|
Market Closed -
Nasdaq
16:00:00 2026-09-11 EDT
|
5-day change | 1st Jan Change | ||
| 8.930 USD | -1.00% |
|
-9.06% | -6.49% |
| Market Cap | 458M 395M 374M 339M 636M 43.8B 639M 4.44B 1.71B 22.28B 1.72B 1.68B 70.41B | P/E 2026 * |
81.2x | P/E 2027 * | -9.6x |
|---|---|---|---|---|---|
| Enterprise Value | 458M 395M 374M 339M 636M 43.8B 639M 4.44B 1.71B 22.28B 1.72B 1.68B 70.41B | EV / Sales 2026 * |
5.51x | EV / Sales 2027 * | 18.8x |
| Free-Float |
77.85% | Yield 2026 * |
-
| Yield 2027 * | - |
| Markets | Quality | ||
|---|---|---|---|
Nasdaq
| PRTA | Delayed | |
CBOE
| PRTA | Real-time | |
|
Tradegate
| 0PT | Real-time | |
|
London S.E.
| 0Y3M | Delayed | |
|
Deutsche Boerse AG
| 0PT | Delayed | |
|
Börse Stuttgart
| 0PT | Delayed | |
|
Boerse Muenchen
| 0PT | Real-time |
Last Transcript : Prothena Corporation plc
| 1 day | -1.00% | ||
| 1 week | -9.06% | ||
| Current month | -4.49% | ||
| 1 month | -3.15% | ||
| 3 months | +8.11% | ||
| 6 months | -6.78% | ||
| Current year | -6.49% |
| 1 week | 8.76 |  | 9.67 |
| 1 month | 8.58 | | 9.87 |
| Current year | 7.73 | | 11.8 |
| 1 year | 7.73 | | 11.8 |
| 3 years | 4.32 | | 56.04 |
| 5 years | 4.32 | | 79.75 |
| 10 years | 4.32 | | 79.75 |
| Manager | Title | Age | Since |
|---|---|---|---|
Gene Kinney
CEO | Chief Executive Officer | 57 | 2016-09-29 |
Tran Nguyen
DFI | Director of Finance/CFO | 52 | 2013-03-31 |
Brandon Smith
COO | Chief Operating Officer | 52 | 2021-09-28 |
| Director | Title | Age | Since |
|---|---|---|---|
Lars Ekman
CHM | Chairman | 76 | 2012-12-19 |
Richard Collier
BRD | Director/Board Member | 72 | 2012-12-19 |
Shane Cooke
BRD | Director/Board Member | 63 | 2012-12-19 |
| Date | Insider | Type | Main position | Quantity | % Market Cap. | Importance |
|---|---|---|---|---|---|---|
| 9/2/26 | Buy | 27,000 | 0.0526% | |||
| 8/20/26 | Buy | 50,000 | 0.0955% | |||
| 8/18/26 | Don | -627,553 | 1.1987% |
| Change | 5-day change | 1-year change | 3-year change | Capi.($) | ||
|---|---|---|---|---|---|---|
 | -1.00% | -9.06% | +5.93% | -83.60% | 458M | |
| -2.11% | -1.68% | +44.52% | +95.15% | 66.93B | |
| -0.23% | -4.45% | +30.39% | +73.64% | 61.97B | |
| +1.67% | +2.47% | -11.23% | +388.34% | 28.27B | |
| -1.05% | -4.43% | +30.56% | +10.07% | 24.59B | |
| +0.34% | -6.78% | -7.27% | -17.99% | 24.3B | |
| +0.43% | -3.37% | +14.85% | -19.29% | 19.41B | |
| -3.03% | -2.29% | +185.12% | +334.07% | 16.77B | |
| -1.94% | -4.94% | -5.29% | +495.65% | 14.18B | |
| -2.28% | -4.90% | +43.64% | +155.21% | 13.91B | |
| Average | -0.92% | -4.02% | +33.12% | +143.12% | 27.08B | |
| Weighted average by Cap. | -0.84% | -3.07% | +33.41% | +133.30% |
| 2026 * | 2027 * | |
|---|---|---|
| Net sales | 83.16M 71.65M 67.84M 61.49M 115M 7.94B 116M 806M 310M 4.04B 312M 305M 12.77B | 24.38M 21M 19.89M 18.02M 33.81M 2.33B 33.99M 236M 90.82M 1.18B 91.54M 89.53M 3.74B |
| Net income | 6.22M 5.36M 5.08M 4.6M 8.63M 595M 8.68M 60.31M 23.19M 303M 23.38M 22.86M 956M | -49.57M -42.71M -40.44M -36.66M -68.77M -4.74B -69.12M -480M -185M -2.41B -186M -182M -7.61B |
| Net Debt | - | - |
| Date | Price | Change | Volume |
|---|---|---|---|
| 26-09-11 | US$8.930 | -1.00% | 376,275 |
| 26-09-10 | US$9.020 | -3.01% | 310,912 |
| 26-09-09 | US$9.300 | -2.52% | 294,558 |
| 26-09-08 | US$9.540 | -2.85% | 305,440 |
| 26-09-04 | US$9.820 | +2.29% | 383,928 |
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