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Protagonist Therapeutics

PTGX 128.75 -5.71%

Close of 16 October 2026, in USD — never converted.

Protagonist Therapeutics — daily PTGX Delayed

Chart and prices are provided by TradingView. Global Banking & Finance Review publishes no price data on this page. Nothing here is investment advice. How we cover markets.

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Frequently asked questions

What is Protagonist Therapeutics's ticker?

Protagonist Therapeutics trades as PTGX on its US listing, under ISIN US74366E1029.

What was Protagonist Therapeutics's last closing price?

128.75 on 16 October 2026. The figure is in USD and is never converted.

Does Global Banking & Finance Review publish price data for Protagonist Therapeutics?

We publish the closing prices we record ourselves, in the currency the instrument trades in. Charts and live quotes come from TradingView. Nothing on this page is investment advice.