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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 OutstandingShares Outstanding (Diluted Average)Shares Outstanding (Weighted Average)Tax ProvisionsTax Rate
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Prothena Corp Public (PRTA) EBT (2016 - 2025)

Prothena Corp Public (PRTA) has 14 years of EBT data on record, last reported at -$21.6 million in Q4 2025.

  • For Q4 2025, EBT rose 63.73% year-over-year to -$21.6 million; the TTM value through Dec 2025 reached -$200.8 million, down 55.77%, while the annual FY2025 figure was -$200.8 million, 55.77% down from the prior year.
  • EBT reached -$21.6 million in Q4 2025 per PRTA's latest filing, up from -$36.9 million in the prior quarter.
  • Across five years, EBT topped out at $109.2 million in Q3 2021 and bottomed at -$81.0 million in Q2 2025.
  • Average EBT over 5 years is -$27.2 million, with a median of -$40.3 million recorded in 2022.
  • Peak YoY movement for EBT: surged 454.62% in 2021, then crashed 2211.15% in 2023.
  • A 5-year view of EBT shows it stood at -$33.1 million in 2021, then surged by 110.11% to $3.3 million in 2022, then plummeted by 2211.15% to -$70.6 million in 2023, then increased by 15.74% to -$59.5 million in 2024, then surged by 63.73% to -$21.6 million in 2025.
  • Per Business Quant database, its latest 3 readings for EBT were -$21.6 million in Q4 2025, -$36.9 million in Q3 2025, and -$81.0 million in Q2 2025.