Castellum, Inc. SEC filings CTM
Castellum, Inc. has 312 filings in SEC EDGAR's recent list, going back to Oct 19, 2021. Its latest annual report, Form 10-K, was filed on Mar 9, 2026 for the period ended Dec 31, 2025. The latest quarterly report (Form 10-Q) was filed on Nov 5, 2026, covering the quarter ended Sep 30, 2026. The most recent current report (Form 8-K) was filed on Nov 6, 2026 (results of operations). The company's fiscal year ends on December 31.
| Form | Description | Filed | Period |
|---|---|---|---|
| S-8 | Employee stock plan registration | Jun 1, 2026 | — |
| S-8 | Employee stock plan registration | Sep 17, 2025 | — |
| S-8 | Employee stock plan registration | Sep 17, 2025 | — |
| 424B5 | Prospectus supplement | Jun 12, 2025 | — |
| 424B5 | Prospectus supplement | Jun 11, 2025 | — |
| 424B5 | Prospectus supplement | Mar 17, 2025 | — |
| 424B5 | Prospectus supplement | Mar 14, 2025 | — |
| S-3/A | Filing | Jan 22, 2025 | — |
| S-3 | Shelf registration | Jan 10, 2025 | — |
| 424B5 | Prospectus supplement | Dec 30, 2024 | — |
| 424B5 | Prospectus supplement | Dec 27, 2024 | — |
| 424B5 | Prospectus supplement | Dec 23, 2024 | — |
| 424B2 | Prospectus | Apr 18, 2024 | — |
| S-3 | Shelf registration | Apr 8, 2024 | — |
| 424B5 | Prospectus supplement | Jan 29, 2024 | — |
| S-3 | Shelf registration | Dec 1, 2023 | — |
| 424B4 | Prospectus | Oct 14, 2022 | — |
| 424B4 | Prospectus | Oct 14, 2022 | — |
| S-1/A | Amended registration statement | Oct 11, 2022 | — |
| S-1/A | Amended registration statement | Oct 6, 2022 | — |
| S-1/A | Amended registration statement | Oct 4, 2022 | — |
| S-1/A | Amended registration statement | Sep 30, 2022 | — |
| S-1 | Registration statement | Sep 2, 2022 | — |
Showing 23 filings. Main filings leave out insider and ownership forms such as Form 4; choose a type above to see them. Each form opens on SEC.gov. Older filings are on SEC EDGAR.
New to this? Read What Are SEC Filings? 10-K, 10-Q, 8-K and Other Forms Explained.
Company profile
- Industry
- Services-Management Consulting Services (SIC 8742)
- Listed as
- CTM (NYSE)
- Fiscal year ends
- December 31
- Incorporated in
- NV
- Headquarters
- Vienna, VA
- SEC filer status
- Non-accelerated filer, Smaller reporting company, Emerging growth company
- SEC CIK
- 1877939
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Source: SEC EDGAR filings. This is company-reported data, not investment advice.