Total Debt
$7.7M
Net Debt
-$321.8M
Prothena Corporation plc currently has $7.7M in total debt. Net debt is -$321.8M after cash offsets. This 'Net Cash' position indicates exceptional financial strength.
Financial Fundamentals
PRTA • Quarterly Data • 5Y View
| Date | Total Debt ($B) | Cash & Inv. ($B) | Net Debt ($B) | Total Assets | Debt/Assets |
|---|---|---|---|---|---|
| 2026-03-31 | 0.01 | 0.33 | -0.32Net Cash | 0.35 | 2.2% |
| 2025-12-31 | 0.01 | 0.31 | -0.29Net Cash | 0.33 | 4.2% |
| 2025-09-30 | 0.01 | 0.33 | -0.32Net Cash | 0.35 | 2.6% |
| 2025-06-30 | 0.01 | 0.37 | -0.36Net Cash | 0.40 | 2.5% |
| 2025-03-31 | 0.01 | 0.42 | -0.41Net Cash | 0.50 | 2.1% |
| 2024-12-31 | 0.01 | 0.47 | -0.46Net Cash | 0.55 | 2.0% |
| 2024-09-30 | 0.01 | 0.52 | -0.51Net Cash | 0.60 | 1.9% |
| 2024-06-30 | 0.01 | 0.56 | -0.55Net Cash | 0.65 | 1.9% |
| 2024-03-31 | 0.01 | 0.55 | -0.53Net Cash | 0.62 | 2.0% |
| 2023-12-31 | 0.01 | 0.62 | -0.61Net Cash | 0.70 | 1.7% |
| 2023-09-30 | 0.01 | 0.67 | -0.66Net Cash | 0.75 | 1.4% |
| 2023-06-30 | 0.00 | 0.66 | -0.66Net Cash | 0.72 | 0.5% |
| 2023-03-31 | 0.00 | 0.69 | -0.68Net Cash | 0.74 | 0.7% |
| 2022-12-31 | 0.01 | 0.71 | -0.70Net Cash | 0.76 | 0.9% |
| 2022-09-30 | 0.01 | 0.50 | -0.49Net Cash | 0.55 | 1.4% |
| 2022-06-30 | 0.01 | 0.51 | -0.50Net Cash | 0.55 | 1.7% |
| 2022-03-31 | 0.01 | 0.54 | -0.53Net Cash | 0.58 | 1.9% |
| 2021-12-31 | 0.01 | 0.58 | -0.57Net Cash | 0.61 | 2.0% |
| 2021-09-30 | 0.01 | 0.60 | -0.59Net Cash | 0.63 | 2.2% |
| 2021-06-30 | 0.02 | 0.40 | -0.38Net Cash | 0.44 | 3.5% |
| 2021-03-31 | 0.02 | 0.34 | -0.33Net Cash | 0.38 | 4.3% |
| 2020-12-31 | 0.02 | 0.30 | -0.28Net Cash | 0.33 | 5.4% |
| 2020-09-30 | 0.02 | 0.31 | -0.30Net Cash | 0.36 | 5.4% |
| 2020-06-30 | 0.02 | 0.33 | -0.31Net Cash | 0.38 | 5.4% |
| 2020-03-31 | 0.02 | 0.35 | -0.33Net Cash | 0.40 | 5.4% |
| 2019-12-31 | 0.02 | 0.38 | -0.35Net Cash | 0.42 | 5.5% |
| 2019-09-30 | 0.02 | 0.39 | -0.37Net Cash | 0.45 | 5.4% |
| 2019-06-30 | 0.03 | 0.40 | -0.37Net Cash | 0.46 | 5.5% |
| 2019-03-31 | 0.03 | 0.41 | -0.38Net Cash | 0.46 | 5.8% |
| 2018-12-31 | 0.05 | 0.43 | -0.38Net Cash | 0.50 | 10.3% |
| 2018-09-30 | 0.05 | 0.45 | -0.40Net Cash | 0.52 | 9.9% |
| 2018-06-30 | 0.05 | 0.49 | -0.43Net Cash | 0.56 | 9.3% |
| 2018-03-31 | 0.05 | 0.43 | -0.38Net Cash | 0.61 | 8.6% |
| 2017-12-31 | 0.05 | 0.42 | -0.37Net Cash | 0.50 | 10.5% |
| 2017-09-30 | 0.05 | 0.46 | -0.40Net Cash | 0.54 | 9.7% |
| 2017-06-30 | 0.05 | 0.47 | -0.42Net Cash | 0.58 | 9.0% |
| 2017-03-31 | 0.05 | 0.51 | -0.45Net Cash | 0.58 | 8.9% |
| 2016-12-31 | 0.05 | 0.39 | -0.34Net Cash | 0.46 | 11.2% |
| 2016-09-30 | 0.04 | 0.41 | -0.37Net Cash | 0.48 | 8.2% |
| 2016-06-30 | 0.04 | 0.44 | -0.41Net Cash | 0.50 | 7.1% |
| 2016-03-31 | 0.00 | 0.47 | -0.47Net Cash | 0.49 | 0.0% |
| 2015-12-31 | 0.00 | 0.37 | -0.37Net Cash | 0.39 | 0.0% |
| 2015-09-30 | 0.00 | 0.39 | -0.39Net Cash | 0.40 | 0.0% |
| 2015-06-30 | 0.00 | 0.40 | -0.40Net Cash | 0.41 | 0.0% |
| 2015-03-31 | 0.00 | 0.28 | -0.28Net Cash | 0.29 | 0.0% |
| 2014-12-31 | 0.00 | 0.29 | -0.29Net Cash | 0.30 | 0.0% |
| 2014-09-30 | 0.00 | 0.31 | -0.31Net Cash | 0.31 | 0.0% |
| 2014-06-30 | 0.00 | 0.30 | -0.30Net Cash | 0.31 | 0.0% |
| 2014-03-31 | 0.00 | 0.20 | -0.20Net Cash | 0.20 | 0.0% |
| 2013-12-31 | 0.00 | 0.18 | -0.18Net Cash | 0.18 | 0.0% |
| 2013-09-30 | 0.00 | 0.10 | -0.10Net Cash | 0.11 | 0.0% |
| 2013-06-30 | 0.00 | 0.11 | -0.11Net Cash | 0.12 | 0.0% |
| 2013-03-31 | 0.00 | 0.12 | -0.12Net Cash | 0.12 | 0.0% |
| 2012-12-31 | 0.00 | 0.12 | -0.12Net Cash | 0.13 | 0.0% |
| 2012-09-30 | 0.00 | 0.00 | 0.00 | 0.00 | 0.0% |