ATRA
ATARA BIOTHER (ATRA)
NASDAQ
$9.35+$0.004 (+0.04%)
Price as of Oct 22, 2026 7:30 PM EDT
  • $93.9M
    Market Cap
  • -36.09%
    1-Year Change
  • Biotechnology
    Industry
  • 1 Month
    -0.32%
    Low Price$8.05
    High Price$9.75
  • 3 Months
    +8.34%
    Low Price$7.71
    High Price$10.23
  • 1 Year
    -36.09%
    Low Price$4.18
    High Price$18.09
Date
Open
High
Low
Close
Change (%)
Volume
10/21/2026
9.25
9.43
9.17
9.35
+2.07%
26,543
10/20/2026
8.89
9.29
8.88
9.16
+2.23%
14,845
10/19/2026
9.03
9.35
8.96
8.96
-2.40%
12,450
10/16/2026
9.67
9.91
9.18
9.18
-4.87%
19,493
10/15/2026
9.35
9.78
9.19
9.65
+0.94%
24,451
10/14/2026
9.29
9.99
9.20
9.56
+2.74%
39,955
10/13/2026
9.25
9.54
8.80
9.31
-0.80%
32,286
10/12/2026
9.42
9.58
8.99
9.38
-1.05%
26,836
10/09/2026
9.33
9.56
9.33
9.48
+2.71%
22,148
10/08/2026
9.42
9.42
8.82
9.23
-1.49%
28,942
10/07/2026
9.62
9.75
9.37
9.37
-3.90%
11,449
10/06/2026
9.41
9.79
9.05
9.75
+3.72%
47,598
10/05/2026
9.59
9.63
8.95
9.40
-0.84%
39,318
10/02/2026
8.46
9.68
8.25
9.48
+12.06%
85,751
10/01/2026
8.73
9.20
8.23
8.46
-0.47%
90,928
09/30/2026
8.08
8.71
7.83
8.50
+5.59%
29,301
09/29/2026
8.33
8.82
7.89
8.05
-3.82%
56,450
09/28/2026
8.69
8.71
8.34
8.37
-4.99%
23,528
09/25/2026
8.60
8.99
8.54
8.81
+3.16%
31,197
09/24/2026
8.60
8.86
8.33
8.54
-0.23%
20,777
09/23/2026
8.92
8.95
8.40
8.56
-4.14%
40,473
09/22/2026
9.30
9.60
8.93
8.93
-4.80%
27,265
09/21/2026
9.69
9.92
9.30
9.38
-3.20%
29,670
09/18/2026
9.73
10.19
9.60
9.69
-0.21%
37,766
09/17/2026
10.28
10.28
9.41
9.71
-3.96%
26,421
09/16/2026
9.50
10.37
9.07
10.11
+7.10%
116,745
09/15/2026
9.21
9.88
8.92
9.44
+2.05%
56,062
09/14/2026
9.09
9.71
9.07
9.25
-1.39%
50,848
09/11/2026
10.00
10.00
9.38
9.38
-5.16%
16,034
09/10/2026
9.94
9.94
9.52
9.89
-0.20%
23,205
09/09/2026
10.27
10.43
9.76
9.91
-3.13%
68,510
09/08/2026
10.60
11.33
10.23
10.23
+4.82%
106,928
09/04/2026
9.45
9.95
9.25
9.76
+2.41%
135,655
09/03/2026
9.49
9.53
9.00
9.53
+0.95%
25,276
09/02/2026
9.08
9.48
9.08
9.44
+4.66%
20,898
09/01/2026
8.96
9.18
8.80
9.02
+1.35%
51,945
08/31/2026
9.09
9.29
8.83
8.90
-3.26%
30,242
08/28/2026
9.18
9.21
8.90
9.20
-0.54%
15,345
08/27/2026
9.38
9.60
9.17
9.25
-1.39%
26,950
08/26/2026
9.65
9.84
9.38
9.38
-4.67%
63,749
08/25/2026
9.57
10.02
9.54
9.84
+4.02%
48,513
08/24/2026
9.57
9.66
9.31
9.46
-2.47%
23,967
08/21/2026
9.46
9.89
9.15
9.70
+3.41%
27,086
08/20/2026
9.60
9.74
9.14
9.38
-2.29%
28,020
08/19/2026
8.85
9.74
8.28
9.60
+10.09%
79,151
08/18/2026
8.34
8.90
8.34
8.72
+4.31%
29,500
08/17/2026
8.00
8.48
7.81
8.36
+3.34%
66,103
08/14/2026
8.51
8.51
7.99
8.09
-4.94%
66,248
08/13/2026
8.34
9.24
7.73
8.51
-7.75%
126,517
08/12/2026
8.88
9.43
8.70
9.23
+3.19%
89,999
08/12/2026
-$0.32 Earnings
08/11/2026
8.62
9.04
8.36
8.94
+3.83%
29,246
08/10/2026
8.42
8.80
8.09
8.61
+1.89%
45,333
08/07/2026
8.30
8.49
8.20
8.45
+2.42%
23,213
08/06/2026
8.60
8.65
8.09
8.25
-3.40%
22,856
08/05/2026
8.60
8.98
8.38
8.54
-2.62%
32,523
08/04/2026
8.55
9.11
8.55
8.77
+2.57%
42,283
08/03/2026
8.42
8.66
8.26
8.55
+2.03%
53,235
07/31/2026
8.17
8.67
7.86
8.38
+2.57%
34,502
07/30/2026
8.18
8.32
7.86
8.17
+1.36%
96,041
07/29/2026
7.74
8.25
7.57
8.06
+3.20%
39,848
07/28/2026
7.76
7.91
7.39
7.81
+1.30%
85,370
07/27/2026
8.06
8.33
7.65
7.71
-2.41%
62,723
07/24/2026
8.19
8.38
7.84
7.90
-3.30%
75,238
07/23/2026
7.92
8.36
7.81
8.17
+0.55%
46,521
07/22/2026
8.61
8.61
8.02
8.13
-5.85%
28,911
07/21/2026
8.37
8.68
8.07
8.63
+4.10%
48,423
07/20/2026
8.29
8.83
8.09
8.29
-1.19%
59,242
07/17/2026
8.24
8.82
8.10
8.39
-3.78%
81,341
07/16/2026
8.68
8.83
8.38
8.72
+1.99%
40,116
07/15/2026
8.04
8.59
8.04
8.55
+6.34%
73,446
07/14/2026
8.59
8.81
7.91
8.04
-7.27%
201,191
07/13/2026
9.61
9.61
8.56
8.67
-11.17%
136,344
07/10/2026
10.06
10.06
9.36
9.76
-1.86%
66,882
07/09/2026
9.59
10.15
9.48
9.95
+3.06%
49,368
07/08/2026
10.04
10.38
9.50
9.65
-5.95%
206,761
07/07/2026
10.96
10.99
10.26
10.26
-5.70%
49,325
07/06/2026
11.67
11.86
10.75
10.88
-6.61%
80,383
07/02/2026
11.50
12.00
11.41
11.65
+2.46%
33,264
07/01/2026
11.47
11.86
11.11
11.37
-0.96%
35,510
06/30/2026
11.11
11.63
11.01
11.48
+2.78%
106,868
06/29/2026
10.60
11.18
10.47
11.17
+6.28%
59,831
06/26/2026
10.20
10.71
10.15
10.51
+2.84%
45,295
06/25/2026
10.58
11.21
10.13
10.22
-3.13%
67,562
06/24/2026
11.12
11.12
10.46
10.55
-5.47%
49,755
06/23/2026
10.43
11.55
10.43
11.16
+5.18%
105,123
06/22/2026
9.93
10.71
9.66
10.61
+5.36%
95,158
06/18/2026
9.89
10.32
9.57
10.07
+4.14%
144,866
06/17/2026
9.73
10.10
9.41
9.67
+0.52%
122,163
06/16/2026
9.92
10.07
9.21
9.62
-3.41%
126,095
06/15/2026
10.50
10.92
9.85
9.96
-4.32%
80,671
06/12/2026
10.14
10.99
10.14
10.41
-0.48%
95,599
06/11/2026
9.89
10.49
9.89
10.46
+6.09%
43,153
06/10/2026
9.70
10.23
9.49
9.86
+0.92%
56,357
06/09/2026
9.58
10.15
9.42
9.77
+1.98%
65,956
06/08/2026
10.15
10.15
9.52
9.58
-3.43%
113,217
06/05/2026
10.18
10.18
9.83
9.92
-3.41%
69,039
06/04/2026
9.54
10.45
9.54
10.27
+6.65%
94,404
06/03/2026
10.03
10.23
9.35
9.63
-2.73%
104,241
06/02/2026
10.28
10.42
9.84
9.90
-3.70%
63,128