Balance Sheet
Cash Flow Statement
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Prothena Corp Public (PRTA) Gains from Investment Securities (2019 - 2025)

Prothena Corp Public has reported Gains from Investment Securities over the past 8 years, most recently at -$715000.0 for Q3 2025.

  • Quarterly results put Gains from Investment Securities at -$715000.0 for Q3 2025, up 47.39% from a year ago — trailing twelve months through Dec 2025 was $224000.0 (up 3.23% YoY), and the annual figure for FY2025 was $224000.0, up 3.23%.
  • Gains from Investment Securities for Q3 2025 was -$715000.0 at Prothena Corp Public, down from $941000.0 in the prior quarter.
  • Over the last five years, Gains from Investment Securities for PRTA hit a ceiling of $3.5 million in Q3 2023 and a floor of -$3.8 million in Q4 2023.
  • Median Gains from Investment Securities over the past 5 years was $16000.0 (2021), compared with a mean of $72312.5.
  • Peak annual rise in Gains from Investment Securities hit 501.49% in 2022, while the deepest fall reached 359.15% in 2022.
  • Prothena Corp Public's Gains from Investment Securities stood at $12000.0 in 2021, then plummeted by 12366.67% to -$1.5 million in 2022, then tumbled by 159.85% to -$3.8 million in 2023, then surged by 64.47% to -$1.4 million in 2024, then soared by 47.39% to -$715000.0 in 2025.
  • The last three reported values for Gains from Investment Securities were -$715000.0 (Q3 2025), $941000.0 (Q2 2025), and -$2000.0 (Q1 2025) per Business Quant data.