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 |
|---|---|---|---|
| PRER14A | Form- prer14a | Jul 23, 2026 | — |
| EFFECT | Filing | Apr 2, 2026 | — |
| EFFECT | Filing | Apr 2, 2026 | — |
| EFFECT | Filing | Apr 2, 2026 | — |
| EFFECT | Filing | Apr 2, 2026 | — |
| EFFECT | Filing | Sep 25, 2025 | — |
| CORRESP | Letter to the SEC | Sep 23, 2025 | — |
| CORRESP | Letter to the SEC | Sep 23, 2025 | — |
| UPLOAD | Letter from the SEC | Sep 2, 2025 | — |
| DRS | Filing | Aug 27, 2025 | — |
| EFFECT | Filing | Mar 26, 2025 | — |
| EFFECT | Filing | Mar 26, 2025 | — |
| EFFECT | Filing | Mar 26, 2025 | — |
| EFFECT | Filing | Aug 2, 2024 | — |
| CORRESP | Letter to the SEC | Jul 30, 2024 | — |
| UPLOAD | Letter from the SEC | Jul 29, 2024 | — |
| EFFECT | Filing | Apr 15, 2024 | — |
| CORRESP | Letter to the SEC | Apr 15, 2024 | — |
| CORRESP | Letter to the SEC | Apr 15, 2024 | — |
| CORRESP | Letter to the SEC | Apr 3, 2024 | — |
| CORRESP | Letter to the SEC | Apr 2, 2024 | — |
| CORRESP | Letter to the SEC | Apr 2, 2024 | — |
| UPLOAD | Letter from the SEC | Jan 19, 2024 | — |
| EFFECT | Filing | Dec 15, 2023 | — |
| CORRESP | Letter to the SEC | Dec 14, 2023 | — |
| CORRESP | Letter to the SEC | Dec 6, 2023 | — |
| CORRESP | Letter to the SEC | Nov 30, 2023 | — |
| UPLOAD | Letter from the SEC | Sep 12, 2023 | — |
| NT 10-Q | Filing | Aug 14, 2023 | Jun 30, 2023 |
| EFFECT | Filing | May 5, 2023 | — |
| CORRESP | Letter to the SEC | May 4, 2023 | — |
| CORRESP | Letter to the SEC | Apr 19, 2023 | — |
| UPLOAD | Letter from the SEC | Apr 7, 2023 | — |
| 8-A12G | Filing | Dec 27, 2022 | — |
| 25-NSE | Delisting notice | Dec 15, 2021 | — |
| NT 10-Q | Notification of late filing | May 18, 2021 | Mar 31, 2021 |
| EFFECT | Filing | Jan 29, 2021 | — |
| CORRESP | Letter to the SEC | Jan 27, 2021 | — |
| UPLOAD | Letter from the SEC | Jan 22, 2021 | — |
| EFFECT | Filing | Aug 28, 2020 | — |
| CORRESP | Letter to the SEC | Aug 26, 2020 | — |
| CORRESP | Letter to the SEC | Jul 31, 2020 | — |
| UPLOAD | Letter from the SEC | Jul 24, 2020 | — |
| DEFR14A | Definitive revised additional materials | Aug 17, 2018 | — |
| EFFECT | Filing | Jun 27, 2018 | — |
| EFFECT | Filing | Nov 30, 2017 | — |
| UPLOAD | Letter from the SEC | Nov 28, 2017 | — |
| CORRESP | Letter to the SEC | Nov 28, 2017 | — |
| D | Filing | Nov 8, 2017 | — |
| EFFECT | Filing | Aug 11, 2017 | — |
| CORRESP | Letter to the SEC | Aug 9, 2017 | — |
| UPLOAD | Letter from the SEC | May 16, 2017 | — |
| EFFECT | Filing | May 3, 2017 | — |
| CERTNAS | Auto-generated paper document | Dec 12, 2016 | — |
| 8-A12B | For registration of certain classes of securities | Dec 12, 2016 | — |
| EFFECT | Filing | Nov 22, 2016 | — |
| CORRESP | Letter to the SEC | Nov 22, 2016 | — |
| CORRESP | Letter to the SEC | Nov 22, 2016 | — |
| CORRESP | Letter to the SEC | Nov 16, 2016 | — |
| CORRESP | Letter to the SEC | Nov 15, 2016 | — |
| CORRESP | Letter to the SEC | Nov 15, 2016 | — |
| UPLOAD | Letter from the SEC | Oct 17, 2016 | — |
| EFFECT | Filing | Apr 28, 2016 | — |
| CORRESP | Letter to the SEC | Apr 26, 2016 | — |
| UPLOAD | Letter from the SEC | Apr 26, 2016 | — |
| EFFECT | Filing | Apr 14, 2016 | — |
| EFFECT | Filing | Apr 14, 2016 | — |
| EFFECT | Filing | Apr 14, 2016 | — |
| EFFECT | Filing | Apr 14, 2016 | — |
| CORRESP | Letter to the SEC | Apr 14, 2016 | — |
| CORRESP | Letter to the SEC | Apr 13, 2016 | — |
| UPLOAD | Letter from the SEC | Apr 13, 2016 | — |
| EFFECT | Filing | Aug 25, 2015 | — |
| CORRESP | Letter to the SEC | Aug 21, 2015 | — |
| UPLOAD | Letter from the SEC | Aug 20, 2015 | — |
| EFFECT | Filing | Apr 6, 2015 | — |
| EFFECT | Filing | Apr 6, 2015 | — |
| EFFECT | Filing | Apr 6, 2015 | — |
| EFFECT | Filing | Dec 30, 2014 | — |
| EFFECT | Filing | Dec 18, 2014 | — |
| CORRESP | Letter to the SEC | Dec 17, 2014 | — |
| CORRESP | Letter to the SEC | Dec 17, 2014 | — |
| CORRESP | Letter to the SEC | Dec 17, 2014 | — |
| CORRESP | Letter to the SEC | Nov 17, 2014 | — |
| UPLOAD | Letter from the SEC | Nov 14, 2014 | — |
| EFFECT | Filing | Nov 5, 2014 | — |
| CORRESP | Letter to the SEC | Nov 4, 2014 | — |
| CT ORDER | Filing | Oct 16, 2014 | — |
| CT ORDER | Filing | Oct 16, 2014 | — |
| UPLOAD | Letter from the SEC | Oct 14, 2014 | — |
| EFFECT | Filing | May 14, 2014 | — |
| EFFECT | Filing | Apr 21, 2014 | — |
| EFFECT | Filing | Jan 15, 2014 | — |
| CT ORDER | Filing | Oct 21, 2013 | — |
| CT ORDER | Filing | Oct 11, 2013 | — |
| EFFECT | Filing | Jun 26, 2013 | — |
| EFFECT | Filing | Jun 20, 2013 | — |
| CORRESP | Letter to the SEC | Jun 20, 2013 | — |
| CORRESP | Letter to the SEC | Jun 19, 2013 | — |
| UPLOAD | Letter from the SEC | Jun 19, 2013 | — |
| CORRESP | Letter to the SEC | Jun 12, 2013 | — |
| CT ORDER | Filing | May 29, 2013 | — |
| CT ORDER | Filing | May 28, 2013 | — |
| D | Filing | May 3, 2013 | — |
| CORRESP | Letter to the SEC | Feb 28, 2013 | — |
| CT ORDER | Filing | Jan 17, 2013 | — |
| UPLOAD | Letter from the SEC | Nov 20, 2012 | — |
| UPLOAD | Letter from the SEC | Feb 13, 2012 | — |
| CORRESP | Letter to the SEC | Feb 7, 2012 | — |
| UPLOAD | Letter from the SEC | Jan 20, 2012 | — |
| CORRESP | Letter to the SEC | Dec 23, 2011 | — |
| CORRESP | Letter to the SEC | Dec 7, 2011 | — |
| UPLOAD | Letter from the SEC | Dec 5, 2011 | — |
| CT ORDER | Filing | Sep 1, 2011 | — |
| EFFECT | Filing | Apr 22, 2011 | — |
| EFFECT | Filing | Apr 22, 2011 | — |
| EFFECT | Filing | Apr 22, 2011 | — |
| EFFECT | Filing | Apr 22, 2011 | — |
| UPLOAD | Letter from the SEC | Sep 7, 2010 | — |
| CORRESP | Letter to the SEC | Sep 2, 2010 | — |
| UPLOAD | Letter from the SEC | Aug 30, 2010 | — |
| CORRESP | Letter to the SEC | Aug 25, 2010 | — |
| UPLOAD | Letter from the SEC | Aug 24, 2010 | — |
| EFFECT | Filing | Jul 13, 2010 | — |
| CORRESP | Letter to the SEC | Jul 12, 2010 | — |
| CORRESP | Letter to the SEC | Jul 9, 2010 | — |
| UPLOAD | Letter from the SEC | Jul 2, 2010 | — |
| D | Filing | Jul 2, 2010 | — |
| EFFECT | Filing | May 10, 2010 | — |
| EFFECT | Filing | Apr 30, 2010 | — |
| EFFECT | Filing | Apr 30, 2010 | — |
| EFFECT | Filing | Oct 20, 2009 | — |
| EFFECT | Filing | May 6, 2009 | — |
| EFFECT | Filing | Apr 17, 2009 | — |
| DEFR14A | Def 14a proxy - revision | Apr 17, 2009 | — |
| CORRESP | Letter to the SEC | Apr 15, 2009 | — |
| CORRESP | Letter to the SEC | Apr 15, 2009 | — |
| D | Filing | Mar 24, 2009 | — |
| CT ORDER | Filing | Mar 4, 2009 | — |
| D | Filing | Feb 27, 2009 | — |
| UPLOAD | Letter from the SEC | Feb 25, 2009 | — |
| D | Filing | Feb 3, 2009 | — |
| D | Filing | Dec 5, 2008 | — |
Showing 143 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
- 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.