Northwest Biotherapeutics Inc SEC filings NWBO
Northwest Biotherapeutics Inc has 803 filings in SEC EDGAR's recent list, going back to Aug 13, 2001. Its latest annual report, Form 10-K, was filed on Apr 15, 2026 for the period ended Dec 31, 2025. The latest quarterly report (Form 10-Q) was filed on Aug 14, 2026, covering the quarter ended Jun 30, 2026. The most recent current report (Form 8-K) was filed on Oct 30, 2026 (material agreement, new debt). The company's fiscal year ends on December 31.
| Form | Description | Filed | Period |
|---|---|---|---|
| EFFECT | Filing | Apr 20, 2026 | — |
| NT 10-K | Filing | Mar 31, 2026 | Dec 31, 2025 |
| EFFECT | Filing | Nov 25, 2025 | — |
| CORRESP | Letter to the SEC | Nov 24, 2025 | — |
| NT 10-K | Filing | Mar 1, 2024 | Dec 31, 2023 |
| EFFECT | Filing | Oct 25, 2022 | — |
| CORRESP | Letter to the SEC | Oct 24, 2022 | — |
| UPLOAD | Letter from the SEC | Oct 21, 2022 | — |
| CORRESP | Letter to the SEC | Oct 21, 2022 | — |
| UPLOAD | Letter from the SEC | Jul 14, 2022 | — |
| UPLOAD | Letter from the SEC | Jun 28, 2022 | — |
| NT 10-Q | Filing | Nov 10, 2020 | Sep 30, 2020 |
| D | Filing | Sep 14, 2020 | — |
| NT 10-Q | Filing | May 12, 2020 | Mar 31, 2020 |
| EFFECT | Filing | Oct 31, 2019 | — |
| CORRESP | Letter to the SEC | Oct 29, 2019 | — |
| UPLOAD | Letter from the SEC | Oct 28, 2019 | — |
| NT 10-K | Filing | Mar 19, 2019 | Dec 31, 2018 |
| NT 10-Q | Filing | Nov 15, 2018 | Sep 30, 2018 |
| NT 10-Q | Filing | May 16, 2018 | Mar 31, 2018 |
| DEFR14A | Filing | Apr 12, 2018 | — |
| UPLOAD | Letter from the SEC | Apr 6, 2018 | — |
| CORRESP | Letter to the SEC | Apr 4, 2018 | — |
| PRER14A | Preliminary proxy statement | Apr 4, 2018 | — |
| NT 10-K | Filing | Apr 3, 2018 | Dec 31, 2017 |
| UPLOAD | Letter from the SEC | Apr 2, 2018 | — |
| D | Filing | Jan 10, 2018 | — |
| NT 10-Q | Filing | Nov 14, 2017 | Sep 30, 2017 |
| NT 10-Q | Filing | Aug 15, 2017 | Jun 30, 2017 |
| D | Filing | May 17, 2017 | — |
| NT 10-K | Filing | Mar 31, 2017 | Dec 31, 2016 |
| 25 | Form 25 | Dec 19, 2016 | — |
| NT 10-Q | Filing | Nov 9, 2016 | Sep 30, 2016 |
| EFFECT | Filing | Oct 18, 2016 | — |
| CORRESP | Letter to the SEC | Oct 17, 2016 | — |
| CORRESP | Letter to the SEC | Oct 11, 2016 | — |
| UPLOAD | Letter from the SEC | Oct 6, 2016 | — |
| NT 10-Q | Filing | May 10, 2016 | Mar 31, 2016 |
| NT 10-K | Filing | Mar 15, 2016 | Dec 31, 2015 |
| CT ORDER | Filing | Mar 15, 2016 | — |
| D | Filing | Mar 15, 2016 | — |
| EFFECT | Filing | Dec 22, 2015 | — |
| CORRESP | Letter to the SEC | Dec 21, 2015 | — |
| CORRESP | Letter to the SEC | Dec 14, 2015 | — |
| UPLOAD | Letter from the SEC | Dec 3, 2015 | — |
| NT 10-K | Filing | Mar 16, 2015 | Dec 31, 2014 |
| UPLOAD | Letter from the SEC | Dec 31, 2014 | — |
| CORRESP | Letter to the SEC | Dec 19, 2014 | — |
| CORRESP | Letter to the SEC | Dec 12, 2014 | — |
| CORRESP | Letter to the SEC | Dec 1, 2014 | — |
| NT 10-Q | Form 12b-25 | Nov 14, 2014 | Sep 30, 2014 |
| UPLOAD | Letter from the SEC | Nov 14, 2014 | — |
| CORRESP | Letter to the SEC | Oct 20, 2014 | — |
| UPLOAD | Letter from the SEC | Sep 29, 2014 | — |
| NT 10-Q | Filing | Aug 14, 2014 | Jun 30, 2014 |
| NT 10-K | Notification of late filing | Mar 31, 2014 | Dec 31, 2013 |
| NT 10-Q | Notification of late filing | Nov 14, 2013 | Sep 30, 2013 |
| NT 10-K | Notification of late filing | Apr 1, 2013 | Dec 31, 2012 |
| EFFECT | Filing | Feb 13, 2013 | — |
| EFFECT | Filing | Feb 5, 2013 | — |
| CORRESP | Letter to the SEC | Feb 4, 2013 | — |
| UPLOAD | Letter from the SEC | Jan 11, 2013 | — |
| EFFECT | Filing | Dec 6, 2012 | — |
| CERTNAS | Auto-generated paper document | Dec 6, 2012 | — |
| 8-A12B/A | Amendment to form 8-a12b | Dec 4, 2012 | — |
| CERTNAS | Auto-generated paper document | Nov 15, 2012 | — |
| 8-A12B | Form 8-a | Nov 14, 2012 | — |
| 8-A12G/A | Amendment to form 8-a | Nov 14, 2012 | — |
| UPLOAD | Letter from the SEC | Aug 14, 2012 | — |
| CORRESP | Letter to the SEC | Aug 13, 2012 | — |
| UPLOAD | Letter from the SEC | Aug 9, 2012 | — |
| CT ORDER | Filing | Jul 26, 2012 | — |
| NT 10-Q | Notification of late filing | May 15, 2012 | Mar 31, 2012 |
| NT 10-K | Notice under rule 12b25 | Mar 30, 2012 | Dec 31, 2011 |
| EFFECT | Filing | Feb 8, 2012 | — |
| UPLOAD | Letter from the SEC | Feb 8, 2012 | — |
| CORRESP | Letter to the SEC | Feb 6, 2012 | — |
| CORRESP | Letter to the SEC | Feb 3, 2012 | — |
| RW | Registration withdrawal request | Jan 10, 2012 | — |
| UPLOAD | Letter from the SEC | Jan 10, 2012 | — |
| PRER14C | Preliminary revised information statments form prer14c | Jan 5, 2012 | — |
| CORRESP | Letter to the SEC | Dec 29, 2011 | — |
| UPLOAD | Letter from the SEC | Dec 22, 2011 | — |
| NT 10-Q | Filing | May 16, 2011 | Mar 31, 2011 |
| UPLOAD | Letter from the SEC | May 12, 2011 | — |
| CORRESP | Letter to the SEC | Apr 13, 2011 | — |
| NT 10-K | Filing | Mar 31, 2011 | Dec 31, 2010 |
| UPLOAD | Letter from the SEC | Mar 16, 2011 | — |
| CORRESP | Letter to the SEC | Mar 1, 2011 | — |
| UPLOAD | Letter from the SEC | Feb 4, 2011 | — |
| CORRESP | Letter to the SEC | Jan 13, 2011 | — |
| UPLOAD | Letter from the SEC | Dec 16, 2010 | — |
| D/A | Filing | Dec 9, 2010 | — |
| D | Filing | Dec 7, 2010 | — |
| NT 10-Q | Filing | Nov 15, 2010 | Sep 30, 2010 |
| NT 10-Q | Filing | Aug 17, 2010 | Jun 30, 2010 |
| NT 10-Q | Filing | May 17, 2010 | Mar 31, 2010 |
| NT 10-K | Filing | Mar 31, 2010 | Dec 31, 2009 |
| NT 10-Q | Filing | Nov 17, 2009 | Sep 30, 2009 |
| UPLOAD | Letter from the SEC | Jul 29, 2009 | — |
| PRER14A | Filing | Jul 29, 2009 | — |
| CORRESP | Letter to the SEC | Jul 28, 2009 | — |
| UPLOAD | Letter from the SEC | Jul 28, 2009 | — |
| PRER14A | Filing | Jul 21, 2009 | — |
| UPLOAD | Letter from the SEC | Jul 20, 2009 | — |
| NT 10-Q | Filing | May 15, 2009 | Mar 31, 2009 |
| NT 10-K | Filing | Apr 1, 2009 | Dec 31, 2008 |
| NT 10-Q | Filing | Nov 14, 2008 | Sep 30, 2008 |
| NT 10-Q | Form 12b-25 | Aug 14, 2008 | Jun 30, 2008 |
| EFFECT | Filing | May 7, 2008 | — |
| NT 10-K | Notification of late filing | Apr 1, 2008 | Dec 31, 2007 |
| EFFECT | Filing | Feb 8, 2008 | — |
| EFFECT | Filing | Feb 8, 2008 | — |
| UPLOAD | Letter from the SEC | Dec 13, 2007 | — |
| UPLOAD | Letter from the SEC | Nov 27, 2007 | — |
| NT 10-Q | Form 12b-25 | Aug 13, 2007 | Jun 30, 2007 |
| NT 10-K | Notification of late filing | Apr 3, 2007 | Dec 31, 2006 |
| EFFECT | Filing | Oct 11, 2006 | — |
| CORRESP | Letter to the SEC | Oct 10, 2006 | — |
| UPLOAD | Letter from the SEC | Sep 14, 2006 | — |
| UPLOAD | Letter from the SEC | May 25, 2006 | — |
| REGDEX | Auto-generated paper document | Apr 17, 2006 | — |
| NT 10-K | Form 12b-25 | Apr 3, 2006 | Dec 31, 2005 |
| UPLOAD | Letter from the SEC | Jan 19, 2006 | — |
| CORRESP | Letter to the SEC | Sep 2, 2005 | — |
| NT 10-K | Form 12b-25 | Mar 31, 2005 | Dec 31, 2004 |
| REGDEX | Auto-generated paper document | Feb 9, 2005 | — |
| NT 10-K | Form 12b-25 | Mar 31, 2004 | Dec 31, 2003 |
| REGDEX | Auto-generated paper document | Nov 26, 2003 | — |
| 8-A12G | Form 8-a12g | Jul 8, 2002 | — |
| 10-K405 | Form 10-k405 | Apr 1, 2002 | Dec 31, 2001 |
| 8-A12G | Form 8-a12g | Dec 7, 2001 | — |
Showing 132 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
- NWBO (OTC)
- Fiscal year ends
- December 31
- Incorporated in
- DE
- Headquarters
- Bethesda, MD
- SEC filer status
- Non-accelerated filer, Smaller reporting company
- SEC CIK
- 1072379
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Source: SEC EDGAR filings. This is company-reported data, not investment advice.