T3 Defense Inc. SEC filings DFNS
T3 Defense Inc. has 399 filings in SEC EDGAR's recent list, going back to Nov 26, 2019. Its latest annual report, Form 10-K, was filed on Apr 9, 2026 for the period ended Dec 31, 2025. The latest quarterly report (Form 10-Q) was filed on Aug 18, 2026, covering the quarter ended Jun 30, 2026. The most recent current report (Form 8-K) was filed on Oct 29, 2026 (unregistered share sale). The company's fiscal year ends on December 31.
| Form | Description | Filed | Period |
|---|---|---|---|
| SCHEDULE 13D/A | Amended ownership over 5% (active) | Sep 15, 2026 | — |
| SCHEDULE 13D | Ownership over 5% (active) | Jul 24, 2026 | — |
| 3 | Initial insider ownership | Jun 11, 2026 | Jun 11, 2026 |
| SCHEDULE 13G | Ownership over 5% (passive) | May 21, 2026 | — |
| 4 | Insider transaction | Apr 28, 2026 | Apr 27, 2026 |
| SCHEDULE 13D/A | Amended ownership over 5% (active) | Apr 28, 2026 | — |
| SCHEDULE 13D/A | Amended ownership over 5% (active) | Apr 14, 2026 | — |
| SCHEDULE 13D | Ownership over 5% (active) | Apr 10, 2026 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Feb 17, 2026 | — |
| 4 | Insider transaction | Jan 29, 2026 | Jan 29, 2026 |
| 4 | Insider transaction | Jan 20, 2026 | Jan 15, 2026 |
| SCHEDULE 13D | Ownership over 5% (active) | Jan 20, 2026 | — |
| 4 | Insider transaction | Dec 31, 2025 | Dec 29, 2025 |
| 4 | Insider transaction | Dec 31, 2025 | Dec 22, 2025 |
| 4 | Insider transaction | Dec 22, 2025 | Dec 18, 2025 |
| 4 | Insider transaction | Dec 1, 2025 | Nov 28, 2025 |
| 3 | Initial insider ownership | Nov 25, 2025 | Nov 25, 2025 |
| 4 | Insider transaction | Nov 20, 2025 | Nov 13, 2025 |
| 4 | Insider transaction | Nov 20, 2025 | Nov 13, 2025 |
| 4 | Insider transaction | Nov 20, 2025 | Nov 13, 2025 |
| 4 | Insider transaction | Nov 20, 2025 | Nov 13, 2025 |
| 4 | Insider transaction | Nov 17, 2025 | Nov 13, 2025 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Nov 14, 2025 | — |
| 4 | Insider transaction | Oct 24, 2025 | Oct 24, 2025 |
| 4 | Insider transaction | Oct 10, 2025 | Oct 8, 2025 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Jul 15, 2025 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Feb 18, 2025 | — |
| SCHEDULE 13G | Ownership over 5% (passive) | Dec 23, 2024 | — |
| 4/A | Filing | Dec 23, 2024 | Nov 8, 2024 |
| 4 | Insider transaction | Dec 20, 2024 | Dec 16, 2024 |
| 4 | Insider transaction | Dec 20, 2024 | Dec 16, 2024 |
| 4 | Insider transaction | Dec 20, 2024 | Dec 16, 2024 |
| 4 | Insider transaction | Dec 20, 2024 | Nov 8, 2024 |
| 4 | Insider transaction | Dec 20, 2024 | Dec 16, 2024 |
| 3 | Initial insider ownership | Dec 20, 2024 | Jun 13, 2024 |
| 3 | Initial insider ownership | Dec 20, 2024 | Jun 13, 2024 |
| 3 | Initial insider ownership | Dec 20, 2024 | Nov 8, 2024 |
| 3 | Initial insider ownership | Dec 20, 2024 | Sep 4, 2024 |
| SC 13G/A | Amended ownership over 5% (passive) | Nov 12, 2024 | — |
| 3 | Initial insider ownership | Sep 25, 2024 | Sep 4, 2024 |
| SC 13G | Ownership over 5% (passive) | Feb 13, 2024 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 7, 2023 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Nov 10, 2022 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Aug 5, 2022 | — |
| 4 | Insider transaction | Apr 21, 2022 | Apr 19, 2022 |
| 4 | Insider transaction | Apr 20, 2022 | Apr 19, 2022 |
| 3 | Initial insider ownership | Mar 11, 2022 | Feb 24, 2022 |
| 3 | Initial insider ownership | Mar 11, 2022 | Feb 24, 2022 |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 14, 2022 | — |
| SC 13G | Ownership over 5% (passive) | Feb 14, 2022 | — |
| SC 13G | Ownership over 5% (passive) | Feb 14, 2022 | — |
| SC 13G | Ownership over 5% (passive) | Feb 8, 2022 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Jan 11, 2022 | — |
| SC 13G | Ownership over 5% (passive) | Jun 21, 2021 | — |
| SC 13G | Ownership over 5% (passive) | Feb 16, 2021 | — |
| SC 13G | Ownership over 5% (passive) | Feb 12, 2021 | — |
Showing 56 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.
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Company profile
- Industry
- Services-Management Consulting Services (SIC 8742)
- Listed as
- DFNS (Nasdaq), DFNSW (Nasdaq)
- Fiscal year ends
- December 31
- Incorporated in
- DE
- Headquarters
- New York, NY
- SEC filer status
- , Emerging growth company
- SEC CIK
- 1787518
- Former names
- Nukkleus Inc. (until Feb 9, 2026); Brilliant Acquisition Corp (until Dec 26, 2023)
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Source: SEC EDGAR filings. This is company-reported data, not investment advice.