Prothena Corp Public (PRTA) Retained Earnings (2012 - 2026)

Prothena Corp Public's Retained Earnings history runs 15 years deep, the most recent figure standing at $1.6 billion for Q1 2026.

• On a quarterly basis, Retained Earnings rose 235.48% year-over-year to $1.6 billion in Q1 2026; TTM through Mar 2026 was $1.6 billion, a 235.48% increase from a year earlier, with the FY2025 full-year figure at $1.6 billion, up 2.37% from the prior year.
• Retained Earnings was little changed at $1.6 billion in Q1 2026 per PRTA's latest filing, from $1.6 billion in the prior quarter.
• Across five years, Retained Earnings topped out at $1.6 billion in Q4 2025 and bottomed at -$1.3 billion in Q3 2025.
• The 5-year median for Retained Earnings is -$752.3 million (2022), against an average of $186.6 million.
• Across the five-year window, Retained Earnings surged 282.1% in 2022 and slumped 183.95% in 2025, its largest moves.
• Year by year, Retained Earnings stood at $1.5 billion in 2022, then slumped by 167.38% to -$980.0 million in 2023, then surged by 262.11% to $1.6 billion in 2024, then rose by 2.37% to $1.6 billion in 2025, then fell by 0.04% to $1.6 billion in 2026.
• Per Business Quant, the three latest PRTA Retained Earnings figures stand at $1.6 billion (Q1 2026), $1.6 billion (Q4 2025), and -$1.3 billion (Q3 2025).