ALT
ALTIMMUNE (ALT)
NASDAQ
$3.11-$0.005 (-0.16%)
Price as of Aug 21, 2026 7:52 PM EDT
  • $605.0M
    Market Cap
  • -12.15%
    1-Year Change
  • Biotechnology
    Industry
  • 1 Month
    +10.28%
    Low Price$2.77
    High Price$3.12
  • 3 Months
    +6.14%
    Low Price$2.59
    High Price$3.16
  • 1 Year
    -12.15%
    Low Price$2.59
    High Price$6.18
Date
Open
High
Low
Close
Change (%)
Volume
08/21/2026
2.98
3.24
2.95
3.11
+5.42%
6,157,414
08/20/2026
3.07
3.08
2.92
2.95
-5.45%
4,681,380
08/19/2026
3.04
3.20
3.01
3.12
+5.05%
10,824,068
08/18/2026
2.99
3.03
2.96
2.97
-1.00%
2,472,114
08/17/2026
2.94
3.02
2.90
3.00
+2.04%
4,056,884
08/14/2026
2.95
2.97
2.86
2.94
+2.08%
3,073,969
08/13/2026
2.95
2.96
2.84
2.88
-1.71%
4,108,985
08/12/2026
3.05
3.20
2.92
2.93
-2.33%
6,045,805
08/12/2026
-$0.12 Earnings
08/11/2026
3.06
3.08
2.98
3.00
-1.64%
3,634,624
08/10/2026
3.09
3.10
2.99
3.05
-0.97%
5,260,453
08/07/2026
3.05
3.10
3.00
3.08
+2.33%
4,505,570
08/06/2026
3.03
3.05
2.95
3.01
-0.66%
3,977,253
08/05/2026
3.07
3.12
3.01
3.03
-1.30%
3,163,967
08/04/2026
3.01
3.08
2.95
3.07
+2.33%
8,162,984
08/03/2026
2.88
3.03
2.86
3.00
+5.63%
4,647,347
07/31/2026
2.99
2.99
2.78
2.84
-4.70%
3,892,079
07/30/2026
2.93
3.01
2.86
2.98
+2.05%
5,439,362
07/29/2026
3.00
3.10
2.90
2.92
-2.34%
8,301,360
07/28/2026
3.16
3.31
2.82
2.99
+1.01%
17,142,614
07/27/2026
2.80
3.03
2.80
2.96
+6.86%
4,060,013
07/24/2026
2.85
2.89
2.76
2.77
-2.46%
1,911,556
07/23/2026
2.79
2.84
2.75
2.84
+1.07%
1,625,839
07/22/2026
2.81
2.87
2.77
2.81
-0.35%
2,290,537
07/21/2026
2.81
2.87
2.78
2.82
+0.36%
1,984,647
07/20/2026
2.89
2.91
2.79
2.81
-2.09%
2,614,486
07/17/2026
2.79
2.95
2.77
2.87
+0.70%
2,963,768
07/16/2026
2.96
2.97
2.81
2.85
-4.36%
2,995,414
07/15/2026
2.94
3.00
2.89
2.98
+1.71%
2,862,398
07/14/2026
2.98
3.02
2.90
2.93
-2.01%
3,247,927
07/13/2026
3.01
3.02
2.92
2.99
-1.97%
2,457,098
07/10/2026
3.12
3.14
2.95
3.05
-2.24%
2,992,854
07/09/2026
3.11
3.15
3.04
3.12
+0.32%
2,876,992
07/08/2026
2.94
3.11
2.93
3.11
+2.98%
3,520,253
07/07/2026
3.08
3.12
2.96
3.02
-1.95%
4,619,754
07/06/2026
3.25
3.30
3.08
3.08
-2.53%
4,348,091
07/02/2026
3.18
3.26
3.10
3.16
+0.32%
4,077,524
07/01/2026
3.02
3.40
3.00
3.15
+3.62%
7,975,966
06/30/2026
2.95
3.14
2.91
3.04
+3.40%
4,332,464
06/29/2026
2.85
2.94
2.79
2.94
+4.26%
3,638,518
06/26/2026
2.85
2.90
2.74
2.82
-1.74%
17,105,420
06/25/2026
2.96
3.00
2.86
2.87
-2.71%
2,782,884
06/24/2026
2.92
3.04
2.92
2.95
+1.37%
3,494,053
06/23/2026
2.88
3.04
2.88
2.91
-0.68%
4,223,911
06/22/2026
2.84
3.05
2.83
2.93
+8.52%
5,776,510
06/18/2026
2.68
2.77
2.68
2.70
+2.27%
11,688,234
06/17/2026
2.65
2.71
2.62
2.64
+0.76%
3,570,898
06/16/2026
2.64
2.68
2.60
2.62
-0.76%
2,907,175
06/15/2026
2.62
2.68
2.58
2.64
+1.15%
3,516,863
06/12/2026
2.61
2.66
2.58
2.61
+0.77%
2,145,403
06/11/2026
2.62
2.65
2.57
2.59
-0.77%
3,425,331
06/10/2026
2.62
2.71
2.61
2.61
-1.88%
3,042,390
06/09/2026
2.77
2.80
2.62
2.66
-2.56%
3,352,798
06/08/2026
2.75
2.78
2.68
2.73
+0.74%
2,172,837
06/05/2026
2.92
2.92
2.69
2.71
-7.19%
3,129,223
06/04/2026
2.84
3.00
2.84
2.92
+1.74%
2,818,707
06/03/2026
2.93
2.95
2.84
2.87
-1.03%
3,011,941
06/02/2026
2.99
3.00
2.90
2.90
-3.65%
3,144,481
06/01/2026
3.02
3.05
2.93
3.01
-1.31%
2,294,436
05/29/2026
3.07
3.10
3.02
3.05
-0.65%
2,596,555
05/28/2026
2.98
3.13
2.98
3.07
+3.02%
3,932,808
05/27/2026
2.99
3.03
2.96
2.98
+1.71%
2,597,333
05/26/2026
2.90
3.00
2.89
2.93
+1.03%
2,154,009
05/22/2026
2.94
3.00
2.88
2.90
-1.02%
1,989,306
05/21/2026
2.80
2.93
2.77
2.93
+3.90%
3,062,637
05/20/2026
2.75
2.85
2.73
2.82
+2.92%
2,229,240
05/19/2026
2.80
2.84
2.73
2.74
-2.14%
2,514,293
05/18/2026
2.85
2.89
2.72
2.80
-1.75%
3,462,113
05/15/2026
2.90
2.94
2.81
2.85
-2.40%
2,286,710
05/14/2026
3.01
3.03
2.90
2.92
-3.31%
2,388,445
05/13/2026
2.98
3.04
2.89
3.02
-1.95%
3,584,637
05/13/2026
-$0.18 Earnings
05/12/2026
3.08
3.11
3.01
3.08
-0.32%
2,436,619
05/11/2026
3.09
3.22
3.06
3.09
0.00%
2,937,164
05/08/2026
3.07
3.11
3.01
3.09
+1.64%
2,858,248
05/07/2026
3.22
3.24
3.00
3.04
-6.75%
3,720,531
05/06/2026
3.06
3.26
3.04
3.26
+6.54%
4,096,720
05/05/2026
3.08
3.15
3.00
3.06
+1.32%
3,470,414
05/04/2026
2.84
3.04
2.84
3.02
+7.09%
5,175,677
05/01/2026
2.59
2.82
2.56
2.82
+8.46%
4,956,786
04/30/2026
2.66
2.68
2.58
2.60
-1.14%
5,675,474
04/29/2026
2.71
2.73
2.60
2.63
-4.01%
4,857,131
04/28/2026
2.78
2.85
2.72
2.74
-2.14%
4,870,640
04/27/2026
2.86
2.91
2.75
2.80
-1.75%
5,891,828
04/24/2026
2.95
3.01
2.82
2.85
-1.38%
14,733,746
04/23/2026
3.08
3.16
2.80
2.89
-16.71%
30,489,038
04/22/2026
3.45
3.51
3.42
3.47
+1.76%
2,948,086
04/21/2026
3.56
3.64
3.39
3.41
-4.21%
3,250,825
04/20/2026
3.45
3.58
3.39
3.56
+1.71%
2,161,683
04/17/2026
3.55
3.60
3.42
3.50
-0.28%
2,868,797
04/16/2026
3.40
3.55
3.35
3.51
+3.24%
2,580,475
04/15/2026
3.33
3.42
3.29
3.40
+3.34%
2,080,063
04/14/2026
3.25
3.32
3.23
3.29
+1.86%
1,990,993
04/13/2026
3.23
3.28
3.18
3.23
-0.31%
2,122,551
04/10/2026
3.39
3.41
3.22
3.24
-4.14%
1,936,609
04/09/2026
3.35
3.44
3.31
3.38
+0.30%
1,989,237
04/08/2026
3.48
3.54
3.36
3.37
-0.30%
1,695,749
04/07/2026
3.34
3.45
3.26
3.38
+1.50%
2,039,568
04/06/2026
3.34
3.48
3.30
3.33
-0.30%
2,360,635
04/02/2026
3.10
3.35
3.07
3.34
+7.05%
2,737,035