Laser Focus World is an industry bedrock—first published in 1965 and still going strong. We publish original articles about cutting-edge advances in lasers, optics, photonics, sensors, and quantum technologies, as well as test and measurement, and the shift currently underway to usher in the photonic integrated circuits, optical interconnects, and copackaged electronics and photonics to deliver the speed and efficiency essential for data centers of the future.

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Editorial Advisory Board

  • Professor Andrea M. Armani, University of Southern California
  • Ruti Ben-Shlomi, Ph.D., LightSolver
  • James Butler, Ph.D., Hamamatsu
  • Natalie Fardian-Melamed, Ph.D., Columbia University
  • Justin Sigley, Ph.D., AmeriCOM
  • Professor Birgit Stiller, Max Planck Institute for the Science of Light, and Leibniz University of Hannover
  • Professor Stephen Sweeney, University of Glasgow
  • Mohan Wang, Ph.D., University of Oxford
  • Professor Xuchen Wang, Harbin Engineering University
  • Professor Stefan Witte, Delft University of Technology

Prothena Corporation plc - Ordinary Shares (NQ:PRTA)

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Historical Prices

Date Open High Low Close Volume Change (%)
Sep 26, 2025 9.290 9.460 9.024 9.410 722,759 +0.05(+0.53%)
Sep 25, 2025 9.200 9.560 9.040 9.360 1,566,775 +0.04(+0.43%)
Sep 24, 2025 8.320 9.340 8.300 9.320 1,116,744 +1.01(+12.15%)
Sep 23, 2025 8.280 8.350 8.140 8.310 404,696 +0.02(+0.24%)
Sep 22, 2025 8.120 8.430 8.020 8.290 511,942 +0.22(+2.73%)
Sep 19, 2025 8.200 8.230 8.065 8.070 910,686 -0.11(-1.34%)
Sep 18, 2025 8.180 8.350 8.050 8.180 459,057 +0.12(+1.49%)
Sep 17, 2025 8.190 8.385 8.040 8.060 507,319 -0.10(-1.23%)
Sep 16, 2025 8.120 8.360 8.120 8.160 362,452 +0.00(+0.00%)
Sep 15, 2025 8.180 8.350 8.100 8.160 713,691 -0.05(-0.61%)
Sep 12, 2025 8.430 8.490 8.200 8.210 551,060 -0.22(-2.61%)
Sep 11, 2025 8.240 8.500 8.190 8.430 711,934 +0.12(+1.51%)
Sep 10, 2025 8.340 8.470 8.200 8.305 518,573 -0.04(-0.42%)
Sep 09, 2025 8.500 8.500 8.100 8.340 916,153 -0.15(-1.77%)
Sep 08, 2025 8.610 8.620 8.300 8.490 622,009 -0.06(-0.70%)
Sep 05, 2025 8.240 8.585 8.210 8.550 1,128,164 +0.34(+4.14%)
Sep 04, 2025 8.450 8.460 8.105 8.210 961,587 -0.18(-2.15%)
Sep 03, 2025 8.240 8.470 8.160 8.390 1,210,436 +0.12(+1.45%)
Sep 02, 2025 8.170 8.425 8.060 8.270 1,048,928 +0.07(+0.85%)
Aug 29, 2025 8.270 8.340 8.080 8.200 903,119 -0.04(-0.49%)
Aug 28, 2025 8.220 8.580 8.050 8.240 1,710,848 -0.32(-3.74%)
Aug 27, 2025 8.360 8.730 8.350 8.560 1,021,112 +0.21(+2.51%)
Aug 26, 2025 8.350 8.560 8.300 8.350 1,653,408 -0.03(-0.36%)
Aug 25, 2025 8.760 8.789 8.350 8.380 613,157 -0.39(-4.45%)
Aug 22, 2025 8.630 8.970 8.520 8.770 1,244,739 +0.21(+2.45%)
Aug 21, 2025 8.410 8.570 8.320 8.560 858,008 +0.04(+0.47%)
Aug 20, 2025 8.500 8.595 8.280 8.520 639,174 +0.00(+0.00%)
Aug 19, 2025 8.510 8.700 8.350 8.520 829,894 -0.01(-0.12%)
Aug 18, 2025 8.360 8.660 8.295 8.530 1,164,541 +0.28(+3.39%)
Aug 15, 2025 8.110 8.335 8.000 8.250 1,130,318 +0.19(+2.36%)
Aug 14, 2025 8.020 8.116 7.780 8.060 590,370 +0.01(+0.12%)
Aug 13, 2025 7.600 8.170 7.580 8.050 1,598,596 +0.51(+6.76%)
Aug 12, 2025 7.770 7.960 7.500 7.540 906,550 -0.13(-1.69%)
Aug 11, 2025 7.700 7.850 7.385 7.670 1,147,187 -0.02(-0.26%)
Aug 08, 2025 7.740 7.940 7.635 7.690 921,633 -0.03(-0.39%)
Aug 07, 2025 7.980 7.980 7.520 7.720 1,092,134 -0.19(-2.40%)
Aug 06, 2025 7.520 8.010 7.280 7.910 3,107,958 +0.88(+12.52%)
Aug 05, 2025 7.030 7.540 6.730 7.030 1,565,289 +0.09(+1.30%)
Aug 04, 2025 6.850 6.990 6.700 6.940 957,884 +0.13(+1.91%)
Aug 01, 2025 6.800 6.870 6.610 6.810 859,928 -0.06(-0.87%)
Jul 31, 2025 6.910 7.225 6.830 6.870 994,942 -0.01(-0.15%)
Jul 30, 2025 7.000 7.330 6.740 6.880 1,240,795 -0.05(-0.72%)
Jul 29, 2025 6.890 7.100 6.800 6.930 724,885 +0.06(+0.87%)
Jul 28, 2025 6.710 6.890 6.626 6.870 804,747 +0.19(+2.84%)
Jul 25, 2025 6.750 6.860 6.580 6.680 772,127 -0.02(-0.30%)
Jul 24, 2025 6.720 6.758 6.540 6.700 735,590 -0.06(-0.89%)
Jul 23, 2025 6.540 6.940 6.510 6.760 899,105 +0.23(+3.52%)
Jul 22, 2025 6.310 6.590 6.290 6.530 722,319 +0.24(+3.82%)
Jul 21, 2025 6.270 6.520 6.240 6.290 686,670 +0.03(+0.48%)
Jul 18, 2025 6.540 6.621 6.245 6.260 788,843 -0.21(-3.25%)
Jul 17, 2025 6.360 6.600 6.320 6.470 743,450 +0.15(+2.37%)
Jul 16, 2025 6.270 6.440 6.185 6.320 675,234 +0.10(+1.61%)
Jul 15, 2025 6.440 6.460 6.160 6.220 730,504 -0.21(-3.27%)
Jul 14, 2025 6.380 6.500 6.330 6.430 792,510 +0.03(+0.47%)
Jul 11, 2025 6.470 6.520 6.310 6.400 569,147 -0.17(-2.59%)
Jul 10, 2025 6.550 6.680 6.432 6.570 806,739 -0.01(-0.15%)
Jul 09, 2025 6.570 6.770 6.550 6.580 698,935 +0.06(+0.92%)
Jul 08, 2025 6.290 6.665 6.290 6.520 1,021,937 +0.23(+3.66%)
Jul 07, 2025 6.400 6.470 6.225 6.290 896,818 -0.14(-2.25%)
Jul 03, 2025 6.320 6.456 6.210 6.435 636,811 +0.11(+1.82%)
Jul 02, 2025 6.250 6.585 6.130 6.320 1,114,647 +0.06(+0.96%)
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