BlackRock, Inc. 13D and 13G filings for Altimmune, Inc.:
- Schedule 13D must be filed within ten days after a person or an organization acquires beneficial ownership of more than 5% of a voting class of a company's equity securities.
- Shares have been adjusted for stock splits.
| Reported DateTime | Transaction Date | Type | Company Symbol | Filed By Symbol | Shares Owned % Owned | Shares Vs. Prev Report | View |
| 2025-07-16 7:02 pm Sale | 2025-06-30 | 13G | Altimmune, Inc. ALT | BlackRock Inc. BLK | 6,133,427 7.600% | -25,878![]() (-0.42%) | Filing |
| 2025-02-05 1:23 pm Purchase | 2024-12-31 | 13G | Altimmune, Inc. ALT | BlackRock Inc. BLK | 6,159,305 8.700% | 2,114,598![]() (+52.28%) | Filing |
| 2024-01-26 11:49 am Purchase | 2023-12-31 | 13G | Altimmune, Inc. ALT | BlackRock Inc. BLK | 4,044,707 7.500% | 3,082,523![]() (+320.37%) | Filing |
| 2022-07-08 4:56 pm Sale | 2022-06-30 | 13G | Altimmune, Inc. ALT | BlackRock Inc. BLK | 962,184 2.200% | -1,994,083![]() (-67.45%) | Filing |
| 2022-02-04 4:12 pm Purchase | 2021-12-31 | 13G | Altimmune, Inc. ALT | BlackRock Inc. BLK | 2,956,267 7.400% | 2,956,267![]() (New Position) | Filing |

