Prothena Corp Public annual operating expenses
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Prothena Corp Public Operating Expenses Growth & History (PRTA)
Prothena Corp Public's operating expenses was $224.3M for fiscal 2025.
View full Prothena Corp Public company overviewProthena Corp Public annual operating expenses history
| Fiscal year | Period ended | Operating expenses | Change | Growth |
|---|---|---|---|---|
| 2025 | 2025-12-31 | $224.3M | −$65.4M | −22.57% |
| 2024 | 2024-12-31 | $289.7M | $7.3M | +2.59% |
| 2023 | 2023-12-31 | $282.4M | $96.9M | +52.27% |
| 2022 | 2022-12-31 | $185.5M | $56.9M | +44.21% |
| 2021 | 2021-12-31 | $128.6M | $15.0M | +13.22% |
| 2020 | 2020-12-31 | $113.6M | $27.1M | +31.30% |
| 2019 | 2019-12-31 | $86.5M | −$73.3M | −45.87% |
| 2018 | 2018-12-31 | $159.8M | −$23.0M | −12.56% |
| 2017 | 2017-12-31 | $182.8M | $22.2M | +13.81% |
| 2016 | 2016-12-31 | $160.6M | $79.0M | +96.94% |
| 2015 | 2015-12-31 | $81.5M | $24.0M | +41.81% |
| 2014 | 2014-12-31 | $57.5M | $16.4M | +39.90% |
| 2013 | 2013-12-31 | $41.1M | −$3.0M | −6.73% |
| 2012 | 2012-12-31 | $44.1M | $14.3M | +48.12% |
| 2011 | 2011-12-31 | $29.8M | — | — |
Prothena Corp Public quarterly operating expenses
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| Fiscal quarter | Period ended | Operating expenses | Change | YoY change |
|---|---|---|---|---|
| Q2 2026 | 2026-06-30 | $22.1M | −$66.9M | −75.17% |
| Q1 2026 | 2026-03-31 | $21.0M | −$47.4M | −69.23% |
| Q4 2025 | 2025-12-31 | $24.2M | −$42.8M | −63.86% |
| Q3 2025 | 2025-09-30 | $42.7M | −$24.8M | −36.79% |
| Q2 2025 | 2025-06-30 | $89.0M | $15.4M | +20.91% |
| Q1 2025 | 2025-03-31 | $68.4M | −$13.2M | −16.14% |
| Q4 2024 | 2024-12-31 | $67.0M | −$11.8M | −14.98% |
| Q3 2024 | 2024-09-30 | $67.5M | −$7.1M | −9.49% |
| Q2 2024 | 2024-06-30 | $73.6M | $3.1M | +4.42% |
| Q1 2024 | 2024-03-31 | $81.6M | $23.1M | +39.46% |
| Q4 2023 | 2023-12-31 | $78.8M | $28.8M | +57.68% |
| Q3 2023 | 2023-09-30 | $74.6M | $22.7M | +43.80% |
| Q2 2023 | 2023-06-30 | $70.5M | $26.0M | +58.40% |
| Q1 2023 | 2023-03-31 | $58.5M | $19.4M | +49.61% |
| Q4 2022 | 2022-12-31 | $50.0M | $15.7M | +45.91% |
| Q3 2022 | 2022-09-30 | $51.8M | $21.9M | +73.14% |
| Q2 2022 | 2022-06-30 | $44.5M | $12.4M | +38.60% |
| Q1 2022 | 2022-03-31 | $39.1M | $6.8M | +21.16% |
| Q4 2021 | 2021-12-31 | $34.3M | $3.6M | +11.73% |
| Q3 2021 | 2021-09-30 | $29.9M | −$1.1M | −3.41% |
| Q2 2021 | 2021-06-30 | $32.1M | $5.2M | +19.29% |
| Q1 2021 | 2021-03-31 | $32.3M | $7.3M | +29.13% |
| Q4 2020 | 2020-12-31 | $30.7M | $7.1M | +30.34% |
| Q3 2020 | 2020-09-30 | $31.0M | $9.8M | +46.40% |
| Q2 2020 | 2020-06-30 | $26.9M | $8.3M | +44.27% |
| Q1 2020 | 2020-03-31 | $25.0M | $1.8M | +7.99% |
| Q4 2019 | 2019-12-31 | $23.5M | $581,000 | +2.53% |
| Q3 2019 | 2019-09-30 | $21.2M | −$3.4M | −13.84% |
| Q2 2019 | 2019-06-30 | $18.7M | −$44.7M | −70.54% |
| Q1 2019 | 2019-03-31 | $23.1M | −$25.8M | −52.71% |
| Q4 2018 | 2018-12-31 | $22.9M | −$24.6M | −51.73% |
| Q3 2018 | 2018-09-30 | $24.6M | −$29.2M | −54.28% |
| Q2 2018 | 2018-06-30 | $63.3M | $18.4M | +40.95% |
| Q1 2018 | 2018-03-31 | $48.9M | $12.4M | +33.96% |
| Q4 2017 | 2017-12-31 | $47.5M | −$1.9M | −3.85% |
| Q3 2017 | 2017-09-30 | $53.8M | $10.8M | +25.08% |
| Q2 2017 | 2017-06-30 | $44.9M | $4.5M | +10.99% |
| Q1 2017 | 2017-03-31 | $36.5M | $8.9M | +32.00% |
| Q4 2016 | 2016-12-31 | $49.4M | $24.9M | +101.67% |
| Q3 2016 | 2016-09-30 | $43.0M | $19.9M | +86.12% |
| Q2 2016 | 2016-06-30 | $40.5M | $22.2M | +121.12% |
| Q1 2016 | 2016-03-31 | $27.7M | $12.1M | +77.15% |
| Q4 2015 | 2015-12-31 | $24.5M | $9.4M | +62.18% |
| Q3 2015 | 2015-09-30 | $23.1M | $8.5M | +57.96% |
| Q2 2015 | 2015-06-30 | $18.3M | $4.8M | +35.13% |
| Q1 2015 | 2015-03-31 | $15.6M | $1.4M | +9.90% |
| Q4 2014 | 2014-12-31 | $15.1M | $4.2M | +39.09% |
| Q3 2014 | 2014-09-30 | $14.6M | $4.9M | +50.13% |
| Q2 2014 | 2014-06-30 | $13.6M | $2.2M | +19.31% |
| Q1 2014 | 2014-03-31 | $14.2M | $5.1M | +55.56% |
| Q4 2013 | 2013-12-31 | $10.9M | −$1.9M | −15.05% |
| Q3 2013 | 2013-09-30 | $9.7M | $125,000 | +1.30% |
| Q2 2013 | 2013-06-30 | $11.4M | $913,000 | +8.74% |
| Q1 2013 | 2013-03-31 | $9.1M | −$2.1M | −18.52% |
| Q4 2012 | 2012-12-31 | $12.8M | — | — |
| Q3 2012 | 2012-09-30 | $9.6M | — | — |
| Q2 2012 | 2012-06-30 | $10.4M | — | — |
| Q1 2012 | 2012-03-31 | $11.2M | — | — |
Prothena Corp Public operating expenses trends
Over the last five fiscal years, Prothena Corp Public's operating expenses increased from $113.6M to $224.3M, a change of $110.7M. The latest reported quarter, Q2 2026, shows $22.1M.
About the metric
What operating expenses mean
Operating expenses are the recurring costs of running a company’s business beyond the direct costs used to calculate gross profit. They commonly include selling, general and administrative expenses, research and development, and other operating costs.
Calculation and source
SEC-reported and calculated operating expenses
TickerStat uses operating expenses reported in company SEC filings when available. When a separate total is unavailable, it calculates operating expenses as aligned gross profit minus operating income for the same fiscal period. Fiscal periods can differ from calendar years, so exact period-end dates are included.
Review Prothena Corp Public source filings ↗