Balance Sheet
Cash Flow Statement
Daily Values
Growth Metrics
Income Statement
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
Others
Ratios

Prothena Corp Public (PRTA) Operating Expenses (2016 - 2025)

Prothena Corp Public has reported Operating Expenses over the past 14 years, most recently at $24.2 million for Q4 2025.

  • Quarterly results put Operating Expenses at $24.2 million for Q4 2025, down 63.86% from a year ago — trailing twelve months through Dec 2025 was $224.3 million (down 22.57% YoY), and the annual figure for FY2025 was $224.3 million, down 22.57%.
  • Operating Expenses for Q4 2025 was $24.2 million at Prothena Corp Public, down from $42.7 million in the prior quarter.
  • Over the last five years, Operating Expenses for PRTA hit a ceiling of $89.0 million in Q2 2025 and a floor of $24.2 million in Q4 2025.
  • Median Operating Expenses over the past 5 years was $55.2 million (2022), compared with a mean of $55.5 million.
  • Biggest five-year swings in Operating Expenses: surged 73.14% in 2022 and later crashed 63.86% in 2025.
  • Prothena Corp Public's Operating Expenses stood at $34.3 million in 2021, then surged by 45.91% to $50.0 million in 2022, then soared by 57.68% to $78.8 million in 2023, then decreased by 14.98% to $67.0 million in 2024, then crashed by 63.86% to $24.2 million in 2025.
  • The last three reported values for Operating Expenses were $24.2 million (Q4 2025), $42.7 million (Q3 2025), and $89.0 million (Q2 2025) per Business Quant data.