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Consolidated Net IncomeEBITEBITDAEBTEPS (Basic)EPS (Weighted Average and Diluted)Income from Continuing OperationsIncome towards Parent CompanyNet Income towards Common StockholdersNon Operating IncomeOperating ExpensesOperating IncomeOther Non Operating IncomeOther Operating ExpensesProfit After TaxResearch & DevelopmentRevenueSelling, General & AdministrativeShares Outstanding (Diluted Average)Shares Outstanding (Weighted Average)Tax ProvisionsTax Rate
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Prothena Corp Public (PRTA) EBT (2016 - 2025)

Prothena Corp Public has reported EBT over the past 14 years, most recently at -$21.6 million for Q4 2025.

  • Quarterly results put EBT at -$21.6 million for Q4 2025, up 63.73% from a year ago — trailing twelve months through Dec 2025 was -$200.8 million (down 55.77% YoY), and the annual figure for FY2025 was -$200.8 million, down 55.77%.
  • EBT for Q4 2025 was -$21.6 million at Prothena Corp Public, up from -$36.9 million in the prior quarter.
  • Over the last five years, EBT for PRTA hit a ceiling of $109.2 million in Q3 2021 and a floor of -$81.0 million in Q2 2025.
  • Median EBT over the past 5 years was -$40.3 million (2022), compared with a mean of -$27.2 million.
  • Biggest five-year swings in EBT: skyrocketed 454.62% in 2021 and later tumbled 2211.15% in 2023.
  • Prothena Corp Public's EBT stood at -$33.1 million in 2021, then soared by 110.11% to $3.3 million in 2022, then tumbled by 2211.15% to -$70.6 million in 2023, then rose by 15.74% to -$59.5 million in 2024, then soared by 63.73% to -$21.6 million in 2025.
  • The last three reported values for EBT were -$21.6 million (Q4 2025), -$36.9 million (Q3 2025), and -$81.0 million (Q2 2025) per Business Quant data.