Protagenic Therapeutics, Inc.\new SEC filings PTIX
Protagenic Therapeutics, Inc.\new has 705 filings in SEC EDGAR's recent list, going back to Oct 22, 1996. Its latest annual report, Form 10-K, was filed on Aug 14, 2026 for the period ended Mar 31, 2026. The latest quarterly report (Form 10-Q) was filed on Aug 19, 2026, covering the quarter ended Jun 30, 2026. The most recent current report (Form 8-K) was filed on Aug 20, 2026 (regulation fd disclosure, other events). The company's fiscal year ends on March 31.
| Form | Description | Filed | Period |
|---|---|---|---|
| 4 | Insider transaction | Aug 24, 2026 | Aug 21, 2026 |
| 4 | Insider transaction | Aug 20, 2026 | Aug 20, 2026 |
| 4 | Insider transaction | Aug 20, 2026 | Aug 19, 2026 |
| 4 | Insider transaction | Aug 12, 2026 | Aug 11, 2026 |
| 4 | Insider transaction | Aug 10, 2026 | Aug 6, 2026 |
| 4 | Insider transaction | Aug 6, 2026 | Aug 5, 2026 |
| 4 | Insider transaction | Aug 3, 2026 | Jul 30, 2026 |
| 3 | Initial insider ownership | Oct 24, 2025 | May 15, 2025 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Aug 25, 2025 | — |
| SCHEDULE 13G | Ownership over 5% (passive) | Jul 8, 2025 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Feb 14, 2025 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Nov 14, 2024 | — |
| 4 | Insider transaction | Apr 1, 2024 | Mar 25, 2024 |
| 4 | Insider transaction | Mar 29, 2024 | Mar 25, 2024 |
| 4 | Insider transaction | Mar 29, 2024 | Mar 25, 2024 |
| 4 | Insider transaction | Mar 29, 2024 | Mar 25, 2024 |
| 4 | Insider transaction | Mar 29, 2024 | Mar 25, 2024 |
| 4 | Insider transaction | Mar 29, 2024 | Mar 25, 2024 |
| 4 | Insider transaction | Mar 29, 2024 | Mar 25, 2024 |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 14, 2024 | — |
| 4 | Insider transaction | Oct 13, 2023 | Oct 12, 2023 |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 14, 2023 | — |
| 4 | Insider transaction | May 18, 2022 | May 17, 2022 |
| SC 13G | Ownership over 5% (passive) | Feb 15, 2022 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 4, 2022 | — |
| 4 | Insider transaction | Jun 3, 2021 | Jun 2, 2021 |
| 4 | Insider transaction | Jun 1, 2021 | May 26, 2021 |
| 4 | Insider transaction | Jun 1, 2021 | May 27, 2021 |
| 4 | Insider transaction | May 20, 2021 | May 18, 2021 |
| 4 | Insider transaction | May 5, 2021 | May 3, 2021 |
| 4 | Insider transaction | May 3, 2021 | Apr 29, 2021 |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 10, 2021 | — |
| 4 | Insider transaction | Jul 21, 2020 | Jul 18, 2020 |
| 4 | Insider transaction | Jul 21, 2020 | Jul 18, 2020 |
| SC 13D/A | Amended ownership over 5% (active) | Feb 28, 2020 | — |
| 4 | Insider transaction | Feb 26, 2020 | Feb 21, 2020 |
| 4 | Insider transaction | Feb 26, 2020 | Feb 21, 2020 |
| 4 | Insider transaction | Feb 26, 2020 | Feb 21, 2020 |
| 4 | Insider transaction | Feb 26, 2020 | Feb 21, 2020 |
| 4 | Insider transaction | Feb 26, 2020 | Feb 21, 2020 |
| 4 | Insider transaction | Feb 26, 2020 | Feb 21, 2020 |
| 5 | Annual insider ownership | Feb 24, 2020 | Dec 31, 2019 |
| 5 | Annual insider ownership | Feb 24, 2020 | Dec 31, 2019 |
| 4 | Insider transaction | Mar 25, 2019 | Mar 20, 2019 |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 5, 2019 | — |
| SC 13G | Ownership over 5% (passive) | Feb 2, 2018 | — |
| 4 | Insider transaction | Oct 18, 2017 | Oct 16, 2017 |
| 4 | Insider transaction | Oct 18, 2017 | Oct 16, 2017 |
| 4 | Insider transaction | Oct 18, 2017 | Oct 16, 2017 |
| 4 | Insider transaction | Oct 18, 2017 | Oct 16, 2017 |
| 4 | Insider transaction | Oct 18, 2017 | Oct 16, 2017 |
| 4 | Insider transaction | Oct 18, 2017 | Oct 16, 2017 |
| SC 13G/A | Amended ownership over 5% (passive) | Jan 30, 2017 | — |
| 4 | Insider transaction | Aug 18, 2016 | Jun 17, 2016 |
| 4 | Insider transaction | Aug 10, 2016 | Aug 8, 2016 |
| SC 13D/A | Amended ownership over 5% (active) | Jun 23, 2016 | — |
| 4 | Insider transaction | Jun 22, 2016 | Jun 17, 2016 |
| 4 | Insider transaction | Jun 21, 2016 | Jun 17, 2016 |
| 4 | Insider transaction | Jun 21, 2016 | Jun 17, 2016 |
| 4 | Insider transaction | Jun 21, 2016 | Jun 17, 2016 |
| 4 | Insider transaction | Jun 21, 2016 | Jun 17, 2016 |
| 4 | Insider transaction | Jun 21, 2016 | Jun 17, 2016 |
| 4 | Insider transaction | May 10, 2016 | Apr 15, 2016 |
| 3 | Initial insider ownership | Mar 23, 2016 | Feb 12, 2016 |
| 3 | Initial insider ownership | Feb 17, 2016 | Feb 12, 2016 |
| 3 | Initial insider ownership | Feb 17, 2016 | Feb 12, 2016 |
| 3 | Initial insider ownership | Feb 17, 2016 | Feb 12, 2016 |
| 3 | Initial insider ownership | Feb 17, 2016 | Feb 12, 2016 |
| 3 | Initial insider ownership | Feb 17, 2016 | Feb 12, 2016 |
| 3 | Initial insider ownership | Feb 17, 2016 | Feb 12, 2016 |
| SC 13D | Ownership over 5% (active) | Feb 16, 2016 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 8, 2016 | — |
| SC 13G | Ownership over 5% (passive) | Feb 12, 2015 | — |
| 3 | Initial insider ownership | Sep 12, 2014 | Sep 2, 2014 |
| 3 | Initial insider ownership | Sep 12, 2014 | Sep 2, 2014 |
| 3 | Initial insider ownership | Sep 12, 2014 | Sep 2, 2014 |
| 3 | Initial insider ownership | Sep 20, 2011 | Sep 14, 2011 |
| SC 13D/A | Amended ownership over 5% (active) | Sep 7, 2011 | — |
| SC 13D/A | Amended ownership over 5% (active) | Aug 3, 2011 | — |
| SC 13D/A | Amended ownership over 5% (active) | Jun 22, 2011 | — |
| 3 | Initial insider ownership | Jun 7, 2011 | Jun 1, 2011 |
| 4 | Insider transaction | Jun 2, 2011 | May 31, 2011 |
| SC 13G/A | Amended ownership over 5% (passive) | Jun 1, 2011 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 9, 2011 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Jan 31, 2011 | — |
| 4/A | Filing | Dec 17, 2010 | Dec 10, 2010 |
| 4 | Insider transaction | Dec 15, 2010 | Dec 10, 2010 |
| 3 | Initial insider ownership | Oct 25, 2010 | Oct 13, 2010 |
| SC 13D | Ownership over 5% (active) | Oct 25, 2010 | — |
| 4 | Insider transaction | Sep 30, 2010 | Sep 28, 2010 |
| 4 | Insider transaction | Sep 30, 2010 | Sep 28, 2010 |
| 4 | Insider transaction | Sep 30, 2010 | Sep 28, 2010 |
| 4 | Insider transaction | Sep 30, 2010 | Sep 28, 2010 |
| 4 | Insider transaction | Jul 2, 2010 | Jun 30, 2010 |
| 4 | Insider transaction | Jun 24, 2010 | Mar 31, 2010 |
| 4 | Insider transaction | Jun 7, 2010 | Jun 3, 2010 |
| SC 13G/A | Amended ownership over 5% (passive) | Apr 26, 2010 | — |
| SC 13G | Ownership over 5% (passive) | Apr 15, 2010 | — |
| 4 | Insider transaction | Mar 4, 2010 | Jan 20, 2010 |
| SC 13D/A | Amended ownership over 5% (active) | Feb 4, 2010 | — |
| 4 | Insider transaction | Feb 2, 2010 | Jan 29, 2010 |
| 4 | Insider transaction | Jan 29, 2010 | Jan 27, 2010 |
| 3 | Initial insider ownership | Jan 20, 2010 | Jan 12, 2010 |
| 4 | Insider transaction | Jan 7, 2010 | Nov 12, 2009 |
| SC 13D/A | Amended ownership over 5% (active) | Jan 7, 2010 | — |
| 3 | Initial insider ownership | Jan 6, 2010 | Dec 16, 2009 |
| 4 | Insider transaction | Sep 21, 2009 | Sep 17, 2009 |
| 4 | Insider transaction | Jun 30, 2009 | Jun 25, 2009 |
| 4 | Insider transaction | Jun 30, 2009 | Jun 25, 2009 |
| 4 | Insider transaction | Jun 30, 2009 | Jun 25, 2009 |
| 4 | Insider transaction | Jun 30, 2009 | Jun 25, 2009 |
| 4 | Insider transaction | Jun 30, 2009 | Jun 25, 2009 |
| 4 | Insider transaction | Jun 30, 2009 | Jun 25, 2009 |
| 4 | Insider transaction | Jun 30, 2009 | Jun 25, 2009 |
| 4 | Insider transaction | Jun 30, 2009 | Jun 25, 2009 |
| 3 | Initial insider ownership | May 11, 2009 | Apr 30, 2009 |
| SC 13G | Ownership over 5% (passive) | Feb 4, 2009 | — |
| SC 13D | Ownership over 5% (active) | Jan 26, 2009 | — |
| 4 | Insider transaction | Nov 26, 2008 | Nov 25, 2008 |
| 3 | Initial insider ownership | Nov 21, 2008 | Nov 11, 2008 |
| 3 | Initial insider ownership | Nov 20, 2008 | Nov 11, 2008 |
| 4 | Insider transaction | Sep 3, 2008 | Aug 29, 2008 |
| 4 | Insider transaction | Aug 7, 2008 | Feb 4, 2008 |
| 4 | Insider transaction | Aug 7, 2008 | Feb 4, 2008 |
| 4 | Insider transaction | Jul 29, 2008 | Jul 14, 2008 |
| 3 | Initial insider ownership | Jul 29, 2008 | Jul 14, 2008 |
| 4 | Insider transaction | Jun 17, 2008 | Jun 13, 2008 |
| 4 | Insider transaction | Jun 12, 2008 | Jun 10, 2008 |
| 4 | Insider transaction | Jun 9, 2008 | Jun 5, 2008 |
| 4 | Insider transaction | Jun 2, 2008 | May 30, 2008 |
| 5 | Annual insider ownership | Feb 14, 2008 | Dec 31, 2007 |
| 5 | Annual insider ownership | Feb 14, 2008 | Dec 31, 2007 |
| SC 13G | Ownership over 5% (passive) | Feb 14, 2008 | — |
| SC 13G | Ownership over 5% (passive) | Feb 14, 2008 | — |
| 5 | Annual insider ownership | Feb 13, 2008 | Dec 31, 2007 |
| 4 | Insider transaction | Feb 7, 2008 | Feb 5, 2008 |
| 4 | Insider transaction | Feb 7, 2008 | Feb 4, 2008 |
| 3 | Initial insider ownership | Feb 7, 2008 | Feb 4, 2008 |
| 3 | Initial insider ownership | Feb 7, 2008 | Feb 4, 2008 |
| 3 | Initial insider ownership | Feb 7, 2008 | Feb 4, 2008 |
| 4 | Insider transaction | Feb 7, 2008 | Feb 4, 2008 |
| 4 | Insider transaction | Feb 7, 2008 | Feb 4, 2008 |
| 3 | Initial insider ownership | Feb 7, 2008 | Feb 4, 2008 |
| 4 | Insider transaction | Jan 31, 2008 | Jan 29, 2008 |
| 4 | Insider transaction | Dec 3, 2007 | Nov 30, 2007 |
| 4 | Insider transaction | Sep 27, 2007 | Sep 25, 2007 |
| 3 | Initial insider ownership | Aug 29, 2007 | Aug 20, 2007 |
| 3 | Initial insider ownership | Aug 15, 2007 | Aug 8, 2007 |
| SC 13D | Ownership over 5% (active) | Mar 22, 2007 | — |
| 4 | Insider transaction | Mar 13, 2007 | Feb 16, 2007 |
| 4 | Insider transaction | Mar 12, 2007 | Mar 8, 2007 |
| 4 | Insider transaction | Mar 7, 2007 | Feb 16, 2007 |
| 4 | Insider transaction | Mar 7, 2007 | Feb 16, 2007 |
| 4 | Insider transaction | Mar 6, 2007 | Feb 17, 2007 |
| SC 13D/A | Amended ownership over 5% (active) | Mar 6, 2007 | — |
| 4 | Insider transaction | Mar 6, 2007 | Feb 12, 2007 |
| SC 13D | Ownership over 5% (active) | Feb 26, 2007 | — |
| 3 | Initial insider ownership | Feb 22, 2007 | Feb 12, 2007 |
| 3 | Initial insider ownership | Feb 22, 2007 | Feb 12, 2007 |
| 3 | Initial insider ownership | Feb 22, 2007 | Feb 12, 2007 |
| SC 13D | Ownership over 5% (active) | Feb 22, 2007 | — |
| SC 13D | Ownership over 5% (active) | Feb 22, 2007 | — |
| 3 | Initial insider ownership | Feb 22, 2007 | Feb 12, 2007 |
| SC 13D | Ownership over 5% (active) | Feb 22, 2007 | — |
| 3 | Initial insider ownership | Feb 22, 2007 | Feb 12, 2007 |
| 3 | Initial insider ownership | Feb 22, 2007 | Feb 12, 2007 |
| 3 | Initial insider ownership | Feb 22, 2007 | Feb 12, 2007 |
| 3 | Initial insider ownership | Nov 7, 2006 | Oct 24, 2006 |
| 3 | Initial insider ownership | Nov 7, 2006 | Oct 24, 2006 |
| SC 13D | Ownership over 5% (active) | Oct 31, 2006 | — |
| 4 | Insider transaction | Oct 27, 2006 | Oct 24, 2006 |
| 4 | Insider transaction | Oct 27, 2006 | Oct 24, 2006 |
| 4 | Insider transaction | Oct 26, 2006 | Oct 24, 2006 |
| SC 13D/A | Amended ownership over 5% (active) | Feb 13, 2006 | — |
| 3 | Initial insider ownership | Aug 9, 2005 | Aug 9, 2005 |
| 3 | Initial insider ownership | Aug 9, 2005 | Aug 9, 2005 |
| 3 | Initial insider ownership | Aug 9, 2005 | Aug 9, 2005 |
| SC 13D | Ownership over 5% (active) | May 23, 2005 | — |
| SC 13G | Ownership over 5% (passive) | Feb 1, 2005 | — |
| SC 13G | Ownership over 5% (passive) | Feb 18, 2004 | — |
| SC 13G | Ownership over 5% (passive) | Feb 9, 2004 | — |
| SC 13G | Ownership over 5% (passive) | Feb 13, 2003 | — |
| SC 13D/A | Amended ownership over 5% (active) | Jul 18, 2002 | — |
| SC 13D/A | Amended ownership over 5% (active) | Jul 18, 2002 | — |
| SC 13G | Ownership over 5% (passive) | Feb 14, 2002 | — |
| SC 13G | Ownership over 5% (passive) | Feb 15, 2001 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 10, 2000 | — |
| SC 13D/A | Amended ownership over 5% (active) | Jan 13, 2000 | — |
| SC 13G | Ownership over 5% (passive) | Feb 9, 1999 | — |
| SC 13D/A | Amended ownership over 5% (active) | Jan 21, 1999 | — |
| SC 13D/A | Amended ownership over 5% (active) | Oct 9, 1998 | — |
| SC 13D | Ownership over 5% (active) | Jan 30, 1998 | — |
| SC 13D/A | Amended ownership over 5% (active) | Dec 8, 1997 | — |
| SC 13D/A | Amended ownership over 5% (active) | Jul 7, 1997 | — |
| SC 13D/A | Amended ownership over 5% (active) | Jul 7, 1997 | — |
| SC 13D | Ownership over 5% (active) | Jan 28, 1997 | — |
| SC 13D | Ownership over 5% (active) | Jan 28, 1997 | — |
Showing 197 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
- PTIX (OTC)
- Fiscal year ends
- March 31
- Incorporated in
- DE
- Headquarters
- New York, NY
- SEC filer status
- Non-accelerated filer, Smaller reporting company
- SEC CIK
- 1022899
- Former names
- Atrinsic, Inc. (until Jun 20, 2016); NEW MOTION, INC. (until Jun 30, 2009); MPLC, Inc. (until Apr 2, 2007); MILLBROOK PRESS INC (until May 23, 2005)
Other Pharmaceutical Preparations companies
- ELI LILLY & Co LLY
- Johnson & Johnson JNJ
- AbbVie Inc. ABBV
- Merck & Co., Inc. MRK
- Novartis AG NVS
- Astrazeneca PLC AZN
- Abbott Laboratories ABT
- Novo Nordisk A S NVO
Source: SEC EDGAR filings. This is company-reported data, not investment advice.