Prothena Corp. Plc (PRTA)
8.06
-0.21
(-2.54%)
USD |
NASDAQ |
Oct 06, 14:18
Prothena Price : 8.06 for Oct. 6, 2026
Price Chart
Historical Price Data
| Date | Open | High | Low | Close | Volume |
|---|---|---|---|---|---|
| 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 |
| Sep 21, 2026 | 8.59 | 8.795 | 8.46 | 8.51 | 363158.0 |
| Sep 18, 2026 | 8.41 | 8.60 | 8.25 | 8.58 | 1.831M |
| Sep 17, 2026 | 8.39 | 8.56 | 8.23 | 8.46 | 404760.0 |
| Sep 16, 2026 | 8.35 | 8.50 | 8.20 | 8.24 | 398337.0 |
| Sep 15, 2026 | 8.86 | 8.86 | 8.295 | 8.33 | 323439.0 |
| Sep 14, 2026 | 8.95 | 8.99 | 8.79 | 8.86 | 374873.0 |
| Sep 11, 2026 | 9.06 | 9.14 | 8.765 | 8.93 | 376276.0 |
| Sep 10, 2026 | 9.25 | 9.255 | 8.97 | 9.02 | 310913.0 |
| Sep 09, 2026 | 9.40 | 9.496 | 9.22 | 9.30 | 294558.0 |
| Sep 08, 2026 | 9.60 | 9.67 | 9.345 | 9.54 | 305441.0 |
| Sep 04, 2026 | 9.50 | 9.87 | 9.48 | 9.82 | 383928.0 |
| Sep 03, 2026 | 9.77 | 9.78 | 9.512 | 9.60 | 277056.0 |
| Sep 02, 2026 | 9.64 | 9.75 | 9.37 | 9.685 | 341056.0 |
| Sep 01, 2026 | 9.28 | 9.63 | 9.26 | 9.61 | 267669.0 |
| Aug 31, 2026 | 9.26 | 9.40 | 9.100 | 9.35 | 335150.0 |
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 | 41.84 |
| Amarin Corp. Plc | 12.04 |
| Agenus, Inc. | 7.64 |
| Amgen, Inc. | 400.53 |
| BioCryst Pharmaceuticals, Inc. | 8.04 |
Price Related Metrics
| PS Ratio | 7.905 |
| Price to Book Value | 1.454 |
| Earnings Yield | -10.32% |
| Market Cap | 417.06M |