Company facts
- Industry
- Pharmaceutical Preparations
- Headquarters
- Morristown, New Jersey
- Most recent report
- 8-K, filed Oct 29, 2026
- Incorporated
- Delaware
- Filings on record
- 1,000+ filings
- On EDGAR
- CIK 1326190
- Fiscal year ends
- December
- Filer status
- Non-accelerated filer, Smaller reporting company
Financials 8 of 67
News 8 of 203
Prospectuses and Registrations 8 of 53
- S-8 Registration statement for an employee plan May 13, 2026
- 424B5 Prospectus supplement for an offering Apr 24, 2026
- 424B5 Prospectus supplement for an offering Apr 22, 2026
- S-8 Registration statement for an employee plan Feb 6, 2026
- 424B5 Prospectus supplement for an offering Jan 28, 2026
- S-3/A Shelf registration statement, amended Nov 13, 2025
- S-3 Shelf registration statement Nov 6, 2025
- 424B5 Prospectus supplement for an offering Nov 6, 2025
Proxies 8 of 25
- DEF 14A Proxy statement for a shareholder vote Mar 17, 2026
- PRE 14A Preliminary proxy statement Mar 6, 2026
- DEF 14A Proxy statement for a shareholder vote Aug 15, 2025
- DEF 14A Proxy statement for a shareholder vote Aug 15, 2024
- DEF 14A Proxy statement for a shareholder vote Aug 16, 2023
- DEF 14A Proxy statement for a shareholder vote Aug 16, 2022
- DEF 14A Proxy statement for a shareholder vote Aug 16, 2021
- DEF 14A Proxy statement for a shareholder vote Aug 21, 2020
Ownership 8 of 569
- 4 Insider reported a trade Nov 4, 2026
- 3 Insider reported their initial holding Nov 4, 2026
- 4 Insider reported a trade Nov 4, 2026
- 3 Insider reported their initial holding Nov 4, 2026
- 4 Insider reported a trade Oct 5, 2026
- 4 Insider reported a trade Oct 5, 2026
- 4 Insider reported a trade Oct 2, 2026
- 3 Insider reported their initial holding Oct 2, 2026
Other 8 of 83
- S-3MEF Apr 22, 2026
- ARS Annual report sent to shareholders Mar 17, 2026
- EFFECT Notice that a registration became effective Dec 5, 2025
- CORRESP Reply to SEC staff Dec 3, 2025
- UPLOAD Comment letter from SEC staff Aug 19, 2025
- ARS Annual report sent to shareholders Aug 15, 2025
- CORRESP Reply to SEC staff Aug 12, 2025
- UPLOAD Comment letter from SEC staff Aug 8, 2025
Everything here comes from Altimmune, Inc.'s own filings on SEC EDGAR. The filing list is rechecked every hour.