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Prothena Corporation plc (PRTA)
NASDAQ: PRTA · Real-Time Price · USD
11.07
-0.09 (-0.81%)
At close: Dec 5, 2025, 4:00 PM EST
11.00
-0.07 (-0.63%)
After-hours: Dec 5, 2025, 6:34 PM EST

Prothena Corporation Stock Price History

Historical Data

DateOpenHighLowCloseAdj. CloseChangeVolume
Dec 5, 202511.1811.4810.9811.0711.07-0.81%434,643
Dec 4, 202511.0411.5710.9511.1611.16-0.09%1,161,191
Dec 3, 202510.4011.4810.3111.1711.177.92%777,365
Dec 2, 202510.2910.5310.1410.3510.350.78%615,114
Dec 1, 202510.9811.1310.2210.2710.27-4.47%648,494
Nov 28, 202510.5210.8310.4610.7510.753.07%288,706
Nov 26, 202510.4810.5910.3710.4310.43-0.67%451,418
Nov 25, 202510.5010.6210.3010.5010.500.96%515,553
Nov 24, 202510.5510.9110.2910.4010.40-0.76%776,168
Nov 21, 202510.0210.699.9010.4810.484.28%461,186
Nov 20, 202510.1210.519.9910.0510.050.60%457,850
Nov 19, 202510.2910.499.979.999.99-3.57%479,680
Nov 18, 202510.1810.429.9610.3610.361.07%427,945
Nov 17, 20259.9410.329.7510.2510.253.22%827,245
Nov 14, 202510.0410.339.939.939.93-2.46%504,462
Nov 13, 202510.8310.8310.1210.1810.18-6.18%679,641
Nov 12, 202510.3610.9010.2210.8510.853.53%686,417
Nov 11, 202510.3910.7510.1410.4810.48-0.47%603,643
Nov 10, 202510.9011.0910.4710.5310.53-0.28%694,728
Nov 7, 202510.4910.969.7210.5610.564.76%928,366
Nov 6, 202510.3010.5010.0210.0810.08-1.85%557,222
Nov 5, 202510.1710.4510.0010.2710.270.10%535,313
Nov 4, 202510.4010.5610.1610.2610.26-2.66%600,351
Nov 3, 202510.7611.1710.4110.5410.54-1.95%612,476
Oct 31, 202510.5410.7910.4010.7510.752.58%479,954
Oct 30, 202510.6310.8210.3510.4810.48-1.60%381,487
Oct 29, 202510.6010.8010.3410.6510.651.04%596,013
Oct 28, 202511.1411.6910.4010.5410.541.64%969,343
Oct 27, 20259.9810.409.9510.3710.375.60%405,387
Oct 24, 20259.8010.029.719.829.820.72%362,606
Oct 23, 20259.889.979.729.759.75-1.32%349,011
Oct 22, 202510.2210.359.729.889.88-3.28%429,435
Oct 21, 202510.3710.6110.1810.2210.22-1.49%289,885
Oct 20, 202510.0510.559.9610.3710.374.54%558,918
Oct 17, 20259.9910.239.619.929.92-1.68%777,390
Oct 16, 202510.7610.9010.0310.0910.09-5.35%624,880
Oct 15, 202510.1210.7210.1210.6610.665.34%801,962
Oct 14, 202510.3210.3210.0310.1210.12-2.22%392,072
Oct 13, 202510.0310.3510.0010.3510.352.99%703,194
Oct 10, 202510.3410.459.9810.0510.05-2.43%734,065
Oct 9, 202510.4310.6510.2810.3010.30-0.48%801,307
Oct 8, 202510.2710.5410.1310.3510.351.77%650,937
Oct 7, 202510.1210.379.9210.1710.173.14%1,033,872
Oct 6, 202510.0010.099.779.869.86-0.60%343,503
Oct 3, 202510.0210.169.589.929.92-0.70%852,906
Oct 2, 20259.9510.229.859.999.990.71%767,564
Oct 1, 20259.7910.469.789.929.921.64%965,862
Sep 30, 20259.739.859.509.769.76-989,151
Sep 29, 20259.439.829.219.769.763.72%946,535
Sep 26, 20259.299.469.029.419.410.53%715,256
Sep 25, 20259.209.569.049.369.360.43%1,566,775
Sep 24, 20258.329.348.309.329.3212.15%1,116,744
Sep 23, 20258.288.358.148.318.310.24%404,696
Sep 22, 20258.128.438.028.298.292.73%511,942
Sep 19, 20258.208.238.078.078.07-1.34%910,686
Sep 18, 20258.188.358.058.188.181.49%459,057
Sep 17, 20258.198.398.048.068.06-1.23%507,619
Sep 16, 20258.128.368.128.168.16-362,452
Sep 15, 20258.188.358.108.168.16-0.61%713,691
Sep 12, 20258.438.498.208.218.21-2.61%551,060
Sep 11, 20258.248.508.198.438.431.51%711,934
Sep 10, 20258.348.478.208.318.31-0.42%518,651
Sep 9, 20258.508.508.108.348.34-1.77%916,203
Sep 8, 20258.618.628.308.498.49-0.70%622,009
Sep 5, 20258.248.598.218.558.554.14%1,128,164
Sep 4, 20258.458.468.118.218.21-2.15%961,597
Sep 3, 20258.248.478.168.398.391.45%1,210,436
Sep 2, 20258.178.438.068.278.270.85%1,048,928
Aug 29, 20258.278.348.088.208.20-0.49%903,119
Aug 28, 20258.228.588.058.248.24-3.74%1,711,298
Aug 27, 20258.368.738.358.568.562.51%1,021,264
Aug 26, 20258.358.568.308.358.35-0.36%1,653,408
Aug 25, 20258.768.798.358.388.38-4.45%613,157
Aug 22, 20258.638.978.528.778.772.45%1,244,739
Aug 21, 20258.418.578.328.568.560.47%858,008
Aug 20, 20258.508.608.288.528.52-639,174
Aug 19, 20258.518.708.358.528.52-0.12%829,930
Aug 18, 20258.368.668.308.538.533.39%1,164,541
Aug 15, 20258.118.348.008.258.252.36%1,130,318
Aug 14, 20258.028.127.788.068.060.12%590,370
Aug 13, 20257.608.177.588.058.056.76%1,598,596
Aug 12, 20257.777.967.507.547.54-1.69%926,650
Aug 11, 20257.707.857.397.677.67-0.26%1,147,187
Aug 8, 20257.747.947.647.697.69-0.39%921,633
Aug 7, 20257.987.987.527.727.72-2.53%1,092,136
Aug 6, 20257.528.017.287.927.9212.66%3,107,286
Aug 5, 20257.037.546.737.037.031.30%1,565,289
Aug 4, 20256.856.996.706.946.941.91%957,884
Aug 1, 20256.806.876.616.816.81-0.87%859,928
Jul 31, 20256.917.236.836.876.87-0.15%994,942
Jul 30, 20257.007.336.746.886.88-0.72%1,240,795
Jul 29, 20256.897.106.806.936.930.87%724,885
Jul 28, 20256.716.896.636.876.872.84%804,766
Jul 25, 20256.756.866.586.686.68-0.30%772,127
Jul 24, 20256.726.766.546.706.70-0.89%735,590
Jul 23, 20256.546.946.516.766.763.52%899,115
Jul 22, 20256.316.596.296.536.533.82%722,348
Jul 21, 20256.276.526.246.296.290.48%686,670
Jul 18, 20256.546.626.256.266.26-3.25%788,843
Jul 17, 20256.366.606.326.476.472.37%743,450