Prothena Corporation Statistics
Total Valuation
PRTA has a market cap or net worth of $534.53 million. The enterprise value is $212.77 million.
Important Dates
The last earnings date was Thursday, November 6, 2025, after market close.
| Earnings Date | Nov 6, 2025 |
| Ex-Dividend Date | n/a |
Share Statistics
PRTA has 53.83 million shares outstanding. The number of shares has increased by 0.17% in one year.
| Current Share Class | 53.83M |
| Shares Outstanding | 53.83M |
| Shares Change (YoY) | +0.17% |
| Shares Change (QoQ) | +0.01% |
| Owned by Insiders (%) | 19.39% |
| Owned by Institutions (%) | 76.47% |
| Float | 40.02M |
Valuation Ratios
| PE Ratio | n/a |
| Forward PE | n/a |
| PS Ratio | 45.35 |
| Forward PS | n/a |
| PB Ratio | 1.81 |
| P/TBV Ratio | 1.81 |
| P/FCF Ratio | n/a |
| P/OCF Ratio | n/a |
| PEG Ratio | n/a |
Financial Ratio HistoryEnterprise Valuation
| EV / Earnings | n/a |
| EV / Sales | 18.05 |
| EV / EBITDA | n/a |
| EV / EBIT | n/a |
| EV / FCF | n/a |
Financial Position
The company has a current ratio of 6.61, with a Debt / Equity ratio of 0.03.
| Current Ratio | 6.61 |
| Quick Ratio | 6.43 |
| Debt / Equity | 0.03 |
| Debt / EBITDA | n/a |
| Debt / FCF | n/a |
| Interest Coverage | n/a |
Financial Efficiency
Return on equity (ROE) is -67.63% and return on invested capital (ROIC) is -32.69%.
| Return on Equity (ROE) | -67.63% |
| Return on Assets (ROA) | -29.31% |
| Return on Invested Capital (ROIC) | -32.69% |
| Return on Capital Employed (ROCE) | -73.79% |
| Revenue Per Employee | $72,307 |
| Profits Per Employee | -$1.72M |
| Employee Count | 163 |
| Asset Turnover | 0.02 |
| Inventory Turnover | n/a |
Taxes
In the past 12 months, PRTA has paid $41.71 million in taxes.
| Income Tax | 41.71M |
| Effective Tax Rate | n/a |
Stock Price Statistics
The stock price has decreased by -42.37% in the last 52 weeks. The beta is -0.11, so PRTA's price volatility has been lower than the market average.
| Beta (5Y) | -0.11 |
| 52-Week Price Change | -42.37% |
| 50-Day Moving Average | 9.70 |
| 200-Day Moving Average | 9.37 |
| Relative Strength Index (RSI) | 46.36 |
| Average Volume (20 Days) | 561,216 |
Short Selling Information
The latest short interest is 4.14 million, so 7.70% of the outstanding shares have been sold short.
| Short Interest | 4.14M |
| Short Previous Month | 3.86M |
| Short % of Shares Out | 7.70% |
| Short % of Float | 10.36% |
| Short Ratio (days to cover) | 6.52 |
Income Statement
In the last 12 months, PRTA had revenue of $11.79 million and -$280.46 million in losses. Loss per share was -$5.21.
| Revenue | 11.79M |
| Gross Profit | -158.65M |
| Operating Income | -222.25M |
| Pretax Income | -238.75M |
| Net Income | -280.46M |
| EBITDA | -221.35M |
| EBIT | -222.25M |
| Loss Per Share | -$5.21 |
Full Income StatementBalance Sheet
The company has $330.84 million in cash and $9.08 million in debt, giving a net cash position of $321.76 million or $5.98 per share.
| Cash & Cash Equivalents | 330.84M |
| Total Debt | 9.08M |
| Net Cash | 321.76M |
| Net Cash Per Share | $5.98 |
| Equity (Book Value) | 294.99M |
| Book Value Per Share | 5.48 |
| Working Capital | 288.54M |
Full Balance SheetCash Flow
In the last 12 months, operating cash flow was -$188.04 million and capital expenditures -$181,000, giving a free cash flow of -$188.22 million.
| Operating Cash Flow | -188.04M |
| Capital Expenditures | -181,000 |
| Free Cash Flow | -188.22M |
| FCF Per Share | -$3.50 |
Full Cash Flow StatementMargins
| Gross Margin | n/a |
| Operating Margin | -1,885.68% |
| Pretax Margin | -2,025.72% |
| Profit Margin | n/a |
| EBITDA Margin | n/a |
| EBIT Margin | n/a |
| FCF Margin | n/a |
Dividends & Yields
PRTA does not appear to pay any dividends at this time.
| Dividend Per Share | n/a |
| Dividend Yield | n/a |
| Dividend Growth (YoY) | n/a |
| Years of Dividend Growth | n/a |
| Payout Ratio | n/a |
| Buyback Yield | -0.17% |
| Shareholder Yield | -0.17% |
| Earnings Yield | -52.47% |
| FCF Yield | -35.21% |
Dividend DetailsAnalyst Forecast
The average price target for PRTA is $17.71, which is 78.35% higher than the current price. The consensus rating is "Buy".
| Price Target | $17.71 |
| Price Target Difference | 78.35% |
| Analyst Consensus | Buy |
| Analyst Count | 9 |
| Revenue Growth Forecast (5Y) | -9.96% |
| EPS Growth Forecast (5Y) | -4.02% |
Stock ForecastsFair Value
There are several formulas that can be used to estimate the intrinsic value of a stock.
| Lynch Fair Value | n/a |
| Lynch Upside | n/a |
| Graham Number | n/a |
| Graham Upside | n/a |
Stock Splits
This stock does not have any record of stock splits.
| Last Split Date | n/a |
| Split Type | n/a |
| Split Ratio | n/a |
Scores
PRTA has an Altman Z-Score of -0.02 and a Piotroski F-Score of 1. A Z-score under 3 suggests an increased risk of bankruptcy.
| Altman Z-Score | -0.02 |
| Piotroski F-Score | 1 |
