Nasdaq · Common stock
Protagonist Therapeutics (PTGX)
$140.32 +$1.89 (+1.37%)
- Day’s range
- $137.30–$142.00
- Volume
- 823,273
PTGX price history
PTGX closed at $140.32 on Oct. 26, 2026. Over the past year, its daily close ranged from $75.25 on Oct. 27, 2025 to $158.62 on Aug. 17, 2026.
Data table: PTGX daily closes, the past year
| Date | Close |
|---|---|
| Oct. 26, 2026 | $140.32 |
| Oct. 23, 2026 | $138.43 |
| Oct. 22, 2026 | $139.53 |
| Oct. 21, 2026 | $138.08 |
| Oct. 20, 2026 | $137.99 |
| Oct. 19, 2026 | $134.44 |
| Oct. 16, 2026 | $128.75 |
| Oct. 15, 2026 | $136.55 |
| Oct. 14, 2026 | $136.28 |
| Oct. 13, 2026 | $138.49 |
| Oct. 12, 2026 | $144.88 |
| Oct. 9, 2026 | $143.73 |
| Oct. 8, 2026 | $139.91 |
| Oct. 7, 2026 | $140.92 |
| Oct. 6, 2026 | $138.69 |
| Oct. 5, 2026 | $140.63 |
| Oct. 2, 2026 | $140.06 |
| Oct. 1, 2026 | $139.19 |
| Sept. 30, 2026 | $140.89 |
| Sept. 29, 2026 | $140.97 |
| Sept. 28, 2026 | $142.44 |
| Sept. 25, 2026 | $141.86 |
| Sept. 24, 2026 | $137.34 |
| Sept. 23, 2026 | $138.70 |
| Sept. 22, 2026 | $145.07 |
| Sept. 21, 2026 | $144.98 |
| Sept. 18, 2026 | $143.00 |
| Sept. 17, 2026 | $143.70 |
| Sept. 16, 2026 | $142.84 |
| Sept. 15, 2026 | $143.40 |
| Sept. 14, 2026 | $147.78 |
| Sept. 11, 2026 | $148.18 |
| Sept. 10, 2026 | $145.16 |
| Sept. 9, 2026 | $145.09 |
| Sept. 8, 2026 | $145.94 |
| Sept. 4, 2026 | $145.72 |
| Sept. 3, 2026 | $148.80 |
| Sept. 2, 2026 | $146.08 |
| Sept. 1, 2026 | $146.49 |
| Aug. 31, 2026 | $147.75 |
| Aug. 28, 2026 | $144.33 |
| Aug. 27, 2026 | $149.50 |
| Aug. 26, 2026 | $151.50 |
| Aug. 25, 2026 | $150.59 |
| Aug. 24, 2026 | $154.72 |
| Aug. 21, 2026 | $154.32 |
| Aug. 20, 2026 | $150.69 |
| Aug. 19, 2026 | $154.94 |
| Aug. 18, 2026 | $157.34 |
| Aug. 17, 2026 | $158.62 |
| Aug. 14, 2026 | $155.10 |
| Aug. 13, 2026 | $151.42 |
| Aug. 12, 2026 | $152.01 |
| Aug. 11, 2026 | $148.29 |
| Aug. 10, 2026 | $150.00 |
| Aug. 7, 2026 | $145.87 |
| Aug. 6, 2026 | $146.18 |
| Aug. 5, 2026 | $137.32 |
| Aug. 4, 2026 | $135.81 |
| Aug. 3, 2026 | $132.28 |
| July 31, 2026 | $136.64 |
| July 30, 2026 | $138.64 |
| July 29, 2026 | $133.00 |
| July 28, 2026 | $136.84 |
| July 27, 2026 | $135.56 |
| July 24, 2026 | $136.11 |
| July 23, 2026 | $135.43 |
| July 22, 2026 | $135.44 |
| July 21, 2026 | $138.31 |
| July 20, 2026 | $134.27 |
| July 17, 2026 | $140.91 |
| July 16, 2026 | $132.02 |
| July 15, 2026 | $135.46 |
| July 14, 2026 | $131.27 |
| July 13, 2026 | $129.89 |
| July 10, 2026 | $131.42 |
| July 9, 2026 | $137.64 |
| July 8, 2026 | $140.07 |
| July 7, 2026 | $140.85 |
| July 6, 2026 | $131.50 |
| July 2, 2026 | $131.62 |
| July 1, 2026 | $125.17 |
| June 30, 2026 | $122.58 |
| June 29, 2026 | $121.63 |
| June 26, 2026 | $121.88 |
| June 25, 2026 | $122.63 |
| June 24, 2026 | $122.15 |
| June 23, 2026 | $118.96 |
| June 22, 2026 | $115.03 |
| June 18, 2026 | $112.86 |
| June 17, 2026 | $111.44 |
| June 16, 2026 | $110.64 |
| June 15, 2026 | $112.46 |
| June 12, 2026 | $109.78 |
| June 11, 2026 | $109.79 |
| June 10, 2026 | $105.77 |
| June 9, 2026 | $105.87 |
| June 8, 2026 | $98.03 |
| June 5, 2026 | $97.38 |
| June 4, 2026 | $102.79 |
| June 3, 2026 | $95.41 |
| June 2, 2026 | $93.23 |
| June 1, 2026 | $94.92 |
| May 29, 2026 | $99.56 |
| May 28, 2026 | $100.41 |
| May 27, 2026 | $102.21 |
| May 26, 2026 | $99.98 |
| May 22, 2026 | $99.19 |
| May 21, 2026 | $102.01 |
| May 20, 2026 | $100.88 |
| May 19, 2026 | $98.37 |
| May 18, 2026 | $100.74 |
| May 15, 2026 | $102.18 |
| May 14, 2026 | $105.55 |
| May 13, 2026 | $103.88 |
| May 12, 2026 | $99.95 |
| May 11, 2026 | $103.50 |
| May 8, 2026 | $99.36 |
| May 7, 2026 | $98.85 |
| May 6, 2026 | $103.97 |
| May 5, 2026 | $99.21 |
| May 4, 2026 | $99.52 |
| May 1, 2026 | $98.37 |
| April 30, 2026 | $98.97 |
| April 29, 2026 | $98.52 |
| April 28, 2026 | $101.21 |
| April 27, 2026 | $98.51 |
| April 24, 2026 | $100.00 |
| April 23, 2026 | $102.62 |
| April 22, 2026 | $105.55 |
| April 21, 2026 | $105.89 |
| April 20, 2026 | $105.47 |
| April 17, 2026 | $105.98 |
| April 16, 2026 | $103.73 |
| April 15, 2026 | $105.44 |
| April 14, 2026 | $104.72 |
| April 13, 2026 | $97.57 |
| April 10, 2026 | $98.82 |
| April 9, 2026 | $104.09 |
| April 8, 2026 | $102.09 |
| April 7, 2026 | $103.75 |
| April 6, 2026 | $102.89 |
| April 2, 2026 | $103.78 |
| April 1, 2026 | $103.67 |
| March 31, 2026 | $105.40 |
| March 30, 2026 | $99.87 |
| March 27, 2026 | $98.97 |
| March 26, 2026 | $102.17 |
| March 25, 2026 | $104.31 |
| March 24, 2026 | $100.39 |
| March 23, 2026 | $98.54 |
| March 20, 2026 | $98.87 |
| March 19, 2026 | $101.68 |
| March 18, 2026 | $97.09 |
| March 17, 2026 | $97.23 |
| March 16, 2026 | $96.75 |
| March 13, 2026 | $92.36 |
| March 12, 2026 | $95.42 |
| March 11, 2026 | $96.48 |
| March 10, 2026 | $97.05 |
| March 9, 2026 | $96.66 |
| March 6, 2026 | $92.09 |
| March 5, 2026 | $91.41 |
| March 4, 2026 | $94.83 |
| March 3, 2026 | $91.30 |
| March 2, 2026 | $94.24 |
| Feb. 27, 2026 | $92.08 |
| Feb. 26, 2026 | $88.39 |
| Feb. 25, 2026 | $87.10 |
| Feb. 24, 2026 | $87.39 |
| Feb. 23, 2026 | $86.59 |
| Feb. 20, 2026 | $82.76 |
| Feb. 19, 2026 | $83.09 |
| Feb. 18, 2026 | $82.99 |
| Feb. 17, 2026 | $82.46 |
| Feb. 13, 2026 | $81.49 |
| Feb. 12, 2026 | $81.93 |
| Feb. 11, 2026 | $83.49 |
| Feb. 10, 2026 | $83.88 |
| Feb. 9, 2026 | $83.32 |
| Feb. 6, 2026 | $84.49 |
| Feb. 5, 2026 | $80.67 |
| Feb. 4, 2026 | $83.30 |
| Feb. 3, 2026 | $85.59 |
| Feb. 2, 2026 | $83.05 |
| Jan. 30, 2026 | $81.80 |
| Jan. 29, 2026 | $79.73 |
| Jan. 28, 2026 | $81.76 |
| Jan. 27, 2026 | $83.08 |
| Jan. 26, 2026 | $82.30 |
| Jan. 23, 2026 | $83.10 |
| Jan. 22, 2026 | $84.79 |
| Jan. 21, 2026 | $83.89 |
| Jan. 20, 2026 | $83.42 |
| Jan. 16, 2026 | $81.99 |
| Jan. 15, 2026 | $84.75 |
| Jan. 14, 2026 | $85.23 |
| Jan. 13, 2026 | $81.36 |
| Jan. 12, 2026 | $80.25 |
| Jan. 9, 2026 | $80.22 |
| Jan. 8, 2026 | $80.20 |
| Jan. 7, 2026 | $82.34 |
| Jan. 6, 2026 | $82.27 |
| Jan. 5, 2026 | $84.18 |
| Jan. 2, 2026 | $87.18 |
| Dec. 31, 2025 | $87.34 |
| Dec. 30, 2025 | $87.26 |
| Dec. 29, 2025 | $87.93 |
| Dec. 26, 2025 | $88.78 |
| Dec. 24, 2025 | $88.84 |
| Dec. 23, 2025 | $88.73 |
| Dec. 22, 2025 | $87.41 |
| Dec. 19, 2025 | $86.05 |
| Dec. 18, 2025 | $85.79 |
| Dec. 17, 2025 | $89.34 |
| Dec. 16, 2025 | $91.54 |
| Dec. 15, 2025 | $94.79 |
| Dec. 12, 2025 | $95.35 |
| Dec. 11, 2025 | $92.25 |
| Dec. 10, 2025 | $91.38 |
| Dec. 9, 2025 | $88.56 |
| Dec. 8, 2025 | $90.25 |
| Dec. 5, 2025 | $89.65 |
| Dec. 4, 2025 | $87.33 |
| Dec. 3, 2025 | $86.07 |
| Dec. 2, 2025 | $84.65 |
| Dec. 1, 2025 | $85.64 |
| Nov. 28, 2025 | $90.00 |
| Nov. 26, 2025 | $90.07 |
| Nov. 25, 2025 | $89.86 |
| Nov. 24, 2025 | $87.69 |
| Nov. 21, 2025 | $85.40 |
| Nov. 20, 2025 | $84.20 |
| Nov. 19, 2025 | $85.13 |
| Nov. 18, 2025 | $84.39 |
| Nov. 17, 2025 | $84.77 |
| Nov. 14, 2025 | $84.61 |
| Nov. 13, 2025 | $83.24 |
| Nov. 12, 2025 | $84.85 |
| Nov. 11, 2025 | $85.56 |
| Nov. 10, 2025 | $83.23 |
| Nov. 7, 2025 | $79.54 |
| Nov. 6, 2025 | $79.78 |
| Nov. 5, 2025 | $77.88 |
| Nov. 4, 2025 | $76.50 |
| Nov. 3, 2025 | $75.95 |
| Oct. 31, 2025 | $78.62 |
| Oct. 30, 2025 | $77.85 |
| Oct. 29, 2025 | $76.69 |
| Oct. 28, 2025 | $78.51 |
| Oct. 27, 2025 | $75.25 |
Key figures
- 52-week range
- $74.86–$158.62Low Oct. 24, 2025; high Aug. 17, 2026
- Average daily volume
- 652,697Past 3 months
- Market value
- $9.08B
- Dividend yield
- —
- From 52-week high
- −11.54%
Price change
- 1 month
- −1.09%
- 3 months
- +3.09%
- Year to date
- +60.66%
- 1 year
- +87.44%
$1,000 a year ago
$1,000 put into PTGX at the close on Oct. 24, 2025 would be worth $1,874.
Price only, dividends not included.
What Wall Street says about PTGX
In the past 90 days, Wall Street firms published 13 rating or price-target actions on PTGX: 1 upgrade, 2 new ratings and 10 raised price targets.
| Action | Rating | |||
|---|---|---|---|---|
| TD Cowen | Raises target | Buy | $155 to $160 | |
| Leerink Partners | Assumes coverage | Outperform | $150 to $190 | |
| UBS | Initiates coverage | Buy | $184 | |
| Barclays | Raises target | Overweight | $153 to $180 | |
| BMO Capital | Raises target | Outperform | $178 to $190 | |
| Citigroup | Raises target | Buy | $175 to $182 | |
| HC Wainwright & Co. | Raises target | Buy | $167 to $170 | |
| BMO Capital | Raises target | Outperform | $112 to $178 | |
| Goldman Sachs | Upgrade | Neutral to Buy | $110 to $186 | |
| Truist Securities | Raises target | Buy | $145 to $170 | |
| Wedbush | Raises target | Outperform | $118 to $173 | |
| Barclays | Raises target | Overweight | $151 to $153 | |
| Citigroup | Raises target | Buy | $130 to $175 |
Ratings and price targets are the firms’ own opinions, reported as published.
Not investment advice.
About Protagonist Therapeutics, Inc
Protagonist Therapeutics Inc is a biopharmaceutical company engaged in the discovery and development of peptide-based therapeutics using its proprietary technology platform. The company focuses on three therapeutic areas: inflammation and immunology, hematology, and metabolic diseases. Its pipeline includes clinical-stage and preclinical candidates such as rusfertide for polycythemia vera, icotrokinra for inflammatory diseases, and other programs targeting IL-17, obesity, and iron metabolism disorders, developed through internal research and strategic collaborations.
- Headquarters
- Newark, Calif.
- Employees
- 141
- Listed
- Aug. 11, 2016
- Sector
- Health care
- Industry
- Pharmaceutical preparations
In WallStreetDigest editions
No WallStreetDigest article about PTGX is on the site yet.