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) Tax Rate (2017 - 2025)

Historic Tax Rate for Prothena Corp Public (PRTA) over the last 14 years, with Q3 2025 value amounting to 1.08%.

  • Prothena Corp Public's Tax Rate fell 3100.0% to 1.08% in Q3 2025 from the same period last year, while for Sep 2025 it was 17.46%, marking a year-over-year decrease of 233300.0%. This contributed to the annual value of 5.13% for FY2024, which is 32500.0% down from last year.
  • Prothena Corp Public's Tax Rate amounted to 1.08% in Q3 2025, which was down 3100.0% from 55.34% recorded in Q2 2025.
  • In the past 5 years, Prothena Corp Public's Tax Rate ranged from a high of 7.31% in Q2 2023 and a low of 88.37% during Q4 2022
  • For the 5-year period, Prothena Corp Public's Tax Rate averaged around 7.18%, with its median value being 1.4% (2024).
  • Per our database at Business Quant, Prothena Corp Public's Tax Rate tumbled by -882300bps in 2022 and then surged by 928200bps in 2023.
  • Quarter analysis of 5 years shows Prothena Corp Public's Tax Rate stood at 0.14% in 2021, then plummeted by -63481bps to 88.37% in 2022, then skyrocketed by 105bps to 4.45% in 2023, then plummeted by -43bps to 2.55% in 2024, then plummeted by -58bps to 1.08% in 2025.
  • Its Tax Rate was 1.08% in Q3 2025, compared to 55.34% in Q2 2025 and 1.96% in Q1 2025.