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Prothena Corp Public (PRTA) Shares Outstanding: 2012-2025

Historic Shares Outstanding for Prothena Corp Public (PRTA) over the last 8 years, with Sep 2025 value amounting to $53.8 million.

  • Prothena Corp Public's Shares Outstanding rose 0.04% to $53.8 million in Q3 2025 from the same period last year, while for Sep 2025 it was $53.8 million, marking a year-over-year increase of 0.04%. This contributed to the annual value of $53.8 million for FY2024, which is 0.27% up from last year.
  • According to the latest figures from Q3 2025, Prothena Corp Public's Shares Outstanding is $53.8 million, which was up 0.01% from $53.8 million recorded in Q2 2025.
  • Over the past 5 years, Prothena Corp Public's Shares Outstanding peaked at $53.8 million during Q3 2025, and registered a low of $44.2 million during Q1 2021.
  • For the 3-year period, Prothena Corp Public's Shares Outstanding averaged around $53.6 million, with its median value being $53.8 million (2024).
  • Data for Prothena Corp Public's Shares Outstanding shows a peak YoY increased of 16.88% (in 2021) over the last 5 years.
  • Prothena Corp Public's Shares Outstanding (Quarterly) stood at $46.7 million in 2021, then climbed by 11.67% to $52.1 million in 2022, then rose by 3.03% to $53.7 million in 2023, then grew by 0.27% to $53.8 million in 2024, then increased by 0.04% to $53.8 million in 2025.
  • Its last three reported values are $53.8 million in Q3 2025, $53.8 million for Q2 2025, and $53.8 million during Q1 2025.