Real time Form 13D and 13G transaction reports:
- 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.
- Due to inconsistent filing format, it is highly recommended that you read the orignal filing form.
- Shares have beem adjusted for stock split.
"Insiders might sell their shares for any number of reasons, but they buy them for only one: they think the price will rise"
- Peter Lynch
What is insider trading>>
- Peter Lynch
What is insider trading>>
| Reported DateTime | Transaction Date | Type | Company Symbol | Filed By Symbol | Shares Owned % Owned | Shares Vs. Prev Report | View |
| 2026-05-15 4:15 pm Purchase | 2026-03-31 | 13G | ALTIMMUNE INC ALT | TANG CAPITAL MANAGEMENT, LLC | 666,022 0.300% | 666,022 (New Position) | Filing History |
| 2026-05-12 09:46 am Purchase | 2026-03-31 | 13G | ALTIMMUNE INC ALT | STATE STREET CORP STT | 7,145,550 5.500% | 3,731,723 (+109.31%) | Filing History |
| 2026-05-01 5:38 pm Purchase | 2026-04-24 | 13G | ALTIMMUNE INC ALT | VIKING GLOBAL INVESTORS LP | 13,400,000 6.700% | 13,400,000 (New Position) | Filing History |
| 2026-05-01 4:36 pm Purchase | 2026-04-24 | 13G | ALTIMMUNE INC ALT | TCG Crossover GP II, LLC | 20,000,000 9.800% | 20,000,000 (New Position) | Filing History |
| 2026-05-01 4:10 pm Purchase | 2026-04-24 | 13G | ALTIMMUNE INC ALT | RA Capital Management, L.P. | 13,000,000 6.500% | 13,000,000 (New Position) | Filing History |
| 2026-04-30 4:00 pm Purchase | 2026-04-23 | 13G | ALTIMMUNE INC ALT | Deep Track Capital, LP | 19,417,221 9.990% | 19,417,221 (New Position) | Filing History |
| 2026-03-26 3:23 pm Sale | 2026-03-13 | 13G | ALTIMMUNE INC ALT | VANGUARD GROUP INC | 0 0.000% | -9,491,159 (Position Closed) | Filing History |
| 2026-01-30 1:25 pm Purchase | 2025-12-31 | 13G | ALTIMMUNE INC ALT | VANGUARD GROUP INC | 9,491,159 9.090% | 5,919,187 (+165.71%) | Filing History |
| 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 History |
| 2025-05-15 11:05 am Sale | 2025-03-31 | 13G | ALTIMMUNE INC ALT | AMERIPRISE FINANCIAL INC AMP | 1,443,932 1.900% | -3,810,966 (-72.52%) | Filing History |
| 2025-02-14 2:31 pm Purchase | 2024-12-31 | 13G | ALTIMMUNE INC ALT | AMERIPRISE FINANCIAL INC AMP | 5,254,898 7.400% | 1,378,854 (+35.57%) | Filing History |
| 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 History |
| 2024-11-14 11:58 am Sale | 2024-09-30 | 13G | ALTIMMUNE INC ALT | AMERIPRISE FINANCIAL INC AMP | 3,876,044 5.450% | -307,638 (-7.35%) | Filing History |
| 2024-10-17 11:16 am Sale | 2024-09-30 | 13G | ALTIMMUNE INC ALT | STATE STREET CORP STT | 3,413,827 4.800% | -495,459 (-12.67%) | Filing History |
| 2024-10-16 4:21 pm Sale | 2024-09-30 | 13G | ALTIMMUNE INC ALT | Integrated Core Strategies (US) LLC | 144,153 0.200% | -2,767,784 (-95.05%) | Filing History |
| 2024-07-10 06:35 am Sale | 2024-06-30 | 13G | ALTIMMUNE INC ALT | STATE STREET CORP STT | 3,909,286 5.510% | -4,739,984 (-54.80%) | Filing History |
| 2024-04-10 09:40 am Purchase | 2024-03-31 | 13G | ALTIMMUNE INC ALT | STATE STREET CORP STT | 8,649,270 12.200% | 7,634,724 (+752.53%) | Filing History |
| 2024-03-05 4:30 pm Purchase | 2024-02-26 | 13G | ALTIMMUNE INC ALT | Integrated Core Strategies (US) LLC | 2,911,937 5.400% | 2,911,937 (New Position) | Filing History |
| 2024-02-14 4:00 pm Purchase | 2023-12-31 | 13G | ALTIMMUNE INC ALT | TANG CAPITAL PARTNERS LP | 2,750,000 5.100% | 49,550 (+1.83%) | Filing History |
| 2024-02-14 12:04 pm Purchase | 2023-12-31 | 13G | ALTIMMUNE INC ALT | Nuveen Asset Management LLC | 1,549,364 2.880% | 1,549,364 (New Position) | Filing History |