Balance Sheet
Cash Flow Statement
Amortizatization of IntangiblesCapital ExpendituresCash from Financing ActivitiesCash from Investing ActivitiesCash from OperationsCash from RestructuringChange in Accured ExpensesChange in CashDeferred TaxesDepreciation & Amortization (CF)Depreciation and DepletionFree Cash FlowGains from Investment SecuritiesNet Cash FlowNet IncomeOther Working Capital ChangesShare-based CompensationShares Issued
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Prothena Corp Public (PRTA) Free Cash Flow (2016 - 2025)

Prothena Corp Public (PRTA) has 14 years of Free Cash Flow data on record, last reported at -$23.3 million in Q4 2025.

  • For Q4 2025, Free Cash Flow rose 51.25% year-over-year to -$23.3 million; the TTM value through Dec 2025 reached -$163.7 million, down 8.89%, while the annual FY2025 figure was -$163.7 million, 8.89% down from the prior year.
  • Free Cash Flow reached -$23.3 million in Q4 2025 per PRTA's latest filing, up from -$40.6 million in the prior quarter.
  • Across five years, Free Cash Flow topped out at $111.9 million in Q3 2021 and bottomed at -$73.2 million in Q1 2024.
  • Average Free Cash Flow over 5 years is -$23.4 million, with a median of -$36.4 million recorded in 2022.
  • Peak YoY movement for Free Cash Flow: surged 674.42% in 2021, then tumbled 925.69% in 2023.
  • A 5-year view of Free Cash Flow shows it stood at -$22.8 million in 2021, then skyrocketed by 77.49% to -$5.1 million in 2022, then crashed by 925.69% to -$52.6 million in 2023, then rose by 9.07% to -$47.8 million in 2024, then soared by 51.25% to -$23.3 million in 2025.
  • Per Business Quant database, its latest 3 readings for Free Cash Flow were -$23.3 million in Q4 2025, -$40.6 million in Q3 2025, and -$46.4 million in Q2 2025.