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2.20
6.78%
-0.16
Altimmune Inc Stock (ALT) Price History
The historical daily chart and data for Altimmune Inc stock (ALT), show that the latest closing stock price as of October 16, 2026, is $2.20.
- Altimmune Inc all-time high stock price is $137.70, occurred on May 26, 2017.
- The lowest Altimmune Inc stock price recorded was $0.019 on July 08, 2016. Since then, Altimmune Inc's stock price has risen over 11,479% to $2.20 now.
- The 52-week high stock price for ALT is $6.4399, representing a 192.72% increase from the current share price, occurred on January 23, 2026.
- The 52-week low stock price for ALT is $2.17, indicating a -1.36% decrease from the current share price, occurred on October 16, 2026.
- The closing price of Altimmune Inc (ALT) stock in the beginning of 2025 was $7.11. The stock closed the year at $3.61, a loss of over -49.23% for the year.
The table below shows more information about ALT historical price data:
Daily
Weekly
Monthly
7D
30D
60D
YTD
1Y
| Date | High | Low | High - Low | Volume | % Change |
|---|---|---|---|---|---|
| Oct 16, 2026 | $2.37 | $2.17 | $0.1991 | 4,233,856.0 | -6.78% |
| Oct 15, 2026 | $2.38 | $2.29 | $0.09 | 3,353,752.0 | +2.16% |
| Oct 14, 2026 | $2.41 | $2.29 | $0.12 | 5,626,995.0 | -4.94% |
| Oct 13, 2026 | $2.56 | $2.43 | $0.13 | 3,715,987.0 | -5.08% |
| Oct 12, 2026 | $2.62 | $2.56 | $0.065 | 2,159,732.0 | -1.92% |
| Oct 09, 2026 | $2.64 | $2.57 | $0.07 | 2,677,746.0 | +0.38% |
| Oct 08, 2026 | $2.66 | $2.55 | $0.11 | 4,931,190.0 | -2.26% |
| Oct 07, 2026 | $2.74 | $2.63 | $0.11 | 3,168,244.0 | -0.37% |
| Oct 06, 2026 | $2.70 | $2.64 | $0.06 | 7,627,410.0 | +0.00% |
| Oct 05, 2026 | $2.75 | $2.65 | $0.0967 | 3,839,540.0 | -2.38% |
| Oct 02, 2026 | $2.81 | $2.71 | $0.10 | 4,252,719.0 | -0.91% |
| Oct 01, 2026 | $2.85 | $2.75 | $0.10 | 3,593,559.0 | -3.50% |
| Sep 30, 2026 | $2.99 | $2.86 | $0.13 | 4,922,487.0 | -3.70% |
| Sep 29, 2026 | $3.01 | $2.92 | $0.086 | 2,560,427.0 | +0.34% |
| Sep 28, 2026 | $3.07 | $2.95 | $0.12 | 3,359,772.0 | -3.27% |
| Sep 25, 2026 | $3.11 | $3.00 | $0.11 | 2,859,131.0 | +0.66% |
| Sep 24, 2026 | $3.20 | $2.98 | $0.22 | 3,665,092.0 | -4.70% |
| Sep 23, 2026 | $3.42 | $3.15 | $0.275 | 4,531,546.0 | -6.45% |
| Sep 22, 2026 | $3.41 | $3.25 | $0.16 | 4,003,284.0 | +4.28% |
| Sep 21, 2026 | $3.34 | $3.24 | $0.1004 | 3,516,137.0 | +0.62% |
| Sep 18, 2026 | $3.26 | $3.18 | $0.08 | 12,175,720.0 | +0.31% |
Altimmune Inc Stock (ALT) Year by Year Price History
In this detailed analysis, we present a comprehensive overview of the price movements of Altimmune Inc stock over the years. By exploring the year-by-year data, investors can gain valuable insights into the historical performance and volatility of ALT shares. From significant milestones and fluctuations to notable trends, this in-depth examination of Altimmune Inc stock price history provides a foundation for understanding how the company's stock has evolved over time.
Altimmune Inc Stock (ALT) Price History 2026
| Month | High | Low | High - Low | Volume | % Change |
|---|---|---|---|---|---|
| Oct, 2026 | $2.85 | $2.17 | $0.68 | 49,180,730.0 | -23.08% |
| Sep, 2026 | $3.55 | $2.86 | $0.6899 | 82,251,033.0 | -8.04% |
| Aug, 2026 | $3.25 | $2.84 | $0.41 | 92,485,383.0 | +9.51% |
| Jul, 2026 | $3.40 | $2.75 | $0.65 | 93,964,723.0 | -6.58% |
| Jun, 2026 | $3.14 | $2.57 | $0.5698 | 91,345,618.0 | -0.33% |
| May, 2026 | $3.26 | $2.56 | $0.70 | 62,135,542.0 | +17.31% |
| Apr, 2026 | $3.64 | $2.58 | $1.06 | 100,605,715.0 | -15.58% |
| Mar, 2026 | $4.35 | $2.87 | $1.48 | 84,334,868.0 | -28.54% |
| Feb, 2026 | $5.75 | $4.27 | $1.48 | 59,963,933.0 | -23.04% |
| Jan, 2026 | $6.44 | $3.48 | $2.96 | 132,171,829.0 | +55.12% |
Altimmune Inc Stock (ALT) Price History 2025
| Month | High | Low | High - Low | Volume | % Change |
|---|---|---|---|---|---|
| Dec, 2025 | $6.03 | $3.60 | $2.43 | 98,184,980.0 | -31.37% |
| Nov, 2025 | $5.33 | $3.73 | $1.60 | 62,494,988.0 | +29.88% |
| Oct, 2025 | $4.25 | $3.75 | $0.50 | 62,831,546.0 | +7.43% |
| Sep, 2025 | $4.19 | $3.54 | $0.655 | 52,281,687.0 | -1.57% |
| Aug, 2025 | $3.91 | $3.33 | $0.5722 | 61,814,144.0 | +3.79% |
| Jul, 2025 | $5.03 | $3.58 | $1.45 | 100,131,743.0 | -4.65% |
| Jun, 2025 | $7.73 | $2.90 | $4.83 | 201,708,843.0 | -28.73% |
| May, 2025 | $6.13 | $4.95 | $1.18 | 50,988,567.0 | +3.43% |
| Apr, 2025 | $5.30 | $3.55 | $1.74 | 44,078,019.0 | +5.00% |
| Mar, 2025 | $6.71 | $4.78 | $1.93 | 60,710,374.0 | -24.81% |
| Feb, 2025 | $7.17 | $5.80 | $1.37 | 41,999,740.0 | +0.15% |
| Jan, 2025 | $7.83 | $6.19 | $1.64 | 44,506,948.0 | -7.91% |
Altimmune Inc Stock (ALT) Price History 2024
| Month | High | Low | High - Low | Volume | % Change |
|---|---|---|---|---|---|
| Dec, 2024 | $10.88 | $7.17 | $3.71 | 66,344,075.0 | -14.59% |
| Nov, 2024 | $11.16 | $6.45 | $4.71 | 84,154,201.0 | +27.15% |
| Oct, 2024 | $7.58 | $5.86 | $1.71 | 40,027,820.0 | +9.77% |
| Sep, 2024 | $8.25 | $5.99 | $2.26 | 48,605,898.0 | -8.36% |
| Aug, 2024 | $7.66 | $5.28 | $2.38 | 51,963,035.0 | +5.35% |
| Jul, 2024 | $8.26 | $6.09 | $2.17 | 61,068,563.0 | -4.36% |
| Jun, 2024 | $8.49 | $5.64 | $2.85 | 95,472,898.0 | -11.45% |
| May, 2024 | $9.50 | $6.55 | $2.95 | 61,019,047.0 | +14.66% |
| Apr, 2024 | $11.01 | $6.28 | $4.73 | 68,099,449.0 | -35.66% |
| Mar, 2024 | $12.68 | $7.92 | $4.76 | 94,235,014.0 | -15.87% |
| Feb, 2024 | $14.84 | $8.02 | $6.82 | 125,857,948.0 | +28.18% |
| Jan, 2024 | $12.99 | $8.66 | $4.33 | 148,490,024.0 | -16.09% |
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