GREAT SOUTHERN BANCORP, INC. — All Filings
1,000 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
10-K/A
10-Q
144
25-NSE
3
3/A
305B2
4
4/A
424B1
424B5
5
5/A
8-A12G
8-K
8-K/A
ARS
CORRESP
DEF 14A
DEFA14A
EFFECT
FWP
NT 10-K
NT 10-Q
POS AM
PRE 14A
RW
S-3
S-3/A
S-8
S-8 POS
SC 13D
SC 13D/A
SC 13G
SC 13G/A
UPLOAD
| Form | Description | Accession Number | Filed | Period |
|---|---|---|---|---|
| 8-K | FORM 8-K | 0001171843-26-001736 | Mar 18, 2026 | — |
| 10-K | 10-K | 0001104659-26-024659 | Mar 6, 2026 | Dec 31, 2025 |
| 4 | PRIMARY DOCUMENT | 0001214659-26-002409 | Feb 24, 2026 | Feb 23, 2026 |
| 4 | PRIMARY DOCUMENT | 0001214659-26-002408 | Feb 24, 2026 | Feb 23, 2026 |
| 4 | PRIMARY DOCUMENT | 0001214659-26-002093 | Feb 17, 2026 | Jan 13, 2026 |
| 4 | PRIMARY DOCUMENT | 0001214659-26-002091 | Feb 17, 2026 | Jan 13, 2026 |
| 4 | PRIMARY DOCUMENT | 0001214659-26-002088 | Feb 17, 2026 | Jan 13, 2026 |
| 8-K | FORM 8-K | 0001171843-26-000861 | Feb 17, 2026 | — |
| 4 | PRIMARY DOCUMENT | 0001214659-26-002056 | Feb 17, 2026 | Jan 13, 2026 |
| 4 | PRIMARY DOCUMENT | 0001214659-26-001296 | Feb 6, 2026 | — |
| 144 | — | 0001950047-26-000989 | Feb 6, 2026 | — |
| 4 | PRIMARY DOCUMENT | 0001214659-26-001190 | Feb 4, 2026 | — |
| 4 | PRIMARY DOCUMENT | 0001214659-26-001187 | Feb 4, 2026 | Feb 3, 2026 |
| 144 | — | 0001950047-26-000910 | Feb 4, 2026 | — |
| 144 | — | 0001949846-26-000033 | Feb 3, 2026 | — |
| 4 | PRIMARY DOCUMENT | 0001214659-26-000951 | Jan 29, 2026 | Jan 13, 2026 |
| 4 | PRIMARY DOCUMENT | 0001214659-26-000950 | Jan 29, 2026 | Jan 28, 2026 |
| 144 | — | 0001950047-26-000734 | Jan 28, 2026 | — |
| 144 | — | 0001950047-26-000718 | Jan 28, 2026 | — |
| 4 | PRIMARY DOCUMENT | 0001214659-26-000883 | Jan 27, 2026 | Jan 13, 2026 |
| 144 | — | 0001950047-26-000690 | Jan 26, 2026 | — |
| 8-K | FORM 8-K | 0001171843-26-000379 | Jan 22, 2026 | Jan 21, 2026 |
| 8-K | FORM 8-K | 0001171843-25-007981 | Dec 17, 2025 | — |
| 4 | PRIMARY DOCUMENT | 0001214659-25-017373 | Dec 1, 2025 | Nov 25, 2025 |
| 144 | — | 0001950047-25-009330 | Nov 25, 2025 | — |
| 4 | PRIMARY DOCUMENT | 0001214659-25-017026 | Nov 20, 2025 | Oct 14, 2025 |
| 4 | PRIMARY DOCUMENT | 0001214659-25-017024 | Nov 20, 2025 | Oct 14, 2025 |
| 4 | PRIMARY DOCUMENT | 0001214659-25-017017 | Nov 20, 2025 | Oct 14, 2025 |
| 4 | PRIMARY DOCUMENT | 0001214659-25-017012 | Nov 20, 2025 | Oct 14, 2025 |
| 4 | PRIMARY DOCUMENT | 0001214659-25-017011 | Nov 20, 2025 | Oct 14, 2025 |
| 4 | PRIMARY DOCUMENT | 0001214659-25-017010 | Nov 20, 2025 | Oct 14, 2025 |
| 4 | PRIMARY DOCUMENT | 0001214659-25-017009 | Nov 20, 2025 | Nov 19, 2025 |
| 4 | PRIMARY DOCUMENT | 0001214659-25-017008 | Nov 20, 2025 | Nov 19, 2025 |
| 4 | PRIMARY DOCUMENT | 0001214659-25-017007 | Nov 20, 2025 | Nov 19, 2025 |
| 4 | PRIMARY DOCUMENT | 0001214659-25-017005 | Nov 20, 2025 | Nov 19, 2025 |
| 4 | PRIMARY DOCUMENT | 0001214659-25-017004 | Nov 20, 2025 | Nov 19, 2025 |
| 4 | PRIMARY DOCUMENT | 0001214659-25-017003 | Nov 20, 2025 | Nov 19, 2025 |
| 4 | PRIMARY DOCUMENT | 0001214659-25-016995 | Nov 20, 2025 | Nov 19, 2025 |
| 4 | PRIMARY DOCUMENT | 0001214659-25-016276 | Nov 12, 2025 | Nov 10, 2025 |
| 144 | — | 0001950047-25-008595 | Nov 10, 2025 | — |
| 10-Q | 10-Q | 0001104659-25-107609 | Nov 6, 2025 | Sep 30, 2025 |
| 8-K | FORM 8-K | 0001171843-25-006476 | Oct 16, 2025 | Oct 15, 2025 |
| 8-K | FORM 8-K | 0001171843-25-005940 | Sep 17, 2025 | — |
| 4 | PRIMARY DOCUMENT | 0001214659-25-012343 | Aug 15, 2025 | Jul 15, 2025 |
| 4 | PRIMARY DOCUMENT | 0001214659-25-012005 | Aug 13, 2025 | Jul 15, 2025 |
| 4 | PRIMARY DOCUMENT | 0001214659-25-012003 | Aug 13, 2025 | Jul 15, 2025 |
| 4 | PRIMARY DOCUMENT | 0001214659-25-012002 | Aug 13, 2025 | Jul 15, 2025 |
| 4 | PRIMARY DOCUMENT | 0001214659-25-012001 | Aug 13, 2025 | Jul 15, 2025 |
| 4 | PRIMARY DOCUMENT | 0001214659-25-011997 | Aug 13, 2025 | Jul 15, 2025 |
| 10-Q | 10-Q | 0001410578-25-001607 | Aug 7, 2025 | Jun 30, 2025 |