Prothena Corp. PLC historical data
| Date | Open | High | Low | Close | Adj. close | Volume |
|---|---|---|---|---|---|---|
| 2026-07-30 | 8.420 | 8.420 | 8.280 | 8.382 | 8.382 | 649 |
| 2026-07-29 | 8.400 | 8.720 | 8.400 | 8.435 | 8.435 | 409 |
| 2026-07-28 | 8.700 | 8.700 | 8.380 | 8.380 | 8.380 | 171 |
| 2026-07-27 | 8.880 | 9.010 | 8.590 | 8.755 | 8.755 | 442 |
| 2026-07-24 | 8.550 | 8.830 | 8.550 | 8.830 | 8.830 | 1 |
| 2026-07-23 | 8.370 | 8.610 | 8.370 | 8.610 | 8.610 | 89 |
| 2026-07-22 | 8.655 | 8.655 | 8.642 | 8.642 | 8.642 | 30 |
| 2026-07-21 | 8.750 | 8.750 | 8.642 | 8.642 | 8.642 | 42 |
| 2026-07-20 | 8.780 | 8.780 | 8.582 | 8.620 | 8.620 | 445 |
| 2026-07-17 | 8.700 | 8.750 | 8.668 | 8.668 | 8.668 | 572 |
| 2026-07-16 | 8.410 | 8.410 | 8.220 | 8.282 | 8.282 | 151 |
| 2026-07-15 | 8.710 | 8.800 | 8.540 | 8.613 | 8.613 | 19 |
| 2026-07-14 | 8.580 | 8.920 | 8.580 | 8.830 | 8.830 | 299 |
| 2026-07-13 | 8.920 | 9.230 | 8.800 | 8.860 | 8.860 | 970 |
| 2026-07-10 | 9.640 | 9.765 | 9.080 | 9.128 | 9.128 | 596 |
| 2026-07-09 | 9.840 | 9.917 | 9.630 | 9.640 | 9.640 | 809 |
| 2026-07-08 | 9.653 | 9.770 | 9.590 | 9.680 | 9.680 | 297 |
| 2026-07-07 | 9.620 | 9.740 | 9.445 | 9.678 | 9.678 | 568 |
| 2026-07-06 | 10.000 | 10.000 | 9.635 | 9.640 | 9.640 | 49 |
| 2026-07-03 | 9.800 | 9.800 | 9.800 | 9.800 | 9.800 | 0 |
| 2026-07-02 | 10.100 | 10.100 | 9.800 | 9.800 | 9.800 | 1 |
| 2026-07-01 | 9.630 | 9.630 | 9.630 | 9.630 | 9.630 | 10 |
| 2026-06-30 | 9.840 | 10.020 | 9.820 | 9.820 | 9.820 | 58 |
| 2026-06-29 | 10.025 | 10.060 | 9.810 | 9.850 | 9.850 | 132 |
| 2026-06-26 | 9.327 | 9.810 | 9.327 | 9.760 | 9.760 | 384 |
| 2026-06-25 | 9.310 | 9.410 | 9.280 | 9.410 | 9.410 | 27 |
| 2026-06-24 | 9.570 | 9.840 | 9.470 | 9.603 | 9.603 | 349 |
| 2026-06-23 | 8.970 | 9.630 | 8.970 | 9.630 | 9.630 | 1,029 |
| 2026-06-22 | 9.000 | 9.160 | 8.860 | 9.135 | 9.135 | 2,287 |
| 2026-06-19 | 8.890 | 8.890 | 8.890 | 8.890 | 8.890 | 0 |
| 2026-06-18 | 8.630 | 8.890 | 8.560 | 8.890 | 8.890 | 4,545 |
| 2026-06-17 | 8.390 | 8.650 | 8.390 | 8.610 | 8.610 | 625 |
| 2026-06-16 | 8.350 | 8.350 | 8.040 | 8.250 | 8.250 | 583 |
| 2026-06-15 | 8.650 | 8.770 | 8.002 | 8.038 | 8.038 | 2,445 |
| 2026-06-12 | 8.333 | 8.333 | 8.333 | 8.333 | 8.333 | 0 |
| 2026-06-11 | 8.010 | 8.333 | 7.890 | 8.333 | 8.333 | 70 |
| 2026-06-10 | 8.280 | 8.460 | 8.160 | 8.160 | 8.160 | 204 |
| 2026-06-09 | 8.690 | 8.690 | 8.637 | 8.637 | 8.637 | 320 |
| 2026-06-08 | 8.800 | 8.970 | 8.660 | 8.670 | 8.670 | 785 |
| 2026-06-05 | 9.160 | 9.290 | 8.657 | 8.885 | 8.885 | 1,666 |
| 2026-06-04 | 9.140 | 9.380 | 9.140 | 9.215 | 9.215 | 856 |
| 2026-06-03 | 9.210 | 9.210 | 8.780 | 8.895 | 8.895 | 7,060 |
| 2026-06-02 | 9.330 | 9.500 | 9.170 | 9.276 | 9.276 | 75 |
| 2026-06-01 | 9.960 | 10.160 | 9.790 | 9.850 | 9.850 | 1,106 |
| 2026-05-29 | 10.070 | 10.070 | 9.820 | 10.030 | 10.030 | 25 |
| 2026-05-28 | 9.950 | 10.090 | 9.740 | 9.980 | 9.980 | 38 |
| 2026-05-27 | 10.020 | 10.234 | 10.020 | 10.234 | 10.234 | 138 |
| 2026-05-26 | 9.850 | 10.030 | 9.700 | 9.700 | 9.700 | 1,257 |
| 2026-05-22 | 8.980 | 9.958 | 8.980 | 9.934 | 9.934 | 276 |
| 2026-05-21 | 9.160 | 9.191 | 9.105 | 9.191 | 9.191 | 302 |
| 2026-05-20 | 9.210 | 9.210 | 9.210 | 9.210 | 9.210 | 0 |
| 2026-05-19 | 9.610 | 9.610 | 9.200 | 9.210 | 9.210 | 774 |
| 2026-05-18 | 9.905 | 10.030 | 9.660 | 9.840 | 9.840 | 52 |
| 2026-05-15 | 10.070 | 10.070 | 9.500 | 9.500 | 9.500 | 190 |
| 2026-05-14 | 9.680 | 9.940 | 9.510 | 9.510 | 9.510 | 160 |
| 2026-05-13 | 9.550 | 9.550 | 9.310 | 9.477 | 9.477 | 115 |
| 2026-05-12 | 9.670 | 9.850 | 9.480 | 9.510 | 9.510 | 135 |
| 2026-05-11 | 10.820 | 11.120 | 9.800 | 9.809 | 9.809 | 707 |
| 2026-05-08 | 11.040 | 11.660 | 10.715 | 10.890 | 10.890 | 2,184 |
| 2026-05-07 | 11.100 | 11.100 | 10.600 | 10.600 | 10.600 | 293 |
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.