The highest closing price for Altimmune (ALT) last month was $3.56, on April 20. It was down 17.2% for the month. The latest price is $3.09.
| DATE | OPEN | HIGH | LOW | CLOSE | VOLUME |
|---|---|---|---|---|---|
April 30 2026 | $2.66 | $2.68 | $2.58 | $2.60 | 5,675,500 |
April 29 2026 | $2.71 | $2.73 | $2.60 | $2.63 | 4,888,600 |
April 28 2026 | $2.78 | $2.85 | $2.72 | $2.74 | 4,870,600 |
April 27 2026 | $2.86 | $2.91 | $2.75 | $2.80 | 5,894,900 |
April 24 2026 | $2.95 | $3.01 | $2.82 | $2.85 | 14,733,700 |
April 23 2026 | $3.08 | $3.16 | $2.80 | $2.89 | 30,489,000 |
April 22 2026 | $3.45 | $3.51 | $3.42 | $3.47 | 2,948,100 |
April 21 2026 | $3.56 | $3.64 | $3.39 | $3.41 | 3,251,000 |
April 20 2026 | $3.45 | $3.58 | $3.39 | $3.56 | 2,161,600 |
April 17 2026 | $3.55 | $3.60 | $3.42 | $3.50 | 2,868,800 |
April 16 2026 | $3.40 | $3.55 | $3.35 | $3.51 | 2,580,500 |
April 15 2026 | $3.33 | $3.42 | $3.29 | $3.40 | 2,080,100 |
April 14 2026 | $3.25 | $3.32 | $3.23 | $3.29 | 1,991,000 |
April 13 2026 | $3.23 | $3.28 | $3.18 | $3.23 | 2,122,600 |
April 10 2026 | $3.39 | $3.41 | $3.22 | $3.24 | 1,936,600 |
April 09 2026 | $3.35 | $3.44 | $3.31 | $3.38 | 1,989,200 |
April 08 2026 | $3.48 | $3.54 | $3.36 | $3.37 | 1,695,700 |
April 07 2026 | $3.34 | $3.45 | $3.26 | $3.38 | 2,039,600 |
April 06 2026 | $3.34 | $3.48 | $3.30 | $3.33 | 2,360,600 |
April 02 2026 | $3.10 | $3.35 | $3.07 | $3.34 | 2,737,000 |
April 01 2026 | $3.14 | $3.23 | $3.10 | $3.12 | 2,111,700 |
Daily pricing data for Altimmune dates back to 10/6/2005, and may be incomplete.