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 |
|---|---|---|---|
| EFFECT | Filing | Jan 24, 2025 | — |
| CORRESP | Letter to the SEC | Jan 23, 2025 | — |
| UPLOAD | Letter from the SEC | Jan 21, 2025 | — |
| EFFECT | Filing | Apr 18, 2024 | — |
| UPLOAD | Letter from the SEC | Apr 16, 2024 | — |
| CORRESP | Letter to the SEC | Apr 16, 2024 | — |
| EFFECT | Filing | Dec 12, 2023 | — |
| CORRESP | Letter to the SEC | Dec 8, 2023 | — |
| UPLOAD | Letter from the SEC | Dec 8, 2023 | — |
| EFFECT | Filing | Oct 12, 2022 | — |
| CORRESP | Letter to the SEC | Oct 11, 2022 | — |
| CORRESP | Letter to the SEC | Oct 11, 2022 | — |
| CORRESP | Letter to the SEC | Oct 6, 2022 | — |
| CORRESP | Letter to the SEC | Oct 6, 2022 | — |
| CERT | Nyse american certification | Oct 6, 2022 | — |
| 8-A12B | Form 8-a12b | Oct 6, 2022 | — |
| CORRESP | Letter to the SEC | Oct 5, 2022 | — |
| CORRESP | Letter to the SEC | Oct 5, 2022 | — |
| CORRESP | Letter to the SEC | Sep 30, 2022 | — |
| UPLOAD | Letter from the SEC | Sep 27, 2022 | — |
| UPLOAD | Letter from the SEC | Aug 22, 2022 | — |
| DRSLTR | Filing | Aug 11, 2022 | — |
| DRS/A | Filing | Aug 11, 2022 | — |
| UPLOAD | Letter from the SEC | Jul 26, 2022 | — |
| DRS | Filing | Jun 29, 2022 | — |
| D | Filing | Oct 19, 2021 | — |
Showing 26 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.