Assembly Biosciences, Inc. SEC filings ASMB
Assembly Biosciences, Inc. has 901 filings in SEC EDGAR's recent list, going back to Feb 7, 2008. 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 Aug 13, 2026, covering the quarter ended Jun 30, 2026. The most recent current report (Form 8-K) was filed on Aug 13, 2026 (acquisition or sale of assets). The company's fiscal year ends on December 31.
| Form | Description | Filed | Period |
|---|---|---|---|
| 8-K/A |
Amended current report
Results of operations
|
Aug 14, 2026 | Aug 13, 2026 |
| 8-K |
Current report
Acquisition or sale of assets
|
Aug 13, 2026 | Aug 13, 2026 |
| 8-K |
Current report
Officer or director change, Shareholder vote results
|
Jun 5, 2026 | Jun 4, 2026 |
| 8-K |
Current report
Material agreement, Other events
|
May 26, 2026 | May 21, 2026 |
| 8-K |
Current report
Regulation FD disclosure, Other events
|
May 22, 2026 | May 22, 2026 |
| 8-K |
Current report
Results of operations
|
May 7, 2026 | May 7, 2026 |
| 8-K |
Current report
Officer or director change
|
Mar 30, 2026 | Mar 24, 2026 |
| 8-K |
Current report
Results of operations
|
Mar 19, 2026 | Mar 19, 2026 |
| 8-K |
Current report
Regulation FD disclosure, Other events
|
Dec 8, 2025 | Dec 8, 2025 |
| 8-K |
Current report
Results of operations
|
Nov 10, 2025 | Nov 10, 2025 |
| 8-K |
Current report
Material agreement, Unregistered share sale, Other events
|
Aug 11, 2025 | Aug 8, 2025 |
| 8-K |
Current report
Regulation FD disclosure, Other events
|
Aug 8, 2025 | Aug 8, 2025 |
| 8-K |
Current report
Results of operations, Other events
|
Aug 6, 2025 | Aug 6, 2025 |
| 8-K |
Current report
Other events
|
Jun 25, 2025 | Jun 25, 2025 |
| 8-K |
Current report
Officer or director change, Shareholder vote results
|
Jun 9, 2025 | Jun 5, 2025 |
| 8-K |
Current report
Results of operations
|
May 8, 2025 | May 8, 2025 |
| 8-K |
Current report
Results of operations
|
Mar 20, 2025 | Mar 20, 2025 |
| 8-K |
Current report
Other events
|
Feb 20, 2025 | Feb 20, 2025 |
| 8-K |
Current report
Material agreement, New debt
|
Jan 3, 2025 | Dec 30, 2024 |
| 8-K |
Current report
Other events
|
Dec 26, 2024 | Dec 26, 2024 |
| 8-K |
Current report
Material agreement, Unregistered share sale
|
Dec 19, 2024 | Dec 19, 2024 |
| 8-K |
Current report
Bylaw or fiscal year change
|
Dec 13, 2024 | Dec 12, 2024 |
| 8-K |
Current report
Material agreement
|
Nov 7, 2024 | Nov 7, 2024 |
| 8-K |
Current report
Results of operations
|
Nov 7, 2024 | Nov 7, 2024 |
| 8-K |
Current report
Other events
|
Sep 23, 2024 | Sep 23, 2024 |
| 8-K |
Current report
Results of operations
|
Aug 8, 2024 | Aug 8, 2024 |
| 8-K |
Current report
Material agreement, Unregistered share sale
|
Jun 18, 2024 | Jun 16, 2024 |
| 8-K |
Current report
Officer or director change, Shareholder vote results
|
Jun 3, 2024 | May 29, 2024 |
| 8-K |
Current report
Results of operations
|
May 8, 2024 | May 8, 2024 |
| 8-K |
Current report
Results of operations
|
Mar 28, 2024 | Mar 28, 2024 |
| 8-K |
Current report
Officer or director change
|
Mar 15, 2024 | Mar 12, 2024 |
| 8-K |
Current report
Change to shareholder rights, Bylaw or fiscal year change, Other events
|
Feb 13, 2024 | Feb 8, 2024 |
| 8-K |
Current report
Shareholder vote results, Other events
|
Feb 2, 2024 | Jan 31, 2024 |
| 8-K |
Current report
Agreement ended
|
Jan 17, 2024 | Jan 11, 2024 |
| 8-K |
Current report
Officer or director change, Other events
|
Dec 7, 2023 | Dec 1, 2023 |
| 8-K |
Current report
Results of operations
|
Nov 8, 2023 | Nov 8, 2023 |
| 8-K |
Current report
Material agreement, Unregistered share sale
|
Oct 17, 2023 | Oct 15, 2023 |
| 8-K |
Current report
Listing notice
|
Sep 29, 2023 | Sep 27, 2023 |
| 8-K |
Current report
Results of operations
|
Aug 9, 2023 | Aug 9, 2023 |
| 8-K |
Current report
Material agreement, New debt
|
Aug 7, 2023 | Aug 4, 2023 |
| 8-K |
Current report
Officer or director change, Shareholder vote results
|
May 30, 2023 | May 25, 2023 |
| 8-K |
Current report
Results of operations
|
May 4, 2023 | May 4, 2023 |
| 8-K |
Current report
Other events
|
Apr 18, 2023 | Apr 18, 2023 |
| 8-K |
Current report
Results of operations, Other events
|
Mar 22, 2023 | Mar 22, 2023 |
| 8-K |
Current report
Other events
|
Feb 15, 2023 | Feb 15, 2023 |
| 8-K |
Current report
Other events
|
Dec 19, 2022 | Dec 19, 2022 |
| 8-K |
Current report
Officer or director change, Bylaw or fiscal year change
|
Dec 12, 2022 | Dec 6, 2022 |
| 8-K |
Current report
Results of operations
|
Nov 8, 2022 | Nov 8, 2022 |
| 8-K |
Current report
Officer or director change, Regulation FD disclosure
|
Oct 5, 2022 | Oct 5, 2022 |
| 8-K |
Current report
Results of operations
|
Aug 9, 2022 | Aug 9, 2022 |
| 8-K |
Current report
Exit or restructuring costs, Officer or director change, Regulation FD disclosure
|
Jul 20, 2022 | Jul 19, 2022 |
| 8-K |
Current report
Officer or director change, Bylaw or fiscal year change, Shareholder vote results
|
May 27, 2022 | May 25, 2022 |
| 8-K |
Current report
Other events
|
May 24, 2022 | May 18, 2022 |
| 8-K |
Current report
Results of operations
|
May 12, 2022 | May 12, 2022 |
| 8-K |
Current report
Results of operations
|
Mar 10, 2022 | Mar 10, 2022 |
| 8-K |
Current report
Officer or director change
|
Feb 4, 2022 | Feb 1, 2022 |
| 8-K |
Current report
Other events
|
Jan 4, 2022 | Jan 4, 2022 |
| 8-K |
Current report
Results of operations
|
Nov 4, 2021 | Nov 4, 2021 |
| 8-K |
Current report
Other events
|
Sep 1, 2021 | Sep 1, 2021 |
| 8-K |
Current report
Results of operations
|
Aug 5, 2021 | Aug 5, 2021 |
| 8-K |
Current report
Officer or director change
|
Aug 3, 2021 | Jul 30, 2021 |
| 8-K |
Current report
Officer or director change
|
Jul 20, 2021 | Jul 19, 2021 |
| 8-K |
Current report
Officer or director change
|
Jun 1, 2021 | May 25, 2021 |
| 8-K |
Current report
Officer or director change, Shareholder vote results
|
May 25, 2021 | May 20, 2021 |
| 8-K |
Current report
Results of operations
|
May 6, 2021 | May 6, 2021 |
| 8-K |
Current report
Other events
|
Feb 26, 2021 | Feb 26, 2021 |
| 8-K |
Current report
Results of operations, Other events
|
Feb 25, 2021 | Feb 25, 2021 |
| 8-K |
Current report
Officer or director change
|
Feb 17, 2021 | Feb 11, 2021 |
| 8-K |
Current report
Bylaw or fiscal year change, Other events
|
Jan 27, 2021 | Jan 21, 2021 |
| 8-K |
Current report
Exit or restructuring costs, Officer or director change
|
Dec 8, 2020 | Dec 2, 2020 |
| 8-K |
Current report
Other events
|
Nov 17, 2020 | Nov 16, 2020 |
| 8-K |
Current report
Results of operations, Other events
|
Nov 5, 2020 | Nov 5, 2020 |
| 8-K |
Current report
Officer or director change
|
Oct 21, 2020 | Oct 19, 2020 |
| 8-K |
Current report
Other events
|
Aug 27, 2020 | Aug 27, 2020 |
| 8-K |
Current report
Results of operations
|
Aug 5, 2020 | Aug 5, 2020 |
| 8-K |
Current report
Material agreement, Other events
|
Jul 20, 2020 | Jul 17, 2020 |
| 8-K |
Current report
Agreement ended
|
Jun 18, 2020 | Jun 12, 2020 |
| 8-K |
Current report
Officer or director change, Bylaw or fiscal year change, Shareholder vote results
|
Jun 16, 2020 | Jun 11, 2020 |
| 8-K |
Current report
Results of operations
|
May 7, 2020 | May 7, 2020 |
| 8-K |
Current report
Results of operations
|
Mar 4, 2020 | Mar 4, 2020 |
| 8-K |
Current report
Officer or director change
|
Feb 11, 2020 | Feb 6, 2020 |
| 8-K |
Current report
Other events
|
Jan 3, 2020 | Jan 1, 2020 |
| 8-K |
Current report
Material agreement
|
Dec 16, 2019 | Dec 11, 2019 |
| 8-K |
Current report
Other events
|
Nov 12, 2019 | Nov 11, 2019 |
| 8-K |
Current report
Results of operations
|
Nov 7, 2019 | Nov 7, 2019 |
| 8-K |
Current report
Officer or director change
|
Oct 28, 2019 | Oct 28, 2019 |
| 8-K |
Current report
Officer or director change, Bylaw or fiscal year change
|
Aug 9, 2019 | Aug 6, 2019 |
| 8-K |
Current report
Results of operations
|
Aug 5, 2019 | Aug 5, 2019 |
| 8-K |
Current report
Officer or director change, Shareholder vote results
|
May 21, 2019 | May 17, 2019 |
| 8-K |
Current report
Results of operations
|
May 9, 2019 | May 9, 2019 |
| 8-K |
Current report
Officer or director change
|
May 2, 2019 | Apr 30, 2019 |
| 8-K |
Current report
Officer or director change
|
Apr 22, 2019 | Apr 17, 2019 |
| 8-K |
Current report
Results of operations
|
Feb 28, 2019 | Feb 28, 2019 |
| 8-K |
Current report
Results of operations
|
Nov 8, 2018 | Nov 8, 2018 |
| 8-K |
Current report
Officer or director change
|
Oct 12, 2018 | Oct 10, 2018 |
| 8-K |
Current report
Results of operations
|
Aug 8, 2018 | Aug 8, 2018 |
| 8-K |
Current report
Material agreement, New debt
|
Jul 20, 2018 | Jul 18, 2018 |
| 8-K |
Current report
Material agreement
|
Jul 16, 2018 | Jul 11, 2018 |
| 8-K |
Current report
Other events
|
Jul 9, 2018 | Jul 9, 2018 |
| 8-K |
Current report
Regulation FD disclosure
|
Jun 20, 2018 | Jun 20, 2018 |
| 8-K |
Current report
Officer or director change, Bylaw or fiscal year change, Shareholder vote results
|
Jun 1, 2018 | May 30, 2018 |
| 8-K |
Current report
Results of operations
|
May 7, 2018 | May 7, 2018 |
| 8-K |
Current report
Other events
|
Apr 12, 2018 | Apr 12, 2018 |
| 8-K |
Current report
Officer or director change
|
Apr 2, 2018 | Apr 2, 2018 |
| 8-K |
Current report
Officer or director change
|
Mar 12, 2018 | Mar 8, 2018 |
| 8-K |
Current report
Bylaw or fiscal year change
|
Jan 24, 2018 | Jan 24, 2018 |
| 8-K |
Current report
Officer or director change
|
Dec 18, 2017 | Dec 14, 2017 |
| 8-K |
Current report
Officer or director change
|
Dec 12, 2017 | Dec 8, 2017 |
| 8-K |
Current report
Material agreement
|
Nov 6, 2017 | Nov 1, 2017 |
| 8-K |
Current report
Officer or director change
|
Oct 12, 2017 | Oct 10, 2017 |
| 8-K |
Current report
Regulation FD disclosure
|
Sep 26, 2017 | Sep 26, 2017 |
| 8-K |
Current report
Regulation FD disclosure
|
Sep 25, 2017 | Sep 25, 2017 |
| 8-K |
Current report
Regulation FD disclosure
|
Sep 7, 2017 | Sep 7, 2017 |
| 8-K/A |
Amended current report
Shareholder vote results
|
Jun 14, 2017 | Jun 1, 2017 |
| 8-K |
Current report
Shareholder vote results
|
Jun 2, 2017 | Jun 1, 2017 |
| 8-K |
Current report
Material agreement, Regulation FD disclosure
|
Jan 10, 2017 | Jan 6, 2017 |
| 8-K |
Current report
Regulation FD disclosure
|
Jan 9, 2017 | Jan 9, 2017 |
| 8-K |
Current report
Officer or director change
|
Dec 9, 2016 | Dec 7, 2016 |
| 8-K |
Current report
Officer or director change
|
Dec 2, 2016 | Nov 28, 2016 |
| 8-K |
Current report
Regulation FD disclosure
|
Nov 9, 2016 | Nov 9, 2016 |
| 8-K |
Current report
Other events
|
Sep 1, 2016 | Sep 1, 2016 |
| 8-K |
Current report
Officer or director change, Shareholder vote results
|
Jun 6, 2016 | Jun 2, 2016 |
| 8-K |
Current report
Regulation FD disclosure
|
Feb 24, 2016 | Feb 24, 2016 |
| 8-K |
Current report
Regulation FD disclosure
|
Jan 12, 2016 | Jan 11, 2016 |
| 8-K |
Current report
Officer or director change, Regulation FD disclosure
|
Dec 21, 2015 | Dec 18, 2015 |
| 8-K |
Current report
Officer or director change, Shareholder vote results
|
Jun 1, 2015 | May 28, 2015 |
| 8-K |
Current report
Other events
|
May 19, 2015 | May 19, 2015 |
| 8-K |
Current report
Auditor change
|
May 11, 2015 | May 11, 2015 |
| 8-K |
Current report
Other events
|
Apr 6, 2015 | Apr 6, 2015 |
| 8-K |
Current report
Material agreement, Other events
|
Mar 19, 2015 | Mar 18, 2015 |
| 8-K |
Current report
Results of operations, Other events
|
Feb 24, 2015 | Feb 24, 2015 |
| 8-K |
Current report
Officer or director change, Other events
|
Feb 17, 2015 | Feb 10, 2015 |
| 8-K |
Current report
Material agreement, Agreement ended
|
Oct 1, 2014 | Sep 26, 2014 |
| 8-K/A | Amended current report | Sep 17, 2014 | Jul 11, 2014 |
| 8-K |
Current report
Other events
|
Aug 13, 2014 | Aug 13, 2014 |
| 8-K |
Current report
Agreement ended, Other events
|
Jul 30, 2014 | Jul 24, 2014 |
| 8-K |
Current report
Acquisition or sale of assets, Unregistered share sale, Officer or director change, Bylaw or fiscal year change
|
Jul 14, 2014 | Jul 10, 2014 |
| 8-K |
Current report
Shareholder vote results, Other events
|
Jul 11, 2014 | Jul 10, 2014 |
| 8-K |
Current report
Material agreement, Other events
|
May 19, 2014 | May 16, 2014 |
| 8-K |
Current report
Other events
|
Apr 4, 2014 | Apr 4, 2014 |
| 8-K |
Current report
Other events
|
Feb 12, 2014 | Feb 12, 2014 |
| 8-K |
Current report
Officer or director change
|
Jan 16, 2014 | Jan 15, 2014 |
| 8-K |
Current report
Other events
|
Jan 8, 2014 | Jan 8, 2014 |
| 8-K |
Current report
Other events
|
Nov 25, 2013 | Nov 25, 2013 |
| 8-K |
Current report
Other events
|
Nov 25, 2013 | Nov 25, 2013 |
| 8-K |
Current report
Material agreement
|
Sep 13, 2013 | Sep 13, 2013 |
| 8-K |
Current report
Other events
|
Sep 11, 2013 | Sep 11, 2013 |
| 8-K |
Current report
Shareholder vote results
|
Jun 5, 2013 | Jun 4, 2013 |
| 8-K |
Current report
Officer or director change
|
Apr 9, 2013 | Apr 5, 2013 |
| 8-K |
Current report
Other events
|
Feb 7, 2013 | Feb 7, 2013 |
| 8-K |
Current report
Bylaw or fiscal year change, Other events
|
Feb 4, 2013 | Jan 30, 2013 |
| 8-K |
Current report
Material agreement, Other events
|
Jan 30, 2013 | Jan 30, 2013 |
| 8-K |
Current report
Other events
|
Jan 22, 2013 | Jan 22, 2013 |
| 8-K |
Current report
Other events
|
Jan 7, 2013 | Jan 7, 2013 |
| 8-K |
Current report
Other events
|
Nov 13, 2012 | Nov 13, 2012 |
| 8-K |
Current report
Other events
|
Nov 5, 2012 | Nov 5, 2012 |
| 8-K |
Current report
Officer or director change, Other events
|
Sep 21, 2012 | Sep 17, 2012 |
| 8-K |
Current report
Other events
|
Sep 5, 2012 | Sep 5, 2012 |
| 8-K |
Current report
Other events
|
Jun 25, 2012 | Jun 25, 2012 |
| 8-K |
Current report
Other events
|
May 16, 2012 | May 16, 2012 |
| 8-K |
Current report
Shareholder vote results
|
May 14, 2012 | May 8, 2012 |
| 8-K |
Current report
Other events
|
May 14, 2012 | May 14, 2012 |
| 8-K |
Current report
Other events
|
May 7, 2012 | May 7, 2012 |
| 8-K |
Current report
Other events
|
Apr 30, 2012 | Apr 30, 2012 |
| 8-K |
Current report
Officer or director change
|
Mar 22, 2012 | Mar 16, 2012 |
| 8-K |
Current report
Other events
|
Mar 5, 2012 | Mar 5, 2012 |
| 8-K |
Current report
Other events
|
Feb 13, 2012 | Feb 13, 2012 |
| 8-K |
Current report
Officer or director change
|
Jan 20, 2012 | Jan 17, 2012 |
| 8-K |
Current report
Other events
|
Jan 13, 2012 | Jan 13, 2012 |
| 8-K |
Current report
Other events
|
Jan 9, 2012 | Jan 9, 2012 |
| 8-K |
Current report
Other events
|
Dec 21, 2011 | Dec 21, 2011 |
| 8-K |
Current report
Acquisition or sale of assets
|
Nov 18, 2011 | Nov 14, 2011 |
| 8-K |
Current report
Other events
|
Nov 14, 2011 | Nov 14, 2011 |
| 8-K |
Current report
Other events
|
Nov 14, 2011 | Nov 14, 2011 |
| 8-K |
Current report
Other events
|
Nov 9, 2011 | Nov 9, 2011 |
| 8-K |
Current report
Regulation FD disclosure
|
Sep 12, 2011 | Sep 12, 2011 |
| 8-K |
Current report
Material agreement, Officer or director change, Other events
|
Aug 25, 2011 | Aug 22, 2011 |
| 8-K |
Current report
Other events
|
Jul 19, 2011 | Jul 19, 2011 |
| 8-K |
Current report
Material agreement, Other events
|
Jul 14, 2011 | Jul 13, 2011 |
| 8-K |
Current report
Other events
|
Jun 22, 2011 | Jun 22, 2011 |
| 8-K |
Current report
Material agreement
|
Jun 7, 2011 | Jun 5, 2011 |
| 8-K |
Current report
Other events
|
May 31, 2011 | May 31, 2011 |
| 8-K |
Current report
Shareholder vote results
|
May 25, 2011 | May 19, 2011 |
| 8-K |
Current report
Regulation FD disclosure, Other events
|
May 3, 2011 | May 2, 2011 |
| 8-K/A | Amended current report | Mar 21, 2011 | Mar 18, 2011 |
| 8-K |
Current report
Regulation FD disclosure, Other events
|
Mar 18, 2011 | Mar 18, 2011 |
| 8-K |
Current report
Regulation FD disclosure
|
Feb 14, 2011 | Feb 14, 2011 |
| 8-K |
Current report
Other events
|
Feb 1, 2011 | Feb 1, 2011 |
| 8-K |
Current report
Other events
|
Jan 27, 2011 | Jan 25, 2011 |
| 8-K |
Current report
Auditor change
|
Jan 20, 2011 | Jan 13, 2011 |
| 8-K |
Current report
Other events
|
Jan 7, 2011 | Jan 7, 2010 |
Showing 191 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
- ASMB (Nasdaq)
- Fiscal year ends
- December 31
- Incorporated in
- DE
- Headquarters
- South San Francisco, CA
- SEC filer status
- Non-accelerated filer, Smaller reporting company
- SEC CIK
- 1426800
- Former names
- VENTRUS BIOSCIENCES INC (until Jul 11, 2014)
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Source: SEC EDGAR filings. This is company-reported data, not investment advice.