Prothena Corp Public (PRTA) EBT (2012 - 2026)

Prothena Corp Public's EBT history runs 15 years deep, the most recent figure standing at $32.7 million for Q1 2026.

• On a quarterly basis, EBT rose 153.32% year-over-year to $32.7 million in Q1 2026; TTM through Mar 2026 was -$106.7 million, a 7.88% increase from a year earlier, with the FY2025 full-year figure at -$200.8 million, down 55.77% from the prior year.
• EBT climbed to $32.7 million in Q1 2026 per PRTA's latest filing, from -$21.6 million in the prior quarter.
• Across five years, EBT topped out at $64.8 million in Q2 2024 and bottomed at -$81.0 million in Q2 2025.
• The 5-year median for EBT is -$48.4 million (2022), against an average of -$34.3 million.
• Across the five-year window, EBT tumbled 2211.15% in 2023 and surged 210.09% in 2024, its largest moves.
• Year by year, EBT stood at $3.3 million in 2022, then tumbled by 2211.15% to -$70.6 million in 2023, then advanced by 15.74% to -$59.5 million in 2024, then surged by 63.73% to -$21.6 million in 2025, then jumped by 251.64% to $32.7 million in 2026.
• Per Business Quant, the three latest PRTA EBT figures stand at $32.7 million (Q1 2026), -$21.6 million (Q4 2025), and -$36.9 million (Q3 2025).