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9.73
2.11%
-0.21
Pre-market:
9.78
0.05
+0.51%
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 January 27, 2026, is $9.73.
- 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 125.23% to $9.73 now.
- The 52-week high stock price for PRTA is $16.66, representing a 71.27% increase from the current share price, occurred on February 21, 2025.
- The 52-week low stock price for PRTA is $4.32, indicating a -55.60% decrease from the current share price, occurred on May 28, 2025.
- The closing price of Prothena Corporation Plc (PRTA) stock in the beginning of 2025 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:
Daily
Weekly
Monthly
7D
30D
60D
YTD
1Y
| Date | High | Low | High - Low | Volume | % Change |
|---|---|---|---|---|---|
| Jan 27, 2026 | $10.09 | $9.68 | $0.41 | 393,146.0 | -2.11% |
| Jan 26, 2026 | $10.26 | $9.77 | $0.495 | 468,368.0 | -0.60% |
| Jan 23, 2026 | $10.53 | $9.99 | $0.54 | 659,376.0 | -3.29% |
| Jan 22, 2026 | $10.35 | $9.66 | $0.685 | 512,585.0 | +6.82% |
| Jan 21, 2026 | $9.72 | $9.24 | $0.48 | 591,425.0 | +4.65% |
| Jan 20, 2026 | $9.54 | $9.00 | $0.545 | 630,805.0 | -1.07% |
| Jan 16, 2026 | $9.45 | $8.94 | $0.515 | 740,912.0 | +0.97% |
| Jan 15, 2026 | $9.28 | $8.91 | $0.365 | 601,967.0 | +0.65% |
| Jan 14, 2026 | $9.26 | $8.84 | $0.42 | 398,427.0 | +2.45% |
| Jan 13, 2026 | $9.06 | $8.77 | $0.29 | 470,159.0 | +0.79% |
| Jan 12, 2026 | $9.16 | $8.65 | $0.51 | 581,586.0 | -3.05% |
| Jan 09, 2026 | $9.34 | $9.11 | $0.225 | 399,448.0 | +1.55% |
| Jan 08, 2026 | $9.16 | $8.95 | $0.21 | 375,982.0 | -0.88% |
| Jan 07, 2026 | $9.46 | $8.96 | $0.505 | 467,536.0 | +1.78% |
| Jan 06, 2026 | $9.14 | $8.88 | $0.255 | 636,414.0 | -1.43% |
| Jan 05, 2026 | $9.24 | $8.92 | $0.32 | 539,121.0 | -1.09% |
| Jan 02, 2026 | $9.69 | $9.07 | $0.62 | 526,824.0 | -3.66% |
| Dec 31, 2025 | $9.56 | $9.24 | $0.32 | 466,240.0 | +2.58% |
| Dec 30, 2025 | $9.52 | $9.29 | $0.23 | 362,751.0 | -1.79% |
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 2026
| Month | High | Low | High - Low | Volume | % Change |
|---|---|---|---|---|---|
| Jan, 2026 | $10.53 | $8.65 | $1.88 | 9,387,227.0 | +1.88% |
Prothena Corporation Plc Stock (PRTA) Price History 2025
| Month | High | Low | High - Low | Volume | % Change |
|---|---|---|---|---|---|
| Dec, 2025 | $11.57 | $9.07 | $2.50 | 15,977,385.0 | -13.40% |
| Nov, 2025 | $11.17 | $9.72 | $1.45 | 11,080,284.0 | +0.00% |
| Oct, 2025 | $11.69 | $9.58 | $2.11 | 14,246,440.0 | +10.14% |
| Sep, 2025 | $9.85 | $8.02 | $1.83 | 16,831,625.0 | +19.02% |
| Aug, 2025 | $8.97 | $6.61 | $2.36 | 24,377,063.0 | +19.36% |
| Jul, 2025 | $7.33 | $5.96 | $1.37 | 18,053,702.0 | +13.18% |
| 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% |
2.09%
0.48%
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