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Prothena (PRTA)
NASDAQ:PRTA
Time Period
1Y
Events
Historical Prices
Rows:
Mar 06, 2026
9.24
9.64
9.24
9.59
9.59
+1.37%
651,790
1.23
Mar 05, 2026
9.70
10.06
9.36
9.46
9.46
-4.06%
509,804
0.96
Mar 04, 2026
9.36
9.96
9.36
9.86
9.86
+5.34%
543,331
1.03
Mar 03, 2026
9.09
9.62
8.95
9.36
9.36
-0.43%
553,435
1.03
Mar 02, 2026
9.09
9.62
8.97
9.40
9.40
+8.42%
811,088
1.51
Feb 27, 2026
8.53
8.79
8.48
8.67
8.67
+0.35%
439,378
0.81
Feb 26, 2026
8.88
8.96
8.63
8.64
8.64
-2.70%
355,723
0.65
Feb 25, 2026
9.00
9.11
8.53
8.88
8.88
-1.00%
490,497
0.90
Feb 24, 2026
9.03
9.30
8.75
8.97
8.97
-1.10%
448,814
0.84
Feb 23, 2026
9.00
9.34
8.81
9.07
9.07
+0.55%
465,762
0.87
Feb 20, 2026
9.38
9.59
8.20
9.02
9.02
-0.11%
786,420
1.48
Feb 19, 2026
9.06
9.20
8.80
9.03
9.03
-0.66%
349,728
0.65
Feb 18, 2026
8.81
9.23
8.81
9.09
9.09
+1.45%
307,596
0.57
Feb 17, 2026
8.96
9.21
8.80
8.96
8.96
0.00%
374,772
0.69
Feb 16, 2026
8.85
9.24
8.85
8.96
8.96
0.00%
0
0.00
Feb 13, 2026
8.85
9.24
8.85
8.96
8.96
+1.24%
308,607
0.56
Feb 12, 2026
8.93
9.04
8.72
8.85
8.85
-0.90%
351,722
0.63
Feb 11, 2026
9.01
9.09
8.65
8.93
8.93
+0.79%
271,115
0.48
Feb 10, 2026
8.81
9.12
8.77
8.96
8.96
+1.13%
329,528
0.58
Feb 09, 2026
8.90
9.04
8.59
8.86
8.86
-0.56%
356,096
0.62
Feb 06, 2026
8.58
8.99
8.56
8.91
8.91
+6.71%
581,028
1.01
Feb 05, 2026
8.86
9.05
8.23
8.35
8.35
-6.07%
518,973
0.90
Feb 04, 2026
8.77
9.04
8.48
8.89
8.89
+1.25%
451,706
0.77
Feb 03, 2026
8.90
9.05
8.61
8.78
8.78
-1.46%
280,865
0.48
Feb 02, 2026
8.79
8.95
8.39
8.91
8.91
+1.14%
556,687
0.95
Jan 30, 2026
8.98
9.07
8.65
8.81
8.81
-2.76%
389,955
0.66
Jan 29, 2026
9.15
9.50
8.95
9.06
9.06
-0.88%
362,299
0.61
Jan 28, 2026
9.69
9.78
9.10
9.14
9.14
-6.06%
422,156
0.71
Jan 27, 2026
9.92
10.09
9.68
9.73
9.73
-2.11%
393,146
0.66
Jan 26, 2026
9.94
10.26
9.77
9.94
9.94
-0.60%
470,290
0.79
Jan 23, 2026
10.30
10.53
9.99
10.00
10.00
-3.29%
659,527
1.09
Jan 22, 2026
9.68
10.35
9.67
10.34
10.34
+6.82%
512,688
0.85
Jan 21, 2026
9.28
9.72
9.24
9.68
9.68
+4.65%
591,450
0.99
Jan 20, 2026
9.12
9.55
9.00
9.25
9.25
-1.07%
630,805
1.06
Jan 19, 2026
9.29
9.45
8.94
9.35
9.35
0.00%
0
0.00
Jan 16, 2026
9.29
9.45
8.94
9.35
9.35
+0.97%
761,486
1.29
Jan 15, 2026
9.16
9.28
8.91
9.26
9.26
+0.65%
601,967
1.02
Jan 14, 2026
8.94
9.26
8.84
9.20
9.20
+2.45%
398,465
0.67
Jan 13, 2026
8.77
9.06
8.77
8.98
8.98
+0.79%
470,366
0.78
Jan 12, 2026
9.16
9.16
8.65
8.91
8.91
-3.05%
585,586
0.97
Jan 09, 2026
9.19
9.34
9.11
9.19
9.19
+1.55%
401,921
0.67
Jan 08, 2026
9.03
9.16
8.95
9.05
9.05
-0.88%
376,004
0.62
Jan 07, 2026
9.00
9.47
8.96
9.13
9.13
+1.78%
468,687
0.77
Jan 06, 2026
9.01
9.14
8.89
8.97
8.97
-1.43%
636,414
1.03
Jan 05, 2026
9.24
9.24
8.92
9.10
9.10
-1.09%
539,121
0.87
Jan 02, 2026
9.56
9.69
9.07
9.20
9.20
-3.66%
526,924
0.84
Jan 01, 2026
9.30
9.56
9.24
9.55
9.55
0.00%
0
0.00
Dec 31, 2025
9.30
9.56
9.24
9.55
9.55
+2.58%
475,140
0.75
Dec 30, 2025
9.45
9.52
9.29
9.31
9.31
-1.79%
363,451
0.57
Dec 29, 2025
9.49
9.55
9.34
9.48
9.48
-0.63%
495,901
0.76
Rows: