Altimmune Inc. (ALT)
NASDAQ: ALT
· Real-Time Price · USD
3.55
-0.08 (-2.20%)
At close: Aug 18, 2025, 3:59 PM
3.56
0.21%
After-hours: Aug 18, 2025, 04:30 PM EDT
ALT Stock Price History
Historical Data
| Date | Open | High | Low | Close | Adj Close | % Change | Volume |
|---|---|---|---|---|---|---|---|
| Aug 15, 2025 | 3.68 | 3.74 | 3.62 | 3.63 | 3.63 | -1.36% | 3,043,355 |
| Aug 14, 2025 | 3.70 | 3.77 | 3.65 | 3.68 | 3.68 | -1.60% | 2,888,915 |
| Aug 13, 2025 | 3.64 | 3.91 | 3.55 | 3.74 | 3.74 | 3.31% | 3,960,700 |
| Aug 12, 2025 | 3.51 | 3.86 | 3.51 | 3.62 | 3.62 | 7.10% | 5,401,011 |
| Aug 11, 2025 | 3.44 | 3.54 | 3.34 | 3.38 | 3.38 | -2.03% | 2,786,600 |
| Aug 8, 2025 | 3.51 | 3.56 | 3.43 | 3.45 | 3.45 | -1.99% | 2,308,100 |
| Aug 7, 2025 | 3.66 | 3.68 | 3.49 | 3.52 | 3.52 | -2.22% | 2,430,025 |
| Aug 6, 2025 | 3.65 | 3.65 | 3.54 | 3.60 | 3.60 | -1.91% | 1,786,200 |
| Aug 5, 2025 | 3.55 | 3.74 | 3.54 | 3.67 | 3.67 | 2.51% | 2,536,100 |
| Aug 4, 2025 | 3.66 | 3.66 | 3.57 | 3.58 | 3.58 | -0.83% | 1,888,447 |
| Aug 1, 2025 | 3.62 | 3.72 | 3.58 | 3.61 | 3.61 | -2.17% | 1,814,212 |
| Jul 31, 2025 | 3.61 | 3.77 | 3.61 | 3.69 | 3.69 | 1.10% | 2,735,600 |
| Jul 30, 2025 | 3.90 | 3.90 | 3.58 | 3.65 | 3.65 | -4.70% | 3,318,100 |
| Jul 29, 2025 | 4.01 | 4.03 | 3.74 | 3.83 | 3.83 | -4.96% | 3,781,300 |
| Jul 28, 2025 | 4.10 | 4.14 | 4.03 | 4.03 | 4.03 | -1.23% | 2,211,100 |
| Jul 25, 2025 | 4.06 | 4.17 | 4.01 | 4.08 | 4.08 | -0.73% | 2,969,000 |
| Jul 24, 2025 | 4.26 | 4.32 | 4.09 | 4.11 | 4.11 | -4.20% | 2,015,146 |
| Jul 23, 2025 | 4.22 | 4.39 | 4.18 | 4.29 | 4.29 | 2.14% | 5,002,940 |
| Jul 22, 2025 | 4.08 | 4.25 | 4.06 | 4.20 | 4.20 | 3.70% | 3,266,400 |
| Jul 21, 2025 | 4.13 | 4.26 | 4.03 | 4.05 | 4.05 | -0.74% | 3,014,931 |