Altimmune, Inc. (ALT)
NASDAQ: ALT · Real-Time Price · USD
3.080
+0.200 (6.94%)
At close: Mar 31, 2026, 4:00 PM EDT
3.070
-0.010 (-0.31%)
After-hours: Mar 31, 2026, 7:59 PM EDT
Altimmune Stock Price History
Historical Data
| Date | Open | High | Low | Close | Adj. Close | Change | Volume |
|---|---|---|---|---|---|---|---|
| Mar 31, 2026 | 2.98 | 3.12 | 2.95 | 3.08 | 3.08 | 6.94% | 3,277,050 |
| Mar 30, 2026 | 3.03 | 3.03 | 2.87 | 2.88 | 2.88 | -4.64% | 3,116,331 |
| Mar 27, 2026 | 3.16 | 3.19 | 3.02 | 3.02 | 3.02 | -5.63% | 2,674,890 |
| Mar 26, 2026 | 3.26 | 3.33 | 3.19 | 3.20 | 3.20 | -3.32% | 2,194,819 |
| Mar 25, 2026 | 3.30 | 3.39 | 3.24 | 3.31 | 3.31 | 2.16% | 4,369,468 |
| Mar 24, 2026 | 3.37 | 3.41 | 3.23 | 3.24 | 3.24 | -5.81% | 3,345,417 |
| Mar 23, 2026 | 3.40 | 3.53 | 3.31 | 3.44 | 3.44 | 2.99% | 3,449,313 |
| Mar 20, 2026 | 3.43 | 3.52 | 3.31 | 3.34 | 3.34 | -2.34% | 12,523,672 |
| Mar 19, 2026 | 3.38 | 3.51 | 3.34 | 3.42 | 3.42 | - | 2,686,763 |
| Mar 18, 2026 | 3.50 | 3.52 | 3.36 | 3.42 | 3.42 | -3.12% | 3,477,122 |
| Mar 17, 2026 | 3.63 | 3.71 | 3.52 | 3.53 | 3.53 | -2.49% | 2,531,622 |
| Mar 16, 2026 | 3.60 | 3.68 | 3.54 | 3.62 | 3.62 | 3.43% | 2,650,194 |
| Mar 13, 2026 | 3.62 | 3.68 | 3.47 | 3.50 | 3.50 | -2.78% | 3,119,120 |
| Mar 12, 2026 | 3.77 | 3.77 | 3.58 | 3.60 | 3.60 | -5.26% | 2,959,387 |
| Mar 11, 2026 | 3.89 | 3.91 | 3.74 | 3.80 | 3.80 | -1.55% | 2,890,344 |
| Mar 10, 2026 | 3.90 | 4.04 | 3.83 | 3.86 | 3.86 | -0.52% | 3,565,682 |
| Mar 9, 2026 | 3.64 | 3.89 | 3.61 | 3.88 | 3.88 | 9.60% | 5,337,005 |
| Mar 6, 2026 | 3.54 | 3.75 | 3.42 | 3.54 | 3.54 | 1.00% | 5,385,353 |
| Mar 5, 2026 | 4.10 | 4.20 | 3.50 | 3.51 | 3.51 | -17.92% | 7,709,994 |
| Mar 4, 2026 | 4.19 | 4.35 | 4.13 | 4.27 | 4.27 | 2.64% | 2,267,348 |
| Mar 3, 2026 | 4.05 | 4.26 | 4.04 | 4.16 | 4.16 | - | 2,863,833 |
| Mar 2, 2026 | 4.24 | 4.27 | 4.15 | 4.16 | 4.16 | -3.48% | 2,388,473 |
| Feb 27, 2026 | 4.40 | 4.47 | 4.29 | 4.31 | 4.31 | -3.36% | 3,018,485 |
| Feb 26, 2026 | 4.56 | 4.59 | 4.38 | 4.46 | 4.46 | -2.19% | 1,902,855 |
| Feb 25, 2026 | 4.59 | 4.61 | 4.49 | 4.56 | 4.56 | -0.22% | 2,056,523 |
| Feb 24, 2026 | 4.52 | 4.83 | 4.52 | 4.57 | 4.57 | 1.11% | 2,978,948 |
| Feb 23, 2026 | 4.34 | 4.64 | 4.34 | 4.52 | 4.52 | 3.20% | 3,179,227 |
| Feb 20, 2026 | 4.49 | 4.51 | 4.36 | 4.38 | 4.38 | -2.45% | 4,136,634 |
| Feb 19, 2026 | 4.47 | 4.53 | 4.27 | 4.49 | 4.49 | 0.67% | 3,275,381 |
| Feb 18, 2026 | 4.50 | 4.55 | 4.42 | 4.46 | 4.46 | -0.89% | 2,829,078 |
| Feb 17, 2026 | 4.54 | 4.64 | 4.48 | 4.50 | 4.50 | -0.66% | 1,885,381 |
| Feb 13, 2026 | 4.62 | 4.75 | 4.53 | 4.53 | 4.53 | -0.88% | 3,887,968 |
| Feb 12, 2026 | 4.65 | 4.70 | 4.47 | 4.57 | 4.57 | -1.30% | 2,236,562 |
| Feb 11, 2026 | 4.72 | 4.75 | 4.54 | 4.63 | 4.63 | -0.43% | 1,866,963 |
| Feb 10, 2026 | 4.70 | 4.83 | 4.62 | 4.65 | 4.65 | -0.85% | 2,140,747 |
| Feb 9, 2026 | 4.85 | 4.96 | 4.65 | 4.69 | 4.69 | -3.70% | 3,722,751 |
| Feb 6, 2026 | 5.00 | 5.09 | 4.84 | 4.87 | 4.87 | -1.02% | 3,846,002 |
| Feb 5, 2026 | 5.09 | 5.28 | 4.88 | 4.92 | 4.92 | -4.09% | 3,972,566 |
| Feb 4, 2026 | 5.47 | 5.53 | 5.09 | 5.13 | 5.13 | -6.22% | 3,557,492 |
| Feb 3, 2026 | 5.55 | 5.64 | 5.21 | 5.47 | 5.47 | -1.44% | 4,565,876 |
| Feb 2, 2026 | 5.56 | 5.75 | 5.26 | 5.55 | 5.55 | -0.89% | 5,175,809 |
| Jan 30, 2026 | 5.05 | 5.66 | 5.03 | 5.60 | 5.60 | 9.80% | 6,280,832 |
| Jan 29, 2026 | 5.22 | 5.49 | 5.03 | 5.10 | 5.10 | -0.39% | 4,089,514 |
| Jan 28, 2026 | 5.93 | 6.36 | 5.04 | 5.12 | 5.12 | -17.15% | 13,079,967 |
| Jan 27, 2026 | 5.64 | 6.22 | 5.60 | 6.18 | 6.18 | 9.19% | 5,788,732 |
| Jan 26, 2026 | 5.50 | 5.69 | 5.19 | 5.66 | 5.66 | 2.91% | 5,736,699 |
| Jan 23, 2026 | 5.40 | 6.44 | 5.34 | 5.50 | 5.50 | 2.23% | 15,507,157 |
| Jan 22, 2026 | 4.65 | 5.40 | 4.65 | 5.38 | 5.38 | 16.45% | 8,194,956 |
| Jan 21, 2026 | 4.25 | 4.63 | 4.19 | 4.62 | 4.62 | 9.22% | 3,909,231 |
| Jan 20, 2026 | 4.10 | 4.26 | 4.03 | 4.23 | 4.23 | -0.24% | 4,516,644 |