Get the Stockscreener App
104.31
3.90%
3.92
After Hours:
104.31
Protagonist Therapeutics Inc Stock (PTGX) Price History
The historical daily chart and data for Protagonist Therapeutics Inc stock (PTGX), show that the latest closing stock price as of March 25, 2026, is $104.31.
- Protagonist Therapeutics Inc all-time high stock price is $105.69, occurred on March 19, 2026.
- The lowest Protagonist Therapeutics Inc stock price recorded was $4.47 on December 03, 2019. Since then, Protagonist Therapeutics Inc's stock price has risen over 2,234% to $104.31 now.
- The 52-week high stock price for PTGX is $105.69, representing a 1.32% increase from the current share price, occurred on March 19, 2026.
- The 52-week low stock price for PTGX is $39.60, indicating a -62.04% decrease from the current share price, occurred on April 09, 2025.
- The closing price of Protagonist Therapeutics Inc (PTGX) stock in the beginning of 2025 was $35.32. The stock closed the year at $10.91, a loss of over -69.11% for the year.
The table below shows more information about PTGX historical price data:
Daily
Weekly
Monthly
7D
30D
60D
YTD
1Y
| Date | High | Low | High - Low | Volume | % Change |
|---|---|---|---|---|---|
| Mar 25, 2026 | $105.0 | $97.16 | $7.84 | 812,059.0 | +3.90% |
| Mar 24, 2026 | $101.0 | $97.16 | $3.82 | 940,176.0 | +1.88% |
| Mar 23, 2026 | $102.1 | $98.15 | $3.91 | 925,418.0 | -0.33% |
| Mar 20, 2026 | $101.8 | $97.83 | $3.97 | 2,029,067.0 | -2.76% |
| Mar 19, 2026 | $105.7 | $98.34 | $7.34 | 1,917,448.0 | +4.73% |
| Mar 18, 2026 | $99.50 | $90.58 | $8.92 | 1,981,524.0 | -0.14% |
| Mar 17, 2026 | $99.31 | $96.42 | $2.89 | 799,227.0 | +0.50% |
| Mar 16, 2026 | $97.08 | $92.61 | $4.47 | 695,747.0 | +4.75% |
| Mar 13, 2026 | $98.30 | $90.92 | $7.38 | 895,515.0 | -3.21% |
| Mar 12, 2026 | $96.39 | $93.67 | $2.72 | 750,590.0 | -1.10% |
| Mar 11, 2026 | $98.32 | $95.97 | $2.35 | 788,737.0 | -0.59% |
| Mar 10, 2026 | $98.21 | $95.40 | $2.81 | 855,909.0 | +0.40% |
| Mar 09, 2026 | $97.53 | $91.14 | $6.39 | 726,512.0 | +4.96% |
| Mar 06, 2026 | $92.97 | $87.82 | $5.15 | 570,289.0 | +0.74% |
| Mar 05, 2026 | $94.54 | $90.35 | $4.19 | 677,477.0 | -3.61% |
| Mar 04, 2026 | $95.43 | $91.03 | $4.40 | 782,715.0 | +3.87% |
| Mar 03, 2026 | $93.51 | $90.02 | $3.49 | 529,523.0 | -3.12% |
| Mar 02, 2026 | $94.89 | $90.98 | $3.91 | 942,700.0 | +2.35% |
| Feb 27, 2026 | $92.23 | $87.31 | $4.92 | 936,837.0 | +4.17% |
| Feb 26, 2026 | $88.83 | $85.60 | $3.23 | 706,007.0 | +1.48% |
| Feb 25, 2026 | $88.46 | $86.25 | $2.20 | 285,220.0 | -0.33% |
| Feb 24, 2026 | $89.59 | $86.00 | $3.59 | 668,518.0 | +0.92% |
Protagonist Therapeutics Inc Stock (PTGX) Year by Year Price History
In this detailed analysis, we present a comprehensive overview of the price movements of Protagonist Therapeutics Inc stock over the years. By exploring the year-by-year data, investors can gain valuable insights into the historical performance and volatility of PTGX shares. From significant milestones and fluctuations to notable trends, this in-depth examination of Protagonist Therapeutics Inc stock price history provides a foundation for understanding how the company's stock has evolved over time.
Protagonist Therapeutics Inc Stock (PTGX) Price History 2026
| Month | High | Low | High - Low | Volume | % Change |
|---|---|---|---|---|---|
| Mar, 2026 | $105.7 | $87.82 | $17.87 | 18,432,692.0 | +13.28% |
| Feb, 2026 | $92.23 | $77.00 | $15.23 | 11,325,702.0 | +12.57% |
| Jan, 2026 | $88.16 | $77.69 | $10.46 | 17,330,398.0 | -6.34% |
Protagonist Therapeutics Inc Stock (PTGX) Price History 2025
| Month | High | Low | High - Low | Volume | % Change |
|---|---|---|---|---|---|
| Dec, 2025 | $96.54 | $83.52 | $13.02 | 19,322,234.0 | -3.04% |
| Nov, 2025 | $90.85 | $75.44 | $15.41 | 16,880,659.0 | +14.47% |
| Oct, 2025 | $93.25 | $62.24 | $31.01 | 33,325,838.0 | +18.35% |
| Sep, 2025 | $68.26 | $54.50 | $13.76 | 24,433,470.0 | +12.50% |
| Aug, 2025 | $61.89 | $50.48 | $11.41 | 13,877,749.0 | +9.64% |
| Jul, 2025 | $57.73 | $49.38 | $8.35 | 15,157,006.0 | -2.55% |
| Jun, 2025 | $57.70 | $47.53 | $10.17 | 20,591,534.0 | +16.43% |
| May, 2025 | $47.74 | $41.28 | $6.46 | 16,499,952.0 | +3.60% |
| Apr, 2025 | $48.93 | $39.60 | $9.33 | 26,177,677.0 | -5.25% |
| Mar, 2025 | $60.60 | $37.20 | $23.40 | 31,788,843.0 | +28.65% |
| Feb, 2025 | $39.90 | $33.70 | $6.20 | 12,169,705.0 | -0.56% |
| Jan, 2025 | $40.16 | $35.03 | $5.13 | 10,342,778.0 | -2.07% |
Protagonist Therapeutics Inc Stock (PTGX) Price History 2024
| Month | High | Low | High - Low | Volume | % Change |
|---|---|---|---|---|---|
| Dec, 2024 | $43.83 | $38.04 | $5.79 | 12,374,412.0 | -12.08% |
| Nov, 2024 | $48.86 | $33.31 | $15.55 | 16,791,880.0 | -4.45% |
| Oct, 2024 | $48.89 | $42.78 | $6.11 | 10,491,436.0 | +1.87% |
| Sep, 2024 | $48.00 | $40.67 | $7.33 | 14,443,953.0 | +4.92% |
| Aug, 2024 | $43.76 | $32.50 | $11.26 | 13,350,479.0 | +14.56% |
| Jul, 2024 | $42.67 | $33.21 | $9.46 | 27,469,672.0 | +8.05% |
| Jun, 2024 | $35.96 | $28.36 | $7.60 | 17,898,965.0 | +23.09% |
| May, 2024 | $32.64 | $24.78 | $7.86 | 10,374,141.0 | +12.11% |
| Apr, 2024 | $29.21 | $24.22 | $4.99 | 11,096,780.0 | -13.20% |
| Mar, 2024 | $33.34 | $27.59 | $5.76 | 11,517,719.0 | -4.77% |
| Feb, 2024 | $31.40 | $25.07 | $6.33 | 15,825,790.0 | +21.47% |
| Jan, 2024 | $28.10 | $21.43 | $6.67 | 16,412,528.0 | +9.07% |
1.82%
Open in Yahoo
|
Open in Google
|
Open in Finviz
|
Open in MarketWatch
|
Open in EDGAR
|
Open in Reuters
Cap:
|
Volume (24h):