Prothena - 12 Year Stock Price History | PRTA

The latest closing stock price for Prothena as of November 20, 2024 is 14.40.

  • An investor who bought $1,000 worth of Prothena stock at the IPO in 2012 would have $1,000 today, roughly 1 times their original investment - a 5.95% compound annual growth rate over 12 years.
  • The all-time high Prothena stock closing price was 78.89 on September 23, 2021.
  • The Prothena 52-week high stock price is 41.55, which is 188.5% above the current share price.
  • The Prothena 52-week low stock price is 13.22, which is 8.2% below the current share price.
  • The average Prothena stock price for the last 52 weeks is 24.31.
For more information on how our historical price data is adjusted see the Stock Price Adjustment Guide.

Prothena - 12 Year Stock Price History | PRTA

  • An investor who bought $1,000 worth of Prothena stock at the IPO in 2012 would have $1,000 today, roughly 1 times their original investment - a 5.95% compound annual growth rate over 12 years.
  • The all-time high Prothena stock closing price was 78.89 on September 23, 2021.
  • The Prothena 52-week high stock price is 41.55, which is 188.5% above the current share price.
  • The Prothena 52-week low stock price is 13.22, which is 8.2% below the current share price.
  • The average Prothena stock price for the last 52 weeks is 24.31.
For more information on how our historical price data is adjusted see the Stock Price Adjustment Guide.