5 DAY PERFORMANCE
-7.80%
1 MONTH PERFORMANCE
-2.29%
3 MONTH PERFORMANCE
+10.10%
6 MONTH PERFORMANCE
-2.68%
YEAR-TO-DATE PERFORMANCE
+2.72%
1 YEAR PERFORMANCE
+33.47%
Prothena Corporation plc Stock Chart
Share Price History
| Date | Opening Price | Closing Price | High | Low | Volume | Market Capitalization |
|---|---|---|---|---|---|---|
| 05/06/2026 | $11.19 | $11.17 (-0.18%) | $11.30 | $11.02 | 223.13 K | $595.48 M |
| 05/05/2026 | $10.89 | $11.19 (2.75%) | $11.25 | $10.89 | 306.82 K | $602.37 M |
| 05/04/2026 | $10.58 | $10.79 (1.98%) | $11.00 | $10.55 | 592.40 K | $580.84 M |
| 05/01/2026 | $11.04 | $10.64 (-3.62%) | $11.14 | $10.64 | 516.35 K | $572.76 M |
| 04/30/2026 | $10.89 | $11.06 (1.56%) | $11.12 | $10.84 | 319.52 K | $595.37 M |
| 04/29/2026 | $11.46 | $10.87 (-5.15%) | $11.46 | $10.74 | 397.88 K | $585.14 M |
| 04/28/2026 | $10.84 | $11.51 (6.18%) | $11.57 | $10.83 | 439.90 K | $619.59 M |
| 04/27/2026 | $10.71 | $10.79 (0.75%) | $11.12 | $10.71 | 314.34 K | $580.84 M |
| 04/24/2026 | $10.65 | $10.75 (0.94%) | $10.82 | $10.40 | 287.93 K | $578.68 M |
| 04/23/2026 | $10.69 | $10.73 (0.37%) | $11.07 | $10.60 | 474.70 K | $577.61 M |
| 04/22/2026 | $10.69 | $10.72 (0.28%) | $10.85 | $10.61 | 350.80 K | $577.07 M |
| 04/21/2026 | $10.78 | $10.67 (-1.02%) | $10.78 | $10.48 | 451.10 K | $574.38 M |
| 04/20/2026 | $10.82 | $10.79 (-0.28%) | $10.97 | $10.77 | 333.30 K | $580.84 M |
| 04/17/2026 | $10.71 | $10.90 (1.77%) | $10.99 | $10.70 | 486.50 K | $586.76 M |
| 04/16/2026 | $10.78 | $10.52 (-2.41%) | $10.85 | $10.45 | 298.91 K | $566.30 M |
| 04/15/2026 | $10.62 | $10.82 (1.88%) | $10.87 | $10.51 | 409.93 K | $582.45 M |
| 04/14/2026 | $10.34 | $10.61 (2.61%) | $10.67 | $10.34 | 370.95 K | $571.15 M |
| 04/13/2026 | $10.49 | $10.31 (-1.72%) | $10.55 | $10.18 | 334.10 K | $555.00 M |
| 04/10/2026 | $10.60 | $10.50 (-0.94%) | $10.60 | $10.37 | 319.03 K | $565.23 M |
| 04/09/2026 | $10.47 | $10.58 (1.05%) | $10.70 | $10.38 | 414.71 K | $569.53 M |
| 04/08/2026 | $10.48 | $10.65 (1.62%) | $10.68 | $10.29 | 454.50 K | $573.30 M |
| 04/07/2026 | $9.98 | $10.36 (3.81%) | $10.37 | $9.80 | 481.40 K | $557.69 M |
| 04/06/2026 | $9.91 | $10.04 (1.31%) | $10.11 | $9.88 | 412.51 K | $540.46 M |
| 04/02/2026 | $9.75 | $9.86 (1.13%) | $10.08 | $9.51 | 849.12 K | $530.77 M |
| 04/01/2026 | $9.84 | $10.03 (1.93%) | $10.12 | $9.80 | 593.30 K | $539.92 M |
| 03/31/2026 | $9.33 | $9.72 (4.18%) | $9.86 | $9.33 | 671.53 K | $523.24 M |
| 03/30/2026 | $9.24 | $9.25 (0.11%) | $9.50 | $9.11 | 416.20 K | $497.94 M |
| 03/27/2026 | $9.42 | $9.26 (-1.7%) | $9.62 | $9.14 | 430.10 K | $498.48 M |
| 03/26/2026 | $9.19 | $9.52 (3.59%) | $9.68 | $9.16 | 452.74 K | $512.47 M |
| 03/25/2026 | $8.84 | $9.31 (5.32%) | $9.32 | $8.82 | 543.70 K | $501.17 M |
| 03/24/2026 | $8.75 | $8.73 (-0.23%) | $8.96 | $8.49 | 534.73 K | $469.94 M |
| 03/23/2026 | $8.83 | $8.82 (-0.11%) | $9.04 | $8.76 | 487.60 K | $474.79 M |
| 03/20/2026 | $8.54 | $8.75 (2.46%) | $8.76 | $8.44 | 1.40 M | $471.02 M |
| 03/19/2026 | $8.54 | $8.54 (0%) | $8.63 | $8.38 | 467.80 K | $459.72 M |
| 03/18/2026 | $8.94 | $8.59 (-3.91%) | $8.94 | $8.53 | 495.90 K | $462.41 M |
| 03/17/2026 | $9.10 | $9.00 (-1.1%) | $9.20 | $8.96 | 467.13 K | $484.48 M |
| 03/16/2026 | $9.27 | $9.17 (-1.08%) | $9.32 | $9.06 | 511.80 K | $493.63 M |
| 03/13/2026 | $9.40 | $9.21 (-2.02%) | $9.54 | $8.99 | 584.50 K | $495.78 M |
| 03/12/2026 | $9.48 | $9.31 (-1.79%) | $9.48 | $9.09 | 737.00 K | $501.17 M |
| 03/11/2026 | $9.70 | $9.58 (-1.24%) | $9.84 | $9.26 | 701.24 K | $515.70 M |
| 03/10/2026 | $10.21 | $9.77 (-4.31%) | $10.27 | $9.68 | 628.40 K | $525.93 M |
| 03/09/2026 | $9.27 | $9.81 (5.83%) | $9.95 | $9.22 | 626.50 K | $528.08 M |
| 03/06/2026 | $9.24 | $9.59 (3.79%) | $9.64 | $9.24 | 651.80 K | $516.24 M |
| 03/05/2026 | $9.70 | $9.46 (-2.47%) | $10.06 | $9.36 | 509.80 K | $509.24 M |
| 03/04/2026 | $9.36 | $9.86 (5.34%) | $9.96 | $9.36 | 543.33 K | $530.77 M |
| 03/03/2026 | $9.09 | $9.36 (2.97%) | $9.62 | $8.95 | 553.44 K | $503.86 M |
| 03/02/2026 | $9.09 | $9.40 (3.41%) | $9.62 | $8.97 | 811.10 K | $506.01 M |
| 02/27/2026 | $8.53 | $8.67 (1.64%) | $8.79 | $8.48 | 439.40 K | $466.71 M |
| 02/26/2026 | $8.88 | $8.64 (-2.7%) | $8.96 | $8.63 | 355.72 K | $465.10 M |
| 02/25/2026 | $9.00 | $8.88 (-1.33%) | $9.11 | $8.53 | 490.50 K | $478.02 M |
| 02/24/2026 | $9.03 | $8.97 (-0.66%) | $9.30 | $8.75 | 448.81 K | $482.86 M |
| 02/23/2026 | $9.00 | $9.07 (0.78%) | $9.34 | $8.81 | 465.80 K | $488.25 M |
| 02/20/2026 | $9.38 | $9.02 (-3.84%) | $9.59 | $8.20 | 786.42 K | $485.56 M |
| 02/19/2026 | $9.06 | $9.03 (-0.33%) | $9.20 | $8.80 | 349.73 K | $486.09 M |
| 02/18/2026 | $8.81 | $9.09 (3.18%) | $9.23 | $8.81 | 307.60 K | $489.32 M |
| 02/17/2026 | $8.96 | $8.96 (0%) | $9.21 | $8.80 | 374.80 K | $482.33 M |
| 02/13/2026 | $8.85 | $8.96 (1.24%) | $9.24 | $8.85 | 308.61 K | $482.32 M |
| 02/12/2026 | $8.93 | $8.85 (-0.9%) | $9.04 | $8.72 | 351.72 K | $476.40 M |
| 02/11/2026 | $9.01 | $8.93 (-0.89%) | $9.09 | $8.65 | 271.12 K | $480.70 M |
| 02/10/2026 | $8.81 | $8.96 (1.7%) | $9.12 | $8.77 | 329.53 K | $482.32 M |
| 02/09/2026 | $8.90 | $8.86 (-0.45%) | $9.04 | $8.59 | 356.10 K | $476.93 M |
| 02/06/2026 | $8.58 | $8.91 (3.85%) | $8.99 | $8.56 | 581.03 K | $479.63 M |
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