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 |
|---|---|---|---|
| NT 10-Q | Filing | Aug 14, 2026 | Jun 30, 2026 |
| NT 10-K | Filing | Jun 30, 2026 | Mar 31, 2026 |
| NT 10-Q | Filing | Feb 18, 2026 | Dec 31, 2025 |
| 25-NSE | Delisting notice | Jan 23, 2026 | — |
| NT 10-Q | Filing | Nov 14, 2025 | Sep 30, 2025 |
| NT 10-Q | Filing | Aug 14, 2025 | Jun 30, 2025 |
| EFFECT | Filing | Jan 8, 2025 | — |
| CORRESP | Letter to the SEC | Jan 7, 2025 | — |
| CORRESP | Letter to the SEC | Dec 30, 2024 | — |
| EFFECT | Filing | Dec 26, 2024 | — |
| CORRESP | Letter to the SEC | Dec 23, 2024 | — |
| UPLOAD | Letter from the SEC | Dec 20, 2024 | — |
| CORRESP | Letter to the SEC | Dec 20, 2024 | — |
| UPLOAD | Letter from the SEC | Jun 18, 2024 | — |
| NT 10-K | Filing | Mar 31, 2022 | Dec 31, 2021 |
| EFFECT | Filing | Sep 17, 2021 | — |
| CORRESP | Letter to the SEC | Sep 14, 2021 | — |
| UPLOAD | Letter from the SEC | Aug 18, 2021 | — |
| EFFECT | Filing | Jun 23, 2021 | — |
| CORRESP | Letter to the SEC | Jun 21, 2021 | — |
| UPLOAD | Letter from the SEC | Jun 11, 2021 | — |
| EFFECT | Filing | Apr 26, 2021 | — |
| CERT | Filing | Apr 26, 2021 | — |
| 8-A12B | Filing | Apr 26, 2021 | — |
| CORRESP | Letter to the SEC | Apr 23, 2021 | — |
| CORRESP | Letter to the SEC | Apr 23, 2021 | — |
| CORRESP | Letter to the SEC | Apr 22, 2021 | — |
| CORRESP | Letter to the SEC | Apr 22, 2021 | — |
| CORRESP | Letter to the SEC | Apr 21, 2021 | — |
| CORRESP | Letter to the SEC | Apr 21, 2021 | — |
| UPLOAD | Letter from the SEC | Feb 22, 2021 | — |
| UPLOAD | Letter from the SEC | Jan 27, 2020 | — |
| CORRESP | Letter to the SEC | Jan 22, 2020 | — |
| UPLOAD | Letter from the SEC | Jan 6, 2020 | — |
| CORRESP | Letter to the SEC | Dec 23, 2019 | — |
| D/A | Filing | Dec 23, 2019 | — |
| D/A | Filing | Dec 5, 2019 | — |
| UPLOAD | Letter from the SEC | Dec 2, 2019 | — |
| CORRESP | Letter to the SEC | Nov 25, 2019 | — |
| D | Filing | Oct 29, 2019 | — |
| UPLOAD | Letter from the SEC | Oct 23, 2019 | — |
| POS EX | Form pos ex | May 16, 2017 | — |
| NT 10-K | Form nt 10-k | Apr 3, 2017 | Dec 31, 2016 |
| EFFECT | Filing | Feb 8, 2017 | — |
| CORRESP | Letter to the SEC | Feb 7, 2017 | — |
| CORRESP | Letter to the SEC | Jan 27, 2017 | — |
| UPLOAD | Letter from the SEC | Jan 13, 2017 | — |
| CORRESP | Letter to the SEC | Dec 28, 2016 | — |
| NT 10-Q | Form nt 10-q | Nov 15, 2016 | Sep 30, 2016 |
| UPLOAD | Letter from the SEC | Oct 14, 2016 | — |
| NT 10-Q | Form nt 10-q | May 17, 2016 | Mar 31, 2016 |
| DEFR14A | Filing | May 4, 2016 | — |
| D/A | Filing | Apr 22, 2016 | — |
| D/A | Filing | Apr 22, 2016 | — |
| D | Filing | Feb 23, 2016 | — |
| NT 10-Q | Filing | Feb 17, 2016 | Dec 31, 2015 |
| SC 14F1 | Filing | Jan 28, 2016 | — |
| UPLOAD | Letter from the SEC | Sep 30, 2014 | — |
| NT 10-K | Filing | Sep 29, 2014 | Jun 30, 2014 |
| CORRESP | Letter to the SEC | Sep 29, 2014 | — |
| 10-12G/A | Filing | Sep 11, 2014 | — |
| UPLOAD | Letter from the SEC | Sep 9, 2014 | — |
| 10-12G/A | Filing | Aug 18, 2014 | — |
| UPLOAD | Letter from the SEC | Aug 1, 2014 | — |
| 10-12G | Filing | Jul 2, 2014 | — |
| EFFECT | Filing | Apr 6, 2012 | — |
| 15-12G | Deregistration | Mar 30, 2012 | — |
| 25 | Filing | Nov 14, 2011 | — |
| EFFECT | Filing | Sep 30, 2011 | — |
| CORRESP | Letter to the SEC | Sep 29, 2011 | — |
| UPLOAD | Letter from the SEC | Sep 21, 2011 | — |
| CORRESP | Letter to the SEC | Aug 31, 2011 | — |
| UPLOAD | Letter from the SEC | Jul 28, 2011 | — |
| D | Filing | Jun 15, 2011 | — |
| NT 10-K | Filing | Apr 1, 2011 | Dec 31, 2010 |
| UPLOAD | Letter from the SEC | Apr 30, 2009 | — |
| CORRESP | Letter to the SEC | Apr 7, 2009 | — |
| UPLOAD | Letter from the SEC | Mar 26, 2009 | — |
| CORRESP | Letter to the SEC | Jan 21, 2009 | — |
| CORRESP | Letter to the SEC | Jan 16, 2009 | — |
| CORRESP | Letter to the SEC | Dec 24, 2008 | — |
| UPLOAD | Letter from the SEC | Dec 16, 2008 | — |
| RW | Filing | Oct 16, 2008 | — |
| CT ORDER | Filing | Jun 2, 2008 | — |
| NT 10-Q | Filing | May 16, 2008 | Mar 31, 2008 |
| 10KSB/A | Filing | Apr 29, 2008 | Dec 31, 2007 |
| 10KSB | Filing | Mar 31, 2008 | Dec 31, 2007 |
| CERTNAS | Auto-generated paper document | Jan 31, 2008 | — |
| 8-A12B | Filing | Jan 30, 2008 | — |
| EFFECT | Filing | Jan 24, 2008 | — |
| EFFECT | Filing | Dec 28, 2007 | — |
| 425 | Filing | Dec 5, 2007 | — |
| 425 | Filing | Nov 20, 2007 | — |
| 425 | Filing | Nov 15, 2007 | — |
| 10QSB | Filing | Nov 14, 2007 | Sep 30, 2007 |
| 425 | Filing | Nov 9, 2007 | — |
| 425 | Filing | Nov 5, 2007 | — |
| 425 | Filing | Oct 19, 2007 | — |
| 425 | Filing | Oct 19, 2007 | — |
| 425 | Filing | Oct 16, 2007 | — |
| 425 | Filing | Oct 15, 2007 | — |
| 425 | Filing | Oct 1, 2007 | — |
| 425 | Filing | Sep 27, 2007 | — |
| 425 | Filing | Sep 27, 2007 | — |
| 10QSB | Filing | Aug 14, 2007 | Jun 30, 2007 |
| SB-2/A | Filing | Jul 23, 2007 | — |
| SB-2 | Filing | May 16, 2007 | — |
| 10QSB | Filing | May 15, 2007 | Mar 31, 2007 |
| 10KSB | Filing | Apr 2, 2007 | Dec 31, 2006 |
| SC 14F1 | Filing | Feb 1, 2007 | — |
| 10QSB | Filing | Dec 15, 2006 | Oct 31, 2006 |
| 10KSB | Annual report | Nov 7, 2006 | Jul 31, 2006 |
| NTN 10K | Notification of late filing | Oct 31, 2006 | Mar 31, 2006 |
| 25-NSE | Delisting notice | Jul 21, 2006 | — |
| 10QSB | Quarterly report | Jun 14, 2006 | Apr 30, 2006 |
| 10QSB | Form 10-qsb | Mar 15, 2006 | Jan 31, 2006 |
| 10QSB | Quarterly report | Dec 15, 2005 | Oct 31, 2005 |
| 10KSB | Annual report | Oct 31, 2005 | Jul 31, 2005 |
| 10SB12G/A | Amendment no. 1 to form 10-sb | Jul 21, 2005 | — |
| UPLOAD | Letter from the SEC | Jun 28, 2005 | — |
| 10SB12G | Form 10sb | Jun 10, 2005 | — |
| 15-12B | Deregistration | Oct 29, 2003 | — |
| 10QSB | Filing | Jun 23, 2003 | Apr 30, 2003 |
| NT 10-Q | Nt 10-qsb | Jun 16, 2003 | Apr 30, 2003 |
| 10QSB | Filing | Mar 18, 2003 | Jan 31, 2003 |
| NT 10-Q | Filing | Mar 18, 2003 | Jan 31, 2003 |
| 10QSB | Filing | Dec 13, 2002 | Oct 31, 2002 |
| 10KSB/A | Form 10-ksba | Nov 27, 2002 | Jul 31, 2002 |
| 10KSB | Form 10ksb | Oct 29, 2002 | Jul 31, 2002 |
| 10QSB | Filing | Jun 14, 2002 | Apr 30, 2002 |
| 10QSB | Filing | Mar 18, 2002 | Jan 31, 2002 |
| 10KSB/A | Filing | Mar 11, 2002 | Jul 31, 2001 |
| 10QSB | Filing | Dec 17, 2001 | Oct 31, 2001 |
| 10KSB | Filing | Oct 29, 2001 | Jul 31, 2001 |
| 10QSB | Filing | Jun 14, 2001 | Apr 30, 2001 |
| 10QSB | Form 10qsb | Mar 15, 2001 | Jan 31, 2001 |
| 10QSB | Form 10qsb | Dec 14, 2000 | Oct 31, 2000 |
| 10KSB | Form 10ksb | Oct 26, 2000 | Jul 31, 2000 |
| 10QSB | Form 10qsb | Jun 14, 2000 | Apr 30, 2000 |
| 10QSB | Form 10qsb | Mar 15, 2000 | Jan 31, 2000 |
| 10QSB | Form 10qsb | Dec 3, 1999 | Oct 31, 1999 |
| 10KSB | Form 10ksb | Oct 28, 1999 | Jul 31, 1999 |
| 10QSB | Form 10qsb | Jun 14, 1999 | Apr 30, 1999 |
| 10QSB | Form 10qsb | Mar 15, 1999 | Jan 31, 1999 |
| 10QSB | Form 10qsb | Dec 16, 1998 | Oct 31, 1998 |
| NT 10-Q | Notification of late filing | Dec 15, 1998 | Oct 31, 1998 |
| 10KSB | Form 10ksb | Oct 30, 1998 | Jul 31, 1998 |
| NTN 10K | Notification of late filing | Oct 30, 1998 | May 11, 1998 |
| 10QSB | Form 10qsb | Jun 15, 1998 | Apr 30, 1998 |
| 10QSB | Form 10qsb | Mar 13, 1998 | Jan 31, 1998 |
| 10QSB | Form 10qsb | Dec 15, 1997 | Oct 31, 1997 |
| 10KSB | Form 10ksb | Oct 29, 1997 | Jul 31, 1997 |
| 10QSB | Form 10qsb | Jun 13, 1997 | Apr 30, 1997 |
| 10QSB | Quarterly report on form 10qsb | Mar 14, 1997 | Jan 31, 1997 |
| 8-A12B/A | Form 8-a/a | Dec 16, 1996 | — |
| SB-2/A | Filing | Dec 13, 1996 | — |
| 8-A12B | Form 8/a | Dec 10, 1996 | — |
| SB-2/A | Filing | Dec 6, 1996 | — |
| 424A | Filing | Nov 8, 1996 | — |
| SB-2 | Registration statement on form sb-2 | Oct 22, 1996 | — |
Showing 160 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)
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Source: SEC EDGAR filings. This is company-reported data, not investment advice.