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Prothena Corp Public (PRTA) Tax Provisions: 2012-2025

Historic Tax Provisions for Prothena Corp Public (PRTA) over the last 13 years, with Sep 2025 value amounting to -$400,000.

  • Prothena Corp Public's Tax Provisions rose 52.10% to -$400,000 in Q3 2025 from the same period last year, while for Sep 2025 it was $41.7 million, marking a year-over-year increase of 607.27%. This contributed to the annual value of -$6.6 million for FY2024, which is 50.79% up from last year.
  • Latest data reveals that Prothena Corp Public reported Tax Provisions of -$400,000 as of Q3 2025, which was down 100.89% from $44.8 million recorded in Q2 2025.
  • In the past 5 years, Prothena Corp Public's Tax Provisions ranged from a high of $44.8 million in Q2 2025 and a low of -$4.3 million during Q2 2023.
  • In the last 3 years, Prothena Corp Public's Tax Provisions had a median value of -$2.0 million in 2024 and averaged $2.1 million.
  • In the last 5 years, Prothena Corp Public's Tax Provisions soared by 2,450.00% in 2021 and then plummeted by 6,526.09% in 2022.
  • Prothena Corp Public's Tax Provisions (Quarterly) stood at $46,000 in 2021, then crashed by 6,526.09% to -$3.0 million in 2022, then decreased by 6.29% to -$3.1 million in 2023, then skyrocketed by 51.62% to -$1.5 million in 2024, then surged by 52.10% to -$400,000 in 2025.
  • Its Tax Provisions stands at -$400,000 for Q3 2025, versus $44.8 million for Q2 2025 and -$1.2 million for Q1 2025.