Altimmune, Inc. (ALT)
NASDAQ: ALT · Real-Time Price · USD
6.18
+0.52 (9.19%)
At close: Jan 27, 2026, 4:00 PM EST
5.25
-0.93 (-15.05%)
Pre-market: Jan 28, 2026, 6:30 AM EST
Altimmune Stock Price History
Historical Data
| Date | Open | High | Low | Close | Adj. Close | Change | Volume |
|---|---|---|---|---|---|---|---|
| Jan 27, 2026 | 5.64 | 6.22 | 5.60 | 6.18 | 6.18 | 9.19% | 5,643,169 |
| Jan 26, 2026 | 5.50 | 5.69 | 5.19 | 5.66 | 5.66 | 2.91% | 5,572,811 |
| Jan 23, 2026 | 5.40 | 6.44 | 5.34 | 5.50 | 5.50 | 2.23% | 15,346,236 |
| Jan 22, 2026 | 4.65 | 5.40 | 4.65 | 5.38 | 5.38 | 16.45% | 7,706,566 |
| Jan 21, 2026 | 4.25 | 4.63 | 4.19 | 4.62 | 4.62 | 9.22% | 3,881,000 |
| Jan 20, 2026 | 4.10 | 4.26 | 4.03 | 4.23 | 4.23 | -0.24% | 4,499,311 |
| Jan 16, 2026 | 4.30 | 4.37 | 4.17 | 4.24 | 4.24 | - | 2,553,401 |
| Jan 15, 2026 | 4.15 | 4.40 | 4.05 | 4.24 | 4.24 | 1.44% | 4,529,858 |
| Jan 14, 2026 | 4.00 | 4.21 | 3.98 | 4.18 | 4.18 | 4.24% | 3,259,953 |
| Jan 13, 2026 | 4.04 | 4.10 | 3.96 | 4.01 | 4.01 | -0.99% | 2,552,153 |
| Jan 12, 2026 | 4.08 | 4.13 | 4.00 | 4.05 | 4.05 | 0.75% | 2,747,588 |
| Jan 9, 2026 | 4.12 | 4.18 | 3.99 | 4.02 | 4.02 | -1.47% | 3,032,572 |
| Jan 8, 2026 | 4.15 | 4.22 | 4.02 | 4.08 | 4.08 | -2.63% | 3,828,727 |
| Jan 7, 2026 | 4.00 | 4.36 | 3.98 | 4.19 | 4.19 | 5.81% | 7,248,712 |
| Jan 6, 2026 | 4.08 | 4.18 | 3.86 | 3.96 | 3.96 | -3.18% | 5,624,828 |
| Jan 5, 2026 | 4.10 | 4.53 | 3.96 | 4.09 | 4.09 | 16.52% | 26,852,020 |
| Jan 2, 2026 | 3.62 | 3.66 | 3.48 | 3.51 | 3.51 | -2.77% | 3,543,435 |
| Dec 31, 2025 | 3.60 | 3.63 | 3.52 | 3.61 | 3.61 | - | 4,278,981 |
| Dec 30, 2025 | 3.68 | 3.72 | 3.60 | 3.61 | 3.61 | -1.90% | 3,045,221 |
| Dec 29, 2025 | 3.84 | 3.84 | 3.65 | 3.68 | 3.68 | -4.66% | 4,474,329 |
| Dec 26, 2025 | 3.97 | 3.99 | 3.84 | 3.86 | 3.86 | -3.02% | 2,869,080 |
| Dec 24, 2025 | 4.05 | 4.11 | 3.97 | 3.98 | 3.98 | -0.50% | 2,065,202 |
| Dec 23, 2025 | 4.10 | 4.16 | 3.98 | 4.00 | 4.00 | -3.38% | 4,408,994 |
| Dec 22, 2025 | 3.96 | 4.45 | 3.95 | 4.14 | 4.14 | 6.15% | 6,832,935 |
| Dec 19, 2025 | 4.58 | 4.59 | 3.83 | 3.90 | 3.90 | -22.77% | 22,374,297 |
| Dec 18, 2025 | 5.23 | 5.28 | 5.02 | 5.05 | 5.05 | -0.79% | 2,836,906 |
| Dec 17, 2025 | 5.03 | 5.37 | 5.02 | 5.09 | 5.09 | 1.19% | 2,867,146 |
| Dec 16, 2025 | 5.22 | 5.28 | 4.92 | 5.03 | 5.03 | -4.73% | 4,585,766 |
| Dec 15, 2025 | 5.29 | 5.50 | 5.17 | 5.28 | 5.28 | 0.19% | 3,690,108 |
| Dec 12, 2025 | 5.40 | 6.03 | 5.25 | 5.27 | 5.27 | -1.31% | 6,332,750 |
| Dec 11, 2025 | 5.40 | 5.63 | 5.31 | 5.34 | 5.34 | -1.66% | 2,753,024 |
| Dec 10, 2025 | 5.49 | 5.56 | 5.36 | 5.43 | 5.43 | -1.63% | 3,331,417 |
| Dec 9, 2025 | 5.69 | 5.83 | 5.37 | 5.52 | 5.52 | -1.60% | 4,800,660 |
| Dec 8, 2025 | 5.35 | 5.74 | 5.03 | 5.61 | 5.61 | 7.06% | 5,549,220 |
| Dec 5, 2025 | 5.31 | 5.44 | 5.19 | 5.24 | 5.24 | -1.32% | 2,583,807 |
| Dec 4, 2025 | 5.09 | 5.46 | 5.00 | 5.31 | 5.31 | 3.91% | 3,112,724 |
| Dec 3, 2025 | 4.82 | 5.15 | 4.70 | 5.11 | 5.11 | 7.35% | 2,566,364 |
| Dec 2, 2025 | 5.00 | 5.00 | 4.75 | 4.76 | 4.76 | -3.45% | 3,020,974 |
| Dec 1, 2025 | 5.08 | 5.12 | 4.73 | 4.93 | 4.93 | -6.27% | 4,393,552 |
| Nov 28, 2025 | 5.21 | 5.33 | 5.15 | 5.26 | 5.26 | 1.74% | 2,119,835 |
| Nov 26, 2025 | 5.11 | 5.31 | 5.10 | 5.17 | 5.17 | 0.58% | 2,561,290 |
| Nov 25, 2025 | 5.10 | 5.25 | 4.98 | 5.14 | 5.14 | 0.78% | 3,326,056 |
| Nov 24, 2025 | 4.83 | 5.19 | 4.80 | 5.10 | 5.10 | 6.03% | 4,683,627 |
| Nov 21, 2025 | 4.46 | 4.88 | 4.44 | 4.81 | 4.81 | 7.61% | 3,481,434 |
| Nov 20, 2025 | 4.67 | 4.71 | 4.40 | 4.47 | 4.47 | -2.61% | 2,995,081 |
| Nov 19, 2025 | 4.54 | 4.75 | 4.51 | 4.59 | 4.59 | -1.29% | 4,030,761 |
| Nov 18, 2025 | 4.16 | 4.73 | 4.09 | 4.65 | 4.65 | 10.98% | 4,334,226 |
| Nov 17, 2025 | 4.14 | 4.22 | 4.07 | 4.19 | 4.19 | 0.48% | 2,313,741 |
| Nov 14, 2025 | 3.95 | 4.23 | 3.95 | 4.17 | 4.17 | 2.71% | 2,628,365 |
| Nov 13, 2025 | 4.18 | 4.22 | 4.03 | 4.06 | 4.06 | -4.02% | 2,434,039 |