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 |
|---|---|---|---|
| S-8 | Employee stock plan registration | Aug 20, 2026 | — |
| 424B5 | Prospectus supplement | May 26, 2026 | — |
| 424B5 | Prospectus supplement | May 22, 2026 | — |
| S-3 | Shelf registration | Mar 19, 2026 | — |
| S-8 | Employee stock plan registration | Mar 19, 2026 | — |
| 424B3 | Prospectus | Nov 21, 2025 | — |
| S-3 | Shelf registration | Oct 14, 2025 | — |
| 424B5 | Prospectus supplement | Aug 11, 2025 | — |
| 424B5 | Prospectus supplement | Aug 11, 2025 | — |
| S-3MEF | Filing | Aug 7, 2025 | — |
| S-8 | Employee stock plan registration | Aug 6, 2025 | — |
| S-3 | Shelf registration | Mar 20, 2025 | — |
| 424B5 | Prospectus supplement | Nov 7, 2024 | — |
| S-8 | Employee stock plan registration | Aug 8, 2024 | — |
| 424B5 | Prospectus supplement | Jun 18, 2024 | — |
| S-8 | Employee stock plan registration | Aug 9, 2023 | — |
| S-3 | Shelf registration | Mar 22, 2023 | — |
| S-8 | Employee stock plan registration | Aug 9, 2022 | — |
| S-8 | Employee stock plan registration | Aug 5, 2021 | — |
| S-8 | Employee stock plan registration | Aug 28, 2020 | — |
| S-3 | Shelf registration | Aug 28, 2020 | — |
| 424B5 | Prospectus supplement | Dec 13, 2019 | — |
| 424B5 | Prospectus supplement | Dec 11, 2019 | — |
| S-8 | Employee stock plan registration | Nov 7, 2019 | — |
| S-8 | Employee stock plan registration | Aug 5, 2019 | — |
| S-8 | Employee stock plan registration | Aug 8, 2018 | — |
| 424B5 | Prospectus supplement | Jul 13, 2018 | — |
| 424B5 | Prospectus supplement | Jul 10, 2018 | — |
| S-3 | Shelf registration | Dec 29, 2017 | — |
| 424B5 | Prospectus supplement | Nov 3, 2017 | — |
| 424B5 | Prospectus supplement | Nov 1, 2017 | — |
| S-8 | Employee stock plan registration | Aug 11, 2017 | — |
| S-8 | Employee stock plan registration | Mar 23, 2017 | — |
| S-8 | Employee stock plan registration | Aug 9, 2016 | — |
| S-3 | Shelf registration | Dec 30, 2015 | — |
| 424B5 | Prospectus supplement | Mar 20, 2015 | — |
| 424B5 | Prospectus supplement | Mar 18, 2015 | — |
| S-3 | Shelf registration | Nov 26, 2014 | — |
| 424B5 | Prospectus supplement | Oct 1, 2014 | — |
| 424B5 | Prospectus supplement | Oct 1, 2014 | — |
| S-8 | Employee stock plan registration | Sep 17, 2014 | — |
| 424B5 | Prospectus supplement | Sep 13, 2013 | — |
| 424B5 | Prospectus supplement | Jan 31, 2013 | — |
| 424B5 | Prospectus supplement | Jan 31, 2013 | — |
| 424B5 | Prospectus supplement | Jan 30, 2013 | — |
| 424B5 | Prospectus supplement | Jan 30, 2013 | — |
| S-8 | Employee stock plan registration | Jun 15, 2012 | — |
| 424B3 | Prospectus | May 30, 2012 | — |
| S-3/A | Amendment to form s-3 | May 25, 2012 | — |
| S-3 | Shelf registration | May 17, 2012 | — |
| S-3/A | Amendment 1 to form s-3 | Feb 9, 2012 | — |
| S-3 | Shelf registration | Jan 31, 2012 | — |
| 424B1 | Filing | Jul 14, 2011 | — |
| S-1MEF | Filing | Jul 14, 2011 | — |
| S-1/A | Amended registration statement | Jul 13, 2011 | — |
| S-1/A | Amended registration statement | Jul 6, 2011 | — |
| S-1 | Registration statement | Jun 7, 2011 | — |
| S-8 | Employee stock plan registration | Apr 20, 2011 | — |
| 424B4 | Prospectus | Dec 17, 2010 | — |
| S-1MEF | Filing | Dec 16, 2010 | — |
| S-1/A | Amended registration statement | Dec 9, 2010 | — |
| S-1/A | Amended registration statement | Dec 6, 2010 | — |
| S-1/A | Amended registration statement | Nov 16, 2010 | — |
| S-1/A | Amended registration statement | Oct 29, 2010 | — |
| S-1/A | Amended registration statement | Oct 4, 2010 | — |
| S-1 | Registration statement | Jul 20, 2010 | — |
Showing 66 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.