Prothena Corp Public (PRTA) Research & Development (2012 - 2026)

Prothena Corp Public's Research & Development history runs 15 years deep, the most recent figure standing at $12.6 million for Q1 2026.

• On a quarterly basis, Research & Development fell 75.15% year-over-year to $12.6 million in Q1 2026; TTM through Mar 2026 was $96.7 million, a 53.8% decrease from a year earlier, with the FY2025 full-year figure at $134.9 million, down 39.4% from the prior year.
• Research & Development fell to $12.6 million in Q1 2026 per PRTA's latest filing, from $14.6 million in the prior quarter.
• Across five years, Research & Development topped out at $64.1 million in Q1 2024 and bottomed at $12.6 million in Q1 2026.
• The 5-year median for Research & Development is $44.8 million (2023), against an average of $42.7 million.
• Across the five-year window, Research & Development jumped 121.54% in 2022 and tumbled 75.15% in 2026, its largest moves.
• Year by year, Research & Development stood at $36.9 million in 2022, then surged by 67.86% to $61.9 million in 2023, then dropped by 18.93% to $50.2 million in 2024, then sank by 70.93% to $14.6 million in 2025, then dropped by 13.43% to $12.6 million in 2026.
• Per Business Quant, the three latest PRTA Research & Development figures stand at $12.6 million (Q1 2026), $14.6 million (Q4 2025), and $28.9 million (Q3 2025).