Tenax Therapeutics, Inc. SEC filings TENX
Tenax Therapeutics, Inc. has 995 filings in SEC EDGAR's recent list, going back to Aug 2, 1996. Its latest annual report, Form ARS, was filed on Apr 22, 2026 for the period ended Dec 31, 2025. The latest quarterly report (Form 10-Q) was filed on Nov 5, 2026, covering the quarter ended Sep 30, 2026. The most recent current report (Form 8-K) was filed on Nov 5, 2026 (results of operations). The company's fiscal year ends on December 31.
| Form | Description | Filed | Period |
|---|---|---|---|
| S-8 | Employee stock plan registration | May 12, 2026 | — |
| S-3 | Shelf registration | Mar 24, 2026 | — |
| 424B3 | Prospectus | Apr 23, 2025 | — |
| S-3 | Shelf registration | Apr 15, 2025 | — |
| S-8 | Employee stock plan registration | Nov 26, 2024 | — |
| 424B3 | Prospectus | Sep 12, 2024 | — |
| S-8 | Employee stock plan registration | Aug 30, 2024 | — |
| S-3 | Shelf registration | Aug 30, 2024 | — |
| POS AM | Form pos am | Apr 11, 2024 | — |
| POS AM | Form pos am | Apr 11, 2024 | — |
| 424B3 | Prospectus | Feb 26, 2024 | — |
| 424B3 | Prospectus | Feb 26, 2024 | — |
| 424B3 | Prospectus | Feb 21, 2024 | — |
| 424B3 | Prospectus | Feb 21, 2024 | — |
| 424B3 | Prospectus | Feb 13, 2024 | — |
| 424B4 | Prospectus | Feb 9, 2024 | — |
| 424B3 | Prospectus | Feb 8, 2024 | — |
| 424B3 | Prospectus | Feb 6, 2024 | — |
| S-1/A | Amended registration statement | Feb 2, 2024 | — |
| S-1/A | Amended registration statement | Feb 1, 2024 | — |
| 424B3 | Prospectus | Jan 22, 2024 | — |
| 424B3 | Prospectus | Jan 16, 2024 | — |
| 424B3 | Prospectus | Jan 9, 2024 | — |
| 424B3 | Prospectus | Dec 1, 2023 | — |
| S-1 | Registration statement | Dec 1, 2023 | — |
| 424B3 | Prospectus | Nov 14, 2023 | — |
| 424B3 | Prospectus | Aug 15, 2023 | — |
| 424B3 | Prospectus | Jul 20, 2023 | — |
| 424B3 | Prospectus | Jun 14, 2023 | — |
| 424B3 | Prospectus | Jun 1, 2023 | — |
| 424B3 | Prospectus | Apr 13, 2023 | — |
| 424B3 | Prospectus | Apr 4, 2023 | — |
| 424B4 | Prospectus | Feb 6, 2023 | — |
| S-1MEF | Form s-1mef | Feb 2, 2023 | — |
| S-1/A | Amended registration statement | Jan 31, 2023 | — |
| S-1 | Registration statement | Jan 23, 2023 | — |
| S-8 | Employee stock plan registration | Aug 12, 2022 | — |
| 424B3 | Prospectus | Jun 3, 2022 | — |
| S-3 | Shelf registration | May 25, 2022 | — |
| S-8 | Employee stock plan registration | Sep 2, 2021 | — |
| 424B3 | Prospectus | Sep 2, 2021 | — |
| S-3 | Shelf registration | Aug 20, 2021 | — |
| 424B3 | Prospectus | Oct 1, 2020 | — |
| S-3/A | Primary document | Sep 11, 2020 | — |
| S-3 | Shelf registration | Aug 20, 2020 | — |
| 424B5 | Prospectus supplement | Jul 8, 2020 | — |
| 424B5 | Prospectus supplement | Mar 13, 2020 | — |
| S-8 | Employee stock plan registration | Aug 30, 2019 | — |
| 424B4 | Prospectus | Dec 7, 2018 | — |
| S-1/A | Amended registration statement | Dec 6, 2018 | — |
| S-1/A | Amended registration statement | Dec 3, 2018 | — |
| FWP | Free writing prospectus | Nov 20, 2018 | — |
| S-1/A | Amended registration statement | Nov 20, 2018 | — |
| S-1 | Registration statement | Nov 6, 2018 | — |
| S-3 | Shelf registration | May 15, 2018 | — |
| S-8 | Employee stock plan registration | Apr 3, 2018 | — |
| S-8 | Employee stock plan registration | Mar 14, 2016 | — |
| S-3 | Shelf registration | Feb 24, 2015 | — |
| POS AM | Filing | Aug 22, 2014 | — |
| S-3 | Shelf registration | Jun 2, 2014 | — |
| S-8 | Employee stock plan registration | Jun 2, 2014 | — |
| 424B3 | Prospectus | Apr 14, 2014 | — |
| 424B3 | Prospectus | Mar 24, 2014 | — |
| 424B3 | Prospectus | Mar 24, 2014 | — |
| 424B5 | Prospectus supplement | Mar 18, 2014 | — |
| 424B5 | Prospectus supplement | Mar 17, 2014 | — |
| 424B3 | Prospectus | Mar 10, 2014 | — |
| 424B3 | Prospectus | Jan 28, 2014 | — |
| 424B3 | Prospectus | Dec 30, 2013 | — |
| 424B3 | Prospectus | Dec 27, 2013 | — |
| 424B3 | Prospectus | Dec 18, 2013 | — |
| 424B3 | Prospectus | Dec 16, 2013 | — |
| 424B3 | Prospectus | Nov 26, 2013 | — |
| 424B3 | Prospectus | Nov 14, 2013 | — |
| 424B3 | Prospectus | Nov 1, 2013 | — |
| 424B3 | Prospectus | Oct 15, 2013 | — |
| S-3 | Shelf registration | Oct 4, 2013 | — |
| 424B3 | Prospectus | Sep 19, 2013 | — |
| 424B3 | Prospectus | Sep 18, 2013 | — |
| 424B3 | Prospectus | Aug 30, 2013 | — |
| 424B3 | Prospectus | Aug 29, 2013 | — |
| 424B3 | Prospectus | Aug 14, 2013 | — |
| 424B3 | Prospectus | Jul 31, 2013 | — |
| 424B3 | Prospectus | Jul 25, 2013 | — |
| 424B1 | Filing | Jul 22, 2013 | — |
| S-1/A | Amended registration statement | Jul 18, 2013 | — |
| S-1/A | Amended registration statement | Jul 17, 2013 | — |
| S-1/A | Amended registration statement | Jul 5, 2013 | — |
| FWP | Free writing prospectus | Jun 28, 2013 | — |
| S-1/A | Amended registration statement | Jun 27, 2013 | — |
| 424B3 | Prospectus | Apr 17, 2013 | — |
| S-3 | Shelf registration | Apr 12, 2013 | — |
| S-1 | Registration statement | Mar 22, 2013 | — |
| S-3 | Shelf registration | Mar 21, 2013 | — |
| 424B5 | Prospectus supplement | Feb 22, 2013 | — |
| 424B5 | Prospectus supplement | Dec 9, 2011 | — |
| S-8 | Employee stock plan registration | May 28, 2010 | — |
| 424B5 | Prospectus supplement | May 4, 2010 | — |
| 424B5 | Prospectus supplement | May 4, 2010 | — |
| S-3/A | Form s-3 amendment #1 | Apr 7, 2010 | — |
| S-3 | Shelf registration | Mar 26, 2010 | — |
| S-1 | Registration statement | Oct 14, 2008 | — |
| 424B3 | Prospectus | Jul 27, 2007 | — |
| 424B3 | Prospectus | Jun 27, 2007 | — |
| 424B3 | Prospectus | May 25, 2007 | — |
| 424B3 | Prospectus | Apr 26, 2007 | — |
| 424B3 | Prospectus | Mar 27, 2007 | — |
| 424B3 | Prospectus | Feb 26, 2007 | — |
| 424B3 | Prospectus | Jan 31, 2007 | — |
| 424B3 | Prospectus | Dec 27, 2006 | — |
| 424B3 | Prospectus | Nov 28, 2006 | — |
| 424B3 | Prospectus | Oct 25, 2006 | — |
| 424B3 | Prospectus | Sep 28, 2006 | — |
| 424B3 | Prospectus | Aug 29, 2006 | — |
| 424B3 | Prospectus | Aug 10, 2006 | — |
| POS AM | Post-effective amendment no.1 on form s-1 to form s-2 | Aug 3, 2006 | — |
| 424B3 | Prospectus | Jul 26, 2006 | — |
| 424B3 | Prospectus | Jun 27, 2006 | — |
| 424B3 | Prospectus | May 26, 2006 | — |
| 424B3 | Prospectus | Apr 26, 2006 | — |
| 424B3 | Prospectus | Mar 24, 2006 | — |
| 424B3 | Prospectus | Mar 20, 2006 | — |
| 424B3 | Prospectus | Mar 20, 2006 | — |
| 424B3 | Prospectus | Feb 24, 2006 | — |
| 424B3 | Prospectus | Jan 27, 2006 | — |
| 424B3 | Prospectus | Dec 30, 2005 | — |
| 424B3 | Prospectus | Dec 16, 2005 | — |
| 424B3 | Prospectus | Dec 16, 2005 | — |
| 424B3 | Prospectus | Nov 28, 2005 | — |
| 424B3 | Prospectus | Oct 28, 2005 | — |
| 424B3 | Prospectus | Sep 27, 2005 | — |
| 424B3 | Prospectus | Sep 27, 2005 | — |
| 424B3 | Prospectus | Aug 26, 2005 | — |
| 424B3 | Prospectus | Aug 26, 2005 | — |
| POS AM | Post effective amendment no. 1 | Aug 15, 2005 | — |
| S-2 | Form s-2 | Aug 15, 2005 | — |
| 424B3 | Prospectus | Jan 28, 2005 | — |
| S-2 | Form s-2 registration statement | Jan 14, 2005 | — |
| 424B3 | Prospectus | Sep 10, 2004 | — |
| S-2 | Form s-2 for synthetic blood international, inc. | Sep 2, 2004 | — |
| S-1 | Registration statement | Aug 31, 2001 | — |
Showing 141 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
- TENX (Nasdaq)
- Fiscal year ends
- December 31
- Incorporated in
- DE
- Headquarters
- Chapel Hill, NC
- SEC filer status
- Non-accelerated filer, Smaller reporting company
- SEC CIK
- 34956
- Former names
- OXYGEN BIOTHERAPEUTICS, INC. (until Sep 15, 2014); SYNTHETIC BLOOD INTERNATIONAL INC (until Jun 30, 2008)
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Source: SEC EDGAR filings. This is company-reported data, not investment advice.