SOUTHERN CO — All Filings
1,003 total filings on record
Public companies registered with the SEC are required to file periodic reports, disclosures, and notices throughout the year. The most important are the 10-K (annual report), 10-Q (quarterly report), and 8-K (material event notice). Use the filters below to narrow by form type.
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10-K/A
10-Q/A
11-K
11-K/A
144
25-NSE
3
3/A
305B2
35-CERT
35-CERT/A
4
4/A
424A
424B1
424B2
424B3
424B4
424B5
5
8-A12B
8-K
8-K/A
ARS
CERT
CERTNYS
CORRESP
DEF 14A
DEFA14A
DEFR14A
DFAN14A
FWP
NO ACT
POS AM
POS AMC
POSASR
PRE 14A
PX14A6G
PX14A6N
REGDEX
RW
S-3
S-3/A
S-3ASR
S-3D
S-3DPOS
S-4
S-4/A
S-8
S-8 POS
SC 13E4
SC 13E4/A
SC 13G
SC 13G/A
SCHEDULE 13G/A
SD
U-1
U-1/A
U-12-IA
U-12-IB
U-9C-3
U5S
U5S/A
UPLOAD
| Form | Description | Accession Number | Filed | Period |
|---|---|---|---|---|
| SCHEDULE 13G/A | — | 0000102909-26-002397 | Mar 27, 2026 | — |
| PRE 14A | PRE 14A | 0000092122-26-000021 | Mar 23, 2026 | May 13, 2026 |
| 144 | — | 0001628280-26-019797 | Mar 19, 2026 | — |
| 4 | 4 | 0001193125-26-115921 | Mar 19, 2026 | — |
| 4 | 4 | 0001193125-26-115763 | Mar 19, 2026 | Mar 18, 2026 |
| 8-K | 8-K | 0000092122-26-000018 | Mar 19, 2026 | Mar 16, 2026 |
| 144 | — | 0001628280-26-019577 | Mar 18, 2026 | — |
| 424B2 | 424B2 | 0000092122-26-000016 | Mar 17, 2026 | — |
| FWP | FWP | 0000092122-26-000014 | Mar 16, 2026 | — |
| 424B5 | 424B5 | 0000092122-26-000012 | Mar 16, 2026 | — |
| 4 | 4 | 0001193125-26-100033 | Mar 10, 2026 | Mar 8, 2026 |
| 4 | 4 | 0001193125-26-100026 | Mar 10, 2026 | Mar 6, 2026 |
| 4 | 4 | 0001167316-26-000001 | Mar 2, 2026 | Feb 26, 2026 |
| 4 | 4 | 0001193125-26-071778 | Feb 25, 2026 | Feb 24, 2026 |
| 144 | — | 0001628280-26-011224 | Feb 24, 2026 | — |
| 4 | 4 | 0001193125-26-054369 | Feb 17, 2026 | Feb 16, 2026 |
| 8-K/A | 8-K | 0000092122-26-000002 | Feb 17, 2026 | Jul 21, 2025 |
| 4 | 4 | 0001193125-26-051209 | Feb 13, 2026 | Feb 11, 2026 |
| 4 | 4 | 0001193125-26-051208 | Feb 13, 2026 | Feb 11, 2026 |
| 4 | 4 | 0001193125-26-051206 | Feb 13, 2026 | Feb 11, 2026 |
| 4 | 4 | 0001193125-26-051204 | Feb 13, 2026 | Feb 11, 2026 |
| 4 | 4 | 0001193125-26-051202 | Feb 13, 2026 | Feb 11, 2026 |
| 4 | 4 | 0001193125-26-051201 | Feb 13, 2026 | Feb 11, 2026 |
| 4 | 4 | 0001193125-26-051200 | Feb 13, 2026 | Feb 11, 2026 |
| 4 | 4 | 0001193125-26-051199 | Feb 13, 2026 | Feb 11, 2026 |
| 4 | 4 | 0001193125-26-051198 | Feb 13, 2026 | Feb 11, 2026 |
| 4 | 4 | 0001193125-26-051197 | Feb 13, 2026 | Feb 11, 2026 |
| 4 | 4 | 0001193125-26-051195 | Feb 13, 2026 | Feb 11, 2026 |
| 4 | 4 | 0001193125-26-051194 | Feb 13, 2026 | Feb 11, 2026 |
| 4 | 4 | 0001193125-26-043858 | Feb 10, 2026 | Feb 6, 2026 |
| 4 | 4 | 0001193125-26-041988 | Feb 9, 2026 | Feb 5, 2026 |
| 4 | 4 | 0001193125-26-041987 | Feb 9, 2026 | Feb 5, 2026 |
| 4 | 4 | 0001193125-26-041986 | Feb 9, 2026 | Feb 5, 2026 |
| 4 | 4 | 0001193125-26-036101 | Feb 3, 2026 | Jan 31, 2026 |
| 4 | 4 | 0001193125-26-036097 | Feb 3, 2026 | Jan 31, 2026 |
| 4 | 4 | 0001193125-26-036074 | Feb 3, 2026 | Jan 31, 2026 |
| 4 | 4 | 0001193125-26-036073 | Feb 3, 2026 | — |
| 4 | 4 | 0001193125-26-036071 | Feb 3, 2026 | Apr 30, 2025 |
| 4 | 4 | 0001193125-26-036070 | Feb 3, 2026 | Jan 31, 2026 |
| 4 | 4 | 0001193125-26-036069 | Feb 3, 2026 | Jan 31, 2026 |
| 4 | 4 | 0001193125-26-036068 | Feb 3, 2026 | Jan 31, 2026 |
| 4 | 4 | 0001193125-26-036039 | Feb 3, 2026 | Jan 31, 2026 |
| 4 | 4 | 0001193125-26-036037 | Feb 3, 2026 | Jan 31, 2026 |
| 4 | 4 | 0001193125-26-036034 | Feb 3, 2026 | Jan 31, 2026 |
| 4 | 4 | 0001193125-26-036032 | Feb 3, 2026 | Jan 31, 2026 |
| 4 | 4 | 0001193125-26-036030 | Feb 3, 2026 | Jan 31, 2026 |
| 3 | 3 | 0001193125-26-003780 | Jan 6, 2026 | Aug 4, 2025 |
| 4 | 4 | 0001193125-26-003773 | Jan 6, 2026 | Jan 2, 2026 |
| 4 | 4 | 0001193125-26-003771 | Jan 6, 2026 | Jan 2, 2026 |
| 4 | 4 | 0001193125-26-003767 | Jan 6, 2026 | Jan 2, 2026 |