Balance Sheet
Cash Flow Statement
Daily Values
Growth Metrics
Income Statement
Consolidated Net IncomeEBITEBITDAEBTEPS (Basic)EPS (Weighted Average and Diluted)Gross ProfitIncome 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) Profit After Tax: 2012-2025

Historic Profit After Tax for Prothena Corp Public (PRTA) over the last 14 years, with Sep 2025 value amounting to -$36.5 million.

  • Prothena Corp Public's Profit After Tax rose 38.07% to -$36.5 million in Q3 2025 from the same period last year, while for Sep 2025 it was -$280.5 million, marking a year-over-year decrease of 112.74%. This contributed to the annual value of -$122.3 million for FY2024, which is 16.81% up from last year.
  • Prothena Corp Public's Profit After Tax amounted to -$36.5 million in Q3 2025, which was up 70.95% from -$125.8 million recorded in Q2 2025.
  • Prothena Corp Public's 5-year Profit After Tax high stood at $109.2 million for Q3 2021, and its period low was -$125.8 million during Q2 2025.
  • For the 3-year period, Prothena Corp Public's Profit After Tax averaged around -$44.7 million, with its median value being -$58.0 million (2024).
  • As far as peak fluctuations go, Prothena Corp Public's Profit After Tax surged by 457.28% in 2021, and later tumbled by 1,162.78% in 2023.
  • Prothena Corp Public's Profit After Tax (Quarterly) stood at -$33.2 million in 2021, then soared by 119.14% to $6.3 million in 2022, then slumped by 1,162.78% to -$67.5 million in 2023, then climbed by 14.11% to -$58.0 million in 2024, then spiked by 38.07% to -$36.5 million in 2025.
  • Its Profit After Tax stands at -$36.5 million for Q3 2025, versus -$125.8 million for Q2 2025 and -$60.2 million for Q1 2025.