Prothena Corporation (PRTA)
NASDAQ: PRTA
· Real-Time Price · USD
8.24
0.18 (2.23%)
At close: Aug 15, 2025, 3:59 PM
8.20
-0.49%
After-hours: Aug 15, 2025, 05:52 PM EDT
PRTA Stock Price History
Historical Data
| Date | Open | High | Low | Close | Adj Close | % Change | Volume |
|---|---|---|---|---|---|---|---|
| Aug 14, 2025 | 8.02 | 8.12 | 7.78 | 8.06 | 8.06 | 0.12% | 590,244 |
| Aug 13, 2025 | 7.60 | 8.17 | 7.58 | 8.05 | 8.05 | 6.76% | 1,598,596 |
| Aug 12, 2025 | 7.77 | 7.96 | 7.50 | 7.54 | 7.54 | -1.69% | 926,650 |
| Aug 11, 2025 | 7.70 | 7.85 | 7.39 | 7.67 | 7.67 | -0.26% | 1,147,200 |
| Aug 8, 2025 | 7.74 | 7.94 | 7.64 | 7.69 | 7.69 | -0.39% | 921,633 |
| Aug 7, 2025 | 7.98 | 7.98 | 7.52 | 7.72 | 7.72 | -2.53% | 1,092,136 |
| Aug 6, 2025 | 7.52 | 8.01 | 7.28 | 7.92 | 7.92 | 12.66% | 3,107,300 |
| Aug 5, 2025 | 7.03 | 7.54 | 6.73 | 7.03 | 7.03 | 1.30% | 1,565,300 |
| Aug 4, 2025 | 6.85 | 6.99 | 6.70 | 6.94 | 6.94 | 1.91% | 957,900 |
| Aug 1, 2025 | 6.80 | 6.87 | 6.61 | 6.81 | 6.81 | -0.87% | 859,928 |
| Jul 31, 2025 | 6.91 | 7.23 | 6.83 | 6.87 | 6.87 | -0.15% | 994,942 |
| Jul 30, 2025 | 7.00 | 7.33 | 6.74 | 6.88 | 6.88 | -0.72% | 1,240,800 |
| Jul 29, 2025 | 6.89 | 7.10 | 6.80 | 6.93 | 6.93 | 0.87% | 724,900 |
| Jul 28, 2025 | 6.71 | 6.89 | 6.63 | 6.87 | 6.87 | 2.84% | 804,766 |
| Jul 25, 2025 | 6.75 | 6.86 | 6.58 | 6.68 | 6.68 | -0.30% | 772,127 |
| Jul 24, 2025 | 6.72 | 6.76 | 6.54 | 6.70 | 6.70 | -0.89% | 735,600 |
| Jul 23, 2025 | 6.54 | 6.94 | 6.51 | 6.76 | 6.76 | 3.52% | 899,115 |
| Jul 22, 2025 | 6.31 | 6.59 | 6.29 | 6.53 | 6.53 | 3.82% | 722,348 |
| Jul 21, 2025 | 6.27 | 6.52 | 6.24 | 6.29 | 6.29 | 0.48% | 686,700 |
| Jul 18, 2025 | 6.54 | 6.62 | 6.25 | 6.26 | 6.26 | -3.25% | 788,843 |