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Asset Utilization RatioAssets AverageEBIT MarginEBITDA MarginEBT MarginEnterprise ValueEquity AverageEquity RatioFCF MarginInvested CapitalNet MarginOperating MarginReturn on AssetsReturn on Capital EmployedReturn on EquityReturn on Invested CapitalReturn on Sales

Prothena Corp Public (PRTA) Return on Equity (2016 - 2025)

Prothena Corp Public has reported Return on Equity over the past 13 years, most recently at 0.85% for Q4 2025.

  • Quarterly results put Return on Equity at 0.85% for Q4 2025, down 61.0% from a year ago — trailing twelve months through Dec 2025 was 0.85% (down 61.0% YoY), and the annual figure for FY2025 was 0.64%, down 40.0%.
  • Return on Equity for Q4 2025 was 0.85% at Prothena Corp Public, up from 0.91% in the prior quarter.
  • Over the last five years, Return on Equity for PRTA hit a ceiling of 0.18% in Q3 2021 and a floor of 0.91% in Q3 2025.
  • Median Return on Equity over the past 5 years was 0.24% (2023), compared with a mean of 0.28%.
  • Biggest five-year swings in Return on Equity: skyrocketed 74bps in 2022 and later tumbled -70bps in 2025.
  • Prothena Corp Public's Return on Equity stood at 0.14% in 2021, then plummeted by -263bps to 0.23% in 2022, then fell by -10bps to 0.25% in 2023, then rose by 4bps to 0.24% in 2024, then crashed by -254bps to 0.85% in 2025.
  • The last three reported values for Return on Equity were 0.85% (Q4 2025), 0.91% (Q3 2025), and 0.8% (Q2 2025) per Business Quant data.