PRTANasdaqPharmaceutical PreparationsFiscal year ends December 31
PROTHENA CORP PUBLIC LTD CO
Financials through Q2 FY2026, quarter ended Jun 30, 2026Last filing: 10-Q on Aug 6, 2026
$8.48+0.13 (+1.56%)
Close on Oct 19, 2026
- Market cap
- $442.19M
- P/E (TTM)
- –
- Dividend yield
- –
Prothena Corp Public statistics
Financials through Jun 30, 2026, price as of Oct 19, 2026, median of Pharmaceutical Preparations companies for comparison
Valuation
| Measure | Prothena Corp Public | Industry median |
|---|---|---|
| Market Cap | $435.34M | $197.05M |
| Enterprise Value | $147.15M | $106.56M |
| PS Ratio | 7.98 | 3.93 |
| PB Ratio | 1.52 | 2.14 |
| P/TBV Ratio | 1.52 | 2.46 |
Enterprise value
| Measure | Prothena Corp Public | Industry median |
|---|---|---|
| EV / Sales | 2.70 | 2.69 |
Income (trailing twelve months)
| Measure | Prothena Corp Public | Industry median |
|---|---|---|
| Revenue | $54.53M | $57.94M |
| Operating Income | -$55.51M | -$21.44M |
| Pretax Income | -$44.35M | -$14.45M |
| Net Income | -$43.99M | -$22.46M |
| EBITDA | -$54.68M | -$16.91M |
| EPS (Diluted) | -$0.84 | -$0.83 |
Margins
| Measure | Prothena Corp Public | Industry median |
|---|---|---|
| Operating Margin | -101.8% | -44.5% |
| Pretax Margin | -81.3% | -13.0% |
| Profit Margin | -80.7% | -39.2% |
| EBITDA Margin | -100.3% | -31.3% |
Returns
| Measure | Prothena Corp Public | Industry median |
|---|---|---|
| Return on Equity (ROE) | -14.4% | -53.1% |
| Return on Assets (ROA) | -12.5% | -41.0% |
| Return on Capital Employed (ROCE) | -19.1% | -37.8% |
Growth
| Measure | Prothena Corp Public | Industry median |
|---|---|---|
| Revenue Growth (YoY) | 427.3% | 6.01% |
| Revenue Growth (3Y CAGR) | -43.6% | 2.25% |
| Revenue Growth (5Y CAGR) | 62.6% | 6.42% |
Balance sheet
| Measure | Prothena Corp Public | Industry median |
|---|---|---|
| Cash & Short-Term Investments | $288.19M | $62.42M |
| Net Cash (Debt) | $288.19M | $15.68M |
| Net Cash Per Share | $5.61 | $0.65 |
| Equity (Book Value) | $286.89M | $48.79M |
| Book Value Per Share | $5.59 | $1.36 |
| Tangible Book Value | $286.89M | $23.06M |
| Working Capital | $280.36M | $75.77M |
Financial position
| Measure | Prothena Corp Public | Industry median |
|---|---|---|
| Current Ratio | 25.05 | 3.30 |
| Quick Ratio | 24.72 | 2.39 |
Cash flow (trailing twelve months)
| Measure | Prothena Corp Public | Industry median |
|---|---|---|
| Operating Cash Flow | -$60.05M | -$12.35M |
Efficiency
| Measure | Prothena Corp Public | Industry median |
|---|---|---|
| Asset Turnover | 0.16 | 0.38 |
| Revenue Per Employee | $813.88K | $398.96K |
| Profits Per Employee | -$656.60K | -$732.08K |
| Employee Count | 67 | 73 |
Dividends and yields
| Measure | Prothena Corp Public | Industry median |
|---|---|---|
| Earnings Yield | -10.1% | -21.2% |
Shares
| Measure | Prothena Corp Public | Industry median |
|---|---|---|
| Shares Outstanding | 51,337,000 | 59,128,900 |
| Shares Change (YoY) | -0.62% | 11.1% |
| Shares Change (QoQ) | -2.51% | 0.54% |
| Float | 34,894,400 | 48,744,500 |
| Shares Held by Insiders | 32.0% | 11.8% |
Taxes
| Measure | Prothena Corp Public | Industry median |
|---|---|---|
| Income Tax | -$358.00K | $91.50K |
Scores
| Measure | Prothena Corp Public | Industry median |
|---|---|---|
| Altman Z-Score | 11.17 | 0.10 |
| Piotroski F-Score | 2 | 4 |
Calculated by StockData from Prothena Corp Public's SEC filings and the latest closing price. Hover a measure to see its formula. The grey column is the median of companies in the same industry group (two-digit SIC code); green or red marks a better or worse value than that median.