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Prothena Corp Public (PRTA) Profit After Tax (2016 - 2025)

Historic Profit After Tax for Prothena Corp Public (PRTA) over the last 14 years, with Q3 2025 value amounting to -$36.5 million.

  • Prothena Corp Public's Profit After Tax rose 3806.72% to -$36.5 million in Q3 2025 from the same period last year, while for Sep 2025 it was -$280.5 million, marking a year-over-year decrease of 11274.29%. This contributed to the annual value of -$122.3 million for FY2024, which is 1681.18% up from last year.
  • As of Q3 2025, Prothena Corp Public's Profit After Tax stood at -$36.5 million, which was up 3806.72% from -$125.8 million recorded in Q2 2025.
  • In the past 5 years, Prothena Corp Public's Profit After Tax ranged from a high of $109.2 million in Q3 2021 and a low of -$125.8 million during Q2 2025
  • In the last 5 years, Prothena Corp Public's Profit After Tax had a median value of -$41.2 million in 2022 and averaged -$28.5 million.
  • Per our database at Business Quant, Prothena Corp Public's Profit After Tax surged by 45728.49% in 2021 and then crashed by 116278.15% in 2023.
  • Over the past 5 years, Prothena Corp Public's Profit After Tax (Quarter) stood at -$33.2 million in 2021, then skyrocketed by 119.14% to $6.3 million in 2022, then tumbled by 1162.78% to -$67.5 million in 2023, then increased by 14.11% to -$58.0 million in 2024, then surged by 36.95% to -$36.5 million in 2025.
  • Its Profit After Tax stands at -$36.5 million for Q3 2025, versus -$125.8 million for Q2 2025 and -$60.2 million for Q1 2025.