If you invested $1000 in Altimmune, Inc. (ALT) since IPO date, it would be worth $22 as of June 23, 2026, based on a reinvested dividends scenario. Over the same period, a $1000 investment made 5 years ago would be worth $180.98, while $1000 invested 1 year ago would be worth $419.17. This corresponds to total returns of -97.8%, -81.9%, -58.08%, respectively, with annualized returns of -34.31%, -28.94%, -58.08%.
Custom investment amounts or purchase dates can also be explored using the Stoculator calculator. Past performance does not guarantee future results.
Date Range:
| Date | Open | Close | Adj Close | High | Low | Volume |
|---|---|---|---|---|---|---|
| June 22, 2026 | 2.84 | 2.93 | 2.93 | 3.05 | 2.83 | 5.77M |
| June 18, 2026 | 2.68 | 2.7 | 2.7 | 2.77 | 2.68 | 11.68M |
| June 17, 2026 | 2.65 | 2.64 | 2.64 | 2.71 | 2.62 | 3.57M |
| June 16, 2026 | 2.64 | 2.62 | 2.62 | 2.68 | 2.6 | 2.91M |
| June 15, 2026 | 2.62 | 2.64 | 2.64 | 2.68 | 2.58 | 3.51M |
| June 12, 2026 | 2.61 | 2.61 | 2.61 | 2.66 | 2.58 | 2.14M |
| June 11, 2026 | 2.62 | 2.59 | 2.59 | 2.65 | 2.57 | 3.42M |
| June 10, 2026 | 2.62 | 2.61 | 2.61 | 2.71 | 2.61 | 3.03M |
| June 09, 2026 | 2.77 | 2.66 | 2.66 | 2.8 | 2.62 | 3.34M |
| June 08, 2026 | 2.75 | 2.73 | 2.73 | 2.78 | 2.68 | 2.17M |
| June 05, 2026 | 2.91 | 2.71 | 2.71 | 2.92 | 2.69 | 0 |
| June 04, 2026 | 2.84 | 2.92 | 2.92 | 3 | 2.84 | 2.81M |
| June 03, 2026 | 2.93 | 2.87 | 2.87 | 2.95 | 2.84 | 3.02M |
| June 02, 2026 | 2.99 | 2.9 | 2.9 | 3 | 2.9 | 3.1M |
| June 01, 2026 | 3.02 | 3.01 | 3.01 | 3.05 | 2.93 | 2.26M |
| May 29, 2026 | 3.07 | 3.05 | 3.05 | 3.1 | 3.02 | 2.59M |
| May 28, 2026 | 2.98 | 3.07 | 3.07 | 3.13 | 2.98 | 3.91M |
| May 27, 2026 | 2.99 | 2.98 | 2.98 | 3.03 | 2.96 | 2.59M |
| May 26, 2026 | 2.9 | 2.93 | 2.93 | 3 | 2.89 | 2.14M |
| May 22, 2026 | 2.94 | 2.9 | 2.9 | 3 | 2.88 | 1.99M |
| May 21, 2026 | 2.8 | 2.93 | 2.93 | 2.93 | 2.77 | 3.02M |
| May 20, 2026 | 2.76 | 2.82 | 2.82 | 2.85 | 2.73 | 2.18M |
| May 19, 2026 | 2.8 | 2.74 | 2.74 | 2.84 | 2.73 | 2.51M |
| May 18, 2026 | 2.85 | 2.8 | 2.8 | 2.89 | 2.72 | 3.44M |
| May 15, 2026 | 2.9 | 2.85 | 2.85 | 2.94 | 2.81 | 2.28M |
| May 14, 2026 | 3.01 | 2.92 | 2.92 | 3.03 | 2.9 | 2.38M |
| May 13, 2026 | 2.98 | 3.02 | 3.02 | 3.04 | 2.89 | 3.58M |
| May 12, 2026 | 3.08 | 3.08 | 3.08 | 3.11 | 3.01 | 2.4M |
| May 11, 2026 | 3.09 | 3.09 | 3.09 | 3.22 | 3.06 | 2.93M |
| May 08, 2026 | 3.07 | 3.09 | 3.09 | 3.11 | 3.01 | 2.85M |
| May 07, 2026 | 3.22 | 3.04 | 3.04 | 3.24 | 3 | 3.7M |
| May 06, 2026 | 3.06 | 3.26 | 3.26 | 3.26 | 3.04 | 4.08M |
| May 05, 2026 | 3.08 | 3.06 | 3.06 | 3.15 | 3 | 3.45M |
| May 04, 2026 | 2.84 | 3.02 | 3.02 | 3.04 | 2.84 | 5.16M |
| May 01, 2026 | 2.59 | 2.82 | 2.82 | 2.82 | 2.56 | 4.85M |
| April 30, 2026 | 2.66 | 2.6 | 2.6 | 2.68 | 2.58 | 5.64M |
| April 29, 2026 | 2.71 | 2.63 | 2.63 | 2.73 | 2.6 | 4.88M |
| April 28, 2026 | 2.78 | 2.74 | 2.74 | 2.85 | 2.72 | 4.84M |
| April 27, 2026 | 2.86 | 2.8 | 2.8 | 2.91 | 2.75 | 5.87M |
| April 24, 2026 | 2.95 | 2.85 | 2.85 | 3.01 | 2.82 | 14.68M |
| April 23, 2026 | 3.08 | 2.89 | 2.89 | 3.16 | 2.8 | 30.46M |
| April 22, 2026 | 3.45 | 3.47 | 3.47 | 3.51 | 3.42 | 1.86M |
| April 21, 2026 | 3.56 | 3.41 | 3.41 | 3.64 | 3.39 | 3.24M |
| April 20, 2026 | 3.45 | 3.56 | 3.56 | 3.58 | 3.39 | 2.16M |
| April 17, 2026 | 3.55 | 3.5 | 3.5 | 3.6 | 3.42 | 2.86M |
| April 16, 2026 | 3.4 | 3.51 | 3.51 | 3.55 | 3.35 | 2.57M |
| April 15, 2026 | 3.33 | 3.4 | 3.4 | 3.42 | 3.29 | 2.06M |
| April 14, 2026 | 3.25 | 3.29 | 3.29 | 3.32 | 3.23 | 1.98M |
| April 13, 2026 | 3.23 | 3.23 | 3.23 | 3.28 | 3.18 | 2.09M |
| April 10, 2026 | 3.39 | 3.24 | 3.24 | 3.41 | 3.22 | 1.92M |
| April 09, 2026 | 3.35 | 3.38 | 3.38 | 3.44 | 3.31 | 1.98M |
| April 08, 2026 | 3.48 | 3.37 | 3.37 | 3.54 | 3.36 | 1.69M |
| April 07, 2026 | 3.34 | 3.38 | 3.38 | 3.45 | 3.26 | 2.04M |
| April 06, 2026 | 3.34 | 3.33 | 3.33 | 3.48 | 3.3 | 2.32M |
| April 02, 2026 | 3.1 | 3.34 | 3.34 | 3.35 | 3.07 | 2.73M |
| April 01, 2026 | 3.14 | 3.12 | 3.12 | 3.23 | 3.1 | 2.04M |
| March 31, 2026 | 2.98 | 3.08 | 3.08 | 3.12 | 2.95 | 3.27M |
| March 30, 2026 | 3.03 | 2.88 | 2.88 | 3.03 | 2.87 | 3.09M |
| March 27, 2026 | 3.16 | 3.02 | 3.02 | 3.19 | 3.02 | 2.65M |
| March 26, 2026 | 3.26 | 3.2 | 3.2 | 3.33 | 3.19 | 2.17M |