Prothena Corporation plc (PRTA) — Working Capital to Net Assets Ratio
Prothena Corporation plc (PRTA) has a Working Capital to Net Assets ratio of 97.8% as of September 2025. Working capital of $288.54 Million (current assets of $339.97 Million minus current liabilities of $51.44 Million) is measured against net assets of $294.99 Million. A higher ratio indicates strong short-term liquidity financed by the equity base. See how financially flexible is Prothena Corporation plc to measure the company's free cash flow as a share of total liabilities.
WC/NA Ratio
Working Capital
Current Assets
Current Liabilities
Prothena Corporation plc Working Capital to Net Assets (2011–2024)
This chart shows how Prothena Corporation plc's Working Capital to Net Assets ratio has evolved across 14 annual periods from 2011 to 2024. As of September 2025, the ratio stands at 97.8%, reflecting working capital of $288.54 Million against net assets of $294.99 Million USD. See PRTA days of operational coverage to measure how many days the company can operate on defensive assets alone.
Annual Working Capital to Net Assets for Prothena Corporation plc (2011–2024)
The table below presents the year-by-year Working Capital to Net Assets ratio for Prothena Corporation plc from 2011 to 2024, covering 14 annual filings. Each row shows current assets, current liabilities, working capital, net assets, the ratio, and the change in percentage points compared to the prior year. For live market cap and the full company profile, see PRTA stock market capitalisation.
| Year | WC/NA Ratio | Working Capital (USD) | Net Assets | Current Assets | Current Liabilities | Change (pp) |
|---|---|---|---|---|---|---|
| 2024 | 89.7% | $436.91 Million | $486.93 Million | $485.41 Million | $48.50 Million | ▼ -14.0 pp |
| 2023 | 103.7% | $582.39 Million | $561.37 Million | $639.28 Million | $56.89 Million | ▼ -3.8 pp |
| 2022 | 107.5% | $668.95 Million | $622.04 Million | $719.10 Million | $50.15 Million | ▼ -10.8 pp |
| 2021 | 118.3% | $551.36 Million | $466.04 Million | $584.81 Million | $33.45 Million | ▼ -30.3 pp |
| 2020 | 148.6% | $273.44 Million | $184.01 Million | $299.28 Million | $25.85 Million | ▲ +16.5 pp |
| 2019 | 132.1% | $360.66 Million | $272.92 Million | $378.38 Million | $17.71 Million | ▲ +3.2 pp |
| 2018 | 128.9% | $416.46 Million | $323.00 Million | $431.39 Million | $14.93 Million | ▲ +33.4 pp |
| 2017 | 95.5% | $388.96 Million | $407.19 Million | $426.33 Million | $37.37 Million | ▼ -0.3 pp |
| 2016 | 95.9% | $350.29 Million | $365.40 Million | $391.36 Million | $41.08 Million | ▼ -2.6 pp |
| 2015 | 98.5% | $355.19 Million | $360.67 Million | $377.40 Million | $22.22 Million | ▼ -0.6 pp |
| 2014 | 99.1% | $287.24 Million | $289.89 Million | $299.27 Million | $12.04 Million | ▲ +0.5 pp |
| 2013 | 98.6% | $170.82 Million | $173.27 Million | $178.22 Million | $7.41 Million | ▲ +0.5 pp |
| 2012 | 98.1% | $124.10 Million | $126.48 Million | $125.84 Million | $1.74 Million | ▼ -30.5 pp |
| 2011 | 128.7% | $-8.28 Million | $-6.44 Million | $124.00K | $8.40 Million | — |