Protagonist Therapeutics, Inc. Share Price
NASDAQ: PTGX | Mid CapProtagonist Therapeutics, Inc. Stock Performance
Protagonist Therapeutics, Inc. Share Price Today
As of 20 September 2026, Protagonist Therapeutics, Inc.'s share price is $142.96. The stock opened at $142.16, compared to its previous close of $143.71. During today's trading session, Protagonist Therapeutics, Inc.'s share price traded between $141.60 and $144.40, with an average price of $143.00. Over the past 52 weeks, the stock has recorded a high of $159.99 and a low of $59.13. In terms of performance, Protagonist Therapeutics, Inc.'s share price has risen by 35.46% over the last six months and is up 115.20% on a year-on-year basis.
Protagonist Therapeutics, Inc. Share Price Chart
Protagonist Therapeutics, Inc. Quarterly Profit & Loss
All figures in USD
Protagonist Therapeutics, Inc. Annual Profit & Loss
All figures in USD
About Protagonist Therapeutics, Inc.
Protagonist Therapeutics, Inc., a biopharmaceutical company, develops peptide therapeutics for hematology and blood disorders, and inflammatory and immunomodulatory diseases. It is developing Rusfertide, an injectable mimetic of hepcidin that is in phase 3 clinical trials for the treatment of polycythemia vera; Icotrokinra, an orally delivered investigational drug which is in phase 3 clinical trials indicated to block biological pathways targeted by marketed injectable antibody drugs; and PN-943, an orally delivered, gut-restricted alpha 4 beta 7 specific integrin antagonist completed a phase 2 clinical trials in patients with moderate to severe ulcerative colitis. The company also develops IL-17 oral peptide antagonist PN-88,1 an oral metabolic/obesity peptide program, and an oral hepcidin mimetic/ferroportin blocker that is in pre-clinical stage. Protagonist Therapeutics, Inc. was incorporated in 2006 and is headquartered in Newark, California.
Protagonist Therapeutics, Inc. Historical Returns
| Month | Open | Close | Change % |
|---|---|---|---|
Sep 2026 | $147.60 | $142.99 | -4.39% |
Aug 2026 | $135.91 | $149.56 | +9.32% |
Jul 2026 | $123.85 | $136.81 | +11.83% |
Jun 2026 | $97.85 | $122.34 | +22.92% |
May 2026 | $99.13 | $99.53 | +0.61% |
Apr 2026 | $106.41 | $98.93 | -6.26% |
Mar 2026 | $91.34 | $105.54 | +14.57% |
Feb 2026 | $81.56 | $92.11 | +12.61% |
Jan 2026 | $86.93 | $81.80 | -6.29% |
Dec 2025 | $89.25 | $87.30 | -2.90% |
Nov 2025 | $79.14 | $89.90 | +14.33% |
Oct 2025 | $65.98 | $78.63 | +18.37% |
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