Growth Metrics

Prothena Corp Public (PRTA) Equity Average (2016 - 2025)

Prothena Corp Public has reported Equity Average over the past 13 years, most recently at $287.7 million for Q4 2025.

  • Quarterly results put Equity Average at $287.7 million for Q4 2025, down 43.65% from a year ago — trailing twelve months through Dec 2025 was $287.7 million (down 43.65% YoY), and the annual figure for FY2025 was $383.7 million, down 26.8%.
  • Equity Average for Q4 2025 was $287.7 million at Prothena Corp Public, down from $309.7 million in the prior quarter.
  • Over the last five years, Equity Average for PRTA hit a ceiling of $614.7 million in Q1 2023 and a floor of $209.3 million in Q1 2021.
  • Median Equity Average over the past 5 years was $470.3 million (2021), compared with a mean of $455.7 million.
  • Biggest five-year swings in Equity Average: skyrocketed 143.07% in 2021 and later crashed 44.52% in 2025.
  • Prothena Corp Public's Equity Average stood at $478.3 million in 2021, then increased by 7.34% to $513.3 million in 2022, then grew by 14.8% to $589.3 million in 2023, then decreased by 13.35% to $510.6 million in 2024, then crashed by 43.65% to $287.7 million in 2025.
  • The last three reported values for Equity Average were $287.7 million (Q4 2025), $309.7 million (Q3 2025), and $381.0 million (Q2 2025) per Business Quant data.