TipRanks
Prothena (PRTA)
NASDAQ:PRTA
US Market
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Prothena (PRTA) Historical Prices

687 Followers
Time Period
1Y
Events
Historical Prices
Historical Prices
Rows:
50
Date
Open
High
Low
Close
Adj Close
% Change
Volume
Relative Volume
Oct 30, 2026
8.79
8.90
8.35
8.47
8.47
-4.62%
452,298
0.98
Oct 29, 2026
9.10
9.26
8.75
8.88
8.88
-2.42%
370,067
0.79
Oct 28, 2026
8.64
9.22
8.61
9.10
9.10
+3.29%
751,944
1.63
Oct 27, 2026
8.40
8.85
8.35
8.81
8.81
+4.88%
654,349
1.42
Oct 26, 2026
8.34
8.49
8.21
8.40
8.40
+2.44%
594,543
1.29
Oct 23, 2026
8.18
8.27
7.93
8.20
8.20
-0.61%
385,915
0.83
Oct 22, 2026
8.01
8.29
7.96
8.25
8.25
+2.74%
381,828
0.81
Oct 21, 2026
8.47
8.54
8.01
8.03
8.03
-5.53%
461,394
0.97
Oct 20, 2026
8.55
8.65
8.45
8.50
8.50
+0.24%
529,034
1.12
Oct 19, 2026
8.39
8.57
8.31
8.48
8.48
+1.56%
361,120
0.76
Oct 16, 2026
8.58
8.62
8.24
8.35
8.35
-1.76%
670,256
1.41
Oct 15, 2026
8.54
8.65
8.44
8.50
8.50
+1.55%
358,380
0.75
Oct 14, 2026
8.28
8.56
8.19
8.37
8.37
+0.12%
620,027
1.30
Oct 13, 2026
8.45
8.55
8.20
8.36
8.36
-0.83%
573,312
1.20
Oct 12, 2026
8.81
8.81
8.40
8.43
8.43
-4.64%
489,760
1.02
Oct 09, 2026
8.57
9.31
8.50
8.84
8.84
+2.67%
931,625
1.97
Oct 08, 2026
8.43
8.81
8.36
8.61
8.61
+1.53%
642,408
1.36
Oct 07, 2026
7.93
8.63
7.88
8.48
8.48
+5.74%
690,412
1.47
Oct 06, 2026
8.28
8.28
7.80
8.02
8.02
-3.02%
510,608
1.08
Oct 05, 2026
8.34
8.37
7.91
8.27
8.27
-1.08%
714,460
1.53
Oct 02, 2026
8.62
8.62
8.35
8.36
8.36
-2.11%
675,839
1.46
Oct 01, 2026
8.54
8.58
8.35
8.54
8.54
+1.91%
457,083
0.99
Sep 30, 2026
8.98
8.99
8.37
8.38
8.38
-4.56%
634,780
1.40
Sep 29, 2026
8.66
8.80
8.59
8.78
8.78
+0.69%
602,979
1.34
Sep 28, 2026
8.25
8.86
8.07
8.72
8.72
+5.19%
488,859
1.09
Sep 25, 2026
8.38
8.52
8.19
8.29
8.29
-0.36%
481,048
1.07
Sep 24, 2026
8.63
8.73
8.28
8.32
8.32
-4.15%
426,063
0.95
Sep 23, 2026
8.94
8.97
8.67
8.68
8.68
-3.45%
357,843
0.76
Sep 22, 2026
8.72
9.09
8.70
8.99
8.99
+5.64%
445,500
0.93
Sep 21, 2026
8.59
8.80
8.46
8.51
8.51
-0.82%
363,158
0.75
Sep 18, 2026
8.41
8.60
8.25
8.58
8.58
+1.42%
1,830,892
3.98
Sep 17, 2026
8.39
8.56
8.23
8.46
8.46
+2.67%
404,757
0.87
Sep 16, 2026
8.35
8.50
8.20
8.24
8.24
-1.08%
398,337
0.83
Sep 15, 2026
8.86
8.86
8.30
8.33
8.33
-5.98%
323,438
0.67
Sep 14, 2026
8.95
8.99
8.79
8.86
8.86
-0.78%
374,872
0.77
Sep 11, 2026
9.06
9.14
8.77
8.93
8.93
-1.00%
376,275
0.77
Sep 10, 2026
9.25
9.26
8.97
9.02
9.02
-3.01%
310,912
0.63
Sep 09, 2026
9.40
9.50
9.22
9.30
9.30
-2.52%
294,558
0.59
Sep 08, 2026
9.60
9.67
9.35
9.54
9.54
-2.85%
305,440
0.61
Sep 07, 2026
9.50
9.87
9.48
9.82
9.82
0.00%
0
0.00
Sep 04, 2026
9.50
9.87
9.48
9.82
9.82
+2.29%
383,928
0.76
Sep 03, 2026
9.77
9.78
9.51
9.60
9.60
-0.88%
275,198
0.54
Sep 02, 2026
9.64
9.75
9.37
9.69
9.69
+0.78%
341,055
0.66
Sep 01, 2026
9.28
9.63
9.26
9.61
9.61
+2.78%
267,669
0.52
Aug 31, 2026
9.26
9.40
9.10
9.35
9.35
+0.21%
335,149
0.64
Aug 28, 2026
9.02
9.48
8.95
9.33
9.33
+2.64%
498,115
0.96
Aug 27, 2026
9.16
9.24
8.95
9.09
9.09
-1.73%
338,921
0.65
Aug 26, 2026
9.40
9.40
9.15
9.25
9.25
-1.80%
289,040
0.55
Aug 25, 2026
9.51
9.82
9.42
9.42
9.42
+0.32%
363,694
0.69
Aug 24, 2026
9.46
9.49
9.19
9.39
9.39
-0.63%
248,124
0.46
Rows:
50