5 DAY PERFORMANCE
+15.82%
1 MONTH PERFORMANCE
+18.62%
3 MONTH PERFORMANCE
+15.55%
6 MONTH PERFORMANCE
-12.33%
YEAR-TO-DATE PERFORMANCE
+2.72%
1 YEAR PERFORMANCE
-4.48%
Prothena Corporation plc Stock Chart
Share Price History
| Date | Opening Price | Closing Price | High | Low | Volume | Market Capitalization |
|---|---|---|---|---|---|---|
| 11/05/2026 | $8.38 | $7.89 (-5.85%) | $8.38 | $7.87 | 518.50 K | $405.84 M |
| 11/04/2026 | $8.48 | $8.39 (-1.06%) | $8.56 | $8.30 | 289.20 K | $431.56 M |
| 11/03/2026 | $8.30 | $8.21 (-1.08%) | $8.49 | $8.15 | 289.49 K | $422.30 M |
| 11/02/2026 | $8.45 | $8.29 (-1.89%) | $8.49 | $8.11 | 462.50 K | $426.41 M |
| 10/30/2026 | $8.79 | $8.47 (-3.64%) | $8.90 | $8.35 | 452.30 K | $441.67 M |
| 10/29/2026 | $9.10 | $8.88 (-2.42%) | $9.26 | $8.75 | 370.10 K | $463.05 M |
| 10/28/2026 | $8.64 | $9.10 (5.32%) | $9.22 | $8.61 | 752.00 K | $474.52 M |
| 10/27/2026 | $8.40 | $8.81 (4.88%) | $8.85 | $8.35 | 654.35 K | $459.40 M |
| 10/26/2026 | $8.34 | $8.40 (0.72%) | $8.49 | $8.21 | 594.55 K | $438.02 M |
| 10/23/2026 | $8.18 | $8.20 (0.24%) | $8.27 | $7.93 | 386.15 K | $427.59 M |
| 10/22/2026 | $8.01 | $8.25 (3%) | $8.29 | $7.96 | 381.83 K | $430.20 M |
| 10/21/2026 | $8.47 | $8.03 (-5.19%) | $8.54 | $8.01 | 461.40 K | $418.72 M |
| 10/20/2026 | $8.55 | $8.50 (-0.58%) | $8.65 | $8.45 | 529.03 K | $443.23 M |
| 10/19/2026 | $8.39 | $8.48 (1.07%) | $8.57 | $8.31 | 361.13 K | $442.19 M |
| 10/16/2026 | $8.58 | $8.35 (-2.68%) | $8.62 | $8.24 | 670.30 K | $435.41 M |
| 10/15/2026 | $8.54 | $8.50 (-0.47%) | $8.65 | $8.44 | 358.40 K | $443.23 M |
| 10/14/2026 | $8.28 | $8.37 (1.09%) | $8.56 | $8.19 | 620.03 K | $436.45 M |
| 10/13/2026 | $8.45 | $8.36 (-1.07%) | $8.55 | $8.20 | 573.31 K | $435.93 M |
| 10/12/2026 | $8.81 | $8.43 (-4.31%) | $8.81 | $8.40 | 489.80 K | $439.58 M |
| 10/09/2026 | $8.57 | $8.84 (3.15%) | $9.31 | $8.50 | 931.63 K | $460.96 M |
| 10/08/2026 | $8.43 | $8.61 (2.14%) | $8.81 | $8.36 | 642.41 K | $448.97 M |
| 10/07/2026 | $7.93 | $8.48 (6.94%) | $8.63 | $7.88 | 690.41 K | $442.19 M |
| 10/06/2026 | $8.28 | $8.02 (-3.14%) | $8.28 | $7.80 | 510.61 K | $418.20 M |
| 10/05/2026 | $8.34 | $8.27 (-0.84%) | $8.37 | $7.91 | 714.50 K | $431.24 M |
| 10/02/2026 | $8.62 | $8.36 (-3.02%) | $8.62 | $8.35 | 675.84 K | $435.93 M |
| 10/01/2026 | $8.54 | $8.54 (0%) | $8.58 | $8.35 | 457.10 K | $445.32 M |
| 09/30/2026 | $8.98 | $8.38 (-6.68%) | $8.99 | $8.37 | 634.80 K | $436.98 M |
| 09/29/2026 | $8.66 | $8.78 (1.39%) | $8.80 | $8.59 | 602.98 K | $457.83 M |
| 09/28/2026 | $8.25 | $8.72 (5.7%) | $8.86 | $8.07 | 488.90 K | $454.70 M |
| 09/25/2026 | $8.38 | $8.29 (-1.07%) | $8.52 | $8.19 | 481.05 K | $432.28 M |
| 09/24/2026 | $8.63 | $8.32 (-3.59%) | $8.73 | $8.28 | 426.10 K | $433.85 M |
| 09/23/2026 | $8.94 | $8.68 (-2.91%) | $8.97 | $8.66 | 357.84 K | $452.62 M |
| 09/22/2026 | $8.72 | $8.99 (3.1%) | $9.09 | $8.70 | 445.50 K | $468.78 M |
| 09/21/2026 | $8.59 | $8.51 (-0.93%) | $8.80 | $8.46 | 363.16 K | $443.75 M |
| 09/18/2026 | $8.41 | $8.58 (2.02%) | $8.60 | $8.25 | 1.83 M | $447.40 M |
| 09/17/2026 | $8.39 | $8.46 (0.83%) | $8.56 | $8.23 | 404.80 K | $441.15 M |
| 09/16/2026 | $8.35 | $8.24 (-1.32%) | $8.50 | $8.20 | 398.34 K | $429.67 M |
| 09/15/2026 | $8.86 | $8.33 (-5.98%) | $8.86 | $8.30 | 323.44 K | $434.37 M |
| 09/14/2026 | $8.95 | $8.86 (-1.01%) | $8.99 | $8.79 | 374.90 K | $462.00 M |
| 09/11/2026 | $9.06 | $8.93 (-1.43%) | $9.14 | $8.77 | 376.30 K | $465.65 M |
| 09/10/2026 | $9.25 | $9.02 (-2.49%) | $9.26 | $8.97 | 310.91 K | $470.35 M |
| 09/09/2026 | $9.40 | $9.30 (-1.06%) | $9.50 | $9.22 | 294.60 K | $484.95 M |
| 09/08/2026 | $9.60 | $9.54 (-0.63%) | $9.67 | $9.35 | 305.44 K | $497.46 M |
| 09/04/2026 | $9.50 | $9.82 (3.37%) | $9.87 | $9.48 | 383.93 K | $512.06 M |
| 09/03/2026 | $9.77 | $9.60 (-1.74%) | $9.78 | $9.51 | 277.06 K | $500.59 M |
| 09/02/2026 | $9.64 | $9.69 (0.52%) | $9.75 | $9.37 | 341.10 K | $505.29 M |
| 09/01/2026 | $9.28 | $9.61 (3.56%) | $9.63 | $9.26 | 267.70 K | $501.11 M |
| 08/31/2026 | $9.26 | $9.35 (0.97%) | $9.40 | $9.10 | 335.15 K | $487.56 M |
| 08/28/2026 | $9.02 | $9.33 (3.44%) | $9.48 | $8.95 | 498.12 K | $486.51 M |
| 08/27/2026 | $9.16 | $9.09 (-0.76%) | $9.24 | $8.95 | 338.92 K | $474.00 M |
| 08/26/2026 | $9.40 | $9.25 (-1.6%) | $9.40 | $9.15 | 289.04 K | $482.34 M |
| 08/25/2026 | $9.51 | $9.42 (-0.95%) | $9.82 | $9.42 | 363.71 K | $491.21 M |
| 08/24/2026 | $9.46 | $9.39 (-0.74%) | $9.49 | $9.19 | 248.12 K | $489.64 M |
| 08/21/2026 | $9.11 | $9.45 (3.73%) | $9.52 | $9.09 | 376.04 K | $492.77 M |
| 08/20/2026 | $9.13 | $9.03 (-1.1%) | $9.15 | $8.71 | 346.00 K | $470.87 M |
| 08/19/2026 | $8.91 | $9.29 (4.26%) | $9.34 | $8.91 | 385.54 K | $484.43 M |
| 08/18/2026 | $8.88 | $8.71 (-1.91%) | $9.00 | $8.58 | 248.60 K | $454.18 M |
| 08/17/2026 | $8.84 | $8.88 (0.45%) | $9.07 | $8.73 | 365.92 K | $463.05 M |
| 08/14/2026 | $9.04 | $8.86 (-1.99%) | $9.15 | $8.84 | 312.60 K | $462.00 M |
| 08/13/2026 | $9.30 | $9.08 (-2.37%) | $9.37 | $9.04 | 343.10 K | $473.48 M |
| 08/12/2026 | $9.22 | $9.26 (0.43%) | $9.31 | $9.09 | 274.93 K | $482.86 M |
| 08/11/2026 | $9.12 | $9.22 (1.1%) | $9.29 | $8.86 | 475.30 K | $480.78 M |
| 08/10/2026 | $8.76 | $9.12 (4.11%) | $9.17 | $8.53 | 713.70 K | $475.56 M |
| 08/07/2026 | $8.54 | $8.76 (2.58%) | $8.85 | $8.04 | 481.90 K | $456.79 M |
| 08/06/2026 | $8.50 | $8.58 (0.94%) | $8.77 | $8.33 | 418.69 K | $447.40 M |
| 08/05/2026 | $8.49 | $8.49 (0%) | $8.74 | $8.40 | 489.50 K | $442.71 M |
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