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 |
|---|---|---|---|
| 8-K |
Current report
Material agreement, New debt
|
Oct 30, 2026 | Oct 26, 2026 |
| 10-Q | Quarterly report | Aug 14, 2026 | Jun 30, 2026 |
| 8-K |
Current report
Material agreement, New debt
|
Jul 31, 2026 | Jul 29, 2026 |
| 424B5 | Prospectus supplement | Jul 31, 2026 | — |
| 8-K |
Current report
Regulation FD disclosure
|
Jul 20, 2026 | Jul 17, 2026 |
| 10-Q | Quarterly report | May 15, 2026 | Mar 31, 2026 |
| EFFECT | Filing | Apr 20, 2026 | — |
| POS AM | Filing | Apr 16, 2026 | — |
| 10-K | Annual report | Apr 15, 2026 | Dec 31, 2025 |
| 8-K |
Current report
Acquisition or sale of assets
|
Apr 7, 2026 | Oct 24, 2025 |
| NT 10-K | Filing | Mar 31, 2026 | Dec 31, 2025 |
| 8-K |
Current report
Other events
|
Jan 15, 2026 | Jan 15, 2026 |
| 8-K |
Current report
Bylaw or fiscal year change, Shareholder vote results
|
Jan 2, 2026 | Dec 29, 2025 |
| DEF 14A | Proxy statement | Nov 28, 2025 | Dec 29, 2025 |
| EFFECT | Filing | Nov 25, 2025 | — |
| 424B5 | Prospectus supplement | Nov 25, 2025 | — |
| CORRESP | Letter to the SEC | Nov 24, 2025 | — |
| 8-K |
Current report
Material agreement, New debt
|
Nov 20, 2025 | Nov 14, 2025 |
| PRE 14A | Preliminary proxy statement | Nov 19, 2025 | Dec 29, 2025 |
| 10-Q | Quarterly report | Nov 14, 2025 | Sep 30, 2025 |
| 8-K |
Current report
Material agreement, New debt
|
Oct 31, 2025 | Oct 27, 2025 |
| 8-K |
Current report
Material agreement
|
Oct 30, 2025 | Oct 24, 2025 |
| 8-K |
Current report
Other events
|
Oct 24, 2025 | Oct 23, 2025 |
| S-3 | Shelf registration | Oct 24, 2025 | — |
| 8-K |
Current report
Other events
|
Oct 14, 2025 | Oct 9, 2025 |
| 10-Q | Quarterly report | Aug 14, 2025 | Jun 30, 2025 |
| 424B5 | Prospectus supplement | Jul 1, 2025 | — |
| 10-Q | Quarterly report | May 15, 2025 | Mar 31, 2025 |
| 10-K | Annual report | Mar 31, 2025 | Dec 31, 2024 |
| 424B5 | Prospectus supplement | Dec 26, 2024 | — |
| 8-K |
Current report
Material agreement, New debt
|
Dec 26, 2024 | Dec 19, 2024 |
| 10-Q | Quarterly report | Nov 12, 2024 | Sep 30, 2024 |
| 8-K |
Current report
Material agreement, New debt
|
Nov 1, 2024 | Oct 31, 2024 |
| 10-Q | Quarterly report | Aug 9, 2024 | Jun 30, 2024 |
| 8-K |
Current report
Regulation FD disclosure
|
Aug 2, 2024 | Aug 2, 2024 |
| 8-K |
Current report
Shareholder vote results
|
Jul 3, 2024 | Jun 29, 2024 |
| DEFA14A | Additional proxy material | Jun 25, 2024 | — |
| 8-K |
Current report
Material agreement
|
Jun 4, 2024 | May 31, 2024 |
| DEF 14A | Proxy statement | Jun 3, 2024 | Jun 29, 2024 |
| PRE 14A | Preliminary proxy statement | May 22, 2024 | Jun 29, 2024 |
| 10-Q | Quarterly report | May 10, 2024 | Mar 31, 2024 |
| 8-K |
Current report
Material agreement, New debt
|
May 2, 2024 | Apr 26, 2024 |
| 10-K/A | Amended annual report | Apr 29, 2024 | Dec 31, 2023 |
| 8-K |
Current report
Officer or director change
|
Mar 22, 2024 | Mar 18, 2024 |
| 8-K |
Current report
Officer or director change
|
Mar 14, 2024 | Mar 8, 2024 |
| 10-K | Annual report | Mar 5, 2024 | Dec 31, 2023 |
| NT 10-K | Filing | Mar 1, 2024 | Dec 31, 2023 |
| 8-K |
Current report
Material agreement, New debt
|
Nov 16, 2023 | Nov 10, 2023 |
| 10-Q | Quarterly report | Nov 9, 2023 | Sep 30, 2023 |
| 10-Q | Quarterly report | Aug 9, 2023 | Jun 30, 2023 |
| 10-Q | Quarterly report | May 10, 2023 | Mar 31, 2023 |
| 8-K |
Current report
Material agreement, New debt
|
Mar 8, 2023 | Mar 2, 2023 |
| 10-K | Annual report | Feb 28, 2023 | Dec 31, 2022 |
| 8-K |
Current report
Bylaw or fiscal year change
|
Jan 13, 2023 | Jan 9, 2023 |
| 8-K |
Current report
Shareholder vote results
|
Jan 6, 2023 | Dec 30, 2022 |
| DEFA14A | Additional proxy material | Dec 23, 2022 | — |
| DEFA14A | Additional proxy material | Dec 16, 2022 | — |
| DEF 14A | Proxy statement | Dec 5, 2022 | Dec 30, 2022 |
| PRE 14A | Preliminary proxy statement | Nov 25, 2022 | Dec 30, 2022 |
| 10-Q | Quarterly report | Nov 9, 2022 | Sep 30, 2022 |
| 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 | — |
| S-3 | Shelf registration | Oct 18, 2022 | — |
| 10-Q | Quarterly report | Aug 9, 2022 | Jun 30, 2022 |
| 8-K |
Current report
Change to shareholder rights, Bylaw or fiscal year change
|
Jul 26, 2022 | Jul 20, 2022 |
| UPLOAD | Letter from the SEC | Jul 14, 2022 | — |
| 10-K/A | Amended annual report | Jun 30, 2022 | Dec 31, 2021 |
| UPLOAD | Letter from the SEC | Jun 28, 2022 | — |
| 10-Q | Quarterly report | May 10, 2022 | Mar 31, 2022 |
| 10-K/A | Amended annual report | May 2, 2022 | Dec 31, 2021 |
| 10-K | Annual report | Mar 1, 2022 | Dec 31, 2021 |
| 8-K |
Current report
Material agreement, New debt
|
Nov 29, 2021 | Nov 22, 2021 |
| 10-Q | Quarterly report | Nov 15, 2021 | Sep 30, 2021 |
| 10-Q | Quarterly report | Aug 16, 2021 | Jun 30, 2021 |
| 8-K |
Current report
Shareholder vote results
|
May 24, 2021 | May 18, 2021 |
| 10-Q | Quarterly report | May 17, 2021 | Mar 31, 2021 |
| DEF 14A | Proxy statement | Apr 16, 2021 | May 18, 2021 |
| 10-K | Annual report | Mar 31, 2021 | Dec 31, 2020 |
| 8-K |
Current report
Material agreement, New debt
|
Mar 5, 2021 | Mar 1, 2021 |
| 8-K |
Current report
Auditor change
|
Jan 26, 2021 | Jan 20, 2021 |
| 10-Q | Quarterly report | Jan 15, 2021 | Sep 30, 2020 |
| NT 10-Q | Filing | Nov 10, 2020 | Sep 30, 2020 |
| 8-K |
Current report
Other events
|
Nov 2, 2020 | Oct 31, 2020 |
| 424B5 | Prospectus supplement | Oct 13, 2020 | — |
| 8-K/A |
Amended current report
Shareholder vote results
|
Sep 15, 2020 | Apr 18, 2020 |
| D | Filing | Sep 14, 2020 | — |
| 8-K |
Current report
Material agreement, Acquisition or sale of assets, Regulation FD disclosure
|
Sep 1, 2020 | Sep 1, 2020 |
| 8-K |
Current report
Material agreement, New debt
|
Aug 20, 2020 | Aug 14, 2020 |
| 10-Q | Quarterly report | Aug 10, 2020 | Jun 30, 2020 |
| 424B5 | Prospectus supplement | Aug 7, 2020 | — |
| 424B5 | Prospectus supplement | Jun 26, 2020 | — |
| 10-Q | Quarterly report | Jun 24, 2020 | Mar 31, 2020 |
| 10-K/A | Amended annual report | Jun 24, 2020 | Dec 31, 2019 |
| 424B5 | Prospectus supplement | Jun 12, 2020 | — |
| 8-K |
Current report
Officer or director change
|
Jun 8, 2020 | Jun 2, 2020 |
| 8-K |
Current report
Officer or director change
|
Jun 4, 2020 | May 29, 2020 |
| 424B5 | Prospectus supplement | May 29, 2020 | — |
| 8-K |
Current report
Material agreement, New debt
|
May 27, 2020 | May 20, 2020 |
| 8-K |
Current report
Other events
|
May 20, 2020 | May 20, 2020 |
| NT 10-Q | Filing | May 12, 2020 | Mar 31, 2020 |
| 8-K |
Current report
Shareholder vote results
|
Apr 23, 2020 | Apr 18, 2020 |
| 424B5 | Prospectus supplement | Apr 9, 2020 | — |
| 8-K |
Current report
Material agreement, New debt
|
Apr 1, 2020 | Mar 26, 2020 |
| DEF 14A | Proxy statement | Mar 27, 2020 | Apr 18, 2020 |
| 10-K | Annual report | Mar 16, 2020 | Dec 31, 2019 |
| 424B5 | Prospectus supplement | Feb 24, 2020 | — |
| 424B5 | Prospectus supplement | Jan 15, 2020 | — |
| 424B5 | Prospectus supplement | Jan 3, 2020 | — |
| 8-K |
Current report
Officer or director change
|
Dec 13, 2019 | Dec 13, 2019 |
| 10-Q | Quarterly report | Nov 12, 2019 | Sep 30, 2019 |
| EFFECT | Filing | Oct 31, 2019 | — |
| CORRESP | Letter to the SEC | Oct 29, 2019 | — |
| 424B5 | Prospectus supplement | Oct 28, 2019 | — |
| UPLOAD | Letter from the SEC | Oct 28, 2019 | — |
| 424B5 | Prospectus supplement | Oct 18, 2019 | — |
| S-3 | Shelf registration | Oct 18, 2019 | — |
| 10-Q | Quarterly report | Aug 9, 2019 | Jun 30, 2019 |
| 8-K |
Current report
Unregistered share sale
|
Jul 22, 2019 | Jul 16, 2019 |
| 424B5 | Prospectus supplement | Jul 18, 2019 | — |
| 424B5 | Prospectus supplement | Jul 17, 2019 | — |
| 8-K |
Current report
Material agreement, New debt
|
May 28, 2019 | May 21, 2019 |
| 10-Q | Quarterly report | May 10, 2019 | Mar 31, 2019 |
| 10-K | Annual report | Apr 2, 2019 | Dec 31, 2018 |
| NT 10-K | Filing | Mar 19, 2019 | Dec 31, 2018 |
| 8-K |
Current report
Shareholder vote results
|
Feb 7, 2019 | Feb 2, 2019 |
| DEF 14A | Proxy statement | Jan 8, 2019 | Feb 2, 2019 |
| 8-K |
Current report
Acquisition or sale of assets
|
Dec 20, 2018 | Dec 14, 2018 |
| 8-K |
Current report
Material agreement, New debt
|
Dec 11, 2018 | Dec 5, 2018 |
| 8-K |
Current report
Regulation FD disclosure
|
Nov 28, 2018 | Nov 28, 2018 |
| 8-K |
Current report
Officer or director change
|
Nov 23, 2018 | Nov 18, 2018 |
| 10-Q | Quarterly report | Nov 16, 2018 | Sep 30, 2018 |
| NT 10-Q | Filing | Nov 15, 2018 | Sep 30, 2018 |
| 8-K |
Current report
Material agreement, Unregistered share sale
|
Nov 13, 2018 | Nov 7, 2018 |
| 8-K |
Current report
Unregistered share sale, Change to shareholder rights
|
Sep 13, 2018 | Sep 7, 2018 |
| 10-Q | Quarterly report | Aug 14, 2018 | Jun 30, 2018 |
| 8-K |
Current report
Other events
|
Jun 28, 2018 | Jun 22, 2018 |
| 424B5 | Prospectus supplement | Jun 28, 2018 | — |
| 8-K |
Current report
New debt
|
Jun 18, 2018 | Jun 12, 2018 |
| 8-K |
Current report
Unregistered share sale, Officer or director change
|
Jun 1, 2018 | May 28, 2018 |
| 8-K |
Current report
Unregistered share sale
|
May 31, 2018 | May 24, 2018 |
| 8-K |
Current report
Unregistered share sale
|
May 21, 2018 | May 15, 2018 |
| 10-Q | Quarterly report | May 16, 2018 | Mar 31, 2018 |
| NT 10-Q | Filing | May 16, 2018 | Mar 31, 2018 |
| 8-K |
Current report
Material agreement, New debt, Unregistered share sale
|
May 7, 2018 | May 1, 2018 |
| 8-K |
Current report
Unregistered share sale, Change to shareholder rights, Bylaw or fiscal year change, Shareholder vote results
|
May 2, 2018 | Apr 26, 2018 |
| 10-K | Annual report | Apr 17, 2018 | Dec 31, 2017 |
| DEFR14A | Filing | Apr 12, 2018 | — |
| DEF 14A | Proxy statement | Apr 9, 2018 | Apr 27, 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 | — |
| 424B5 | Prospectus supplement | Mar 26, 2018 | — |
| PRE 14A | Preliminary proxy statement | Mar 26, 2018 | Mar 26, 2018 |
| 8-K |
Current report
Regulation FD disclosure
|
Mar 22, 2018 | Mar 22, 2018 |
| 8-K |
Current report
Material agreement, New debt, Unregistered share sale
|
Mar 20, 2018 | Mar 14, 2018 |
| 8-K |
Current report
Unregistered share sale
|
Mar 15, 2018 | Mar 9, 2018 |
| 8-K |
Current report
Unregistered share sale
|
Mar 7, 2018 | Dec 28, 2017 |
| 8-K |
Current report
Unregistered share sale, Officer or director change
|
Mar 2, 2018 | Feb 26, 2018 |
| 8-K |
Current report
Unregistered share sale
|
Feb 21, 2018 | Feb 15, 2018 |
| 8-K |
Current report
Shareholder vote results
|
Jan 25, 2018 | Jan 21, 2018 |
| 8-K |
Current report
Unregistered share sale, Officer or director change
|
Jan 16, 2018 | Jan 16, 2018 |
| D | Filing | Jan 10, 2018 | — |
| DEF 14A | Proxy statement | Jan 9, 2018 | Jan 21, 2018 |
| 8-K |
Current report
Material agreement, Unregistered share sale
|
Jan 5, 2018 | Dec 31, 2017 |
| 8-K |
Current report
Material agreement, Unregistered share sale, Change to shareholder rights, Bylaw or fiscal year change
|
Jan 4, 2018 | Dec 29, 2017 |
| 8-K |
Current report
Change to shareholder rights, Bylaw or fiscal year change, Regulation FD disclosure
|
Dec 21, 2017 | Dec 15, 2017 |
| 8-K |
Current report
Material agreement, Unregistered share sale, Change to shareholder rights, Bylaw or fiscal year change
|
Dec 7, 2017 | Dec 1, 2017 |
| 424B5 | Prospectus supplement | Dec 5, 2017 | — |
| 8-K |
Current report
Other events
|
Nov 21, 2017 | Nov 20, 2017 |
| 10-Q | Quarterly report | Nov 20, 2017 | Sep 30, 2017 |
| NT 10-Q | Filing | Nov 14, 2017 | Sep 30, 2017 |
| 424B5 | Prospectus supplement | Oct 24, 2017 | — |
| 8-K |
Current report
Material agreement
|
Oct 16, 2017 | Oct 10, 2017 |
| 8-K |
Current report
Regulation FD disclosure
|
Sep 22, 2017 | Sep 22, 2017 |
| 8-K |
Current report
Material agreement, Unregistered share sale
|
Sep 22, 2017 | Sep 20, 2017 |
| 424B5 | Prospectus supplement | Sep 22, 2017 | — |
| 10-Q | Quarterly report | Aug 21, 2017 | Jun 30, 2017 |
| NT 10-Q | Filing | Aug 15, 2017 | Jun 30, 2017 |
| 8-K |
Current report
Unregistered share sale
|
Aug 8, 2017 | Aug 3, 2017 |
| 8-K |
Current report
Unregistered share sale
|
Aug 7, 2017 | Aug 1, 2017 |
| 424B5 | Prospectus supplement | Aug 7, 2017 | — |
| 8-K |
Current report
Material agreement, Unregistered share sale, Change to shareholder rights
|
Aug 7, 2017 | Aug 7, 2017 |
| 8-K |
Current report
Unregistered share sale
|
Jul 26, 2017 | Jul 20, 2017 |
| 8-K |
Current report
Unregistered share sale
|
Jul 21, 2017 | Jul 17, 2017 |
| 8-K |
Current report
Material agreement, Agreement ended, Unregistered share sale
|
Jun 27, 2017 | Jun 21, 2017 |
| 8-K |
Current report
Unregistered share sale, Officer or director change
|
Jun 19, 2017 | Jun 13, 2017 |
| 8-K |
Current report
Material agreement
|
Jun 13, 2017 | Jun 7, 2017 |
| 8-K |
Current report
Material agreement, Unregistered share sale
|
May 31, 2017 | May 31, 2017 |
| 8-K |
Current report
Unregistered share sale
|
May 26, 2017 | May 22, 2017 |
| D | Filing | May 17, 2017 | — |
| 10-Q | Quarterly report | May 15, 2017 | Mar 31, 2017 |
| 8-K |
Current report
Material agreement, New debt
|
Apr 25, 2017 | Apr 19, 2017 |
| 10-K | Annual report | Apr 17, 2017 | Dec 31, 2016 |
| 424B5 | Prospectus supplement | Apr 17, 2017 | — |
| 8-K |
Current report
Other events
|
Apr 7, 2017 | Apr 7, 2017 |
| 8-K |
Current report
Unregistered share sale
|
Apr 5, 2017 | Mar 30, 2017 |
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
- 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.