Prothena Corp Public Ltd Co (PRTA) stock
PRTANasdaqPharmaceutical PreparationsFiscal year ends December 31
Financials through Q3 FY2026, quarter ended Sep 30, 2026Last filing: 10-Q on Nov 5, 2026Score 12/3017% below fair value
$8.16−0.07 (-0.85%)
Close on Nov 13, 2026Market cap $418.91MP/E –Yield –
Prothena Corp Public total assets
Total assets on the balance sheet at the end of each period.
Prothena Corp Public's total assets was $283.52M at Sep 30, 2026. For fiscal 2025 it was $326.80M, down 40.3% from the year before. Over ten years it grew -1.6% a year on average. The highest annual figure on record is $758.04M in fiscal 2022.
Annual total assets
| Period | Period end | Value | Change |
|---|---|---|---|
| FY2025 | Dec 31, 2025 | $326.80M | -40.3% |
| FY2024 | Dec 31, 2024 | $547.11M | -21.4% |
| FY2023 | Dec 31, 2023 | $696.38M | -8.1% |
| FY2022 | Dec 31, 2022 | $758.04M | +24.4% |
| FY2021 | Dec 31, 2021 | $609.37M | +83.0% |
| FY2020 | Dec 31, 2020 | $332.98M | -20.6% |
| FY2019 | Dec 31, 2019 | $419.27M | -15.9% |
| FY2018 | Dec 31, 2018 | $498.80M | +0.5% |
| FY2017 | Dec 31, 2017 | $496.33M | +7.9% |
| FY2016 | Dec 31, 2016 | $459.98M | +19.4% |
| FY2015 | Dec 31, 2015 | $385.24M | +26.7% |
| FY2014 | Dec 31, 2014 | $304.12M | +66.7% |
| FY2013 | Dec 31, 2013 | $182.41M | +41.1% |
| FY2012 | Dec 31, 2012 | $129.28M | – |
Quarterly total assets
Change is against the same quarter a year earlier.
| Period | Period end | Value | Change |
|---|---|---|---|
| Q3 FY2026 | Sep 30, 2026 | $283.52M | -19.6% |
| Q2 FY2026 | Jun 30, 2026 | $302.58M | -24.2% |
| Q1 FY2026 | Mar 31, 2026 | $349.89M | -29.4% |
| Q4 FY2025 | Dec 31, 2025 | $326.80M | -40.3% |
| Q3 FY2025 | Sep 30, 2025 | $352.63M | -40.8% |
| Q2 FY2025 | Jun 30, 2025 | $399.07M | -38.2% |
| Q1 FY2025 | Mar 31, 2025 | $495.34M | -20.5% |
| Q4 FY2024 | Dec 31, 2024 | $547.11M | -21.4% |
| Q3 FY2024 | Sep 30, 2024 | $595.25M | -20.3% |
| Q2 FY2024 | Jun 30, 2024 | $645.57M | -10.4% |
| Q1 FY2024 | Mar 31, 2024 | $623.19M | -16.0% |
| Q4 FY2023 | Dec 31, 2023 | $696.38M | -8.1% |
| Q3 FY2023 | Sep 30, 2023 | $746.92M | +34.7% |
| Q2 FY2023 | Jun 30, 2023 | $720.65M | +31.1% |
| Q1 FY2023 | Mar 31, 2023 | $741.59M | +27.5% |
| Q4 FY2022 | Dec 31, 2022 | $758.04M | +24.4% |
| Q3 FY2022 | Sep 30, 2022 | $554.44M | -12.4% |
| Q2 FY2022 | Jun 30, 2022 | $549.59M | +25.9% |
| Q1 FY2022 | Mar 31, 2022 | $581.41M | +53.1% |
| Q4 FY2021 | Dec 31, 2021 | $609.37M | +83.0% |
| Q3 FY2021 | Sep 30, 2021 | $632.70M | +77.8% |
| Q2 FY2021 | Jun 30, 2021 | $436.38M | +15.2% |
| Q1 FY2021 | Mar 31, 2021 | $379.72M | -4.9% |
| Q4 FY2020 | Dec 31, 2020 | $332.98M | -20.6% |
| Q3 FY2020 | Sep 30, 2020 | $355.78M | -21.1% |
| Q2 FY2020 | Jun 30, 2020 | $378.93M | -18.0% |
| Q1 FY2020 | Mar 31, 2020 | $399.42M | -13.1% |
| Q4 FY2019 | Dec 31, 2019 | $419.27M | -15.9% |
| Q3 FY2019 | Sep 30, 2019 | $450.89M | -14.1% |
| Q2 FY2019 | Jun 30, 2019 | $462.07M | -18.0% |
| Q1 FY2019 | Mar 31, 2019 | $459.53M | -24.3% |
| Q4 FY2018 | Dec 31, 2018 | $498.80M | +0.5% |
| Q3 FY2018 | Sep 30, 2018 | $524.63M | -2.4% |
| Q2 FY2018 | Jun 30, 2018 | $563.30M | -2.7% |
| Q1 FY2018 | Mar 31, 2018 | $606.65M | +4.2% |
| Q4 FY2017 | Dec 31, 2017 | $496.33M | +7.9% |
| Q3 FY2017 | Sep 30, 2017 | $537.68M | – |
| Q2 FY2017 | Jun 30, 2017 | $579.00M | – |
| Q1 FY2017 | Mar 31, 2017 | $581.95M | – |
| Q4 FY2016 | Dec 31, 2016 | $459.98M | – |
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