Prothena Corporation plc (PRTA)
NASDAQ: PRTA · Real-Time Price · USD
11.07
-0.09 (-0.81%)
At close: Dec 5, 2025, 4:00 PM EST
11.00
-0.07 (-0.63%)
After-hours: Dec 5, 2025, 6:34 PM EST
Prothena Corporation Stock Price History
Historical Data
| Date | Open | High | Low | Close | Adj. Close | Change | Volume |
|---|---|---|---|---|---|---|---|
| Dec 5, 2025 | 11.18 | 11.48 | 10.98 | 11.07 | 11.07 | -0.81% | 434,643 |
| Dec 4, 2025 | 11.04 | 11.57 | 10.95 | 11.16 | 11.16 | -0.09% | 1,161,191 |
| Dec 3, 2025 | 10.40 | 11.48 | 10.31 | 11.17 | 11.17 | 7.92% | 777,365 |
| Dec 2, 2025 | 10.29 | 10.53 | 10.14 | 10.35 | 10.35 | 0.78% | 615,114 |
| Dec 1, 2025 | 10.98 | 11.13 | 10.22 | 10.27 | 10.27 | -4.47% | 648,494 |
| Nov 28, 2025 | 10.52 | 10.83 | 10.46 | 10.75 | 10.75 | 3.07% | 288,706 |
| Nov 26, 2025 | 10.48 | 10.59 | 10.37 | 10.43 | 10.43 | -0.67% | 451,418 |
| Nov 25, 2025 | 10.50 | 10.62 | 10.30 | 10.50 | 10.50 | 0.96% | 515,553 |
| Nov 24, 2025 | 10.55 | 10.91 | 10.29 | 10.40 | 10.40 | -0.76% | 776,168 |
| Nov 21, 2025 | 10.02 | 10.69 | 9.90 | 10.48 | 10.48 | 4.28% | 461,186 |
| Nov 20, 2025 | 10.12 | 10.51 | 9.99 | 10.05 | 10.05 | 0.60% | 457,850 |
| Nov 19, 2025 | 10.29 | 10.49 | 9.97 | 9.99 | 9.99 | -3.57% | 479,680 |
| Nov 18, 2025 | 10.18 | 10.42 | 9.96 | 10.36 | 10.36 | 1.07% | 427,945 |
| Nov 17, 2025 | 9.94 | 10.32 | 9.75 | 10.25 | 10.25 | 3.22% | 827,245 |
| Nov 14, 2025 | 10.04 | 10.33 | 9.93 | 9.93 | 9.93 | -2.46% | 504,462 |
| Nov 13, 2025 | 10.83 | 10.83 | 10.12 | 10.18 | 10.18 | -6.18% | 679,641 |
| Nov 12, 2025 | 10.36 | 10.90 | 10.22 | 10.85 | 10.85 | 3.53% | 686,417 |
| Nov 11, 2025 | 10.39 | 10.75 | 10.14 | 10.48 | 10.48 | -0.47% | 603,643 |
| Nov 10, 2025 | 10.90 | 11.09 | 10.47 | 10.53 | 10.53 | -0.28% | 694,728 |
| Nov 7, 2025 | 10.49 | 10.96 | 9.72 | 10.56 | 10.56 | 4.76% | 928,366 |
| Nov 6, 2025 | 10.30 | 10.50 | 10.02 | 10.08 | 10.08 | -1.85% | 557,222 |
| Nov 5, 2025 | 10.17 | 10.45 | 10.00 | 10.27 | 10.27 | 0.10% | 535,313 |
| Nov 4, 2025 | 10.40 | 10.56 | 10.16 | 10.26 | 10.26 | -2.66% | 600,351 |
| Nov 3, 2025 | 10.76 | 11.17 | 10.41 | 10.54 | 10.54 | -1.95% | 612,476 |
| Oct 31, 2025 | 10.54 | 10.79 | 10.40 | 10.75 | 10.75 | 2.58% | 479,954 |
| Oct 30, 2025 | 10.63 | 10.82 | 10.35 | 10.48 | 10.48 | -1.60% | 381,487 |
| Oct 29, 2025 | 10.60 | 10.80 | 10.34 | 10.65 | 10.65 | 1.04% | 596,013 |
| Oct 28, 2025 | 11.14 | 11.69 | 10.40 | 10.54 | 10.54 | 1.64% | 969,343 |
| Oct 27, 2025 | 9.98 | 10.40 | 9.95 | 10.37 | 10.37 | 5.60% | 405,387 |
| Oct 24, 2025 | 9.80 | 10.02 | 9.71 | 9.82 | 9.82 | 0.72% | 362,606 |
| Oct 23, 2025 | 9.88 | 9.97 | 9.72 | 9.75 | 9.75 | -1.32% | 349,011 |
| Oct 22, 2025 | 10.22 | 10.35 | 9.72 | 9.88 | 9.88 | -3.28% | 429,435 |
| Oct 21, 2025 | 10.37 | 10.61 | 10.18 | 10.22 | 10.22 | -1.49% | 289,885 |
| Oct 20, 2025 | 10.05 | 10.55 | 9.96 | 10.37 | 10.37 | 4.54% | 558,918 |
| Oct 17, 2025 | 9.99 | 10.23 | 9.61 | 9.92 | 9.92 | -1.68% | 777,390 |
| Oct 16, 2025 | 10.76 | 10.90 | 10.03 | 10.09 | 10.09 | -5.35% | 624,880 |
| Oct 15, 2025 | 10.12 | 10.72 | 10.12 | 10.66 | 10.66 | 5.34% | 801,962 |
| Oct 14, 2025 | 10.32 | 10.32 | 10.03 | 10.12 | 10.12 | -2.22% | 392,072 |
| Oct 13, 2025 | 10.03 | 10.35 | 10.00 | 10.35 | 10.35 | 2.99% | 703,194 |
| Oct 10, 2025 | 10.34 | 10.45 | 9.98 | 10.05 | 10.05 | -2.43% | 734,065 |
| Oct 9, 2025 | 10.43 | 10.65 | 10.28 | 10.30 | 10.30 | -0.48% | 801,307 |
| Oct 8, 2025 | 10.27 | 10.54 | 10.13 | 10.35 | 10.35 | 1.77% | 650,937 |
| Oct 7, 2025 | 10.12 | 10.37 | 9.92 | 10.17 | 10.17 | 3.14% | 1,033,872 |
| Oct 6, 2025 | 10.00 | 10.09 | 9.77 | 9.86 | 9.86 | -0.60% | 343,503 |
| Oct 3, 2025 | 10.02 | 10.16 | 9.58 | 9.92 | 9.92 | -0.70% | 852,906 |
| Oct 2, 2025 | 9.95 | 10.22 | 9.85 | 9.99 | 9.99 | 0.71% | 767,564 |
| Oct 1, 2025 | 9.79 | 10.46 | 9.78 | 9.92 | 9.92 | 1.64% | 965,862 |
| Sep 30, 2025 | 9.73 | 9.85 | 9.50 | 9.76 | 9.76 | - | 989,151 |
| Sep 29, 2025 | 9.43 | 9.82 | 9.21 | 9.76 | 9.76 | 3.72% | 946,535 |
| Sep 26, 2025 | 9.29 | 9.46 | 9.02 | 9.41 | 9.41 | 0.53% | 715,256 |