Prothena Corp. PLC historical data
| Date | Open | High | Low | Close | Adj. close | Volume |
|---|---|---|---|---|---|---|
| 2025-08-20 | 8.470 | 8.569 | 8.380 | 8.569 | 8.569 | 2,611 |
| 2025-08-19 | 8.570 | 8.700 | 8.437 | 8.555 | 8.555 | 521 |
| 2025-08-18 | 8.580 | 8.630 | 8.310 | 8.441 | 8.441 | 13,353 |
| 2025-08-15 | 8.140 | 8.332 | 8.000 | 8.139 | 8.139 | 14,440 |
| 2025-08-14 | 8.020 | 8.020 | 7.850 | 7.955 | 7.955 | 1,380 |
| 2025-08-13 | 7.600 | 8.148 | 7.580 | 8.039 | 8.039 | 9,245 |
| 2025-08-12 | 7.800 | 7.950 | 7.560 | 7.625 | 7.625 | 18,924 |
| 2025-08-11 | 7.585 | 7.825 | 7.460 | 7.650 | 7.650 | 21,212 |
| 2025-08-08 | 7.700 | 7.870 | 7.650 | 7.869 | 7.869 | 849 |
| 2025-08-07 | 7.910 | 7.990 | 7.532 | 7.610 | 7.610 | 3,796 |
| 2025-08-06 | 7.655 | 8.000 | 7.210 | 7.813 | 7.813 | 7,703 |
| 2025-08-05 | 7.200 | 7.500 | 6.827 | 7.145 | 7.145 | 13,573 |
| 2025-08-04 | 6.850 | 6.951 | 6.750 | 6.821 | 6.821 | 4,601 |
| 2025-08-01 | 6.800 | 6.800 | 6.622 | 6.732 | 6.732 | 1,365 |
| 2025-07-31 | 6.910 | 7.093 | 6.888 | 7.060 | 7.060 | 9,318 |
| 2025-07-30 | 7.000 | 7.317 | 6.983 | 7.190 | 7.190 | 8,160 |
| 2025-07-29 | 6.890 | 7.095 | 6.760 | 7.095 | 7.095 | 3,314 |
| 2025-07-28 | 6.720 | 6.798 | 6.600 | 6.792 | 6.792 | 575 |
| 2025-07-25 | 6.700 | 6.750 | 6.591 | 6.591 | 6.591 | 47 |
| 2025-07-24 | 6.730 | 6.730 | 6.552 | 6.685 | 6.685 | 918 |
| 2025-07-23 | 6.540 | 6.808 | 6.520 | 6.728 | 6.728 | 19,633 |
| 2025-07-22 | 6.310 | 6.599 | 6.260 | 6.528 | 6.528 | 9,997 |
| 2025-07-21 | 6.270 | 6.505 | 6.270 | 6.421 | 6.421 | 8,536 |
| 2025-07-18 | 6.540 | 6.602 | 6.380 | 6.380 | 6.380 | 4,310 |
| 2025-07-17 | 6.360 | 6.569 | 6.330 | 6.545 | 6.545 | 4,847 |
| 2025-07-16 | 6.332 | 6.430 | 6.208 | 6.430 | 6.430 | 4,265 |
| 2025-07-15 | 6.490 | 6.490 | 6.189 | 6.279 | 6.279 | 3,935 |
| 2025-07-14 | 6.380 | 6.482 | 6.380 | 6.411 | 6.411 | 1,819 |
| 2025-07-11 | 6.470 | 6.470 | 6.335 | 6.381 | 6.381 | 1,475 |
| 2025-07-10 | 6.540 | 6.638 | 6.462 | 6.589 | 6.589 | 2,717 |
| 2025-07-09 | 6.540 | 6.748 | 6.540 | 6.662 | 6.662 | 1,861 |
| 2025-07-08 | 6.290 | 6.648 | 6.290 | 6.481 | 6.481 | 1,181 |
| 2025-07-07 | 6.400 | 6.400 | 6.220 | 6.328 | 6.328 | 4,355 |
| 2025-07-04 | 6.200 | 6.200 | 6.200 | 6.200 | 6.200 | 0 |
| 2025-07-03 | 6.320 | 6.408 | 6.200 | 6.200 | 6.200 | 557 |
| 2025-07-02 | 6.250 | 6.538 | 6.248 | 6.341 | 6.341 | 1,079 |
| 2025-07-01 | 6.060 | 6.488 | 5.972 | 6.362 | 6.362 | 4,323 |
| 2025-06-30 | 6.220 | 6.240 | 6.020 | 6.082 | 6.082 | 18,252 |
| 2025-06-27 | 6.250 | 6.390 | 6.120 | 6.168 | 6.168 | 10,330 |
| 2025-06-26 | 5.990 | 6.128 | 5.851 | 6.128 | 6.128 | 14,693 |
| 2025-06-25 | 6.130 | 6.140 | 5.852 | 5.981 | 5.981 | 1,179 |
| 2025-06-24 | 6.140 | 6.242 | 5.900 | 6.188 | 6.188 | 875 |
| 2025-06-23 | 5.710 | 6.320 | 5.700 | 6.170 | 6.170 | 10,533 |
| 2025-06-20 | 5.920 | 6.018 | 5.680 | 5.692 | 5.692 | 4,261 |
| 2025-06-19 | 5.910 | 5.910 | 5.910 | 5.910 | 5.910 | 0 |
| 2025-06-18 | 5.700 | 6.022 | 5.700 | 5.910 | 5.910 | 1,947 |
| 2025-06-17 | 5.610 | 6.000 | 5.540 | 5.701 | 5.701 | 3,600 |
| 2025-06-16 | 5.400 | 5.920 | 5.320 | 5.602 | 5.602 | 17,431 |
| 2025-06-13 | 4.990 | 5.118 | 4.950 | 5.031 | 5.031 | 1,412 |
| 2025-06-12 | 5.050 | 5.158 | 5.050 | 5.072 | 5.072 | 628 |
| 2025-06-11 | 5.280 | 5.378 | 5.152 | 5.228 | 5.228 | 5,010 |
| 2025-06-10 | 5.270 | 5.399 | 5.255 | 5.399 | 5.399 | 2,310 |
| 2025-06-09 | 5.500 | 5.530 | 5.050 | 5.178 | 5.178 | 11,553 |
| 2025-06-06 | 5.110 | 5.438 | 5.102 | 5.438 | 5.438 | 6,622 |
| 2025-06-05 | 4.870 | 5.198 | 4.778 | 5.052 | 5.052 | 14,028 |
| 2025-06-04 | 4.830 | 4.868 | 4.689 | 4.689 | 4.689 | 7,290 |
| 2025-06-03 | 4.660 | 4.832 | 4.560 | 4.768 | 4.768 | 11,168 |
| 2025-06-02 | 4.550 | 4.785 | 4.542 | 4.679 | 4.679 | 21,891 |
| 2025-05-30 | 4.600 | 4.648 | 4.422 | 4.611 | 4.611 | 12,330 |
| 2025-05-29 | 4.700 | 4.935 | 4.650 | 4.745 | 4.745 | 57,786 |
Stock splits
No stock splits on record.
Dividends
No dividends on record.
Open, high, low and close are as traded (USD). Adjusted close accounts for splits and dividends. Educational only, not financial advice.