Prothena Corporation plc (PRTA)
NASDAQ: PRTA · Real-Time Price · USD
10.28
+0.02 (0.19%)
Nov 5, 2025, 2:01 PM EST - Market open
Prothena Corporation Stock Price History
Historical Data
| Date | Open | High | Low | Close | Adj. Close | Change | Volume |
|---|---|---|---|---|---|---|---|
| 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 |
| Sep 25, 2025 | 9.20 | 9.56 | 9.04 | 9.36 | 9.36 | 0.43% | 1,566,775 |
| Sep 24, 2025 | 8.32 | 9.34 | 8.30 | 9.32 | 9.32 | 12.15% | 1,116,744 |
| Sep 23, 2025 | 8.28 | 8.35 | 8.14 | 8.31 | 8.31 | 0.24% | 404,696 |
| Sep 22, 2025 | 8.12 | 8.43 | 8.02 | 8.29 | 8.29 | 2.73% | 511,942 |
| Sep 19, 2025 | 8.20 | 8.23 | 8.07 | 8.07 | 8.07 | -1.34% | 910,686 |
| Sep 18, 2025 | 8.18 | 8.35 | 8.05 | 8.18 | 8.18 | 1.49% | 459,057 |
| Sep 17, 2025 | 8.19 | 8.39 | 8.04 | 8.06 | 8.06 | -1.23% | 507,619 |
| Sep 16, 2025 | 8.12 | 8.36 | 8.12 | 8.16 | 8.16 | - | 362,452 |
| Sep 15, 2025 | 8.18 | 8.35 | 8.10 | 8.16 | 8.16 | -0.61% | 713,691 |
| Sep 12, 2025 | 8.43 | 8.49 | 8.20 | 8.21 | 8.21 | -2.61% | 551,060 |
| Sep 11, 2025 | 8.24 | 8.50 | 8.19 | 8.43 | 8.43 | 1.51% | 711,934 |
| Sep 10, 2025 | 8.34 | 8.47 | 8.20 | 8.31 | 8.31 | -0.42% | 518,651 |
| Sep 9, 2025 | 8.50 | 8.50 | 8.10 | 8.34 | 8.34 | -1.77% | 916,203 |
| Sep 8, 2025 | 8.61 | 8.62 | 8.30 | 8.49 | 8.49 | -0.70% | 622,009 |
| Sep 5, 2025 | 8.24 | 8.59 | 8.21 | 8.55 | 8.55 | 4.14% | 1,128,164 |
| Sep 4, 2025 | 8.45 | 8.46 | 8.11 | 8.21 | 8.21 | -2.15% | 961,597 |
| Sep 3, 2025 | 8.24 | 8.47 | 8.16 | 8.39 | 8.39 | 1.45% | 1,187,425 |
| Sep 2, 2025 | 8.17 | 8.43 | 8.06 | 8.27 | 8.27 | 0.85% | 1,048,928 |
| Aug 29, 2025 | 8.27 | 8.34 | 8.08 | 8.20 | 8.20 | -0.49% | 903,119 |
| Aug 28, 2025 | 8.22 | 8.58 | 8.05 | 8.24 | 8.24 | -3.74% | 1,711,298 |
| Aug 27, 2025 | 8.36 | 8.73 | 8.35 | 8.56 | 8.56 | 2.51% | 1,021,264 |
| Aug 26, 2025 | 8.35 | 8.56 | 8.30 | 8.35 | 8.35 | -0.36% | 1,653,408 |