ALT - Company ID 0001326190
Altimmune, Inc. has filed 981 public company documents between 2010 and 2026. The most frequent type is insider trade (419 filings), alongside the regular cadence of annual reports, quarterly reports, and event disclosures every public company must make. Use the filters to focus on one filing type, or flip the sort to trace the company's history from its earliest paperwork.
Data parsed from SEC EDGAR XBRL filings. See the full market cap rankings.
| Type | Filing | Filed | Period covered | Open |
|---|---|---|---|---|
| 4 | Insider trade | 6mo ago2026-01-05 | 2026-01-01 | View filing |
| 4 | Insider trade | 6mo ago2026-01-05 | 2026-01-05 | View filing |
| 4 | Insider trade | 6mo ago2025-12-29 | 2025-12-29 | View filing |
| 4 | Insider trade | 6mo ago2025-12-23 | 2025-12-23 | View filing |
| 4 | Insider trade | 6mo ago2025-12-22 | 2025-12-22 | View filing |
| 8-K | Major company event | 6mo ago2025-12-19 | 2025-12-19 | View filing |
| EFFECT | EFFECT | 7mo ago2025-12-05 | - | View filing |
| CORRESP | Company correspondence | 7mo ago2025-12-03 | - | View filing |
| 4 | Insider trade | 7mo ago2025-12-01 | 2025-12-01 | View filing |
| 8-K | Major company event | 7mo ago2025-12-01 | 2025-11-30 | View filing |
| S-3/A | S-3/A | 8mo ago2025-11-13 | - | View filing |
| 4 | Insider trade | 8mo ago2025-11-12 | 2025-11-11 | View filing |
| S-3 | Securities registration | 8mo ago2025-11-06 | - | View filing |
| 8-K | Major company event | 8mo ago2025-11-06 | 2025-11-06 | View filing |
| 424B5 | Prospectus supplement | 8mo ago2025-11-06 | - | View filing |
| 10-Q | Quarterly report | 8mo ago2025-11-06 | 2025-09-30 | View filing |
| 8-K | Major company event | 8mo ago2025-11-06 | 2025-11-06 | View filing |
| 8-K | Major company event | 9mo ago2025-10-03 | 2025-10-01 | View filing |
| 4 | Insider trade | 9mo ago2025-10-03 | 2025-10-01 | View filing |
| 4 | Insider trade | 9mo ago2025-10-03 | 2025-10-01 | View filing |
| 3 | New insider ownership | 9mo ago2025-10-03 | 2025-10-01 | View filing |
| 4 | Insider trade | 9mo ago2025-09-29 | 2025-09-25 | View filing |
| 4 | Insider trade | 9mo ago2025-09-29 | 2025-09-25 | View filing |
| 4 | Insider trade | 9mo ago2025-09-29 | 2025-09-25 | View filing |
| 4 | Insider trade | 9mo ago2025-09-29 | 2025-09-25 | View filing |
| 4 | Insider trade | 9mo ago2025-09-29 | 2025-09-25 | View filing |
| 4 | Insider trade | 9mo ago2025-09-29 | 2025-09-25 | View filing |
| 4 | Insider trade | 9mo ago2025-09-29 | 2025-09-25 | View filing |
| 4 | Insider trade | 9mo ago2025-09-29 | 2025-09-25 | View filing |
| 4 | Insider trade | 9mo ago2025-09-29 | 2025-09-25 | View filing |
| 8-K | Major company event | 9mo ago2025-09-25 | 2025-09-25 | View filing |
| 4 | Insider trade | 9mo ago2025-09-17 | 2025-09-16 | View filing |
| 3 | New insider ownership | 9mo ago2025-09-17 | 2025-09-16 | View filing |
| UPLOAD | SEC correspondence | 10mo ago2025-08-19 | - | View filing |
| DEF 14A | Proxy statement | 11mo ago2025-08-15 | 2025-09-25 | View filing |
| ARS | Annual report to shareholders | 11mo ago2025-08-15 | 2024-12-31 | View filing |
| 8-K | Major company event | 11mo ago2025-08-12 | 2025-08-12 | View filing |
| CORRESP | Company correspondence | 11mo ago2025-08-12 | - | View filing |
| 10-Q | Quarterly report | 11mo ago2025-08-12 | 2025-06-30 | View filing |
| UPLOAD | SEC correspondence | 11mo ago2025-08-08 | - | View filing |
| 4 | Insider trade | 11mo ago2025-08-04 | 2025-07-31 | View filing |
| 4 | Insider trade | 11mo ago2025-08-04 | 2025-07-31 | View filing |
| 4 | Insider trade | 11mo ago2025-08-04 | 2025-07-31 | View filing |
| SCHEDULE 13G/A | SCHEDULE 13G/A | 12mo ago2025-07-16 | - | View filing |
| 8-K | Major company event | 1y ago2025-06-26 | 2025-06-26 | View filing |
| 10-Q | Quarterly report | 1y ago2025-05-13 | 2025-03-31 | View filing |
| 8-K | Major company event | 1y ago2025-05-13 | 2025-05-13 | View filing |
| 4 | Insider trade | 1y ago2025-03-18 | 2025-03-17 | View filing |
| 4 | Insider trade | 1y ago2025-03-14 | 2025-03-13 | View filing |
| EFFECT | EFFECT | 1y ago2025-03-13 | - | View filing |