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
8-K Current report
Results of operations
 Nov 5, 2026 Nov 5, 2026
8-K Current report
Other events
 Oct 8, 2026 Oct 8, 2026
8-K Current report
Regulation FD disclosure
 Sep 9, 2026 Sep 9, 2026
8-K Current report
Other events
 Aug 10, 2026 Aug 10, 2026
8-K Current report
Results of operations
 Jul 31, 2026 Jul 31, 2026
8-K Current report
Other events
 Jul 2, 2026 Jul 2, 2026
8-K Current report
Material agreement
 Jun 30, 2026 Jun 29, 2026
8-K Current report
Officer or director change, Other events
 Jun 29, 2026 Jun 26, 2026
8-K Current report
Shareholder vote results
 Jun 4, 2026 Jun 2, 2026
8-K Current report
Results of operations
 May 12, 2026 May 12, 2026
8-K Current report
Officer or director change, Other events
 Apr 22, 2026 Apr 22, 2026
8-K Current report
Results of operations
 Mar 10, 2026 Mar 10, 2026
8-K Current report
Officer or director change
 Jan 9, 2026 Jan 6, 2026
8-K Current report
Other events
 Dec 17, 2025 Dec 17, 2025
8-K Current report
Results of operations
 Nov 12, 2025 Nov 12, 2025
8-K Current report
Other events
 Sep 16, 2025 Sep 16, 2025
8-K Current report
Material agreement
 Sep 9, 2025 Sep 3, 2025
8-K Current report
Results of operations
 Aug 13, 2025 Aug 13, 2025
8-K Current report
Bylaw or fiscal year change, Shareholder vote results
 Jun 17, 2025 Jun 11, 2025
8-K Current report
Results of operations
 May 14, 2025 May 14, 2025
8-K Current report
Results of operations
 Mar 25, 2025 Mar 25, 2025
8-K Current report
Material agreement, Unregistered share sale, Other events
 Mar 6, 2025 Mar 4, 2025
8-K Current report
Officer or director change
 Dec 4, 2024 Dec 2, 2024
8-K Current report
Results of operations
 Nov 13, 2024 Nov 13, 2024
8-K Current report
Officer or director change, Shareholder vote results
 Oct 30, 2024 Oct 25, 2024
8-K Current report
Results of operations
 Aug 13, 2024 Aug 13, 2024
8-K Current report
Regulation FD disclosure
 Aug 12, 2024 Aug 12, 2024
8-K Current report Aug 6, 2024 Aug 6, 2024
8-K Current report
Officer or director change, Shareholder vote results
 Jun 13, 2024 Jun 7, 2024
8-K Current report
Results of operations
 May 14, 2024 May 14, 2024
8-K Current report
Results of operations
 Mar 28, 2024 Mar 28, 2024
8-K Current report
Other events
 Feb 23, 2024 Feb 22, 2024
8-K Current report
Material agreement
 Feb 20, 2024 Feb 19, 2024
8-K Current report
Material agreement, Other events
 Feb 12, 2024 Feb 8, 2024
8-K Current report
Other events
 Feb 8, 2024 Feb 7, 2024
8-K Current report
Other events
 Feb 6, 2024 Feb 6, 2024
8-K Current report
Other events
 Jan 19, 2024 Jan 18, 2024
8-K Current report
Listing notice, Officer or director change
 Jan 12, 2024 Jan 9, 2024
8-K Current report
Change to shareholder rights, Bylaw or fiscal year change, Other events
 Jan 5, 2024 Dec 29, 2023
8-K Current report
Shareholder vote results
 Dec 1, 2023 Nov 30, 2023
8-K Current report
Other events
 Nov 13, 2023 Nov 13, 2023
8-K Current report
Listing notice
 Sep 29, 2023 Sep 28, 2023
8-K Current report
Bylaw or fiscal year change
 Aug 15, 2023 Aug 9, 2023
8-K Current report
Other events
 Jul 19, 2023 Jul 19, 2023
8-K Current report
Shareholder vote results
 Jun 13, 2023 Jun 9, 2023
8-K Current report
Other events
 May 31, 2023 May 31, 2023
8-K Current report
Other events
 Apr 13, 2023 Apr 12, 2023
8-K Current report
Listing notice
 Mar 30, 2023 Mar 29, 2023
8-K Current report
Other events
 Mar 22, 2023 Mar 22, 2023
8-K Current report
Agreement ended
 Feb 10, 2023 Feb 7, 2023
8-K Current report
Material agreement, Other events
 Feb 7, 2023 Feb 3, 2023
8-K Current report
Other events
 Feb 1, 2023 Feb 1, 2023
8-K Current report
Other events
 Jan 20, 2023 Jan 20, 2023
8-K Current report
Change to shareholder rights, Bylaw or fiscal year change, Other events
 Jan 4, 2023 Jan 4, 2023
8-K Current report
Other events
 Oct 11, 2022 Oct 10, 2022
8-K Current report
Other events
 Sep 20, 2022 Sep 20, 2022
8-K Current report
Other events
 Sep 15, 2022 Sep 15, 2022
8-K Current report
Listing notice
 Aug 18, 2022 Aug 17, 2022
8-K Current report
Material agreement, Officer or director change
 Jun 16, 2022 Jun 10, 2022
8-K Current report
Officer or director change, Shareholder vote results
 Jun 10, 2022 Jun 9, 2022
8-K Current report
Other events
 May 23, 2022 May 23, 2022
8-K Current report
Material agreement, Unregistered share sale, Other events
 May 20, 2022 May 17, 2022
8-K Current report
Other events
 Mar 24, 2022 Mar 24, 2022
8-K Current report
Listing notice
 Feb 18, 2022 Feb 17, 2022
8-K Current report
Officer or director change, Other events
 Jan 31, 2022 Jan 26, 2022
8-K Current report
Material agreement
 Jan 28, 2022 Jan 25, 2022
8-K Current report
Other events
 Jan 24, 2022 Jan 24, 2022
8-K Current report
Other events
 Jan 12, 2022 Jan 12, 2022
8-K Current report
Other events
 Jan 5, 2022 Jan 4, 2022
8-K Current report
Officer or director change
 Oct 14, 2021 Oct 8, 2021
8-K Current report
Listing notice, Officer or director change
 Sep 14, 2021 Sep 8, 2021
8-K Current report
Material agreement, Unregistered share sale, Officer or director change, Regulation FD disclosure
 Jul 8, 2021 Jul 6, 2021
8-K Current report
Shareholder vote results, Other events
 Jun 11, 2021 Jun 10, 2021
8-K Current report
Agreement ended
 Jun 1, 2021 May 28, 2021
8-K Current report
Officer or director change
 Apr 7, 2021 Apr 2, 2021
8-K/A Amended current report Mar 30, 2021 Jan 15, 2021
8-K Current report
Officer or director change
 Mar 2, 2021 Feb 25, 2021
8-K Current report
Material agreement, Acquisition or sale of assets, Unregistered share sale, Officer or director change, Regulation FD disclosure
 Jan 19, 2021 Jan 15, 2021
8-K Current report
Regulation FD disclosure
 Nov 18, 2020 Nov 18, 2020
8-K Current report
Material agreement, Other events
 Oct 15, 2020 Oct 9, 2020
8-K Current report
Officer or director change
 Jul 20, 2020 Jul 20, 2020
8-K Current report
Material agreement, Unregistered share sale, Regulation FD disclosure
 Jul 8, 2020 Jul 6, 2020
8-K Current report
Shareholder vote results
 Jun 18, 2020 Jun 18, 2020
8-K Current report
Listing notice
 Jun 2, 2020 Jun 2, 2020
8-K Current report
Other events
 Jun 2, 2020 May 29, 2020
8-K Current report
New debt
 May 6, 2020 Apr 30, 2020
8-K Current report
Listing notice
 Apr 29, 2020 Apr 24, 2020
8-K Current report
Material agreement, Unregistered share sale, Regulation FD disclosure
 Mar 13, 2020 Mar 11, 2020
8-K Current report
Other events
 Jan 13, 2020 Jan 13, 2020
8-K/A Amended current report
Shareholder vote results
 Nov 8, 2019 Jun 13, 2019
8-K Current report
Shareholder vote results
 Jun 14, 2019 Jun 13, 2019
8-K Current report
Material agreement, Unregistered share sale, Change to shareholder rights, Bylaw or fiscal year change, Other events
 Dec 11, 2018 Dec 7, 2018
8-K Current report
Shareholder vote results
 Jun 13, 2018 Jun 13, 2018
8-K Current report
Officer or director change
 Jun 5, 2018 Jun 1, 2018
8-K Current report
Other events
 Mar 14, 2018 Mar 14, 2018
8-K Current report
Bylaw or fiscal year change, Other events
 Feb 23, 2018 Feb 22, 2018
8-K Current report
Shareholder vote results
 Feb 15, 2018 Feb 15, 2018
8-K Current report
Listing notice
 Sep 12, 2017 Sep 12, 2017
8-K Current report
Other events
 Jul 28, 2017 Jul 28, 2017
8-K Current report
Shareholder vote results
 Jun 15, 2017 Jun 14, 2017
8-K Current report
Officer or director change
 Apr 7, 2017 Apr 3, 2017
8-K Current report
Listing notice
 Mar 17, 2017 Mar 15, 2017
8-K Current report
Other events
 Jan 31, 2017 Jan 31, 2017
8-K Current report
Shareholder vote results
 Jun 16, 2016 Jun 16, 2016
8-K Current report
Results of operations
 May 19, 2016 May 19, 2016
8-K Current report
Shareholder vote results
 Sep 16, 2015 Sep 15, 2015
8-K Current report
Officer or director change
 Jun 19, 2015 Jun 17, 2015
8-K Current report
Bylaw or fiscal year change, Other events
 Apr 15, 2015 Apr 9, 2015
8-K Current report
Bylaw or fiscal year change
 Feb 27, 2015 Feb 23, 2015
8-K Current report
Bylaw or fiscal year change
 Dec 24, 2014 Dec 18, 2014
8-K Current report
Results of operations
 Jul 30, 2014 Jul 29, 2014
8-K Current report
Officer or director change
 Apr 4, 2014 Apr 3, 2014
8-K Current report Mar 21, 2014 Mar 18, 2014
8-K Current report
Other events
 Mar 6, 2014 Feb 28, 2014
8-K/A Amended current report Jan 22, 2014 Nov 13, 2013
8-K Current report
Officer or director change
 Dec 23, 2013 Dec 19, 2013
8-K/A Amended current report
Shareholder vote results
 Dec 20, 2013 Dec 4, 2013
8-K Current report
Shareholder vote results
 Dec 9, 2013 Dec 4, 2013
8-K Current report
Acquisition or sale of assets, Unregistered share sale, Officer or director change
 Nov 19, 2013 Nov 13, 2013
8-K Current report
Other events
 Nov 8, 2013 Nov 4, 2013
8-K Current report
Material agreement, Unregistered share sale
 Oct 25, 2013 Oct 21, 2013
8-K Current report
Material agreement, Agreement ended, Unregistered share sale
 Aug 26, 2013 Aug 22, 2013
8-K Current report
Material agreement, Unregistered share sale
 Aug 13, 2013 Jun 30, 2012
8-K/A Amended current report
Other events
 Jul 31, 2013 Jul 21, 2013
8-K Current report
Material agreement, Other events
 Jul 25, 2013 Jul 21, 2013
8-K Current report
Results of operations
 Jun 27, 2013 Jun 27, 2013
8-K Current report
Other events
 May 16, 2013 May 15, 2013
8-K Current report
Bylaw or fiscal year change, Other events
 May 15, 2013 May 10, 2013
8-K Current report
Shareholder vote results
 May 1, 2013 Apr 26, 2013
8-K Current report
Listing notice
 Apr 5, 2013 Apr 4, 2013
8-K Current report
Listing notice
 Mar 21, 2013 Mar 20, 2013
8-K Current report
Results of operations
 Mar 19, 2013 Mar 18, 2013
8-K/A Amended current report Feb 27, 2013 Feb 21, 2013
8-K Current report
Material agreement, Unregistered share sale, Other events
 Feb 25, 2013 Feb 21, 2013
8-K Current report
Other events
 Feb 20, 2013 Feb 20, 2013
8-K Current report
Material agreement, Other events
 Feb 11, 2013 Feb 5, 2013
8-K Current report
Results of operations
 Dec 17, 2012 Dec 17, 2012
8-K Current report
Listing notice
 Oct 5, 2012 Oct 3, 2012
8-K Current report
Listing notice
 Sep 21, 2012 Sep 20, 2012
8-K Current report
Results of operations
 Sep 20, 2012 Sep 19, 2012
8-K Current report
Shareholder vote results
 Sep 7, 2012 Aug 31, 2012
8-K Current report
Other events
 Aug 28, 2012 Aug 28, 2012
8-K Current report
Results of operations
 Jul 25, 2012 Jul 24, 2012
8-K Current report
Material agreement, Other events
 Jun 15, 2012 Jun 14, 2012
8-K Current report
Results of operations
 Mar 16, 2012 Mar 15, 2012
8-K Current report
Agreement ended
 Mar 1, 2012 Feb 27, 2012
8-K Current report
Other events
 Jan 11, 2012 Jan 11, 2012
8-K Current report
Results of operations
 Dec 19, 2011 Dec 16, 2011
8-K/A Amended current report Dec 13, 2011 Dec 8, 2011
8-K Current report
Material agreement, Other events
 Dec 9, 2011 Dec 8, 2011
8-K Current report
Material agreement, Agreement ended, Unregistered share sale
 Nov 16, 2011 Aug 30, 2011
8-K Current report
Other events
 Oct 28, 2011 Oct 27, 2011
8-K Current report
Listing notice
 Oct 14, 2011 Oct 12, 2011
8-K Current report
Officer or director change, Shareholder vote results
 Oct 3, 2011 Sep 29, 2011
8-K Current report
Results of operations
 Sep 20, 2011 Sep 19, 2011
8-K/A Amended current report
Officer or director change
 Aug 26, 2011 Aug 24, 2011
8-K Current report
Officer or director change, Other events
 Aug 24, 2011 Aug 24, 2011
8-K Current report
Results of operations
 Jul 15, 2011 Jul 14, 2011
8-K/A Amended current report
Material agreement, New debt, Unregistered share sale, Other events
 Jul 1, 2011 Jun 16, 2011
8-K Current report
Material agreement, New debt, Unregistered share sale, Other events
 Jun 22, 2011 Jun 16, 2011
8-K Current report
Officer or director change
 May 19, 2011 May 13, 2011
8-K Current report
Officer or director change
 Mar 31, 2011 Mar 28, 2011
8-K Current report
Material agreement, New debt
 Dec 30, 2010 Dec 29, 2010
8-K Current report
Material agreement
 Dec 20, 2010 Dec 15, 2010
8-K Current report
Officer or director change
 Dec 1, 2010 Nov 30, 2010
8-K Current report
Material agreement, New debt
 Oct 13, 2010 Oct 12, 2010
8-K Current report
Shareholder vote results
 Sep 27, 2010 Sep 24, 2010
8-K Current report
Results of operations
 Sep 10, 2010 Sep 9, 2010
8-K Current report
Other events
 Jul 30, 2010 Jul 30, 2010
8-K Current report
Other events
 Jul 14, 2010 Jul 14, 2010
8-K Current report
Other events
 May 17, 2010 May 17, 2010
8-K Current report
Other events
 May 13, 2010 May 12, 2010
8-K/A Amended current report May 7, 2010 May 4, 2010
8-K Current report
Material agreement, Other events
 May 4, 2010 May 4, 2010
8-K Current report
Officer or director change
 Apr 30, 2010 Apr 28, 2010
8-K Current report
Material agreement, Other events
 Apr 28, 2010 Apr 23, 2010
8-K Current report
Regulation FD disclosure
 Mar 26, 2010 Mar 26, 2010
8-K Current report
Regulation FD disclosure
 Mar 8, 2010 Mar 8, 2010
8-K Current report
Officer or director change
 Mar 4, 2010 Mar 1, 2010
8-K Current report
Regulation FD disclosure
 Feb 19, 2010 Feb 19, 2010
8-K Current report
Officer or director change
 Dec 14, 2009 Dec 11, 2009
8-K Current report
Other events
 Dec 1, 2009 Nov 20, 2009
8-K Current report
Unregistered share sale, Bylaw or fiscal year change
 Nov 13, 2009 Nov 9, 2009
8-K Current report
Officer or director change
 Oct 29, 2009 Oct 26, 2009
8-K Current report
Material agreement
 Sep 2, 2009 Sep 1, 2009
8-K Current report
Unregistered share sale, Officer or director change
 Aug 28, 2009 Aug 24, 2009
8-K Current report
Unregistered share sale, Officer or director change
 Aug 17, 2009 Aug 13, 2009
8-K Current report
Results of operations
 Jul 29, 2009 Jul 29, 2009
8-K Current report
Unregistered share sale
 Jul 21, 2009 Jul 20, 2009
8-K Current report
Material agreement, Unregistered share sale, Other events
 Jun 8, 2009 Jun 8, 2009
8-K Current report
Unregistered share sale, Officer or director change
 Mar 24, 2009 Mar 17, 2009
8-K Current report
Unregistered share sale, Officer or director change
 Feb 3, 2009 Jan 28, 2009
8-K Current report
Auditor change
 Jan 28, 2009 Jan 23, 2009
8-K/A Amended current report
Auditor change
 Jan 27, 2009 Jan 8, 2009
8-K Current report
Auditor change
 Jan 14, 2009 Jan 8, 2009
8-K Current report
Regulation FD disclosure
 Dec 2, 2008 Dec 2, 2008
8-K Current report
Results of operations, Other events
 Nov 12, 2008 Nov 12, 2008
8-K/A Amended current report
Unregistered share sale, Officer or director change
 Oct 3, 2008 Sep 22, 2008
8-K Current report
Unregistered share sale, Officer or director change
 Sep 25, 2008 Sep 22, 2008
8-K Current report
Results of operations, Unregistered share sale, Officer or director change
 Jul 30, 2008 Jun 9, 2008

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
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.