Company facts
- Industry
- Pharmaceutical Preparations
- Headquarters
- South San Francisco, California
- Most recent report
- 8-K/A, filed Aug 14, 2026
- Incorporated
- Delaware
- Filings on record
- 892 filings
- On EDGAR
- CIK 1426800
- Fiscal year ends
- December
- Filer status
- Non-accelerated filer Smaller reporting company
Financials 8 of 66
News 8 of 191
Prospectuses and Registrations 8 of 62
- 424B5 Prospectus supplement for an offering May 26, 2026
- 424B5 Prospectus supplement for an offering May 22, 2026
- S-3 Shelf registration statement Mar 19, 2026
- S-8 Registration statement for an employee plan Mar 19, 2026
- 424B3 Prospectus supplement for an offering Nov 21, 2025
- S-3 Shelf registration statement Oct 14, 2025
- 424B5 Prospectus supplement for an offering Aug 11, 2025
- 424B5 Prospectus supplement for an offering Aug 11, 2025
Proxies 8 of 43
- DEFA14A Extra proxy material Apr 22, 2026
- DEF 14A Proxy statement for a shareholder vote Apr 22, 2026
- DEFA14A Extra proxy material Apr 23, 2025
- DEF 14A Proxy statement for a shareholder vote Apr 23, 2025
- DEFA14A Extra proxy material Apr 17, 2024
- DEF 14A Proxy statement for a shareholder vote Apr 17, 2024
- DEFA14A Extra proxy material Dec 21, 2023
- DEF 14A Proxy statement for a shareholder vote Dec 21, 2023
Ownership 8 of 460
- SCHEDULE 13G/A Large holder reported a passive stake, amended Aug 14, 2026
- SCHEDULE 13G/A Large holder reported a passive stake, amended Aug 13, 2026
- SCHEDULE 13G/A Large holder reported a passive stake, amended Aug 4, 2026
- 4 Insider reported a trade Jun 18, 2026
- 4 Insider reported a trade Jun 5, 2026
- 4 Insider reported a trade Jun 5, 2026
- 4 Insider reported a trade Jun 5, 2026
- 4 Insider reported a trade Jun 5, 2026
Other 8 of 70
- ARS Annual report sent to shareholders Apr 22, 2026
- EFFECT Notice that a registration became effective Mar 27, 2026
- CORRESP Reply to SEC staff Mar 25, 2026
- UPLOAD Comment letter from SEC staff Mar 24, 2026
- EFFECT Notice that a registration became effective Nov 21, 2025
- CORRESP Reply to SEC staff Nov 19, 2025
- S-3MEF Aug 7, 2025
- ARS Annual report sent to shareholders Apr 23, 2025
Everything here comes from Assembly Biosciences, Inc.'s own filings on SEC EDGAR. The filing list is rechecked every hour.