Soligenix, Inc. SEC filings SNGX
Soligenix, Inc. has 1,001 filings in SEC EDGAR's recent list, going back to Dec 3, 2008. Its latest annual report, Form ARS, was filed on Aug 3, 2026 for the period ended Dec 31, 2025. The latest quarterly report (Form 10-Q) was filed on Aug 7, 2026, covering the quarter ended Jun 30, 2026. The most recent current report (Form 8-K) was filed on Sep 21, 2026 (bylaw or fiscal year change, shareholder vote results, other events). The company's fiscal year ends on December 31.
| Form | Description | Filed | Period |
|---|---|---|---|
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Nov 2, 2026 | — |
| 4 | Insider transaction | Oct 13, 2026 | Oct 12, 2026 |
| 4 | Insider transaction | Oct 13, 2026 | Oct 12, 2026 |
| 4 | Insider transaction | Oct 13, 2026 | Oct 12, 2026 |
| 4 | Insider transaction | Oct 13, 2026 | Oct 12, 2026 |
| 4 | Insider transaction | Oct 13, 2026 | Oct 12, 2026 |
| 4 | Insider transaction | Oct 13, 2026 | Oct 12, 2026 |
| 4 | Insider transaction | Oct 13, 2026 | Oct 12, 2026 |
| 4 | Insider transaction | Sep 18, 2026 | Sep 17, 2026 |
| 4 | Insider transaction | Sep 18, 2026 | Sep 17, 2026 |
| 4 | Insider transaction | Sep 18, 2026 | Sep 17, 2026 |
| 4 | Insider transaction | Sep 18, 2026 | Sep 17, 2026 |
| SCHEDULE 13G | Ownership over 5% (passive) | Jun 25, 2026 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Feb 17, 2026 | — |
| 4 | Insider transaction | Dec 12, 2025 | Dec 11, 2025 |
| 4 | Insider transaction | Dec 12, 2025 | Dec 11, 2025 |
| 4 | Insider transaction | Dec 12, 2025 | Dec 11, 2025 |
| 4 | Insider transaction | Dec 12, 2025 | Dec 11, 2025 |
| SCHEDULE 13G | Ownership over 5% (passive) | Nov 14, 2025 | — |
| 4 | Insider transaction | Oct 3, 2025 | Oct 2, 2025 |
| SCHEDULE 13G | Ownership over 5% (passive) | Oct 1, 2025 | — |
| 4 | Insider transaction | Jun 20, 2025 | Jun 20, 2025 |
| 4 | Insider transaction | Jun 20, 2025 | Jun 20, 2025 |
| 4 | Insider transaction | Jun 20, 2025 | Jun 20, 2025 |
| 4 | Insider transaction | Jun 20, 2025 | Jun 20, 2025 |
| 4 | Insider transaction | Dec 13, 2024 | Dec 12, 2024 |
| 4 | Insider transaction | Dec 13, 2024 | Dec 12, 2024 |
| 4 | Insider transaction | Dec 13, 2024 | Dec 12, 2024 |
| 4 | Insider transaction | Dec 13, 2024 | Dec 12, 2024 |
| 4 | Insider transaction | Dec 13, 2024 | Dec 12, 2024 |
| 4 | Insider transaction | Dec 13, 2024 | Dec 12, 2024 |
| 4 | Insider transaction | Dec 13, 2024 | Dec 12, 2024 |
| 4 | Insider transaction | Dec 13, 2024 | Dec 12, 2024 |
| 4 | Insider transaction | Dec 15, 2023 | Dec 15, 2023 |
| 4 | Insider transaction | Dec 15, 2023 | Dec 15, 2023 |
| 4 | Insider transaction | Dec 15, 2023 | Dec 15, 2023 |
| 4 | Insider transaction | Dec 15, 2023 | Dec 15, 2023 |
| 4 | Insider transaction | Dec 8, 2023 | Dec 8, 2023 |
| 4 | Insider transaction | Dec 8, 2023 | Dec 8, 2023 |
| 4 | Insider transaction | Dec 8, 2023 | Dec 8, 2023 |
| 4 | Insider transaction | Dec 8, 2023 | Dec 8, 2023 |
| 4 | Insider transaction | May 5, 2023 | May 3, 2023 |
| 3 | Initial insider ownership | May 5, 2023 | May 3, 2023 |
| 4 | Insider transaction | Dec 9, 2022 | Dec 8, 2022 |
| 4 | Insider transaction | Dec 9, 2022 | Dec 8, 2022 |
| 4 | Insider transaction | Dec 9, 2022 | Dec 8, 2022 |
| 4 | Insider transaction | Dec 9, 2022 | Dec 8, 2022 |
| 4 | Insider transaction | Nov 21, 2022 | Nov 17, 2022 |
| 4 | Insider transaction | Nov 21, 2022 | Nov 17, 2022 |
| 4 | Insider transaction | Nov 21, 2022 | Nov 17, 2022 |
| 4 | Insider transaction | Nov 21, 2022 | Nov 17, 2022 |
| 4 | Insider transaction | May 18, 2022 | May 18, 2022 |
| 4 | Insider transaction | May 18, 2022 | May 18, 2022 |
| 4 | Insider transaction | Jan 21, 2022 | Jan 21, 2022 |
| 4 | Insider transaction | Jan 21, 2022 | Jan 21, 2022 |
| 4 | Insider transaction | Jan 4, 2022 | Jan 3, 2022 |
| 4 | Insider transaction | Dec 20, 2021 | Dec 17, 2021 |
| 4 | Insider transaction | Dec 15, 2021 | Dec 15, 2021 |
| 4 | Insider transaction | Dec 15, 2021 | Dec 14, 2021 |
| 4 | Insider transaction | Dec 14, 2021 | Dec 14, 2021 |
| 4 | Insider transaction | Dec 10, 2021 | Dec 9, 2021 |
| 4 | Insider transaction | Dec 10, 2021 | Dec 9, 2021 |
| 4 | Insider transaction | Dec 10, 2021 | Dec 9, 2021 |
| 4 | Insider transaction | Dec 10, 2021 | Dec 9, 2021 |
| 4 | Insider transaction | Sep 24, 2021 | Sep 23, 2021 |
| 4 | Insider transaction | Sep 24, 2021 | Sep 23, 2021 |
| 4 | Insider transaction | Sep 24, 2021 | Sep 23, 2021 |
| 4 | Insider transaction | Sep 24, 2021 | Sep 23, 2021 |
| 4 | Insider transaction | May 18, 2021 | May 14, 2021 |
| 4 | Insider transaction | Jan 4, 2021 | Jan 4, 2021 |
| 4 | Insider transaction | Dec 11, 2020 | Dec 10, 2020 |
| 4 | Insider transaction | Dec 11, 2020 | Dec 10, 2020 |
| 4 | Insider transaction | Dec 11, 2020 | Dec 10, 2020 |
| 4 | Insider transaction | Dec 11, 2020 | Dec 10, 2020 |
| 4 | Insider transaction | Sep 18, 2020 | Sep 16, 2020 |
| 4 | Insider transaction | Sep 18, 2020 | Sep 16, 2020 |
| 4 | Insider transaction | Sep 18, 2020 | Sep 16, 2020 |
| 4 | Insider transaction | Sep 18, 2020 | Sep 16, 2020 |
| 4 | Insider transaction | Jun 19, 2020 | Jun 18, 2020 |
| SC 13G/A | Amended ownership over 5% (passive) | May 6, 2020 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Apr 23, 2020 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 7, 2020 | — |
| 4 | Insider transaction | Jan 2, 2020 | Jan 2, 2020 |
| 4 | Insider transaction | Dec 13, 2019 | Dec 12, 2019 |
| 4 | Insider transaction | Dec 13, 2019 | Dec 12, 2019 |
| 4 | Insider transaction | Dec 13, 2019 | Dec 12, 2019 |
| 4 | Insider transaction | Dec 13, 2019 | Dec 12, 2019 |
| 4 | Insider transaction | Nov 19, 2019 | Nov 19, 2019 |
| 4 | Insider transaction | Nov 19, 2019 | Nov 19, 2019 |
| 4 | Insider transaction | Sep 23, 2019 | Sep 23, 2019 |
| 4 | Insider transaction | Sep 23, 2019 | Sep 19, 2019 |
| 4 | Insider transaction | Sep 11, 2019 | Sep 9, 2019 |
| 3 | Initial insider ownership | Sep 11, 2019 | Sep 9, 2019 |
| 4 | Insider transaction | Sep 10, 2019 | Sep 6, 2019 |
| 4 | Insider transaction | Sep 10, 2019 | Sep 6, 2019 |
| 4 | Insider transaction | Sep 10, 2019 | Sep 6, 2019 |
| 4 | Insider transaction | Sep 10, 2019 | Sep 6, 2019 |
| 4 | Insider transaction | Sep 10, 2019 | Sep 6, 2019 |
| 4 | Insider transaction | Jul 10, 2019 | Jun 28, 2019 |
| 3 | Initial insider ownership | Jul 8, 2019 | Jul 8, 2019 |
| 4 | Insider transaction | Jul 8, 2019 | Jul 8, 2019 |
| 4 | Insider transaction | Apr 22, 2019 | Apr 22, 2019 |
| 4 | Insider transaction | Apr 22, 2019 | Apr 22, 2019 |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 13, 2019 | — |
| 4 | Insider transaction | Jan 4, 2019 | Jan 2, 2019 |
| 4 | Insider transaction | Dec 14, 2018 | Dec 13, 2018 |
| 4 | Insider transaction | Dec 14, 2018 | Dec 13, 2018 |
| 4 | Insider transaction | Dec 14, 2018 | Dec 13, 2018 |
| 4 | Insider transaction | Dec 14, 2018 | Dec 13, 2018 |
| 4 | Insider transaction | Oct 18, 2018 | Oct 18, 2018 |
| 4 | Insider transaction | Oct 17, 2018 | Oct 17, 2018 |
| 4 | Insider transaction | Sep 28, 2018 | Sep 27, 2018 |
| 4 | Insider transaction | Sep 28, 2018 | Sep 27, 2018 |
| 4 | Insider transaction | Sep 28, 2018 | Sep 27, 2018 |
| 4 | Insider transaction | Sep 28, 2018 | Sep 27, 2018 |
| 4 | Insider transaction | Sep 28, 2018 | Sep 27, 2018 |
| 4 | Insider transaction | Aug 22, 2018 | Aug 22, 2018 |
| SC 13G/A | Amended ownership over 5% (passive) | Jul 30, 2018 | — |
| 4 | Insider transaction | Jul 25, 2018 | Jul 20, 2018 |
| 3 | Initial insider ownership | Jul 25, 2018 | Jul 2, 2018 |
| SC 13G | Ownership over 5% (passive) | Jul 9, 2018 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 13, 2018 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 13, 2018 | — |
| 4 | Insider transaction | Dec 11, 2017 | Dec 7, 2017 |
| 4 | Insider transaction | Dec 11, 2017 | Dec 7, 2017 |
| 4 | Insider transaction | Dec 11, 2017 | Dec 7, 2017 |
| 4 | Insider transaction | Dec 11, 2017 | Dec 7, 2017 |
| 4 | Insider transaction | Dec 1, 2017 | Nov 29, 2017 |
| SC 13D/A | Amended ownership over 5% (active) | Dec 1, 2017 | — |
| SC 13G | Ownership over 5% (passive) | Nov 13, 2017 | — |
| SC 13G | Ownership over 5% (passive) | Nov 7, 2017 | — |
| SC 13G | Ownership over 5% (passive) | Oct 12, 2017 | — |
| SC 13D/A | Amended ownership over 5% (active) | Jun 16, 2017 | — |
| 4 | Insider transaction | Jun 12, 2017 | Jun 8, 2017 |
| 4 | Insider transaction | Jun 12, 2017 | Jun 8, 2017 |
| 4 | Insider transaction | Jun 12, 2017 | Jun 8, 2017 |
| 4 | Insider transaction | Jun 12, 2017 | Jun 8, 2017 |
| 4 | Insider transaction | Jun 12, 2017 | Jun 8, 2017 |
| SC 13D/A | Amended ownership over 5% (active) | May 26, 2017 | — |
| SC 13D/A | Amended ownership over 5% (active) | May 18, 2017 | — |
| 4 | Insider transaction | May 8, 2017 | May 4, 2017 |
| SC 13D/A | Amended ownership over 5% (active) | May 8, 2017 | — |
| 4 | Insider transaction | Apr 4, 2017 | Mar 31, 2017 |
| 4 | Insider transaction | Apr 4, 2017 | Mar 31, 2017 |
| 4 | Insider transaction | Apr 4, 2017 | Mar 31, 2017 |
| 4 | Insider transaction | Apr 4, 2017 | Mar 31, 2017 |
| 4 | Insider transaction | Dec 20, 2016 | Dec 16, 2016 |
| 4 | Insider transaction | Dec 20, 2016 | Dec 16, 2016 |
| 4 | Insider transaction | Dec 20, 2016 | Dec 16, 2016 |
| SC 13G | Ownership over 5% (passive) | Sep 19, 2016 | — |
| 4 | Insider transaction | Jun 22, 2016 | Jun 16, 2016 |
| 3 | Initial insider ownership | Jun 22, 2016 | Jun 16, 2016 |
| 4 | Insider transaction | Jun 20, 2016 | Jun 16, 2016 |
| 4 | Insider transaction | Jun 20, 2016 | Jun 16, 2016 |
| 4 | Insider transaction | Jun 20, 2016 | Jun 16, 2016 |
| 4 | Insider transaction | Jun 20, 2016 | Jun 16, 2016 |
| 4 | Insider transaction | Jun 20, 2016 | Jun 16, 2016 |
| 4 | Insider transaction | Jan 4, 2016 | Dec 31, 2015 |
| 4 | Insider transaction | Jan 4, 2016 | Dec 31, 2015 |
| 4 | Insider transaction | Jan 4, 2016 | Dec 31, 2015 |
| 4 | Insider transaction | Jan 4, 2016 | Dec 31, 2015 |
| 4 | Insider transaction | Dec 23, 2015 | Dec 23, 2015 |
| 4 | Insider transaction | Dec 23, 2015 | Dec 22, 2015 |
| 4 | Insider transaction | Aug 31, 2015 | Aug 31, 2015 |
| 4 | Insider transaction | Jul 1, 2015 | Jul 1, 2015 |
| 4 | Insider transaction | Jun 19, 2015 | Jun 18, 2015 |
| 4 | Insider transaction | Jun 19, 2015 | Jun 18, 2015 |
| 4 | Insider transaction | Jun 19, 2015 | Jun 18, 2015 |
| 4 | Insider transaction | Jun 19, 2015 | Jun 18, 2015 |
| 4 | Insider transaction | Jun 19, 2015 | Jun 18, 2015 |
| 4 | Insider transaction | Apr 9, 2015 | Apr 9, 2015 |
| 4 | Insider transaction | Apr 9, 2015 | Apr 9, 2015 |
| 4 | Insider transaction | Dec 24, 2014 | Dec 22, 2014 |
| 4 | Insider transaction | Dec 24, 2014 | Dec 22, 2014 |
| 3 | Initial insider ownership | Dec 10, 2014 | Dec 5, 2014 |
| 4 | Insider transaction | Dec 8, 2014 | Dec 4, 2014 |
| 4 | Insider transaction | Dec 8, 2014 | Dec 4, 2014 |
| 4 | Insider transaction | Dec 8, 2014 | Dec 4, 2014 |
| SC 13G | Ownership over 5% (passive) | Oct 3, 2014 | — |
| 4 | Insider transaction | Aug 5, 2014 | Aug 5, 2014 |
| 4 | Insider transaction | Jun 20, 2014 | Jun 19, 2014 |
| 4 | Insider transaction | Jun 20, 2014 | Jun 19, 2014 |
| 4 | Insider transaction | Jun 20, 2014 | Jun 19, 2014 |
| 4 | Insider transaction | Jun 20, 2014 | Jun 19, 2014 |
| 4 | Insider transaction | Jun 20, 2014 | Jun 19, 2014 |
| 4 | Insider transaction | May 19, 2014 | May 19, 2014 |
| 4 | Insider transaction | May 16, 2014 | May 14, 2014 |
| 4 | Insider transaction | May 14, 2014 | May 13, 2014 |
| 4 | Insider transaction | Jan 8, 2014 | Jan 6, 2014 |
| 3 | Initial insider ownership | Jan 8, 2014 | Jan 6, 2014 |
| 4 | Insider transaction | Dec 9, 2013 | Dec 5, 2013 |
| 4 | Insider transaction | Dec 9, 2013 | Dec 5, 2013 |
| 4 | Insider transaction | Dec 9, 2013 | Dec 5, 2013 |
| 4 | Insider transaction | Dec 9, 2013 | Dec 5, 2013 |
| 3 | Initial insider ownership | Dec 9, 2013 | Dec 5, 2013 |
| 4 | Insider transaction | Oct 1, 2013 | Sep 27, 2013 |
| 4 | Insider transaction | Oct 1, 2013 | Sep 27, 2013 |
| 4 | Insider transaction | Oct 1, 2013 | Sep 27, 2013 |
| 4 | Insider transaction | Oct 1, 2013 | Sep 27, 2013 |
| 4 | Insider transaction | Sep 27, 2013 | Sep 25, 2013 |
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
- SNGX (Nasdaq)
- Fiscal year ends
- December 31
- Incorporated in
- DE
- Headquarters
- Princeton, NJ
- SEC filer status
- Non-accelerated filer, Smaller reporting company
- SEC CIK
- 812796
- Former names
- SOLIGENIX, INC. (until Nov 2, 2026); DOR BIOPHARMA INC (until Sep 29, 2009); ENDOREX CORP (until Oct 24, 2001); IMMUNOTHERAPEUTICS INC (until Apr 30, 1996)
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Source: SEC EDGAR filings. This is company-reported data, not investment advice.