Altimmune, Inc. SEC filings ALT
Altimmune, Inc. has 1,005 filings in SEC EDGAR's recent list, going back to Jan 31, 2011. Its latest annual report, Form ARS, was filed on Mar 17, 2026 for the period ended Dec 31, 2025. The latest quarterly report (Form 10-Q) was filed on Aug 12, 2026, covering the quarter ended Jun 30, 2026. The most recent current report (Form 8-K) was filed on Oct 29, 2026 (new debt). The company's fiscal year ends on December 31.
| Form | Description | Filed | Period |
|---|---|---|---|
| ARS | Annual report to shareholders | Mar 17, 2026 | Dec 31, 2025 |
| 10-K | Annual report | Mar 6, 2026 | Dec 31, 2025 |
| ARS | Annual report to shareholders | Aug 15, 2025 | Dec 31, 2024 |
| 10-K | Annual report | Feb 27, 2025 | Dec 31, 2024 |
| ARS | Annual report to shareholders | Aug 15, 2024 | Dec 31, 2023 |
| 10-K | Annual report | Mar 27, 2024 | Dec 31, 2023 |
| ARS | Annual report to shareholders | Aug 16, 2023 | Dec 31, 2022 |
| 10-K | Annual report | Feb 28, 2023 | Dec 31, 2022 |
| 10-K | Annual report | Mar 15, 2022 | Dec 31, 2021 |
| 10-K | Annual report | Feb 25, 2021 | Dec 31, 2020 |
| 10-K | Annual report | Mar 27, 2020 | Dec 31, 2019 |
| 10-K | Annual report | Apr 1, 2019 | Dec 31, 2018 |
| 10-K/A | Amended annual report | Apr 30, 2018 | Dec 31, 2017 |
| 10-K | Annual report | Apr 2, 2018 | Dec 31, 2017 |
| 10-K | Annual report | Mar 14, 2017 | Dec 31, 2016 |
| 10-K | Annual report | Mar 11, 2016 | Dec 31, 2015 |
| 10-K | Annual report | Mar 11, 2015 | Dec 31, 2014 |
| ARS | Annual report to shareholders | May 12, 2014 | Dec 31, 2013 |
| 10-K/A | Amended annual report | Apr 30, 2014 | Dec 31, 2013 |
| 10-K | Annual report | Mar 11, 2014 | Dec 31, 2013 |
| 10-K | Annual report | Mar 14, 2013 | Dec 31, 2012 |
| 10-K | Annual report | Mar 8, 2012 | Dec 31, 2011 |
| 10-K/A | Amended annual report | Apr 29, 2011 | Dec 31, 2010 |
| 10-K | Annual report | Mar 31, 2011 | Dec 31, 2010 |
Showing 24 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.
New to this? Read What Are SEC Filings? 10-K, 10-Q, 8-K and Other Forms Explained.
Company profile
- Industry
- Pharmaceutical Preparations (SIC 2834)
- Listed as
- ALT (Nasdaq)
- Fiscal year ends
- December 31
- Incorporated in
- DE
- Headquarters
- Morristown, NJ
- SEC filer status
- Non-accelerated filer, Smaller reporting company
- SEC CIK
- 1326190
- Former names
- PHARMATHENE, INC (until May 3, 2017); HEALTHCARE ACQUISITION CORP (until Oct 15, 2007)
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Source: SEC EDGAR filings. This is company-reported data, not investment advice.