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PTGXProtagonist Therapeutics, Inc.

PTGX Stock Price, Valuation & Chart | Protagonist Therapeutics, Inc.

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$128.75-7.80 (-5.71%)

At close · 16 Oct 2026, 08:00 pm

Sector: HealthcareIndustry: Biotechnology
OverviewFinancialsDividendsRatios

PTGX Historical price chart

PTGX Key Stats

Market Capitalization8.33B
PE Ratio125.0
EPS1.03
Trading Volume886.73K
Today's High/Low136.56/128.61
Dividend Yield0.00
52 Week High/Low160.81/73.08
Shares Outstanding64.71M
PTGX Financial Statement
PTGX Analyst ratings
PTGX Analysis & performance metrics

PTGX Company profile

Protagonist Therapeutics, Inc., a biopharmaceutical company, discovers and develops peptide-based therapeutic drugs to address hematology and blood disorders, and…

PTGX Management team

Management
Asif AliCFO
Executive Vice President & Chief Financial Officer
Mohammad Masjedizadeh Ph.D.CTO
Executive Vice President & Chief Technology Officer
Suneel K. Gupta Ph.D.
Executive Vice President of Clinical Development
Newman Yeilding
Executive Vice President, Chief Scientific Officer
Carena Spivey
Head of HR & Senior Vice President of Human Resources
Ashok Bhandari Ph.D.
EVice President & Chief Discovery Officer
Carter J. King
Executive Vice President of Business Development
Matthew M. Gosling J.D.
Executive Vice President & General Counsel
Total 8 executives

PTGX Frequently asked questions

What is Protagonist Therapeutics, Inc. (PTGX) Stock Price?

Current stock price of Protagonist Therapeutics, Inc. (PTGX) stock is $128.75. The stock price is -5.71% lower in the session. The intraday range can be seen from this page. Volume of Protagonist Therapeutics, Inc. (PTGX) stock is 886.73K.

Last updated at 16 Oct 2026, 08:00 pm.

Why is the Protagonist Therapeutics, Inc. (PTGX) stock price going up or down today?

The stock price of Protagonist Therapeutics, Inc. (PTGX) can change with earnings, company news, and overall market sentiment. Protagonist Therapeutics, Inc. operates in the Healthcare / Biotechnology market, so sector-wide moves can also affect the share price. Use the live price, percentage change, and volume on this page to judge whether a move looks meaningful.

Is the Protagonist Therapeutics, Inc. stock expensive at its current price?

Whether Protagonist Therapeutics, Inc. looks expensive depends on valuation metrics versus its growth outlook. The P/E ratio shown for PTGX on this page is 125.00. EPS on this page is 1.03. Compare those figures with peers and growth expectations before deciding if the current Protagonist Therapeutics, Inc. price is justified.

How has the stock price of Protagonist Therapeutics, Inc. (PTGX) performed historically?

Historical performance for Protagonist Therapeutics, Inc. (PTGX) is shown on the price chart on this page. Review multi-period moves alongside volume to see how PTGX reacted to past earnings and market events.

Should I buy Protagonist Therapeutics, Inc. (PTGX) stock, at this price?

Buying Protagonist Therapeutics, Inc. (PTGX) depends on your risk tolerance, time horizon, and portfolio needs. As a Healthcare name, weigh the live quote, key stats, and valuation links on this page rather than a single price point.