Prothena Corp. Plc (PRTA)
8.40
+0.20
(+2.44%)
USD |
NASDAQ |
Oct 26, 16:00
8.395
0.00 (0.00%)
After-Hours: 20:00
Prothena Price : 8.40 for Oct. 26, 2026
Price Chart
Historical Price Data
| Date | Open | High | Low | Close | Volume |
|---|---|---|---|---|---|
| Oct 26, 2026 | 8.34 | 8.49 | 8.21 | 8.40 | 594545.0 |
| Oct 23, 2026 | 8.18 | 8.268 | 7.93 | 8.20 | 386146.0 |
| Oct 22, 2026 | 8.01 | 8.285 | 7.96 | 8.25 | 381831.0 |
| Oct 21, 2026 | 8.47 | 8.54 | 8.01 | 8.03 | 461394.0 |
| Oct 20, 2026 | 8.55 | 8.645 | 8.45 | 8.50 | 529034.0 |
| Oct 19, 2026 | 8.39 | 8.57 | 8.31 | 8.48 | 361133.0 |
| Oct 16, 2026 | 8.58 | 8.62 | 8.24 | 8.35 | 670257.0 |
| Oct 15, 2026 | 8.54 | 8.65 | 8.44 | 8.50 | 358380.0 |
| Oct 14, 2026 | 8.28 | 8.56 | 8.19 | 8.37 | 620027.0 |
| Oct 13, 2026 | 8.45 | 8.55 | 8.20 | 8.36 | 573313.0 |
| Oct 12, 2026 | 8.81 | 8.81 | 8.395 | 8.43 | 489761.0 |
| Oct 09, 2026 | 8.57 | 9.305 | 8.50 | 8.84 | 931626.0 |
| Oct 08, 2026 | 8.43 | 8.81 | 8.36 | 8.61 | 642408.0 |
| Oct 07, 2026 | 7.93 | 8.63 | 7.88 | 8.48 | 690413.0 |
| Oct 06, 2026 | 8.28 | 8.28 | 7.80 | 8.02 | 510608.0 |
| Oct 05, 2026 | 8.335 | 8.37 | 7.91 | 8.27 | 714463.0 |
| Oct 02, 2026 | 8.62 | 8.62 | 8.35 | 8.36 | 675839.0 |
| Oct 01, 2026 | 8.54 | 8.58 | 8.35 | 8.54 | 457092.0 |
| Sep 30, 2026 | 8.98 | 8.99 | 8.365 | 8.38 | 634780.0 |
| Sep 29, 2026 | 8.66 | 8.80 | 8.59 | 8.78 | 602979.0 |
| Sep 28, 2026 | 8.25 | 8.86 | 8.073 | 8.72 | 488859.0 |
| Sep 25, 2026 | 8.38 | 8.52 | 8.185 | 8.29 | 481049.0 |
| Sep 24, 2026 | 8.63 | 8.73 | 8.28 | 8.32 | 426063.0 |
| Sep 23, 2026 | 8.94 | 8.97 | 8.665 | 8.68 | 357843.0 |
| Sep 22, 2026 | 8.72 | 9.09 | 8.70 | 8.99 | 445501.0 |
Price Definition
The price of a security measures the cost to purchase 1 share of a security. For a company, price can be multiplied by shares outstanding to find the market capitalization (value of the company).
Price Range, Past 5 Years
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Median
Price Benchmarks
| Alkermes Plc | 44.44 |
| Amarin Corp. Plc | 12.09 |
| Agenus, Inc. | 6.16 |
| Amgen, Inc. | 444.63 |
| Anika Therapeutics, Inc. | 21.27 |
Price Related Metrics
| PS Ratio | 8.238 |
| Price to Book Value | 1.515 |
| Earnings Yield | -9.90% |
| Market Cap | 434.65M |