Prothena Corp Public annual r&d spending
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Prothena Corp Public R&D Spending Growth & History (PRTA)
Prothena Corp Public's r&d spending was $134.9M for fiscal 2025.
View full Prothena Corp Public company overviewProthena Corp Public annual r&d spending history
| Fiscal year | Period ended | R&D spending | Change | Growth |
|---|---|---|---|---|
| 2025 | 2025-12-31 | $134.9M | −$87.7M | −39.40% |
| 2024 | 2024-12-31 | $222.5M | $1.9M | +0.88% |
| 2023 | 2023-12-31 | $220.6M | $85.0M | +62.71% |
| 2022 | 2022-12-31 | $135.6M | $53.3M | +64.75% |
| 2021 | 2021-12-31 | $82.3M | $7.4M | +9.88% |
| 2020 | 2020-12-31 | $74.9M | $24.0M | +47.31% |
| 2019 | 2019-12-31 | $50.8M | −$50.3M | −49.76% |
| 2018 | 2018-12-31 | $101.2M | −$33.4M | −24.80% |
| 2017 | 2017-12-31 | $134.5M | $15.0M | +12.56% |
| 2016 | 2016-12-31 | $119.5M | $61.1M | +104.54% |
| 2015 | 2015-12-31 | $58.4M | $20.0M | +51.98% |
| 2014 | 2014-12-31 | $38.5M | $12.4M | +47.60% |
| 2013 | 2013-12-31 | $26.1M | −$8.1M | −23.69% |
| 2012 | 2012-12-31 | $34.1M | $10.0M | +41.23% |
| 2011 | 2011-12-31 | $24.2M | — | — |
Prothena Corp Public quarterly r&d spending
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| Fiscal quarter | Period ended | R&D spending | Change | YoY change |
|---|---|---|---|---|
| Q2 2026 | 2026-06-30 | $8.8M | −$31.7M | −78.29% |
| Q1 2026 | 2026-03-31 | $12.6M | −$38.2M | −75.15% |
| Q4 2025 | 2025-12-31 | $14.6M | −$35.6M | −70.93% |
| Q3 2025 | 2025-09-30 | $28.9M | −$21.8M | −42.95% |
| Q2 2025 | 2025-06-30 | $40.5M | −$17.0M | −29.55% |
| Q1 2025 | 2025-03-31 | $50.8M | −$13.3M | −20.75% |
| Q4 2024 | 2024-12-31 | $50.2M | −$11.7M | −18.93% |
| Q3 2024 | 2024-09-30 | $50.7M | −$7.2M | −12.42% |
| Q2 2024 | 2024-06-30 | $57.5M | $1.5M | +2.68% |
| Q1 2024 | 2024-03-31 | $64.1M | $19.4M | +43.25% |
| Q4 2023 | 2023-12-31 | $61.9M | $25.0M | +67.86% |
| Q3 2023 | 2023-09-30 | $57.9M | $18.1M | +45.29% |
| Q2 2023 | 2023-06-30 | $56.0M | $24.4M | +77.42% |
| Q1 2023 | 2023-03-31 | $44.8M | $17.5M | +64.17% |
| Q4 2022 | 2022-12-31 | $36.9M | $14.8M | +67.15% |
| Q3 2022 | 2022-09-30 | $39.9M | $21.9M | +121.54% |
| Q2 2022 | 2022-06-30 | $31.6M | $10.5M | +49.69% |
| Q1 2022 | 2022-03-31 | $27.3M | $6.1M | +28.93% |
| Q4 2021 | 2021-12-31 | $22.1M | $1.3M | +6.25% |
| Q3 2021 | 2021-09-30 | $18.0M | −$3.6M | −16.72% |
| Q2 2021 | 2021-06-30 | $21.1M | $3.8M | +22.11% |
| Q1 2021 | 2021-03-31 | $21.1M | $5.9M | +38.67% |
| Q4 2020 | 2020-12-31 | $20.8M | $5.3M | +34.19% |
| Q3 2020 | 2020-09-30 | $21.6M | $9.1M | +73.03% |
| Q2 2020 | 2020-06-30 | $17.3M | $7.7M | +80.23% |
| Q1 2020 | 2020-03-31 | $15.2M | $2.0M | +14.68% |
| Q4 2019 | 2019-12-31 | $15.5M | −$1.0M | −6.29% |
| Q3 2019 | 2019-09-30 | $12.5M | −$6.0M | −32.56% |
| Q2 2019 | 2019-06-30 | $9.6M | −$21.9M | −69.53% |
| Q1 2019 | 2019-03-31 | $13.3M | −$21.4M | −61.69% |
| Q4 2018 | 2018-12-31 | $16.5M | −$17.0M | −50.72% |
| Q3 2018 | 2018-09-30 | $18.5M | −$22.8M | −55.19% |
| Q2 2018 | 2018-06-30 | $31.5M | −$2.6M | −7.58% |
| Q1 2018 | 2018-03-31 | $34.7M | $9.0M | +35.05% |
| Q4 2017 | 2017-12-31 | $33.5M | −$6.3M | −15.92% |
| Q3 2017 | 2017-09-30 | $41.3M | $14.5M | +53.94% |
| Q2 2017 | 2017-06-30 | $34.0M | $1.7M | +5.17% |
| Q1 2017 | 2017-03-31 | $25.7M | $5.2M | +25.40% |
| Q4 2016 | 2016-12-31 | $39.8M | $22.0M | +122.72% |
| Q3 2016 | 2016-09-30 | $26.8M | $9.7M | +56.17% |
| Q2 2016 | 2016-06-30 | $32.4M | $19.6M | +152.98% |
| Q1 2016 | 2016-03-31 | $20.5M | $9.9M | +93.82% |
| Q4 2015 | 2015-12-31 | $17.9M | $7.8M | +77.01% |
| Q3 2015 | 2015-09-30 | $17.2M | $6.8M | +65.43% |
| Q2 2015 | 2015-06-30 | $12.8M | $4.2M | +48.47% |
| Q1 2015 | 2015-03-31 | $10.6M | $1.2M | +13.18% |
| Q4 2014 | 2014-12-31 | $10.1M | $4.5M | +80.48% |
| Q3 2014 | 2014-09-30 | $10.4M | $4.0M | +63.64% |
| Q2 2014 | 2014-06-30 | $8.6M | $468,000 | +5.74% |
| Q1 2014 | 2014-03-31 | $9.3M | $3.4M | +56.82% |
| Q4 2013 | 2013-12-31 | $5.6M | −$4.2M | −43.05% |
| Q3 2013 | 2013-09-30 | $6.3M | −$1.2M | −15.70% |
| Q2 2013 | 2013-06-30 | $8.1M | $128,000 | +1.60% |
| Q1 2013 | 2013-03-31 | $6.0M | −$2.8M | −31.97% |
| Q4 2012 | 2012-12-31 | $9.8M | — | — |
| Q3 2012 | 2012-09-30 | $7.5M | — | — |
| Q2 2012 | 2012-06-30 | $8.0M | — | — |
| Q1 2012 | 2012-03-31 | $8.8M | — | — |
Prothena Corp Public r&d spending trends
Over the last five fiscal years, Prothena Corp Public's r&d spending increased from $74.9M to $134.9M, a change of $60.0M. The latest reported quarter, Q2 2026, shows $8.8M.
About the metric
What research and development spending means
Research and development (R&D) spending covers the costs of creating and improving products, services, software, technologies, and processes. Higher R&D spending may support future innovation, but the amount alone does not show whether those investments will generate returns.
Calculation and source
SEC-reported R&D expense
TickerStat standardizes research and development expense reported in company SEC filings, including the software-specific US-GAAP R&D concept when it is the filer’s primary R&D expense line. It is historical company-reported spending, not an estimate or forecast. Fiscal periods can differ from calendar years, so exact period-end dates are included.
Review Prothena Corp Public source filings ↗