2.96
price up icon6.86%   0.19
after-market After Hours: 2.90 -0.06 -2.03%
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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 July 27, 2026, is $2.96.
  • 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 15,479% to $2.96 now.
  • The 52-week high stock price for ALT is $6.4399, representing a 117.56% increase from the current share price, occurred on January 23, 2026.
  • The 52-week low stock price for ALT is $2.56, indicating a -13.51% 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:
Date High Low High - Low Volume % Change
Jul 27, 2026 $3.03 $2.80 $0.23 4,057,442.0 +6.86%
Jul 24, 2026 $2.89 $2.76 $0.129 1,905,175.0 -2.46%
Jul 23, 2026 $2.84 $2.75 $0.09 1,625,736.0 +1.07%
Jul 22, 2026 $2.87 $2.77 $0.10 2,287,842.0 -0.35%
Jul 21, 2026 $2.87 $2.78 $0.09 1,982,558.0 +0.36%
Jul 20, 2026 $2.91 $2.79 $0.1199 2,609,642.0 -2.09%
Jul 17, 2026 $2.95 $2.77 $0.18 2,962,450.0 +0.70%
Jul 16, 2026 $2.97 $2.81 $0.1643 2,994,321.0 -4.36%
Jul 15, 2026 $3.00 $2.88 $0.115 2,854,389.0 +1.71%
Jul 14, 2026 $3.02 $2.90 $0.115 3,240,498.0 -2.01%
Jul 13, 2026 $3.02 $2.92 $0.10 2,446,727.0 -1.97%
Jul 10, 2026 $3.13 $2.95 $0.185 2,985,791.0 -2.24%
Jul 09, 2026 $3.15 $3.04 $0.1082 2,870,249.0 +0.32%
Jul 08, 2026 $3.11 $2.93 $0.18 3,516,943.0 +2.98%
Jul 07, 2026 $3.12 $2.96 $0.16 4,616,924.0 -1.95%
Jul 06, 2026 $3.30 $3.08 $0.22 4,335,948.0 -2.53%
Jul 02, 2026 $3.26 $3.10 $0.1595 4,039,062.0 +0.32%
Jul 01, 2026 $3.40 $3.00 $0.40 7,970,698.0 +3.62%
Jun 30, 2026 $3.14 $2.91 $0.226 4,328,802.0 +3.40%

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
Jul, 2026 $3.40 $2.75 $0.65 63,359,837.0 -2.63%
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%
$91.09
price up icon 1.97%
$118.87
price up icon 1.02%
$34.72
price down icon 0.83%
$58.73
price down icon 0.17%
ONC ONC
$325.90
price up icon 0.00%
$278.40
price up icon 2.44%
Cap:     |  Volume (24h):