Altimmune, Inc. (ALT)
NASDAQ: ALT · Real-Time Price · USD
3.080
+0.070 (2.33%)
At close: Aug 7, 2026, 4:00 PM EDT
3.070
-0.010 (-0.32%)
After-hours: Aug 7, 2026, 7:53 PM EDT
Altimmune Stock Price History
| Date | Open | High | Low | Close | Adj. Close | Change | Volume |
|---|---|---|---|---|---|---|---|
| Aug 7, 2026 | 3.05 | 3.10 | 3.00 | 3.08 | 3.08 | 2.33% | 4,501,070 |
| Aug 6, 2026 | 3.03 | 3.05 | 2.95 | 3.01 | 3.01 | -0.66% | 3,971,327 |
| Aug 5, 2026 | 3.07 | 3.12 | 3.01 | 3.03 | 3.03 | -1.30% | 3,059,980 |
| Aug 4, 2026 | 3.01 | 3.08 | 2.95 | 3.07 | 3.07 | 2.33% | 8,150,826 |
| Aug 3, 2026 | 2.88 | 3.03 | 2.86 | 3.00 | 3.00 | 5.63% | 4,606,304 |
| Jul 31, 2026 | 2.99 | 2.99 | 2.78 | 2.84 | 2.84 | -4.70% | 3,878,858 |
| Jul 30, 2026 | 2.93 | 3.01 | 2.86 | 2.98 | 2.98 | 2.05% | 5,411,670 |
| Jul 29, 2026 | 3.00 | 3.10 | 2.90 | 2.92 | 2.92 | -2.34% | 8,289,415 |
| Jul 28, 2026 | 3.16 | 3.31 | 2.82 | 2.99 | 2.99 | 1.01% | 17,045,598 |
| Jul 27, 2026 | 2.80 | 3.03 | 2.80 | 2.96 | 2.96 | 6.86% | 4,055,688 |
| Jul 24, 2026 | 2.85 | 2.89 | 2.76 | 2.77 | 2.77 | -2.46% | 1,901,410 |
| Jul 23, 2026 | 2.79 | 2.84 | 2.75 | 2.84 | 2.84 | 1.07% | 1,625,226 |
| Jul 22, 2026 | 2.81 | 2.87 | 2.77 | 2.81 | 2.81 | -0.35% | 2,277,432 |
| Jul 21, 2026 | 2.81 | 2.87 | 2.78 | 2.82 | 2.82 | 0.36% | 1,980,795 |
| Jul 20, 2026 | 2.89 | 2.91 | 2.79 | 2.81 | 2.81 | -2.09% | 2,608,261 |
| Jul 17, 2026 | 2.79 | 2.95 | 2.77 | 2.87 | 2.87 | 0.70% | 2,961,650 |
| Jul 16, 2026 | 2.96 | 2.97 | 2.81 | 2.85 | 2.85 | -4.36% | 2,993,891 |
| Jul 15, 2026 | 2.94 | 3.00 | 2.89 | 2.98 | 2.98 | 1.71% | 2,852,815 |
| Jul 14, 2026 | 2.98 | 3.02 | 2.90 | 2.93 | 2.93 | -2.01% | 3,290,832 |
| Jul 13, 2026 | 3.01 | 3.02 | 2.92 | 2.99 | 2.99 | -1.97% | 2,446,526 |
| Jul 10, 2026 | 3.12 | 3.14 | 2.95 | 3.05 | 3.05 | -2.24% | 2,984,486 |
| Jul 9, 2026 | 3.11 | 3.15 | 3.04 | 3.12 | 3.12 | 0.32% | 2,869,721 |
| Jul 8, 2026 | 2.94 | 3.11 | 2.93 | 3.11 | 3.11 | 2.98% | 3,499,665 |
| Jul 7, 2026 | 3.08 | 3.12 | 2.96 | 3.02 | 3.02 | -1.95% | 4,619,754 |
| Jul 6, 2026 | 3.25 | 3.30 | 3.08 | 3.08 | 3.08 | -2.53% | 4,348,091 |
| Jul 2, 2026 | 3.18 | 3.26 | 3.10 | 3.16 | 3.16 | 0.32% | 4,077,524 |
| Jul 1, 2026 | 3.02 | 3.40 | 3.00 | 3.15 | 3.15 | 3.62% | 7,975,988 |
| Jun 30, 2026 | 2.95 | 3.14 | 2.91 | 3.04 | 3.04 | 3.40% | 4,332,484 |
| Jun 29, 2026 | 2.85 | 2.94 | 2.79 | 2.94 | 2.94 | 4.26% | 3,638,874 |
| Jun 26, 2026 | 2.85 | 2.90 | 2.74 | 2.82 | 2.82 | -1.74% | 17,105,423 |
| Jun 25, 2026 | 2.96 | 3.00 | 2.86 | 2.87 | 2.87 | -2.71% | 2,782,884 |
| Jun 24, 2026 | 2.92 | 3.04 | 2.92 | 2.95 | 2.95 | 1.37% | 3,494,078 |
| Jun 23, 2026 | 2.88 | 3.04 | 2.88 | 2.91 | 2.91 | -0.68% | 4,223,911 |
| Jun 22, 2026 | 2.84 | 3.05 | 2.83 | 2.93 | 2.93 | 8.52% | 5,776,510 |
| Jun 18, 2026 | 2.68 | 2.77 | 2.68 | 2.70 | 2.70 | 2.27% | 11,688,234 |
| Jun 17, 2026 | 2.65 | 2.71 | 2.62 | 2.64 | 2.64 | 0.76% | 3,570,898 |
| Jun 16, 2026 | 2.64 | 2.68 | 2.60 | 2.62 | 2.62 | -0.76% | 2,907,175 |
| Jun 15, 2026 | 2.62 | 2.68 | 2.58 | 2.64 | 2.64 | 1.15% | 3,516,863 |
| Jun 12, 2026 | 2.61 | 2.66 | 2.58 | 2.61 | 2.61 | 0.77% | 2,144,903 |
| Jun 11, 2026 | 2.62 | 2.65 | 2.57 | 2.59 | 2.59 | -0.77% | 3,425,331 |
| Jun 10, 2026 | 2.62 | 2.71 | 2.61 | 2.61 | 2.61 | -1.88% | 3,042,400 |
| Jun 9, 2026 | 2.77 | 2.80 | 2.62 | 2.66 | 2.66 | -2.56% | 3,352,798 |
| Jun 8, 2026 | 2.75 | 2.78 | 2.68 | 2.73 | 2.73 | 0.74% | 2,172,837 |
| Jun 5, 2026 | 2.92 | 2.92 | 2.69 | 2.71 | 2.71 | -7.19% | 3,129,223 |
| Jun 4, 2026 | 2.84 | 3.00 | 2.84 | 2.92 | 2.92 | 1.74% | 2,818,707 |
| Jun 3, 2026 | 2.93 | 2.95 | 2.84 | 2.87 | 2.87 | -1.03% | 3,033,284 |
| Jun 2, 2026 | 2.99 | 3.00 | 2.90 | 2.90 | 2.90 | -3.65% | 3,144,481 |
| Jun 1, 2026 | 3.02 | 3.05 | 2.93 | 3.01 | 3.01 | -1.31% | 2,294,436 |
| May 29, 2026 | 3.07 | 3.10 | 3.02 | 3.05 | 3.05 | -0.65% | 2,596,555 |
| May 28, 2026 | 2.98 | 3.13 | 2.98 | 3.07 | 3.07 | 3.02% | 3,932,808 |