6.435
price up icon1.82%   0.115
pre-market  Pre-market:  6.40   -0.035   -0.54%
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Prothena Corporation Plc Stock (PRTA) Price History

The historical daily chart and data for Prothena Corporation Plc stock (PRTA), show that the latest closing stock price as of July 03, 2025, is $6.435.
  • Prothena Corporation Plc all-time high stock price is $79.75, occurred on September 27, 2021.
  • The lowest Prothena Corporation Plc stock price recorded was $4.32 on May 28, 2025. Since then, Prothena Corporation Plc's stock price has risen over 48.96% to $6.435 now.
  • The 52-week high stock price for PRTA is $25.42, representing a 295.03% increase from the current share price, occurred on July 25, 2024.
  • The 52-week low stock price for PRTA is $4.32, indicating a -32.87% decrease from the current share price, occurred on May 28, 2025.
  • The closing price of Prothena Corporation Plc (PRTA) stock in the beginning of 2024 was $49.22. The stock closed the year at $60.25, a gain of over 22.41% for the year.
The table below shows more information about PRTA historical price data:
Date High Low High - Low Volume % Change
Jul 03, 2025 $6.46 $6.21 $0.2464 636,696.0 +1.82%
Jul 02, 2025 $6.58 $6.13 $0.455 1,114,585.0 +0.96%
Jul 01, 2025 $6.49 $5.96 $0.53 1,508,051.0 +3.13%
Jun 30, 2025 $6.24 $6.06 $0.18 1,139,529.0 -0.16%
Jun 27, 2025 $6.41 $6.01 $0.40 2,692,355.0 -1.62%
Jun 26, 2025 $6.33 $5.83 $0.495 2,128,903.0 +3.17%
Jun 25, 2025 $6.14 $5.84 $0.30 1,198,950.0 -1.32%
Jun 24, 2025 $6.28 $5.86 $0.42 1,624,806.0 +0.17%
Jun 23, 2025 $6.36 $5.70 $0.66 2,452,217.0 +5.94%
Jun 20, 2025 $6.05 $5.64 $0.41 3,572,323.0 -0.52%
Jun 18, 2025 $6.03 $5.67 $0.36 4,980,432.0 +0.88%
Jun 17, 2025 $6.00 $5.51 $0.49 2,941,335.0 +0.71%
Jun 16, 2025 $5.77 $5.29 $0.48 2,176,667.0 +11.42%
Jun 13, 2025 $5.15 $4.95 $0.20 806,357.0 +0.20%
Jun 12, 2025 $5.18 $5.01 $0.17 642,311.0 -0.59%
Jun 11, 2025 $5.39 $5.09 $0.30 842,888.0 -3.04%
Jun 10, 2025 $5.45 $5.22 $0.23 693,697.0 +0.19%
Jun 09, 2025 $5.53 $5.04 $0.4845 2,321,227.0 -2.96%

Prothena Corporation Plc Stock (PRTA) Year by Year Price History

In this detailed analysis, we present a comprehensive overview of the price movements of Prothena Corporation Plc stock over the years. By exploring the year-by-year data, investors can gain valuable insights into the historical performance and volatility of PRTA shares. From significant milestones and fluctuations to notable trends, this in-depth examination of Prothena Corporation Plc stock price history provides a foundation for understanding how the company's stock has evolved over time.

Prothena Corporation Plc Stock (PRTA) Price History 2025

Month High Low High - Low Volume % Change
Jul, 2025 $6.58 $5.96 $0.625 3,896,028.0 +6.01%
Jun, 2025 $6.41 $4.53 $1.88 37,183,399.0 +32.24%
May, 2025 $9.50 $4.32 $5.18 56,710,247.0 -50.11%
Apr, 2025 $12.45 $9.00 $3.45 13,642,220.0 -25.66%
Mar, 2025 $16.05 $11.78 $4.27 9,041,090.0 -21.73%
Feb, 2025 $16.66 $13.15 $3.51 6,536,309.0 +11.10%
Jan, 2025 $16.64 $12.39 $4.25 7,635,320.0 +2.74%

Prothena Corporation Plc Stock (PRTA) Price History 2024

Month High Low High - Low Volume % Change
Dec, 2024 $17.66 $11.70 $5.96 13,893,370.0 -8.20%
Nov, 2024 $18.77 $13.22 $5.55 8,760,505.0 -4.65%
Oct, 2024 $18.88 $15.30 $3.58 12,799,231.0 +1.61%
Sep, 2024 $22.83 $15.52 $7.31 9,584,427.0 -24.88%
Aug, 2024 $23.66 $18.99 $4.67 7,120,844.0 -4.34%
Jul, 2024 $25.42 $19.55 $5.87 9,094,562.0 +12.79%
Jun, 2024 $22.81 $18.69 $4.12 11,583,033.0 -0.82%
May, 2024 $24.20 $19.52 $4.68 10,950,137.0 +2.31%
Apr, 2024 $26.36 $19.65 $6.71 11,145,523.0 -17.88%
Mar, 2024 $30.85 $24.25 $6.60 11,542,717.0 -10.22%
Feb, 2024 $31.03 $24.29 $6.75 16,161,111.0 -2.82%
Jan, 2024 $41.55 $28.27 $13.28 22,443,182.0 -21.88%

Prothena Corporation Plc Stock (PRTA) Price History 2023

Month High Low High - Low Volume % Change
Dec, 2023 $41.49 $31.96 $9.53 16,583,747.0 +11.54%
Nov, 2023 $40.60 $31.71 $8.89 12,846,660.0 -10.64%
Oct, 2023 $55.89 $28.51 $27.38 20,626,195.0 -24.44%
Sep, 2023 $56.04 $45.22 $10.82 7,988,147.0 -8.65%
Aug, 2023 $70.09 $52.70 $17.39 9,585,640.0 -23.30%
Jul, 2023 $73.14 $61.17 $11.97 6,391,868.0 +0.86%
Jun, 2023 $77.13 $64.86 $12.27 9,046,359.0 +2.78%
May, 2023 $79.65 $52.25 $27.40 12,608,070.0 +26.24%
Apr, 2023 $55.18 $47.45 $7.73 6,612,561.0 +8.56%
Mar, 2023 $57.09 $45.06 $12.03 11,051,440.0 -13.07%
Feb, 2023 $60.20 $50.13 $10.07 8,799,251.0 -1.40%
Jan, 2023 $60.82 $51.65 $9.17 10,906,453.0 -6.14%
$20.30
price down icon 0.68%
$36.37
price up icon 0.50%
$24.55
price up icon 8.53%
$97.80
price down icon 0.45%
$110.00
price up icon 1.61%
biotechnology ONC
$245.49
price up icon 0.48%
Cap:     |  Volume (24h):