02
Apr 30, 202610-Q Quarterly report (10-Q) period ended Mar 31, 2026
Mar 19, 20268-K Other events 8-K item 8.01
Feb 25, 20268-K Material agreement signed, New debt or obligation 8-K items 1.01, 2.03
Feb 19, 20268-K Quarterly results 8-K item 2.02
Feb 19, 202610-K Annual report (10-K) period ended Dec 31, 2025
Feb 17, 20268-K Director or officer change (amended) 8-K item 5.02
Dec 19, 20258-K Other events 8-K item 8.01
Dec 10, 20258-K Other events 8-K item 8.01
Nov 6, 20258-K Other events 8-K item 8.01
Oct 30, 20258-K Quarterly results 8-K item 2.02
Oct 30, 202510-Q Quarterly report (10-Q) period ended Sep 30, 2025
Sep 15, 20258-K Regulation FD disclosure 8-K item 7.01
Jul 31, 20258-K Quarterly results 8-K item 2.02
Jul 31, 202510-Q Quarterly report (10-Q) period ended Jun 30, 2025
Jul 23, 20258-K Director or officer change 8-K item 5.02
Jul 18, 20258-K Director or officer change (amended) 8-K item 5.02
Jul 11, 20258-K Director or officer change 8-K item 5.02
Jul 1, 20258-K Other events 8-K item 8.01
May 27, 20258-K Director or officer change (amended) 8-K item 5.02
May 27, 20258-K Shareholder vote results 8-K item 5.07
May 27, 20258-K New debt or obligation, Unregistered share sale 8-K items 2.03, 3.02
May 21, 20258-K Other events 8-K item 8.01
May 20, 20258-K Other events 8-K item 8.01
May 19, 20258-K Other events 8-K item 8.01
May 1, 20258-K Quarterly results 8-K item 2.02
May 1, 202510-Q Quarterly report (10-Q) period ended Mar 31, 2025
Feb 28, 20258-K Other events 8-K item 8.01
Feb 20, 20258-K Quarterly results 8-K item 2.02
Feb 20, 202510-K Annual report (10-K) period ended Dec 31, 2024
Feb 12, 20258-K Director or officer change 8-K item 5.02
Feb 11, 20258-K Director or officer change (amended) 8-K item 5.02
Jan 13, 20258-K Other events 8-K item 8.01
Dec 10, 20248-K Director or officer change 8-K item 5.02

From the SEC filing index. Insider purchases go back 180 days (the Form 4s downloaded).

Every filing

Newest first, by kind

Each form links to sec.gov

All 1011 Annual & quarterly 24 Current reports (8-K) 108 Insiders 731 Proxy & votes 35 Big owners (13D/13G) 15 Shares & debt offered 68 SEC letters 5 Other 25

Filed	Form	What it is	Period
May 5, 2026	DEFA14A	Extra proxy material		all files
Apr 3, 2026	DEFA14A	Extra proxy material		all files
Apr 3, 2026	DEF 14A	Proxy statement	May 13, 2026	all files
Mar 23, 2026	PRE 14A		May 13, 2026	all files
May 20, 2025	PX14A6G	Shareholder's proxy letter		all files
May 16, 2025	PX14A6G	Shareholder's proxy letter		all files
May 13, 2025	DEFA14A	Extra proxy material		all files
Apr 21, 2025	PX14A6G	Shareholder's proxy letter		all files
Apr 17, 2025	PX14A6G	Shareholder's proxy letter		all files
Apr 11, 2025	DEFA14A	Extra proxy material		all files
Apr 11, 2025	DEF 14A	Proxy statement	May 21, 2025	all files
Mar 31, 2025	PRE 14A		May 21, 2025	all files
May 14, 2024	DEFA14A	Extra proxy material		all files
May 2, 2024	PX14A6G	Shareholder's proxy letter		all files
Apr 22, 2024	PX14A6G	Shareholder's proxy letter		all files
Apr 12, 2024	DEFA14A	Extra proxy material		all files
Apr 12, 2024	DEF 14A	Proxy statement	May 22, 2024	all files
Apr 1, 2024	PRE 14A		May 22, 2024	all files
May 17, 2023	DEFA14A	Extra proxy material		all files
May 8, 2023	PX14A6G	Shareholder's proxy letter		all files
Apr 24, 2023	PX14A6G	Shareholder's proxy letter		all files
Apr 21, 2023	PX14A6G	Shareholder's proxy letter		all files
Apr 14, 2023	DEFA14A	Extra proxy material		all files
Apr 14, 2023	DEF 14A	Proxy statement		all files
Mar 31, 2023	PRE 14A			all files
May 10, 2022	DEFA14A	Extra proxy material		all files
Apr 29, 2022	PX14A6G	Shareholder's proxy letter		all files
Apr 15, 2022	DEFA14A	Extra proxy material		all files
Apr 15, 2022	DEF 14A	Proxy statement	May 25, 2022	all files
May 13, 2021	DEFA14A	Extra proxy material		all files
Apr 26, 2021	PX14A6G	Shareholder's proxy letter		all files
Apr 16, 2021	DEFA14A	Extra proxy material		all files
Apr 12, 2021	DEFA14A	Extra proxy material		all files
Apr 12, 2021	DEF 14A	Proxy statement	May 26, 2021	all files
Apr 1, 2021	PRE 14A		May 26, 2021	all files

Show the other 10 filings on this page

Press releases with quarterly results are attached to the 8-Ks marked "Quarterly results"; read them on Earnings releases.

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