Prothena (PRTA) - Stock price history

Stock price history of Prothena from 2012 to 2025

Stock price for similar companies or competitors

Company	Stock price	Change 1d%	Country
Alkermes ALKS	$35.32	-0.51%	🇮🇪 Ireland
Alnylam Pharmaceuticals ALNY	$250.59	-0.16%	🇺🇸 USA
Amarin Corporation AMRN	$0.59	-0.82%	🇮🇪 Ireland

What is the market capitalization of a company?

The market capitalization sometimes referred as Marketcap, is the value of a publicly listed company.
In most cases it can be easily calculated by multiplying the share price with the amount of outstanding shares.

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