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.

• In Q1 2026, EBT rose 153.32% year-over-year to $32.7 million; the TTM figure through Mar 2026 stood at -$106.7 million (up 7.88% YoY), while the FY2025 annual figure was -$200.8 million, down 55.77% from the prior year.
• EBT was $32.7 million for Q1 2026 at Prothena Corp Public, up from -$21.6 million in the prior quarter.
• In the past five years, EBT ranged from a high of $64.8 million in Q2 2024 to a low of -$81.0 million in Q2 2025.
• Historically, EBT has averaged -$34.3 million across 5 years, with a median of -$48.4 million in 2022.
• The sharpest annual moves came in 2023 and 2024: EBT tumbled 2211.15% in 2023, then soared 210.09% in 2024.
• A 5-year view of EBT shows it stood at $3.3 million in 2022, then sank 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.
• The last three EBT figures came in at $32.7 million (Q1 2026), -$21.6 million (Q4 2025), and -$36.9 million (Q3 2025), per Business Quant data.