PRTA Historical Prices
Prothena Corporation plc Ordinary Shares · daily open, high, low, close & volume
Trading days
250
Period high
11.80
Period low
7.73
Period change
-19.98%
| Date | Open | High | Low | Close | Change | Volume |
|---|---|---|---|---|---|---|
| Nov 3, 2026 | 8.30 | 8.49 | 8.15 | 8.21 | -0.97% | 289,876 |
| Nov 2, 2026 | 8.45 | 8.49 | 8.11 | 8.29 | -2.13% | 464,595 |
| Oct 30, 2026 | 8.79 | 8.90 | 8.35 | 8.47 | -4.62% | 452,299 |
| Oct 29, 2026 | 9.10 | 9.26 | 8.75 | 8.88 | -2.42% | 370,070 |
| Oct 28, 2026 | 8.64 | 9.22 | 8.61 | 9.10 | +3.29% | 751,999 |
| Oct 27, 2026 | 8.40 | 8.85 | 8.35 | 8.81 | +4.88% | 654,353 |
| Oct 26, 2026 | 8.34 | 8.49 | 8.21 | 8.40 | +2.44% | 594,545 |
| Oct 23, 2026 | 8.18 | 8.27 | 7.93 | 8.20 | -0.61% | 386,146 |
| Oct 22, 2026 | 8.01 | 8.29 | 7.96 | 8.25 | +2.74% | 381,831 |
| Oct 21, 2026 | 8.47 | 8.54 | 8.01 | 8.03 | -5.53% | 461,394 |
| Oct 20, 2026 | 8.55 | 8.64 | 8.45 | 8.50 | +0.24% | 528,979 |
| Oct 19, 2026 | 8.39 | 8.57 | 8.31 | 8.48 | +1.56% | 361,133 |
| Oct 16, 2026 | 8.58 | 8.62 | 8.24 | 8.35 | -1.76% | 670,257 |
| Oct 15, 2026 | 8.54 | 8.65 | 8.44 | 8.50 | +1.55% | 358,380 |
| Oct 14, 2026 | 8.28 | 8.56 | 8.19 | 8.37 | +0.12% | 620,027 |
| Oct 13, 2026 | 8.45 | 8.55 | 8.20 | 8.36 | -0.83% | 573,313 |
| Oct 12, 2026 | 8.81 | 8.81 | 8.39 | 8.43 | -4.64% | 489,761 |
| Oct 9, 2026 | 8.57 | 9.30 | 8.50 | 8.84 | +2.67% | 931,626 |
| Oct 8, 2026 | 8.43 | 8.81 | 8.36 | 8.61 | +1.53% | 642,408 |
| Oct 7, 2026 | 7.93 | 8.63 | 7.88 | 8.48 | +5.74% | 690,413 |
| Oct 6, 2026 | 8.28 | 8.28 | 7.80 | 8.02 | -3.02% | 510,608 |
| Oct 5, 2026 | 8.34 | 8.37 | 7.91 | 8.27 | -1.08% | 714,463 |
| Oct 2, 2026 | 8.62 | 8.62 | 8.35 | 8.36 | -2.11% | 675,839 |
| Oct 1, 2026 | 8.54 | 8.58 | 8.35 | 8.54 | +1.91% | 457,092 |
| Sep 30, 2026 | 8.98 | 8.99 | 8.37 | 8.38 | -4.56% | 634,780 |
| Sep 29, 2026 | 8.66 | 8.80 | 8.59 | 8.78 | +0.69% | 602,979 |
| Sep 28, 2026 | 8.25 | 8.86 | 8.07 | 8.72 | +5.19% | 488,857 |
| Sep 25, 2026 | 8.38 | 8.52 | 8.19 | 8.29 | -0.36% | 481,049 |
| Sep 24, 2026 | 8.63 | 8.73 | 8.28 | 8.32 | -4.15% | 426,063 |
| Sep 23, 2026 | 8.94 | 8.97 | 8.66 | 8.68 | -3.45% | 357,843 |
| Sep 22, 2026 | 8.72 | 9.09 | 8.70 | 8.99 | +5.64% | 445,501 |
| Sep 21, 2026 | 8.59 | 8.79 | 8.46 | 8.51 | -0.82% | 363,158 |
| Sep 18, 2026 | 8.41 | 8.60 | 8.25 | 8.58 | +1.42% | 1,828,402 |
| Sep 17, 2026 | 8.39 | 8.56 | 8.23 | 8.46 | +2.67% | 404,760 |
| Sep 16, 2026 | 8.35 | 8.50 | 8.20 | 8.24 | -1.08% | 398,337 |
| Sep 15, 2026 | 8.86 | 8.86 | 8.29 | 8.33 | -5.98% | 323,439 |
| Sep 14, 2026 | 8.95 | 8.99 | 8.79 | 8.86 | -0.78% | 374,873 |
| Sep 11, 2026 | 9.06 | 9.14 | 8.77 | 8.93 | -1.00% | 376,276 |
| Sep 10, 2026 | 9.25 | 9.26 | 8.97 | 9.02 | -3.01% | 310,913 |
| Sep 9, 2026 | 9.40 | 9.50 | 9.22 | 9.30 | -2.52% | 294,558 |
| Sep 8, 2026 | 9.60 | 9.67 | 9.35 | 9.54 | -2.85% | 305,440 |
| Sep 4, 2026 | 9.50 | 9.87 | 9.48 | 9.82 | +2.29% | 383,928 |
| Sep 3, 2026 | 9.77 | 9.78 | 9.51 | 9.60 | -0.88% | 277,056 |
| Sep 2, 2026 | 9.64 | 9.75 | 9.37 | 9.69 | +3.58% | 341,056 |
| Aug 31, 2026 | 9.26 | 9.40 | 9.10 | 9.35 | +0.21% | 333,769 |
| Aug 28, 2026 | 9.02 | 9.48 | 8.95 | 9.33 | +2.64% | 498,115 |
| Aug 27, 2026 | 9.16 | 9.24 | 8.95 | 9.09 | -1.73% | 338,922 |
| Aug 26, 2026 | 9.40 | 9.40 | 9.15 | 9.25 | -1.80% | 289,040 |
| Aug 25, 2026 | 9.51 | 9.82 | 9.42 | 9.42 | +0.32% | 363,714 |
| Aug 24, 2026 | 9.46 | 9.49 | 9.19 | 9.39 | -0.63% | 248,124 |
| Aug 21, 2026 | 9.11 | 9.52 | 9.09 | 9.45 | +4.65% | 376,045 |
| Aug 20, 2026 | 9.13 | 9.14 | 8.71 | 9.03 | -2.80% | 345,968 |
| Aug 19, 2026 | 8.91 | 9.34 | 8.91 | 9.29 | +6.66% | 384,699 |
| Aug 18, 2026 | 8.88 | 9.00 | 8.58 | 8.71 | -1.91% | 248,561 |
| Aug 17, 2026 | 8.84 | 9.07 | 8.73 | 8.88 | +0.23% | 365,922 |
| Aug 14, 2026 | 9.04 | 9.15 | 8.84 | 8.86 | -2.42% | 312,601 |
| Aug 13, 2026 | 9.30 | 9.37 | 9.04 | 9.08 | -1.94% | 343,057 |
| Aug 12, 2026 | 9.22 | 9.31 | 9.09 | 9.26 | +0.43% | 274,927 |
| Aug 11, 2026 | 9.12 | 9.29 | 8.86 | 9.22 | +1.10% | 475,253 |
| Aug 10, 2026 | 8.76 | 9.17 | 8.53 | 9.12 | +4.11% | 713,688 |
| Aug 7, 2026 | 8.54 | 8.85 | 8.04 | 8.76 | +2.10% | 481,885 |
| Aug 6, 2026 | 8.50 | 8.77 | 8.33 | 8.58 | +1.06% | 418,686 |
| Aug 5, 2026 | 8.49 | 8.73 | 8.40 | 8.49 | +0.00% | 489,491 |
| Aug 4, 2026 | 8.33 | 8.58 | 8.33 | 8.49 | +1.92% | 329,914 |
| Aug 3, 2026 | 8.17 | 8.38 | 8.04 | 8.33 | +2.59% | 566,001 |
| Jul 31, 2026 | 8.41 | 8.51 | 8.00 | 8.12 | -3.45% | 545,491 |
| Jul 30, 2026 | 8.50 | 8.55 | 8.26 | 8.41 | -1.75% | 502,234 |
| Jul 29, 2026 | 8.45 | 8.68 | 8.39 | 8.56 | +0.00% | 641,214 |
| Jul 28, 2026 | 8.70 | 8.78 | 8.36 | 8.56 | -1.61% | 802,256 |
| Jul 27, 2026 | 8.88 | 9.13 | 8.66 | 8.70 | -0.57% | 704,707 |
| Jul 24, 2026 | 8.54 | 8.82 | 8.35 | 8.75 | +2.58% | 576,837 |
| Jul 23, 2026 | 8.27 | 8.63 | 8.23 | 8.53 | +1.07% | 532,213 |
| Jul 22, 2026 | 8.69 | 8.79 | 8.43 | 8.44 | -3.54% | 542,549 |
| Jul 21, 2026 | 8.72 | 8.81 | 8.51 | 8.75 | +0.92% | 647,645 |
| Jul 20, 2026 | 8.66 | 8.85 | 8.54 | 8.67 | +0.12% | 549,625 |
| Jul 17, 2026 | 8.40 | 8.80 | 8.28 | 8.66 | +2.24% | 408,386 |
| Jul 16, 2026 | 8.40 | 8.66 | 8.07 | 8.47 | +0.47% | 659,663 |
| Jul 15, 2026 | 8.58 | 8.63 | 8.42 | 8.43 | -2.43% | 504,131 |
| Jul 14, 2026 | 8.77 | 8.88 | 8.61 | 8.64 | -2.15% | 522,031 |
| Jul 13, 2026 | 9.17 | 9.19 | 8.76 | 8.83 | -4.44% | 781,733 |
| Jul 10, 2026 | 9.64 | 9.82 | 9.03 | 9.24 | -4.15% | 505,131 |
| Jul 9, 2026 | 9.83 | 10.02 | 9.55 | 9.64 | -2.13% | 482,230 |
| Jul 8, 2026 | 9.66 | 9.86 | 9.56 | 9.85 | +1.76% | 444,246 |
| Jul 7, 2026 | 9.62 | 9.78 | 9.33 | 9.68 | +1.89% | 520,543 |
| Jul 6, 2026 | 9.65 | 9.84 | 9.46 | 9.50 | -1.96% | 403,738 |
| Jul 2, 2026 | 9.61 | 10.15 | 9.57 | 9.69 | +1.15% | 462,876 |
| Jul 1, 2026 | 9.74 | 10.00 | 9.47 | 9.58 | -2.15% | 435,334 |
| Jun 30, 2026 | 9.96 | 10.04 | 9.75 | 9.79 | -1.81% | 339,636 |
| Jun 29, 2026 | 10.00 | 10.12 | 9.78 | 9.97 | -0.50% | 420,256 |
| Jun 26, 2026 | 9.32 | 10.09 | 9.28 | 10.02 | +8.09% | 1,914,377 |
| Jun 25, 2026 | 9.42 | 9.58 | 9.19 | 9.27 | -1.38% | 964,890 |
| Jun 24, 2026 | 9.57 | 9.87 | 9.26 | 9.40 | -1.57% | 477,886 |
| Jun 23, 2026 | 9.12 | 9.77 | 9.12 | 9.55 | +4.37% | 458,045 |
| Jun 22, 2026 | 8.90 | 9.27 | 8.89 | 9.15 | +2.46% | 612,545 |
| Jun 18, 2026 | 8.63 | 9.15 | 8.52 | 8.93 | +5.18% | 1,390,844 |
| Jun 17, 2026 | 8.39 | 8.72 | 8.39 | 8.49 | +2.41% | 542,968 |
| Jun 16, 2026 | 8.16 | 8.35 | 7.85 | 8.29 | +1.72% | 586,273 |
| Jun 15, 2026 | 8.69 | 8.77 | 7.93 | 8.15 | -1.21% | 622,612 |
| Jun 12, 2026 | 8.26 | 8.45 | 8.22 | 8.25 | -0.12% | 315,405 |
| Jun 11, 2026 | 7.89 | 8.46 | 7.73 | 8.26 | +4.42% | 634,230 |
| Jun 10, 2026 | 8.42 | 8.59 | 7.89 | 7.91 | -6.61% | 456,981 |
| Jun 9, 2026 | 8.56 | 8.87 | 8.35 | 8.47 | -1.05% | 493,478 |
| Jun 8, 2026 | 8.80 | 8.89 | 8.53 | 8.56 | -2.62% | 313,208 |
| Jun 5, 2026 | 9.25 | 9.38 | 8.63 | 8.79 | -4.97% | 656,307 |
| Jun 4, 2026 | 9.03 | 9.45 | 9.03 | 9.25 | +3.70% | 504,873 |
| Jun 3, 2026 | 9.21 | 9.21 | 8.73 | 8.92 | -2.94% | 593,186 |
| Jun 2, 2026 | 9.59 | 9.59 | 9.12 | 9.19 | -4.17% | 439,011 |
| Jun 1, 2026 | 10.03 | 10.07 | 9.49 | 9.59 | -5.80% | 457,810 |
| May 29, 2026 | 9.93 | 10.23 | 9.80 | 10.18 | +2.00% | 501,435 |
| May 28, 2026 | 9.95 | 10.05 | 9.93 | 9.98 | -0.50% | 281,818 |
| May 27, 2026 | 10.11 | 10.26 | 10.01 | 10.03 | -0.30% | 616,188 |
| May 26, 2026 | 9.84 | 10.07 | 9.45 | 10.06 | +2.34% | 918,666 |
| May 22, 2026 | 9.36 | 10.00 | 9.36 | 9.83 | +4.46% | 510,854 |
| May 21, 2026 | 9.16 | 9.42 | 9.04 | 9.41 | +0.64% | 388,742 |
| May 20, 2026 | 9.09 | 9.41 | 9.09 | 9.35 | +3.09% | 624,876 |
| May 19, 2026 | 9.61 | 9.84 | 9.02 | 9.07 | -5.42% | 627,308 |
| May 18, 2026 | 9.66 | 10.09 | 9.53 | 9.59 | -1.74% | 650,972 |
| May 15, 2026 | 9.73 | 9.86 | 9.46 | 9.76 | -1.01% | 700,064 |
| May 14, 2026 | 9.60 | 9.88 | 9.42 | 9.86 | +2.71% | 452,435 |
| May 13, 2026 | 9.33 | 9.73 | 9.28 | 9.60 | +1.80% | 530,784 |
| May 12, 2026 | 9.67 | 9.82 | 9.29 | 9.43 | -2.48% | 495,103 |
| May 11, 2026 | 10.79 | 10.88 | 9.46 | 9.67 | -9.88% | 932,830 |
| May 8, 2026 | 11.00 | 11.80 | 10.62 | 10.73 | +2.00% | 798,770 |
| May 7, 2026 | 11.10 | 11.21 | 10.40 | 10.52 | -5.90% | 443,144 |
| May 6, 2026 | 11.19 | 11.29 | 11.02 | 11.18 | -0.09% | 333,876 |
| May 5, 2026 | 10.89 | 11.25 | 10.89 | 11.19 | +3.71% | 306,816 |
| May 4, 2026 | 10.58 | 11.00 | 10.55 | 10.79 | +1.41% | 592,359 |
| May 1, 2026 | 11.04 | 11.13 | 10.64 | 10.64 | -3.80% | 516,354 |
| Apr 30, 2026 | 10.89 | 11.12 | 10.84 | 11.06 | +1.75% | 319,521 |
| Apr 29, 2026 | 11.46 | 11.46 | 10.74 | 10.87 | -5.56% | 397,882 |
| Apr 28, 2026 | 10.84 | 11.57 | 10.83 | 11.51 | +6.67% | 439,891 |
| Apr 27, 2026 | 10.71 | 11.12 | 10.71 | 10.79 | +0.37% | 314,338 |
| Apr 24, 2026 | 10.65 | 10.82 | 10.40 | 10.75 | +0.19% | 287,830 |
| Apr 23, 2026 | 10.69 | 11.07 | 10.60 | 10.73 | +0.09% | 474,684 |
| Apr 22, 2026 | 10.69 | 10.85 | 10.61 | 10.72 | +0.47% | 350,784 |
| Apr 21, 2026 | 10.78 | 10.78 | 10.48 | 10.67 | -1.11% | 451,036 |
| Apr 20, 2026 | 10.82 | 10.97 | 10.77 | 10.79 | -1.01% | 333,299 |
| Apr 17, 2026 | 10.71 | 10.98 | 10.70 | 10.90 | +3.61% | 486,483 |
| Apr 16, 2026 | 10.78 | 10.85 | 10.45 | 10.52 | -2.77% | 298,913 |
| Apr 15, 2026 | 10.62 | 10.87 | 10.51 | 10.82 | +1.98% | 409,928 |
| Apr 14, 2026 | 10.34 | 10.67 | 10.34 | 10.61 | +2.91% | 370,946 |
| Apr 13, 2026 | 10.49 | 10.55 | 10.18 | 10.31 | -1.81% | 334,054 |
| Apr 10, 2026 | 10.60 | 10.60 | 10.37 | 10.50 | -0.76% | 319,035 |
| Apr 9, 2026 | 10.47 | 10.70 | 10.38 | 10.58 | -0.66% | 414,711 |
| Apr 8, 2026 | 10.48 | 10.68 | 10.29 | 10.65 | +2.80% | 454,454 |
| Apr 7, 2026 | 9.98 | 10.37 | 9.80 | 10.36 | +3.19% | 481,374 |
| Apr 6, 2026 | 9.91 | 10.11 | 9.88 | 10.04 | +1.83% | 412,514 |
| Apr 2, 2026 | 9.75 | 10.08 | 9.51 | 9.86 | -1.69% | 849,123 |
| Apr 1, 2026 | 9.84 | 10.12 | 9.80 | 10.03 | +3.19% | 593,298 |
| Mar 31, 2026 | 9.33 | 9.86 | 9.33 | 9.72 | +5.08% | 671,533 |
| Mar 30, 2026 | 9.24 | 9.50 | 9.11 | 9.25 | -0.11% | 416,193 |
| Mar 27, 2026 | 9.42 | 9.62 | 9.14 | 9.26 | -2.73% | 430,062 |
| Mar 26, 2026 | 9.19 | 9.68 | 9.16 | 9.52 | +2.26% | 452,737 |
| Mar 25, 2026 | 8.84 | 9.31 | 8.82 | 9.31 | +6.64% | 543,667 |
| Mar 24, 2026 | 8.75 | 8.96 | 8.48 | 8.73 | -1.02% | 534,726 |
| Mar 23, 2026 | 8.83 | 9.04 | 8.76 | 8.82 | +0.80% | 487,557 |
| Mar 20, 2026 | 8.54 | 8.76 | 8.44 | 8.75 | +2.46% | 1,401,661 |
| Mar 19, 2026 | 8.54 | 8.63 | 8.38 | 8.54 | -0.58% | 467,774 |
| Mar 18, 2026 | 8.94 | 8.94 | 8.53 | 8.59 | -4.56% | 495,893 |
| Mar 17, 2026 | 9.10 | 9.20 | 8.96 | 9.00 | -1.85% | 467,125 |
| Mar 16, 2026 | 9.27 | 9.31 | 9.06 | 9.17 | -0.43% | 511,792 |
| Mar 13, 2026 | 9.40 | 9.54 | 8.99 | 9.21 | -1.07% | 584,493 |
| Mar 12, 2026 | 9.48 | 9.48 | 9.09 | 9.31 | -2.82% | 737,000 |
| Mar 11, 2026 | 9.70 | 9.84 | 9.26 | 9.58 | -1.94% | 701,241 |
| Mar 10, 2026 | 10.21 | 10.27 | 9.68 | 9.77 | -0.41% | 628,374 |
| Mar 9, 2026 | 9.27 | 9.95 | 9.22 | 9.81 | +2.29% | 626,457 |
| Mar 6, 2026 | 9.24 | 9.64 | 9.24 | 9.59 | +1.37% | 651,791 |
| Mar 5, 2026 | 9.70 | 10.06 | 9.36 | 9.46 | -4.06% | 509,804 |
| Mar 4, 2026 | 9.36 | 9.96 | 9.36 | 9.86 | +5.34% | 543,331 |
| Mar 3, 2026 | 9.09 | 9.62 | 8.95 | 9.36 | -0.43% | 553,436 |
| Mar 2, 2026 | 9.09 | 9.62 | 8.96 | 9.40 | +8.42% | 811,088 |
| Feb 27, 2026 | 8.53 | 8.79 | 8.48 | 8.67 | +0.35% | 439,378 |
| Feb 26, 2026 | 8.88 | 8.96 | 8.63 | 8.64 | -2.70% | 355,723 |
| Feb 25, 2026 | 9.00 | 9.11 | 8.53 | 8.88 | -1.00% | 490,498 |
| Feb 24, 2026 | 9.03 | 9.30 | 8.75 | 8.97 | -1.10% | 448,815 |
| Feb 23, 2026 | 9.00 | 9.34 | 8.81 | 9.07 | +0.55% | 465,763 |
| Feb 20, 2026 | 9.38 | 9.59 | 8.20 | 9.02 | -0.11% | 786,420 |
| Feb 19, 2026 | 9.06 | 9.20 | 8.80 | 9.03 | -0.66% | 349,728 |
| Feb 18, 2026 | 8.81 | 9.22 | 8.80 | 9.09 | +1.45% | 307,596 |
| Feb 17, 2026 | 8.96 | 9.21 | 8.79 | 8.96 | +0.00% | 374,772 |
| Feb 13, 2026 | 8.85 | 9.24 | 8.85 | 8.96 | +1.24% | 308,607 |
| Feb 12, 2026 | 8.93 | 9.04 | 8.72 | 8.85 | -0.90% | 351,722 |
| Feb 11, 2026 | 9.01 | 9.09 | 8.65 | 8.93 | -0.33% | 271,115 |
| Feb 10, 2026 | 8.81 | 9.12 | 8.77 | 8.96 | +1.13% | 329,528 |
| Feb 9, 2026 | 8.90 | 9.04 | 8.59 | 8.86 | -0.56% | 356,096 |
| Feb 6, 2026 | 8.58 | 8.99 | 8.56 | 8.91 | +6.71% | 581,028 |
| Feb 5, 2026 | 8.86 | 9.04 | 8.23 | 8.35 | -6.07% | 518,973 |
| Feb 4, 2026 | 8.77 | 9.04 | 8.48 | 8.89 | +1.25% | 451,843 |
| Feb 3, 2026 | 8.90 | 9.05 | 8.61 | 8.78 | -1.46% | 280,865 |
| Feb 2, 2026 | 8.79 | 8.95 | 8.39 | 8.91 | +1.14% | 556,687 |
| Jan 30, 2026 | 8.98 | 9.07 | 8.65 | 8.81 | -2.76% | 389,955 |
| Jan 29, 2026 | 9.15 | 9.50 | 8.95 | 9.06 | -0.88% | 362,299 |
| Jan 28, 2026 | 9.69 | 9.78 | 9.10 | 9.14 | -6.06% | 422,156 |
| Jan 27, 2026 | 9.92 | 10.09 | 9.68 | 9.73 | -2.11% | 393,146 |
| Jan 26, 2026 | 9.94 | 10.26 | 9.77 | 9.94 | -0.60% | 470,290 |
| Jan 23, 2026 | 10.30 | 10.53 | 9.99 | 10.00 | -3.29% | 659,527 |
| Jan 22, 2026 | 9.68 | 10.35 | 9.66 | 10.34 | +6.82% | 512,688 |
| Jan 21, 2026 | 9.28 | 9.72 | 9.24 | 9.68 | +4.65% | 591,450 |
| Jan 20, 2026 | 9.12 | 9.54 | 9.00 | 9.25 | -1.07% | 630,858 |
| Jan 16, 2026 | 9.29 | 9.45 | 8.94 | 9.35 | +0.97% | 761,486 |
| Jan 15, 2026 | 9.16 | 9.28 | 8.91 | 9.26 | +0.65% | 601,967 |
| Jan 14, 2026 | 8.94 | 9.26 | 8.84 | 9.20 | +2.45% | 398,465 |
| Jan 13, 2026 | 8.77 | 9.06 | 8.77 | 8.98 | +0.79% | 470,366 |
| Jan 12, 2026 | 9.16 | 9.16 | 8.65 | 8.91 | -3.05% | 585,586 |
| Jan 9, 2026 | 9.19 | 9.34 | 9.11 | 9.19 | +1.55% | 401,921 |
| Jan 8, 2026 | 9.03 | 9.16 | 8.95 | 9.05 | -0.88% | 376,004 |
| Jan 7, 2026 | 9.00 | 9.46 | 8.96 | 9.13 | +1.78% | 468,687 |
| Jan 6, 2026 | 9.01 | 9.14 | 8.88 | 8.97 | -1.43% | 636,414 |
| Jan 5, 2026 | 9.24 | 9.24 | 8.92 | 9.10 | -1.09% | 539,121 |
| Jan 2, 2026 | 9.56 | 9.69 | 9.07 | 9.20 | -3.66% | 526,924 |
| Dec 31, 2025 | 9.30 | 9.56 | 9.24 | 9.55 | +2.58% | 475,140 |
| Dec 30, 2025 | 9.45 | 9.52 | 9.29 | 9.31 | -1.79% | 363,451 |
| Dec 29, 2025 | 9.49 | 9.54 | 9.34 | 9.48 | -0.63% | 495,901 |
| Dec 26, 2025 | 9.67 | 9.67 | 9.43 | 9.54 | -1.55% | 424,645 |
| Dec 24, 2025 | 9.46 | 9.74 | 9.23 | 9.69 | +2.11% | 237,356 |
| Dec 23, 2025 | 9.53 | 9.59 | 9.29 | 9.49 | -1.96% | 703,352 |
| Dec 22, 2025 | 9.16 | 9.78 | 9.07 | 9.68 | +5.10% | 688,017 |
| Dec 19, 2025 | 9.38 | 9.56 | 9.11 | 9.21 | -1.81% | 4,129,698 |
| Dec 18, 2025 | 9.46 | 9.67 | 9.32 | 9.38 | -0.53% | 547,631 |
| Dec 17, 2025 | 9.78 | 9.91 | 9.39 | 9.43 | -3.28% | 508,027 |
| Dec 16, 2025 | 9.95 | 10.16 | 9.52 | 9.75 | -2.21% | 638,928 |
| Dec 15, 2025 | 10.37 | 10.50 | 9.94 | 9.97 | -3.76% | 852,645 |
| Dec 12, 2025 | 10.40 | 10.49 | 10.20 | 10.36 | +0.29% | 477,695 |
| Dec 11, 2025 | 9.93 | 10.50 | 9.81 | 10.33 | +4.66% | 693,399 |
| Dec 10, 2025 | 10.28 | 10.32 | 9.69 | 9.87 | -4.36% | 961,391 |
| Dec 9, 2025 | 10.70 | 10.80 | 10.23 | 10.32 | -3.82% | 532,153 |
| Dec 8, 2025 | 11.20 | 11.30 | 10.71 | 10.73 | -3.07% | 561,870 |
| Dec 5, 2025 | 11.18 | 11.48 | 10.97 | 11.07 | -0.81% | 434,696 |
| Dec 4, 2025 | 11.04 | 11.57 | 10.95 | 11.16 | -0.09% | 1,161,191 |
| Dec 3, 2025 | 10.40 | 11.48 | 10.31 | 11.17 | +7.92% | 777,465 |
| Dec 2, 2025 | 10.29 | 10.53 | 10.14 | 10.35 | +0.78% | 615,124 |
| Dec 1, 2025 | 10.98 | 11.13 | 10.21 | 10.27 | -4.47% | 648,509 |
| Nov 28, 2025 | 10.52 | 10.82 | 10.46 | 10.75 | +3.07% | 288,728 |
| Nov 26, 2025 | 10.48 | 10.59 | 10.37 | 10.43 | -0.67% | 451,420 |
| Nov 25, 2025 | 10.50 | 10.62 | 10.30 | 10.50 | +0.96% | 515,553 |
| Nov 24, 2025 | 10.55 | 10.91 | 10.29 | 10.40 | -0.76% | 776,169 |
| Nov 21, 2025 | 10.02 | 10.69 | 9.90 | 10.48 | +4.28% | 461,186 |
| Nov 20, 2025 | 10.12 | 10.51 | 9.99 | 10.05 | +0.60% | 460,489 |
| Nov 19, 2025 | 10.29 | 10.49 | 9.97 | 9.99 | -3.57% | 479,680 |
| Nov 18, 2025 | 10.18 | 10.42 | 9.96 | 10.36 | +1.07% | 427,945 |
| Nov 17, 2025 | 9.94 | 10.32 | 9.75 | 10.25 | +3.22% | 827,245 |
| Nov 14, 2025 | 10.04 | 10.33 | 9.93 | 9.93 | -2.46% | 504,462 |
| Nov 13, 2025 | 10.83 | 10.83 | 10.12 | 10.18 | -6.18% | 679,641 |
| Nov 12, 2025 | 10.36 | 10.90 | 10.22 | 10.85 | +3.53% | 686,417 |
| Nov 11, 2025 | 10.39 | 10.75 | 10.13 | 10.48 | -0.47% | 603,643 |
| Nov 10, 2025 | 10.90 | 11.09 | 10.46 | 10.53 | -0.28% | 694,728 |
| Nov 7, 2025 | 10.49 | 10.96 | 9.72 | 10.56 | +4.76% | 928,366 |
| Nov 6, 2025 | 10.30 | 10.49 | 10.02 | 10.08 | -1.85% | 557,222 |
| Nov 5, 2025 | 10.17 | 10.45 | 10.00 | 10.27 | +0.10% | 535,313 |
| Nov 4, 2025 | 10.40 | 10.56 | 10.16 | 10.26 | -2.66% | 600,351 |
Daily open, high, low, close and volume for Prothena Corporation plc Ordinary Shares (PRTA). Showing 250 trading days. Unadjusted prices.