Prothena (PRTA)
NASDAQ:PRTA
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Time Period
1Y
Events
Historical Prices
Rows:
May 22, 2026
9.36
10.00
9.36
9.83
9.83
+4.46%
510,853
1.00
May 21, 2026
9.16
9.42
9.04
9.41
9.41
+0.64%
388,741
0.76
May 20, 2026
9.09
9.41
9.09
9.35
9.35
+3.09%
624,875
1.22
May 19, 2026
9.61
9.84
9.02
9.07
9.07
-5.42%
627,307
1.24
May 18, 2026
9.66
10.09
9.53
9.59
9.59
-1.74%
650,972
1.30
May 15, 2026
9.73
9.86
9.46
9.76
9.76
-1.01%
700,063
1.41
May 14, 2026
9.60
9.88
9.42
9.86
9.86
+2.71%
452,435
0.92
May 13, 2026
9.33
9.73
9.28
9.60
9.60
+1.80%
530,784
1.09
May 12, 2026
9.67
9.82
9.29
9.43
9.43
-2.48%
495,103
1.02
May 11, 2026
10.79
10.88
9.46
9.67
9.67
-9.88%
845,931
1.78
May 08, 2026
11.00
11.80
10.62
10.73
10.73
+2.00%
798,769
1.71
May 07, 2026
11.10
11.21
10.40
10.52
10.52
-5.90%
443,144
0.95
May 06, 2026
11.19
11.30
11.02
11.18
11.18
-0.09%
333,877
0.71
May 05, 2026
10.89
11.25
10.89
11.19
11.19
+3.71%
306,816
0.65
May 04, 2026
10.58
11.00
10.55
10.79
10.79
+1.41%
592,359
1.26
May 01, 2026
11.04
11.14
10.64
10.64
10.64
-3.80%
516,354
1.10
Apr 30, 2026
10.89
11.12
10.84
11.06
11.06
+1.75%
319,520
0.68
Apr 29, 2026
11.46
11.46
10.74
10.87
10.87
-5.56%
397,581
0.84
Apr 28, 2026
10.84
11.57
10.83
11.51
11.51
+6.67%
439,891
0.94
Apr 27, 2026
10.71
11.12
10.71
10.79
10.79
+0.37%
314,337
0.67
Apr 24, 2026
10.65
10.82
10.40
10.75
10.75
+0.19%
287,930
0.61
Apr 23, 2026
10.69
11.07
10.60
10.73
10.73
+0.09%
474,683
1.00
Apr 22, 2026
10.69
10.85
10.61
10.72
10.72
+0.47%
350,784
0.73
Apr 21, 2026
10.78
10.78
10.48
10.67
10.67
-1.11%
451,072
0.94
Apr 20, 2026
10.82
10.97
10.77
10.79
10.79
-1.01%
333,298
0.69
Apr 17, 2026
10.71
10.99
10.70
10.90
10.90
+3.61%
486,483
1.00
Apr 16, 2026
10.78
10.85
10.45
10.52
10.52
-2.77%
298,913
0.62
Apr 15, 2026
10.62
10.87
10.51
10.82
10.82
+1.98%
409,927
0.84
Apr 14, 2026
10.34
10.67
10.34
10.61
10.61
+2.91%
370,945
0.76
Apr 13, 2026
10.49
10.55
10.18
10.31
10.31
-1.81%
334,063
0.68
Apr 10, 2026
10.60
10.60
10.37
10.50
10.50
-0.76%
319,034
0.65
Apr 09, 2026
10.47
10.70
10.38
10.58
10.58
-0.66%
414,710
0.84
Apr 08, 2026
10.48
10.68
10.29
10.65
10.65
+2.80%
454,454
0.92
Apr 07, 2026
9.98
10.37
9.80
10.36
10.36
+3.19%
481,374
0.98
Apr 06, 2026
9.91
10.11
9.88
10.04
10.04
+1.83%
412,513
0.83
Apr 03, 2026
9.75
10.08
9.51
9.86
9.86
0.00%
0
0.00
Apr 02, 2026
9.75
10.08
9.51
9.86
9.86
-1.69%
849,122
1.70
Apr 01, 2026
9.84
10.12
9.80
10.03
10.03
+3.19%
593,297
1.19
Mar 31, 2026
9.33
9.86
9.33
9.72
9.72
+5.08%
671,532
1.38
Mar 30, 2026
9.24
9.50
9.11
9.25
9.25
-0.11%
416,193
0.85
Mar 27, 2026
9.42
9.62
9.14
9.26
9.26
-2.73%
430,062
0.88
Mar 26, 2026
9.19
9.68
9.16
9.52
9.52
+2.26%
452,730
0.93
Mar 25, 2026
8.84
9.32
8.82
9.31
9.31
+6.64%
543,662
1.12
Mar 24, 2026
8.75
8.96
8.49
8.73
8.73
-1.02%
534,726
1.12
Mar 23, 2026
8.83
9.04
8.76
8.82
8.82
+0.80%
487,557
1.03
Mar 20, 2026
8.54
8.76
8.44
8.75
8.75
+2.46%
1,401,607
3.03
Mar 19, 2026
8.54
8.63
8.38
8.54
8.54
-0.58%
465,393
1.00
Mar 18, 2026
8.94
8.94
8.53
8.59
8.59
-4.56%
495,887
0.95
Mar 17, 2026
9.10
9.20
8.96
9.00
9.00
-1.85%
467,125
0.89
Mar 16, 2026
9.27
9.32
9.06
9.17
9.17
-0.43%
489,168
0.93
Rows: