CompaniesByCap
PRTA
Prothena Corporation plc (PRTA)
NASDAQ · Healthcare

Prothena Corporation plc Shares Outstanding 2012–2025

Prothena Corporation plc annual/quarterly shares outstanding history and growth rate from 2012 to 2026. Shares outstanding refers to a company's stock currently held by all its shareholders, including institutional investors and company insiders.

  • Prothena Corporation plc shares outstanding for the quarter ending March 31, 2026 was 0.05 B shs, a 0.52% increase year-over-year.
  • Prothena Corporation plc annual shares outstanding for 2025 was 0.05 B shs, a 0.11% increase from 2024.
  • Prothena Corporation plc annual shares outstanding for 2024 was 0.05 B shs, a 1.04% increase from 2023.
  • Prothena Corporation plc annual shares outstanding for 2023 was 0.05 B shs, a 12.34% increase from 2022.
  • Prothena Corporation plc annual shares outstanding for 2022 was 0.05 B shs.
Shares Outstanding
ANNUAL · B SHS
QUARTERLY · B SHS
YEAR-OVER-YEAR GROWTH · %

Prothena Corporation plc Shares Outstanding — FAQ

Prothena Corporation plc (PRTA) shares outstanding over the last 14 years — annual and quarterly figures with year-over-year growth and charts.

What is Prothena Corporation plc's shares outstanding?

Prothena Corporation plc (PRTA) reported shares outstanding of 0.05B shares for fiscal 2025.

Where can I see PRTA's shares outstanding history?

The chart and table above show Prothena Corporation plc's shares outstanding by year and by quarter, including the growth rate.