Altimmune, Inc. (ALT)
NASDAQ: ALT · Real-Time Price · USD
2.300
-0.130 (-5.35%)
Oct 14, 2026, 12:03 PM EDT - Market open
Altimmune Stock Price History
| Date | Open | High | Low | Close | Adj. Close | Change | Volume |
|---|---|---|---|---|---|---|---|
| Oct 14, 2026 | 2.40 | 2.41 | 2.30 | 2.30 | 2.30 | -5.35% | 1,970,259 |
| Oct 13, 2026 | 2.56 | 2.56 | 2.43 | 2.43 | 2.43 | -5.08% | 3,699,231 |
| Oct 12, 2026 | 2.59 | 2.63 | 2.56 | 2.56 | 2.56 | -1.92% | 2,154,963 |
| Oct 9, 2026 | 2.60 | 2.64 | 2.57 | 2.61 | 2.61 | 0.38% | 2,677,079 |
| Oct 8, 2026 | 2.66 | 2.66 | 2.55 | 2.60 | 2.60 | -2.26% | 4,921,252 |
| Oct 7, 2026 | 2.64 | 2.74 | 2.63 | 2.66 | 2.66 | -0.37% | 3,153,626 |
| Oct 6, 2026 | 2.70 | 2.70 | 2.64 | 2.67 | 2.67 | - | 7,605,180 |
| Oct 5, 2026 | 2.73 | 2.75 | 2.65 | 2.67 | 2.67 | -2.38% | 3,791,633 |
| Oct 2, 2026 | 2.80 | 2.81 | 2.71 | 2.74 | 2.74 | -0.91% | 4,235,022 |
| Oct 1, 2026 | 2.85 | 2.85 | 2.75 | 2.76 | 2.76 | -3.50% | 3,582,810 |
| Sep 30, 2026 | 2.99 | 2.99 | 2.86 | 2.86 | 2.86 | -3.70% | 4,898,476 |
| Sep 29, 2026 | 2.99 | 3.01 | 2.92 | 2.97 | 2.97 | 0.34% | 2,560,376 |
| Sep 28, 2026 | 3.04 | 3.07 | 2.95 | 2.96 | 2.96 | -3.27% | 3,304,384 |
| Sep 25, 2026 | 3.05 | 3.11 | 3.00 | 3.06 | 3.06 | 0.66% | 2,857,658 |
| Sep 24, 2026 | 3.18 | 3.20 | 2.98 | 3.04 | 3.04 | -4.70% | 3,664,870 |
| Sep 23, 2026 | 3.42 | 3.43 | 3.15 | 3.19 | 3.19 | -6.45% | 4,512,525 |
| Sep 22, 2026 | 3.33 | 3.41 | 3.25 | 3.41 | 3.41 | 4.28% | 3,978,393 |
| Sep 21, 2026 | 3.31 | 3.34 | 3.24 | 3.27 | 3.27 | 0.62% | 3,515,229 |
| Sep 18, 2026 | 3.23 | 3.26 | 3.18 | 3.25 | 3.25 | 0.31% | 12,175,391 |
| Sep 17, 2026 | 3.31 | 3.35 | 3.21 | 3.24 | 3.24 | - | 3,454,021 |
| Sep 16, 2026 | 3.27 | 3.29 | 3.20 | 3.24 | 3.24 | 0.31% | 3,325,584 |
| Sep 15, 2026 | 3.30 | 3.31 | 3.21 | 3.23 | 3.23 | -2.12% | 2,332,432 |
| Sep 14, 2026 | 3.27 | 3.36 | 3.27 | 3.30 | 3.30 | 0.92% | 2,459,862 |
| Sep 11, 2026 | 3.33 | 3.41 | 3.26 | 3.27 | 3.27 | -0.61% | 2,676,639 |
| Sep 10, 2026 | 3.32 | 3.35 | 3.25 | 3.29 | 3.29 | -1.79% | 2,541,855 |
| Sep 9, 2026 | 3.35 | 3.43 | 3.29 | 3.35 | 3.35 | -0.30% | 3,067,395 |
| Sep 8, 2026 | 3.46 | 3.55 | 3.34 | 3.36 | 3.36 | -1.75% | 3,586,246 |
| Sep 4, 2026 | 3.28 | 3.43 | 3.25 | 3.42 | 3.42 | 5.88% | 4,841,325 |
| Sep 3, 2026 | 3.30 | 3.32 | 3.19 | 3.23 | 3.23 | -1.52% | 2,528,911 |
| Sep 2, 2026 | 3.10 | 3.34 | 3.10 | 3.28 | 3.28 | 6.15% | 7,450,216 |
| Sep 1, 2026 | 3.07 | 3.10 | 3.02 | 3.09 | 3.09 | -0.64% | 2,333,846 |
| Aug 31, 2026 | 3.08 | 3.14 | 3.06 | 3.11 | 3.11 | - | 2,215,231 |
| Aug 28, 2026 | 3.21 | 3.23 | 3.06 | 3.11 | 3.11 | -4.01% | 3,187,025 |
| Aug 27, 2026 | 3.19 | 3.25 | 3.13 | 3.24 | 3.24 | 2.86% | 2,243,055 |
| Aug 26, 2026 | 3.20 | 3.20 | 3.09 | 3.15 | 3.15 | -1.56% | 4,043,725 |
| Aug 25, 2026 | 3.14 | 3.23 | 3.11 | 3.20 | 3.20 | 2.89% | 3,800,176 |
| Aug 24, 2026 | 3.13 | 3.13 | 3.03 | 3.11 | 3.11 | - | 2,705,401 |
| Aug 21, 2026 | 2.98 | 3.24 | 2.95 | 3.11 | 3.11 | 5.42% | 6,147,628 |
| Aug 20, 2026 | 3.07 | 3.08 | 2.92 | 2.95 | 2.95 | -5.45% | 4,675,069 |
| Aug 19, 2026 | 3.04 | 3.20 | 3.01 | 3.12 | 3.12 | 5.05% | 10,781,754 |
| Aug 18, 2026 | 2.99 | 3.03 | 2.96 | 2.97 | 2.97 | -1.00% | 2,425,574 |
| Aug 17, 2026 | 2.94 | 3.02 | 2.90 | 3.00 | 3.00 | 2.04% | 4,022,608 |
| Aug 14, 2026 | 2.95 | 2.97 | 2.86 | 2.94 | 2.94 | 2.08% | 2,987,919 |
| Aug 13, 2026 | 2.95 | 2.96 | 2.84 | 2.88 | 2.88 | -1.71% | 4,007,371 |
| Aug 12, 2026 | 3.05 | 3.20 | 2.92 | 2.93 | 2.93 | -2.33% | 5,984,593 |
| Aug 11, 2026 | 3.06 | 3.08 | 2.98 | 3.00 | 3.00 | -1.64% | 3,536,538 |
| Aug 10, 2026 | 3.09 | 3.10 | 2.99 | 3.05 | 3.05 | -0.97% | 5,257,613 |
| 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 |