Protagonist Therapeutics, Inc. Share Price
NASDAQ: PTGX | Mid CapProtagonist Therapeutics, Inc. Stock Performance
Protagonist Therapeutics, Inc. Share Price Today
As of 31 October 2026, Protagonist Therapeutics, Inc.'s share price is $144.93. The stock opened at $143.86, compared to its previous close of $144.37. During today's trading session, Protagonist Therapeutics, Inc.'s share price traded between $142.83 and $145.44, with an average price of $144.13. Over the past 52 weeks, the stock has recorded a high of $159.99 and a low of $75.53. In terms of performance, Protagonist Therapeutics, Inc.'s share price has risen by 46.50% over the last six months and is up 84.32% 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 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.
Protagonist Therapeutics, Inc. Historical Returns
| Month | Open | Close | Change % |
|---|---|---|---|
Oct 2026 | $138.43 | $144.85 | +2.74% |
Sep 2026 | $147.60 | $140.99 | -5.73% |
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% |