Prothena Corporation plc (PRTA) NASDAQ

Currency In USD

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PRTA Historical Return

If you invested $1000 in Prothena Corporation plc (PRTA) 10 years ago, it would be worth $142.4 as of October 01, 2026, based on a reinvested dividends scenario. Over the same period, a $1000 investment made 5 years ago would be worth $120.3, while $1000 invested 1 year ago would be worth $857.86. This corresponds to total returns of -85.76%, -87.97%, -14.21%, respectively, with annualized returns of -17.71%, -34.51%, -14.21%.

Custom investment amounts or purchase dates can also be explored using the Stoculator calculator. Past performance does not guarantee future results.

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PRTA Historical Data

Date Range:

DateOpenCloseAdj CloseHighLowVolume
September 30, 20268.988.388.388.998.37634,322
September 29, 20268.668.788.788.88.59543,121
September 28, 20268.258.728.728.868.07488,857
September 25, 20268.388.298.298.528.19481,047
September 24, 20268.638.328.328.738.28426,061
September 23, 20268.948.688.688.978.66357,806
September 22, 20268.728.998.999.098.7388,487
September 21, 20268.598.518.518.88.48360,687
September 18, 20268.418.588.588.68.251.83M
September 17, 20268.398.468.468.568.23404,757
September 16, 20268.358.248.248.58.2398,335
September 15, 20268.868.338.338.868.3323,436
September 11, 20269.068.938.939.118.77376,273
September 10, 20269.259.029.029.268.97310,810
September 09, 20269.49.39.39.59.22294,557
September 08, 20269.69.549.549.679.35305,062
September 04, 20269.59.829.829.879.48383,926
September 03, 20269.779.69.69.789.51275,198
September 02, 20269.649.699.699.759.37341,054
September 01, 20269.289.619.619.639.26267,669
August 31, 20269.269.359.359.49.1335,149
August 28, 20269.029.339.339.488.95498,115
August 27, 20269.169.099.099.248.95338,896
August 26, 20269.49.259.259.49.15289,037
August 25, 20269.519.429.429.829.42363,694
August 24, 20269.469.399.399.499.19248,123
August 21, 20269.119.459.459.529.09376,043
August 20, 20269.139.039.039.158.71345,467
August 19, 20268.919.299.299.338.910
August 18, 20268.888.718.7198.58248,559
August 17, 20268.848.888.889.078.73365,916
August 14, 20269.048.868.869.158.84312,599
August 13, 20269.39.089.089.379.04343,056
August 12, 20269.229.269.269.39.090
August 11, 20269.129.229.229.288.860
August 10, 20268.769.129.129.178.53713,686
August 07, 20268.548.768.768.858.04481,851
August 06, 20268.58.588.588.778.33418,635
August 05, 20268.498.498.498.748.4489,490
August 04, 20268.338.498.498.588.33329,912
August 03, 20268.178.338.338.388.04565,954
July 31, 20268.418.128.128.518545,490
July 30, 20268.58.418.418.568.26495,811
July 29, 20268.458.568.568.688.39641,213
July 28, 20268.78.568.568.788.36802,244
July 27, 20268.888.78.79.138.66704,707
July 23, 20268.278.538.538.638.23532,211
July 22, 20268.698.448.448.798.43542,549
July 21, 20268.728.758.758.818.51647,643
July 20, 20268.668.678.678.858.55549,606
July 17, 20268.48.668.668.88.28397,186
July 16, 20268.48.478.478.668.07659,662
July 15, 20268.468.438.438.648.43499,869
July 14, 20268.778.648.648.888.61530,318
July 13, 20269.178.838.839.198.76781,723
July 10, 20269.649.249.249.829.03505,129
July 09, 20269.839.649.6410.029.55482,222
July 08, 20269.669.859.859.869.56444,245
July 07, 20269.629.689.689.789.33520,542
July 06, 20269.659.59.59.849.47403,737
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