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3.06
0.66%
0.02
After Hours:
3.07
0.010
+0.33%
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Altimmune Inc Stock (ALT) Price History
The historical daily chart and data for Altimmune Inc stock (ALT), adjusted for splits and dividends, show that the latest closing stock price as of September 25, 2026, is $3.06.
- 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 16,005% to $3.06 now.
- The 52-week high stock price for ALT is $6.4399, representing a 110.45% increase from the current share price, occurred on January 23, 2026.
- The 52-week low stock price for ALT is $2.56, indicating a -16.34% decrease from the current share price, occurred on May 01, 2026.
- The closing price of Altimmune Inc (ALT) stock in the beginning of 2025 was $9.43. The stock closed the year at $16.45, a gain of over 74.44% 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 |
|---|---|---|---|---|---|
| Sep 25, 2026 | $3.11 | $3.00 | $0.11 | 2,857,830.0 | +0.66% |
| Sep 24, 2026 | $3.20 | $2.98 | $0.22 | 3,665,849.0 | -4.70% |
| Sep 23, 2026 | $3.42 | $3.15 | $0.275 | 4,512,938.0 | -6.45% |
| Sep 22, 2026 | $3.41 | $3.25 | $0.16 | 3,982,851.0 | +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% |
| Sep 17, 2026 | $3.35 | $3.21 | $0.14 | 3,456,491.0 | +0.00% |
| Sep 16, 2026 | $3.29 | $3.19 | $0.095 | 3,327,617.0 | +0.31% |
| Sep 15, 2026 | $3.31 | $3.21 | $0.10 | 2,333,570.0 | -2.12% |
| Sep 14, 2026 | $3.36 | $3.27 | $0.09 | 2,459,934.0 | +0.92% |
| Sep 11, 2026 | $3.41 | $3.26 | $0.15 | 2,678,314.0 | -0.61% |
| Sep 10, 2026 | $3.35 | $3.25 | $0.095 | 2,542,676.0 | -1.79% |
| Sep 09, 2026 | $3.42 | $3.29 | $0.134 | 3,067,778.0 | -0.30% |
| Sep 08, 2026 | $3.55 | $3.34 | $0.2099 | 3,586,682.0 | -1.75% |
| Sep 04, 2026 | $3.43 | $3.25 | $0.18 | 4,851,466.0 | +5.88% |
| Sep 03, 2026 | $3.32 | $3.19 | $0.13 | 2,549,684.0 | -1.52% |
| Sep 02, 2026 | $3.34 | $3.10 | $0.24 | 7,467,489.0 | +6.15% |
| Sep 01, 2026 | $3.10 | $3.02 | $0.075 | 2,335,736.0 | -0.64% |
| Aug 31, 2026 | $3.13 | $3.06 | $0.075 | 2,215,531.0 | +0.00% |
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 |
|---|---|---|---|---|---|
| Sep, 2026 | $3.55 | $2.98 | $0.5699 | 74,226,592.0 | -1.61% |
| 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% |
3.06%
2.55%
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