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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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Ratios

Prothena Corp Public (PRTA) Tax Rate (2016 - 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.
  • Prothena Corp Public's 5-year Tax Rate high stood at 7.31% for Q2 2023, and its period low was 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).
  • Its Tax Rate has fluctuated over the past 5 years, first plummeted by -882300bps in 2022, then skyrocketed by 928200bps in 2023.
  • Over the past 5 years, Prothena Corp Public's Tax Rate (Quarter) stood at 0.14% in 2021, then crashed by -63481bps to 88.37% in 2022, then soared by 105bps to 4.45% in 2023, then crashed by -43bps to 2.55% in 2024, then crashed 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.