Prothena Corp Public (PRTA) Equity Average (2013 - 2026)

Prothena Corp Public's Equity Average history runs 14 years deep, the most recent figure standing at $296.5 million for Q1 2026.

• In Q1 2026, Equity Average fell 35.85% year-over-year to $296.5 million; the TTM figure through Mar 2026 stood at $296.5 million (down 35.85% YoY), while the FY2025 annual figure was $383.7 million, down 26.8% from the prior year.
• Equity Average was $296.5 million for Q1 2026 at Prothena Corp Public, up from $287.7 million in the prior quarter.
• In the past five years, Equity Average ranged from a high of $614.7 million in Q1 2023 to a low of $287.7 million in Q4 2025.
• Historically, Equity Average has averaged $474.9 million across 5 years, with a median of $510.6 million in 2024.
• The sharpest annual moves came in 2022 and 2025: Equity Average soared 116.19% in 2022, then sank 44.52% in 2025.
• A 5-year view of Equity Average shows it stood at $513.3 million in 2022, then rose by 14.8% to $589.3 million in 2023, then dropped by 13.35% to $510.6 million in 2024, then slumped by 43.65% to $287.7 million in 2025, then climbed by 3.06% to $296.5 million in 2026.
• The last three Equity Average figures came in at $296.5 million (Q1 2026), $287.7 million (Q4 2025), and $309.7 million (Q3 2025), per Business Quant data.