Company facts
- Headquarters
- Vienna, Virginia
- Most recent report
- 8-K, filed Sep 9, 2026
- Incorporated
- Nevada
- Filings on record
- 304 filings
- On EDGAR
- CIK 1877939
- Fiscal year ends
- December
- Filer status
- Emerging growth company
Financials 8 of 16
News 8 of 98
Prospectuses and Registrations 8 of 23
- S-8 Registration statement for an employee plan Jun 1, 2026
- S-8 Registration statement for an employee plan Sep 17, 2025
- S-8 Registration statement for an employee plan Sep 17, 2025
- 424B5 Prospectus supplement for an offering Jun 12, 2025
- 424B5 Prospectus supplement for an offering Jun 11, 2025
- 424B5 Prospectus supplement for an offering Mar 17, 2025
- 424B5 Prospectus supplement for an offering Mar 14, 2025
- S-3/A Shelf registration statement, amended Jan 22, 2025
Proxies 8
- DEFA14A Extra proxy material Apr 7, 2026
- DEF 14A Proxy statement for a shareholder vote Apr 7, 2026
- DEFA14A Extra proxy material Apr 11, 2025
- DEF 14A Proxy statement for a shareholder vote Apr 11, 2025
- DEFA14A Extra proxy material Apr 16, 2024
- DEF 14A Proxy statement for a shareholder vote Apr 16, 2024
- DEFA14A Extra proxy material Apr 10, 2023
- DEF 14A Proxy statement for a shareholder vote Apr 10, 2023
Ownership 8 of 131
- 4 Insider reported a trade Sep 9, 2026
- 4 Insider reported a trade Jul 2, 2026
- 4 Insider reported a trade Jul 2, 2026
- 4 Insider reported a trade Jul 2, 2026
- 4 Insider reported a trade Jul 2, 2026
- 4 Insider reported a trade Mar 31, 2026
- 4 Insider reported a trade Mar 31, 2026
- 4 Insider reported a trade Mar 31, 2026
Other 8 of 28
- EFFECT Notice that a registration became effective Jan 24, 2025
- CORRESP Reply to SEC staff Jan 23, 2025
- UPLOAD Comment letter from SEC staff Jan 21, 2025
- EFFECT Notice that a registration became effective Apr 18, 2024
- UPLOAD Comment letter from SEC staff Apr 16, 2024
- CORRESP Reply to SEC staff Apr 16, 2024
- DEF 14C Feb 27, 2024
- PRE 14C Feb 16, 2024
Everything here comes from Castellum, Inc.'s own filings on SEC EDGAR. The filing list is rechecked every hour.