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 OutstandingShares Outstanding (Diluted Average)Shares Outstanding (Weighted Average)Tax ProvisionsTax Rate
Others
Ratios

Prothena Corp Public (PRTA) Net Income towards Common Stockholders (2016 - 2025)

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

  • For Q4 2025, Net Income towards Common Stockholders rose 62.71% year-over-year to -$21.6 million; the TTM value through Dec 2025 reached -$244.1 million, down 99.57%, while the annual FY2025 figure was -$244.1 million, 99.57% down from the prior year.
  • Net Income towards Common Stockholders reached -$21.6 million in Q4 2025 per PRTA's latest filing, up from -$36.5 million in the prior quarter.
  • Across five years, Net Income towards Common Stockholders topped out at $109.2 million in Q3 2021 and bottomed at -$125.7 million in Q2 2025.
  • Average Net Income towards Common Stockholders over 5 years is -$28.2 million, with a median of -$39.0 million recorded in 2021.
  • Peak YoY movement for Net Income towards Common Stockholders: surged 457.28% in 2021, then tumbled 1162.62% in 2023.
  • A 5-year view of Net Income towards Common Stockholders shows it stood at -$33.1 million in 2021, then soared by 119.16% to $6.3 million in 2022, then crashed by 1162.62% to -$67.5 million in 2023, then grew by 14.1% to -$58.0 million in 2024, then surged by 62.71% to -$21.6 million in 2025.
  • Per Business Quant database, its latest 3 readings for Net Income towards Common Stockholders were -$21.6 million in Q4 2025, -$36.5 million in Q3 2025, and -$125.7 million in Q2 2025.