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Prothena Corp Public (PRTA) Profit After Tax: 2011-2024

Historic Profit After Tax for Prothena Corp Public (PRTA) over the last 14 years, with Dec 2024 value amounting to -$122.3 million.

  • Prothena Corp Public's Profit After Tax rose 38.07% 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 112.74%. This contributed to the annual value of -$122.3 million for FY2024, which is 16.81% up from last year.
  • As of FY2024, Prothena Corp Public's Profit After Tax stood at -$122.3 million, which was up 16.81% from -$147.0 million recorded in FY2023.
  • In the past 5 years, Prothena Corp Public's Profit After Tax registered a high of $67.0 million during FY2021, and its lowest value of -$147.0 million during FY2023.
  • Its 3-year average for Profit After Tax is -$128.8 million, with a median of -$122.3 million in 2024.
  • Per our database at Business Quant, Prothena Corp Public's Profit After Tax skyrocketed by 160.26% in 2021 and then crashed by 274.62% in 2022.
  • Yearly analysis of 5 years shows Prothena Corp Public's Profit After Tax stood at -$111.1 million in 2020, then spiked by 160.26% to $67.0 million in 2021, then plummeted by 274.62% to -$116.9 million in 2022, then fell by 25.72% to -$147.0 million in 2023, then rose by 16.81% to -$122.3 million in 2024.