Company Profile
Protagonist Therapeutics Inc Stock Price, News & Analysis
- Ticker:
- PTGX
- Exchange:
- NASDAQ
- Sector:
- Biopharma
- Location:
- United States
Stock performance
146.18 USD (+6.45%)
Close
Last updated: August 6, 2026
6B USD
Market cap
Why the stock is moving
As of Aug 6, 2026, PTGX closed up 6.45% at $146.18. No new same-company headline was identified in the current news window.
Company overview
Business overview
Protagonist Therapeutics is a biotechnology company focused on peptide-based medicines and inflammatory disease. Its story is built around using peptide chemistry and targeted biology to address immune-mediated disorders.
Geographic Base and Sector Classification
Protagonist is headquartered in the United States and listed on NASDAQ. It sits in specialty immunology biotechnology.
Business Model Characteristics
The company depends on clinical validation, partnership strategy, and the ability to create value from a focused pipeline. Investors watch data, launch prospects, and strategic updates.
Position Within the Biotechnology Landscape
Protagonist occupies a premium peptide-immunology niche within biotech. It has meaningful platform depth, but remains sensitive to clinical and partnership milestones.
Future catalysts
Protagonist's catalysts are icotrokinra and the broader inflammatory-disease pipeline, where clinical and regulatory updates can materially move the stock. The company remains highly data-sensitive.
Recent news
Similar stocks
Peer names with similar commercial maturity, therapeutic overlap, or catalyst patterns.
Frequently Asked Questions
What is the current stock price of Protagonist Therapeutics Inc (PTGX)?
Protagonist Therapeutics Inc (PTGX) most recently closed at 146.18 USD, a +6.45% move versus the previous session.
What is the market cap of Protagonist Therapeutics Inc (PTGX)?
Protagonist Therapeutics Inc currently has a market capitalization of 6B USD on BioPharmSignal.
What does Protagonist Therapeutics Inc do?
Protagonist Therapeutics is a biotechnology company focused on peptide-based medicines and inflammatory disease. Its story is built around using peptide chemistry and targeted biology to address immune-mediated disorders.
On which exchange is PTGX stock listed?
Protagonist Therapeutics Inc (PTGX) is associated with NASDAQ, United States, Biopharma.
What is Protagonist?
Protagonist's catalysts are icotrokinra and the broader inflammatory-disease pipeline, where clinical and regulatory updates can materially move the stock.
Which conditions is Protagonist Therapeutics Inc targeting with Protagonist?
Protagonist's catalysts are icotrokinra and the broader inflammatory-disease pipeline, where clinical and regulatory updates can materially move the stock.
How does Protagonist Therapeutics Inc describe recent progress with Protagonist?
Protagonist's catalysts are icotrokinra and the broader inflammatory-disease pipeline, where clinical and regulatory updates can materially move the stock.
What is Therapeutics?
Protagonist Therapeutics is a biotechnology company focused on peptide-based medicines and inflammatory disease.