Castellum, Inc. — All Filings
280 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.
All
10-K
10-Q
144
3
3/A
4
4/A
424B2
424B4
424B5
5
8-A12B
8-K
8-K/A
CERT
CORRESP
D
DEF 14A
DEF 14C
DEFA14A
DRS
DRS/A
DRSLTR
EFFECT
PRE 14C
S-1
S-1/A
S-3
S-3/A
S-8
SC 13D
SC 13G
UPLOAD
| Form | Description | Accession Number | Filed | Period |
|---|---|---|---|---|
| 4 | FORM 4 | 0001332108-26-000006 | Mar 27, 2026 | Mar 25, 2026 |
| 4 | FORM 4 | 0001947023-26-000003 | Mar 27, 2026 | — |
| 4 | FORM 4 | 0002036177-26-000002 | Mar 27, 2026 | — |
| 4 | FORM 4 | 0001877939-26-000021 | Mar 26, 2026 | — |
| 4 | FORM 4 | 0001877939-26-000020 | Mar 20, 2026 | Mar 18, 2026 |
| 4 | FORM 4 | 0001877939-26-000018 | Mar 18, 2026 | — |
| 144 | — | 0001965301-26-000038 | Mar 17, 2026 | — |
| 10-K | 10-K | 0001877939-26-000016 | Mar 9, 2026 | Dec 31, 2025 |
| 8-K | 8-K | 0001877939-26-000012 | Mar 5, 2026 | Mar 4, 2026 |
| 8-K | 8-K | 0001877939-26-000009 | Feb 17, 2026 | — |
| 8-K | 8-K | 0001877939-26-000007 | Jan 8, 2026 | Jan 7, 2026 |
| 3 | FORM 3 | 0001877939-26-000005 | Jan 2, 2026 | Jan 1, 2026 |
| 8-K | 8-K | 0001877939-26-000004 | Jan 2, 2026 | Jan 1, 2026 |
| 4 | FORM 4 | 0001310272-25-000026 | Dec 22, 2025 | Dec 19, 2025 |
| 4 | FORM 4 | 0001877939-25-000127 | Dec 17, 2025 | Dec 15, 2025 |
| 4 | FORM 4 | 0001310272-25-000023 | Dec 12, 2025 | Dec 10, 2025 |
| 8-K | 8-K | 0001877939-25-000126 | Dec 9, 2025 | Dec 8, 2025 |
| 4 | FORM 4 | 0001310272-25-000021 | Dec 2, 2025 | Nov 28, 2025 |
| 4 | FORM 4 | 0001310272-25-000019 | Nov 18, 2025 | Nov 14, 2025 |
| 4 | FORM 4 | 0001310272-25-000017 | Nov 13, 2025 | Nov 11, 2025 |
| 8-K | 8-K | 0001877939-25-000124 | Nov 13, 2025 | — |
| 4 | FORM 4 | 0001877939-25-000122 | Nov 13, 2025 | Nov 11, 2025 |
| 4 | FORM 4 | 0001877939-25-000121 | Nov 13, 2025 | Nov 11, 2025 |
| 4 | FORM 4 | 0001877939-25-000120 | Nov 13, 2025 | Nov 11, 2025 |
| 4 | FORM 4 | 0001877939-25-000119 | Nov 13, 2025 | Nov 11, 2025 |
| 4 | FORM 4 | 0001877939-25-000118 | Nov 13, 2025 | Nov 11, 2025 |
| 4 | FORM 4 | 0001947023-25-000005 | Nov 13, 2025 | Nov 11, 2025 |
| 4 | FORM 4 | 0001947772-25-000003 | Nov 13, 2025 | Nov 11, 2025 |
| 144 | — | 0001965301-25-000168 | Nov 10, 2025 | — |
| 10-Q | 10-Q | 0001877939-25-000115 | Nov 7, 2025 | Sep 30, 2025 |
| 8-K | 8-K | 0001877939-25-000114 | Nov 7, 2025 | — |
| 8-K | 8-K | 0001877939-25-000110 | Oct 31, 2025 | — |
| 8-K | 8-K | 0001877939-25-000108 | Oct 21, 2025 | Oct 20, 2025 |
| 8-K | 8-K | 0001877939-25-000106 | Oct 14, 2025 | — |
| S-8 | S-8 | 0001877939-25-000103 | Sep 17, 2025 | — |
| S-8 | S-8 | 0001877939-25-000102 | Sep 17, 2025 | — |
| 4 | FORM 4 | 0001877939-25-000101 | Sep 17, 2025 | Sep 15, 2025 |
| 4 | FORM 4 | 0001877939-25-000095 | Sep 12, 2025 | Sep 10, 2025 |
| 4 | FORM 4 | 0001877939-25-000093 | Sep 9, 2025 | Sep 5, 2025 |
| 4 | FORM 4 | 0001944544-25-000014 | Sep 3, 2025 | — |
| 4 | FORM 4 | 0001310272-25-000015 | Aug 28, 2025 | Aug 27, 2025 |
| 4 | FORM 4 | 0001310272-25-000013 | Aug 26, 2025 | Aug 22, 2025 |
| 4 | FORM 4 | 0001332108-25-000006 | Aug 21, 2025 | Aug 20, 2025 |
| 4 | FORM 4 | 0001310272-25-000010 | Aug 20, 2025 | Aug 18, 2025 |
| 8-K | 8-K | 0001877939-25-000089 | Aug 19, 2025 | — |
| 144 | — | 0001965301-25-000126 | Aug 18, 2025 | — |
| 144 | — | 0001965301-25-000125 | Aug 18, 2025 | — |
| 8-K | 8-K | 0001877939-25-000087 | Aug 15, 2025 | Aug 14, 2025 |
| 8-K | 8-K | 0001877939-25-000085 | Aug 12, 2025 | — |
| 8-K | 8-K | 0001877939-25-000083 | Aug 8, 2025 | — |