Siga Technologies Inc SEC filings SIGA
Siga Technologies Inc has 1,002 filings in SEC EDGAR's recent list, going back to Jul 11, 2003. Its latest annual report, Form ARS, was filed on Apr 28, 2026 for the period ended Dec 31, 2025. The latest quarterly report (Form 10-Q) was filed on Aug 6, 2026, covering the quarter ended Jun 30, 2026. The most recent current report (Form 8-K) was filed on Aug 6, 2026 (results of operations). The company's fiscal year ends on December 31.
| Form | Description | Filed | Period |
|---|---|---|---|
| 4 | Insider transaction | Jun 10, 2026 | Jun 9, 2026 |
| 4 | Insider transaction | Jun 10, 2026 | Jun 9, 2026 |
| 4 | Insider transaction | Jun 10, 2026 | Jun 9, 2026 |
| 4 | Insider transaction | Jun 10, 2026 | Jun 9, 2026 |
| 4 | Insider transaction | Jun 10, 2026 | Jun 9, 2026 |
| 4 | Insider transaction | Jun 10, 2026 | Jun 9, 2026 |
| 4 | Insider transaction | Jun 10, 2026 | Jun 9, 2026 |
| 4 | Insider transaction | Mar 26, 2026 | Mar 25, 2026 |
| 4 | Insider transaction | Mar 17, 2026 | Mar 13, 2026 |
| 4 | Insider transaction | Mar 17, 2026 | Mar 13, 2026 |
| 4 | Insider transaction | Mar 17, 2026 | Mar 13, 2026 |
| 4 | Insider transaction | Mar 17, 2026 | Mar 13, 2026 |
| 4 | Insider transaction | Jan 28, 2026 | Jan 27, 2026 |
| 4 | Insider transaction | Jul 2, 2025 | Jul 1, 2025 |
| 4 | Insider transaction | Jul 2, 2025 | Jul 1, 2025 |
| 4 | Insider transaction | Jun 11, 2025 | Jun 10, 2025 |
| 4 | Insider transaction | Jun 11, 2025 | Jun 10, 2025 |
| 4 | Insider transaction | Jun 11, 2025 | Jun 10, 2025 |
| 4 | Insider transaction | Jun 11, 2025 | Jun 10, 2025 |
| 4 | Insider transaction | Jun 11, 2025 | Jun 10, 2025 |
| 4 | Insider transaction | Jun 11, 2025 | Jun 10, 2025 |
| 4 | Insider transaction | Jun 11, 2025 | Jun 10, 2025 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Apr 25, 2025 | — |
| 4 | Insider transaction | Apr 21, 2025 | Apr 18, 2025 |
| 4 | Insider transaction | Mar 26, 2025 | Mar 25, 2025 |
| 4 | Insider transaction | Mar 19, 2025 | Mar 17, 2025 |
| 3 | Initial insider ownership | Mar 19, 2025 | Mar 17, 2025 |
| 4 | Insider transaction | Mar 14, 2025 | Mar 13, 2025 |
| 4 | Insider transaction | Mar 14, 2025 | Mar 13, 2025 |
| 4 | Insider transaction | Mar 14, 2025 | Mar 13, 2025 |
| 4 | Insider transaction | Mar 14, 2025 | Mar 13, 2025 |
| 4 | Insider transaction | Jan 29, 2025 | Jan 27, 2025 |
| SC 13G | Ownership over 5% (passive) | Nov 8, 2024 | — |
| 4 | Insider transaction | Oct 29, 2024 | Oct 25, 2024 |
| SC 13G | Ownership over 5% (passive) | Oct 24, 2024 | — |
| 4 | Insider transaction | Jul 3, 2024 | Jul 1, 2024 |
| 4 | Insider transaction | Jul 3, 2024 | Jul 1, 2024 |
| 4 | Insider transaction | Jun 13, 2024 | Jun 11, 2024 |
| 4 | Insider transaction | Jun 13, 2024 | Jun 11, 2024 |
| 4 | Insider transaction | Jun 13, 2024 | Jun 11, 2024 |
| 4 | Insider transaction | Jun 13, 2024 | Jun 11, 2024 |
| 4 | Insider transaction | Jun 13, 2024 | Jun 11, 2024 |
| 4 | Insider transaction | Jun 13, 2024 | Jun 11, 2024 |
| 4 | Insider transaction | Jun 13, 2024 | Jun 11, 2024 |
| 4 | Insider transaction | Jun 13, 2024 | Jun 11, 2024 |
| 4 | Insider transaction | Mar 27, 2024 | Mar 25, 2024 |
| 3 | Initial insider ownership | Mar 27, 2024 | Mar 25, 2024 |
| SC 13G | Ownership over 5% (passive) | Feb 1, 2024 | — |
| 4 | Insider transaction | Jan 30, 2024 | Jan 27, 2024 |
| 3 | Initial insider ownership | Jan 30, 2024 | Jan 27, 2024 |
| 4 | Insider transaction | Jun 15, 2023 | Jun 13, 2023 |
| 4 | Insider transaction | Jun 15, 2023 | Jun 13, 2023 |
| 4 | Insider transaction | Jun 15, 2023 | Jun 13, 2023 |
| 4 | Insider transaction | Jun 15, 2023 | Jun 13, 2023 |
| 4 | Insider transaction | Jun 15, 2023 | Jun 13, 2023 |
| 4 | Insider transaction | Jun 15, 2023 | Jun 13, 2023 |
| 4 | Insider transaction | Jun 15, 2023 | Jun 13, 2023 |
| 4 | Insider transaction | Jun 15, 2023 | Jun 13, 2023 |
| 3 | Initial insider ownership | Jun 15, 2023 | Jun 13, 2023 |
| 4 | Insider transaction | May 12, 2023 | May 11, 2023 |
| 4 | Insider transaction | May 12, 2023 | May 11, 2023 |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 14, 2023 | — |
| 4 | Insider transaction | Nov 14, 2022 | Nov 10, 2022 |
| 4 | Insider transaction | Nov 14, 2022 | Nov 10, 2022 |
| 3 | Initial insider ownership | Nov 14, 2022 | Nov 10, 2022 |
| 3 | Initial insider ownership | Nov 14, 2022 | Nov 10, 2022 |
| SC 13G | Ownership over 5% (passive) | Jun 24, 2022 | — |
| 4 | Insider transaction | Jun 16, 2022 | Jun 14, 2022 |
| 4 | Insider transaction | Jun 16, 2022 | Jun 14, 2022 |
| 4 | Insider transaction | Jun 16, 2022 | Jun 14, 2022 |
| 4 | Insider transaction | Jun 16, 2022 | Jun 14, 2022 |
| 4 | Insider transaction | Jun 16, 2022 | Jun 14, 2022 |
| 4 | Insider transaction | Jun 16, 2022 | Jun 14, 2022 |
| 4 | Insider transaction | Jun 16, 2022 | Jun 14, 2022 |
| 4 | Insider transaction | Jun 16, 2022 | Jun 14, 2022 |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 9, 2022 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 1, 2022 | — |
| 4 | Insider transaction | Dec 10, 2021 | Dec 9, 2021 |
| SC 13D/A | Amended ownership over 5% (active) | Nov 22, 2021 | — |
| SC 13D/A | Amended ownership over 5% (active) | Sep 17, 2021 | — |
| SC 13D/A | Amended ownership over 5% (active) | Aug 17, 2021 | — |
| 4 | Insider transaction | Aug 3, 2021 | Jul 31, 2021 |
| 4 | Insider transaction | Aug 3, 2021 | Jul 31, 2021 |
| 4 | Insider transaction | Jun 17, 2021 | Jun 15, 2021 |
| 4 | Insider transaction | Jun 17, 2021 | Jun 15, 2021 |
| 4 | Insider transaction | Jun 17, 2021 | Jun 15, 2021 |
| 4 | Insider transaction | Jun 17, 2021 | Jun 15, 2021 |
| 4 | Insider transaction | Jun 17, 2021 | Jun 15, 2021 |
| 4 | Insider transaction | Jun 17, 2021 | Jun 15, 2021 |
| 4 | Insider transaction | Jun 17, 2021 | Jun 15, 2021 |
| 4 | Insider transaction | Jun 17, 2021 | Jun 15, 2021 |
| 4 | Insider transaction | Jun 17, 2021 | Jun 15, 2021 |
| 3 | Initial insider ownership | Jun 17, 2021 | Jun 15, 2021 |
| 4 | Insider transaction | Jun 17, 2021 | Jun 15, 2021 |
| 3 | Initial insider ownership | Jun 17, 2021 | Jun 15, 2021 |
| SC 13D | Ownership over 5% (active) | Feb 23, 2021 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 1, 2021 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Jan 4, 2021 | — |
| 4 | Insider transaction | Dec 11, 2020 | Dec 10, 2020 |
| 3 | Initial insider ownership | Dec 11, 2020 | Dec 10, 2020 |
| 4 | Insider transaction | Aug 28, 2020 | Aug 27, 2020 |
| 4 | Insider transaction | Aug 7, 2020 | Aug 6, 2020 |
| 3 | Initial insider ownership | Aug 7, 2020 | Aug 6, 2020 |
| 4 | Insider transaction | Aug 4, 2020 | Jul 31, 2020 |
| 4 | Insider transaction | Aug 4, 2020 | Jul 31, 2020 |
| 4 | Insider transaction | Jun 18, 2020 | Jun 16, 2020 |
| 4 | Insider transaction | Jun 18, 2020 | Jun 16, 2020 |
| 4 | Insider transaction | Jun 18, 2020 | Jun 16, 2020 |
| 4 | Insider transaction | Jun 18, 2020 | Jun 16, 2020 |
| 4 | Insider transaction | Jun 18, 2020 | Jun 16, 2020 |
| 4 | Insider transaction | Jun 18, 2020 | Jun 16, 2020 |
| 4 | Insider transaction | Jun 18, 2020 | Jun 16, 2020 |
| 4 | Insider transaction | Jun 18, 2020 | Jun 16, 2020 |
| 3 | Initial insider ownership | Jun 18, 2020 | Jun 16, 2020 |
| SC 13G | Ownership over 5% (passive) | Jun 5, 2020 | — |
| 4 | Insider transaction | May 22, 2020 | May 21, 2020 |
| 4 | Insider transaction | May 22, 2020 | May 21, 2020 |
| 4 | Insider transaction | May 22, 2020 | May 21, 2020 |
| 4 | Insider transaction | May 22, 2020 | May 21, 2020 |
| 4 | Insider transaction | May 22, 2020 | May 21, 2020 |
| 4 | Insider transaction | May 22, 2020 | May 21, 2020 |
| 4 | Insider transaction | May 22, 2020 | May 21, 2020 |
| 4 | Insider transaction | May 22, 2020 | May 21, 2020 |
| SC 13G | Ownership over 5% (passive) | May 14, 2020 | — |
| SC 13D/A | Amended ownership over 5% (active) | May 14, 2020 | — |
| SC 13D/A | Amended ownership over 5% (active) | Feb 25, 2020 | — |
| SC 13D/A | Amended ownership over 5% (active) | Feb 13, 2020 | — |
| SC 13D | Ownership over 5% (active) | Feb 13, 2020 | — |
| SC 13G | Ownership over 5% (passive) | Feb 7, 2020 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Jan 2, 2020 | — |
| 4 | Insider transaction | Dec 10, 2019 | Dec 9, 2019 |
| 4 | Insider transaction | Dec 10, 2019 | Dec 9, 2019 |
| 4 | Insider transaction | Dec 10, 2019 | Dec 9, 2019 |
| 4 | Insider transaction | Dec 10, 2019 | Dec 9, 2019 |
| 4 | Insider transaction | Nov 26, 2019 | Nov 22, 2019 |
| 4 | Insider transaction | Nov 26, 2019 | Nov 22, 2019 |
| 4 | Insider transaction | Aug 26, 2019 | Aug 23, 2019 |
| 4 | Insider transaction | Aug 12, 2019 | Aug 9, 2019 |
| 4 | Insider transaction | Aug 2, 2019 | Jul 31, 2019 |
| 4 | Insider transaction | Aug 2, 2019 | Jul 31, 2019 |
| 4 | Insider transaction | Jul 2, 2019 | Oct 16, 2014 |
| 4/A | Form 4a | Jul 2, 2019 | Sep 17, 2013 |
| 4 | Insider transaction | Jun 7, 2019 | Jun 5, 2019 |
| 4 | Insider transaction | Jun 7, 2019 | Jun 5, 2019 |
| 4 | Insider transaction | May 22, 2019 | May 21, 2019 |
| 4 | Insider transaction | May 22, 2019 | May 21, 2019 |
| 4 | Insider transaction | May 22, 2019 | May 21, 2019 |
| 4 | Insider transaction | May 22, 2019 | May 21, 2019 |
| 4 | Insider transaction | May 22, 2019 | May 21, 2019 |
| 4 | Insider transaction | May 22, 2019 | May 21, 2019 |
| 4 | Insider transaction | May 22, 2019 | May 21, 2019 |
| 4 | Insider transaction | May 22, 2019 | May 21, 2019 |
| 4 | Insider transaction | May 22, 2019 | May 21, 2019 |
| 3 | Initial insider ownership | May 22, 2019 | May 21, 2019 |
| 4 | Insider transaction | Mar 15, 2019 | Jan 9, 2019 |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 14, 2019 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 13, 2019 | — |
| 4 | Insider transaction | Dec 14, 2018 | Dec 12, 2018 |
| 4 | Insider transaction | Nov 26, 2018 | Nov 22, 2018 |
| 4 | Insider transaction | Nov 26, 2018 | Nov 22, 2018 |
| 4 | Insider transaction | Nov 19, 2018 | Nov 16, 2018 |
| 4 | Insider transaction | Nov 13, 2018 | Nov 12, 2018 |
| 4 | Insider transaction | Nov 13, 2018 | Nov 12, 2018 |
| 4 | Insider transaction | Nov 13, 2018 | Nov 12, 2018 |
| 4 | Insider transaction | Oct 18, 2018 | Oct 16, 2018 |
| SC 13G/A | Amended ownership over 5% (passive) | Oct 3, 2018 | — |
| SC 13G | Ownership over 5% (passive) | Oct 2, 2018 | — |
| 4 | Insider transaction | Sep 13, 2018 | Sep 11, 2018 |
| 4 | Insider transaction | Aug 22, 2018 | Aug 20, 2018 |
| 4 | Insider transaction | Aug 22, 2018 | Aug 20, 2018 |
| 4 | Insider transaction | May 23, 2018 | May 22, 2018 |
| 4 | Insider transaction | May 23, 2018 | May 22, 2018 |
| 4 | Insider transaction | May 23, 2018 | May 22, 2018 |
| 4 | Insider transaction | May 23, 2018 | May 22, 2018 |
| 4 | Insider transaction | May 23, 2018 | May 22, 2018 |
| 4 | Insider transaction | May 23, 2018 | May 22, 2018 |
| 4 | Insider transaction | May 23, 2018 | May 22, 2018 |
| 4 | Insider transaction | Apr 19, 2018 | Apr 18, 2018 |
| 4 | Insider transaction | Apr 18, 2018 | Apr 17, 2018 |
| 4 | Insider transaction | Apr 18, 2018 | Apr 16, 2018 |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 14, 2018 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 14, 2018 | — |
| SC 13G | Ownership over 5% (passive) | Nov 29, 2017 | — |
| 4 | Insider transaction | Nov 17, 2017 | Nov 13, 2017 |
| 4 | Insider transaction | Nov 14, 2017 | Nov 10, 2017 |
| 4 | Insider transaction | Jun 12, 2017 | Jun 8, 2017 |
| 4 | Insider transaction | May 24, 2017 | May 23, 2017 |
| 4 | Insider transaction | May 24, 2017 | May 23, 2017 |
| 4 | Insider transaction | May 24, 2017 | May 23, 2017 |
| 4 | Insider transaction | May 24, 2017 | May 23, 2017 |
| 4 | Insider transaction | May 24, 2017 | May 23, 2017 |
| 4 | Insider transaction | May 24, 2017 | May 23, 2017 |
| 4 | Insider transaction | May 24, 2017 | May 23, 2017 |
| 3 | Initial insider ownership | May 24, 2017 | May 23, 2017 |
| 4 | Insider transaction | May 19, 2017 | May 17, 2017 |
| 4 | Insider transaction | May 19, 2017 | May 17, 2017 |
| 4 | Insider transaction | May 19, 2017 | May 17, 2017 |
| 4 | Insider transaction | May 19, 2017 | May 17, 2017 |
| 4 | Insider transaction | May 19, 2017 | May 17, 2017 |
| 4 | Insider transaction | May 19, 2017 | May 17, 2017 |
Showing 200 filings, the most recent 200. 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
- Pharmaceutical Preparations (SIC 2834)
- Listed as
- SIGA (Nasdaq)
- Fiscal year ends
- December 31
- Incorporated in
- DE
- Headquarters
- New York, NY
- SEC filer status
- Accelerated filer
- SEC CIK
- 1010086
- Former names
- SIGA PHARMACEUTICALS INC (until May 25, 2000)
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Source: SEC EDGAR filings. This is company-reported data, not investment advice.