Prothena Corp Public (PRTA) Enterprise Value (2012 - 2026)

Prothena Corp Public's Enterprise Value history runs 15 years deep, the most recent figure standing at -$329.5 million for Q1 2026.

• In Q1 2026, Enterprise Value rose 21.17% year-over-year to -$329.5 million; the TTM figure through Mar 2026 stood at -$329.5 million (up 21.17% YoY), while the FY2025 annual figure was -$307.5 million, up 34.76% from the prior year.
• Enterprise Value was -$329.5 million for Q1 2026 at Prothena Corp Public, down from -$307.5 million in the prior quarter.
• In the past five years, Enterprise Value ranged from a high of -$307.5 million in Q4 2025 to a low of -$710.4 million in Q4 2022.
• Historically, Enterprise Value has averaged -$515.1 million across 5 years, with a median of -$519.3 million in 2024.
• The sharpest annual moves came in 2022 and 2025: Enterprise Value sank 57.69% in 2022, then surged 36.29% in 2025.
• A 5-year view of Enterprise Value shows it stood at -$710.4 million in 2022, then climbed by 12.7% to -$620.2 million in 2023, then gained by 23.99% to -$471.4 million in 2024, then soared by 34.76% to -$307.5 million in 2025, then retreated by 7.13% to -$329.5 million in 2026.
• The last three Enterprise Value figures came in at -$329.5 million (Q1 2026), -$307.5 million (Q4 2025), and -$330.8 million (Q3 2025), per Business Quant data.