NASDAQ : PRTA
Prothena Corporation plc — Financial statements
Healthcare · Biotechnology · Ireland
Last price 8.47 USD (Oct 30, 2026, 4:00 PM EDT) · Market cap 434.82M
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Financial statements
Prothena Corporation plc (PRTA) reported revenue of 54.53M USD (TTM). Five years of income statement, balance sheet, cash flow and ratios below.
Income statement
Fiscal year January - December; amounts in USD.
| TTM | FY2025 | FY2024 | FY2023 | FY2022 | FY2021 | |
|---|---|---|---|---|---|---|
| Revenue | 54.53M | 9.68M | 135.16M | 91.37M | 53.91M | 200.58M |
| Cost of Revenue | 64.95M | 134.85M | 222.52M | 220.57M | 135.56M | 82.28M |
| Gross Profit | -10.42M | -125.17M | -87.36M | -129.20M | -81.66M | 118.29M |
| Selling, General & Admin | 49.45M | 59.39M | 67.20M | 61.84M | 49.90M | 46.32M |
| Operating Expenses | 49.45M | 59.39M | 67.20M | 61.84M | 49.90M | 46.32M |
| Operating Income | -59.87M | -184.56M | -154.56M | -191.04M | -131.56M | 71.97M |
| Interest & Investment Income | 10.97M | 14.14M | 25.82M | 31.01M | 6.35M | 42.00K |
| Currency Exchange Gain (Loss) | 193.00K | -328.00K | -185.00K | -458.00K | -397.00K | -96.00K |
| EBT Excluding Unusual Items | -48.71M | -170.75M | -128.93M | -160.48M | -125.61M | 71.92M |
| Merger & Restructuring Charges | 4.36M | -30.08M | ||||
| Pretax Income | -44.35M | -200.83M | -128.93M | -160.48M | -125.61M | 71.92M |
| Income Tax Expense | -358.00K | 43.26M | -6.62M | -13.45M | -8.66M | 4.95M |
| Net Income | -43.99M | -244.09M | -122.31M | -147.03M | -116.95M | 66.97M |
| Net Income to Common | -43.99M | -244.09M | -122.31M | -147.03M | -116.95M | 66.97M |
| Shares Outstanding (Basic) | 53.38M | 53.83M | 53.77M | 53.22M | 47.37M | 44.23M |
| Shares Outstanding (Diluted) | 53.38M | 53.83M | 53.77M | 53.22M | 47.37M | 48.46M |
| EPS (Basic) | -0.82 | -4.53 | -2.27 | -2.76 | -2.47 | 1.51 |
| EPS (Diluted) | -0.83 | -4.53 | -2.27 | -2.76 | -2.47 | 1.38 |
| Free Cash Flow | -60.71M | -163.72M | -150.35M | -136.72M | -109.28M | 92.03M |
| Free Cash Flow Per Share | -1.14 | -3.04 | -2.80 | -2.57 | -2.31 | 1.90 |
| Gross Margin | -19.11% | -64.64% | -141.40% | -151.48% | 58.98% | |
| Operating Margin | -109.79% | -1,905.82% | -114.36% | -209.08% | -244.05% | 35.88% |
| Profit Margin | -80.67% | -2,520.57% | -90.50% | -160.92% | -216.95% | 33.39% |
| Free Cash Flow Margin | -111.34% | -1,690.60% | -111.24% | -149.63% | -202.74% | 45.88% |
| EBITDA | -59.04M | -183.66M | -153.67M | -190.11M | -130.81M | 73.09M |
| EBITDA Margin | -108.27% | -113.70% | -208.06% | -242.67% | 36.44% | |
| D&A For EBITDA | 828.00K | 895.00K | 893.00K | 928.00K | 744.00K | 1.11M |
| EBIT | -59.87M | -184.56M | -154.56M | -191.04M | -131.56M | 71.97M |
| EBIT Margin | -109.79% | -114.36% | -209.08% | -244.05% | 35.88% | |
| Effective Tax Rate | 6.88% | |||||
| Revenue as Reported | 54.53M | 9.68M | 135.16M | 91.37M | 53.91M | 200.58M |
Balance sheet
Fiscal year January - December; amounts in USD.
| TTM | FY2025 | FY2024 | FY2023 | FY2022 | FY2021 | |
|---|---|---|---|---|---|---|
| Cash & Equivalents | 288.19M | 307.53M | 471.39M | 618.83M | 710.41M | 579.09M |
| Cash & Short-Term Investments | 288.19M | 307.53M | 471.39M | 618.83M | 710.41M | 579.09M |
| Accounts Receivable | 5.16M | |||||
| Other Receivables | 62.00K | 13.00K | ||||
| Receivables | 5.16M | 62.00K | 13.00K | |||
| Prepaid Expenses | 2.67M | 5.91M | 12.86M | 803.00K | 6.92M | 4.94M |
| Restricted Cash | 1.35M | |||||
| Other Current Assets | 1.15M | 1.75M | 1.17M | 13.14M | 1.71M | 766.00K |
| Total Current Assets | 292.01M | 315.19M | 485.41M | 639.28M | 719.10M | 584.81M |
| Property, Plant & Equipment | 9.22M | 10.27M | 13.79M | 16.00M | 8.01M | 14.13M |
| Long-Term Deferred Tax Assets | 43.24M | 33.89M | 18.20M | 7.07M | ||
| Other Long-Term Assets | 1.34M | 1.34M | 4.67M | 7.21M | 12.72M | 3.35M |
| Total Assets | 302.58M | 326.80M | 547.11M | 696.38M | 758.03M | 609.37M |
| Accounts Payable | 1.94M | 5.88M | 7.77M | 25.39M | 9.27M | 3.69M |
| Accrued Expenses | 5.54M | 15.90M | 28.34M | 28.26M | 22.46M | 15.76M |
| Current Portion of Leases | 2.96M | 2.89M | 2.61M | 1.11M | 6.47M | 5.94M |
| Current Unearned Revenue | 620.00K | 2.66M | 8.85M | 11.44M | 7.66M | |
| Other Current Liabilities | 597.00K | 13.52M | 930.00K | 2.13M | 503.00K | 405.00K |
| Total Current Liabilities | 11.66M | 40.84M | 48.50M | 56.89M | 50.15M | 33.45M |
| Long-Term Leases | 4.03M | 5.49M | 8.23M | 10.72M | 6.39M | |
| Long-Term Unearned Revenue | 3.45M | 67.41M | 85.29M | 102.93M | ||
| Other Long-Term Liabilities | 553.00K | 553.00K | ||||
| Total Liabilities | 15.69M | 46.33M | 60.18M | 135.02M | 135.99M | 143.32M |
| Common Stock | 517.00K | 538.00K | 538.00K | 537.00K | 521.00K | 466.00K |
| Additional Paid-In Capital | 1.62B | 1.63B | 1.59B | 1.54B | 1.45B | 1.18B |
| Retained Earnings | -1.33B | -1.35B | -1.10B | -980.03M | -833.00M | -716.05M |
| Shareholders' Equity | 286.89M | 280.47M | 486.93M | 561.37M | 622.04M | 466.04M |
| Total Liabilities & Equity | 302.58M | 326.80M | 547.11M | 696.38M | 758.03M | 609.37M |
| Total Debt | 6.99M | 8.37M | 10.84M | 11.84M | 6.47M | 12.33M |
| Net Cash (Debt) | 281.20M | 299.16M | 460.55M | 607.00M | 703.93M | 566.77M |
| Net Cash Per Share | 5.27 | 5.56 | 8.56 | 11.41 | 14.86 | 11.69 |
| Filing Date Shares Outstanding | 51.34M | 53.83M | 53.83M | 53.72M | 52.56M | 46.69M |
| Total Common Shares Outstanding | 51.74M | 53.83M | 53.83M | 53.68M | 52.10M | 46.66M |
| Working Capital | 280.36M | 274.35M | 436.91M | 582.39M | 668.95M | 551.36M |
| Book Value Per Share | 5.54 | 5.21 | 9.05 | 10.46 | 11.94 | 9.99 |
| Tangible Book Value | 286.89M | 280.47M | 486.93M | 561.37M | 622.04M | 466.04M |
| Tangible Book Value Per Share | 5.54 | 5.21 | 9.05 | 10.46 | 11.94 | 9.99 |
| Machinery | 7.03M | 7.07M | 9.14M | 9.02M | 9.90M | 9.76M |
| Leasehold Improvements | 1.50M | 1.39M |
Cash flow statement
Fiscal year January - December; amounts in USD.
| TTM | FY2025 | FY2024 | FY2023 | FY2022 | FY2021 | |
|---|---|---|---|---|---|---|
| Net Income | -43.99M | -244.09M | -122.31M | -147.03M | -116.95M | 66.97M |
| Depreciation & Amortization | 828.00K | 895.00K | 893.00K | 928.00K | 744.00K | 1.11M |
| Loss (Gain) From Sale of Assets | 107.00K | 104.00K | 15.00K | 1.00K | ||
| Stock-Based Compensation | 29.07M | 37.64M | 45.96M | 40.91M | 31.32M | 24.66M |
| Other Operating Activities | 2.89M | 46.05M | -6.65M | -8.21M | -5.14M | 10.26M |
| Change in Accounts Receivable | 5.16M | -5.16M | 15.00K | |||
| Change in Accounts Payable | -21.93M | -15.78M | -18.30M | 22.86M | 11.87M | -492.00K |
| Change in Unearned Revenue | -4.48M | -9.63M | -55.11M | -29.33M | -13.86M | 348.00K |
| Change in Other Net Operating Assets | -15.60M | 21.24M | 303.00K | -8.90M | -16.81M | -10.28M |
| Operating Cash Flow | -60.05M | -163.58M | -150.05M | -133.91M | -108.82M | 92.61M |
| Capital Expenditures | -662.00K | -138.00K | -298.00K | -2.81M | -464.00K | -575.00K |
| Sale of Property, Plant & Equipment | 37.00K | |||||
| Investing Cash Flow | -662.00K | -138.00K | -298.00K | -2.77M | -464.00K | -575.00K |
| Issuance of Common Stock | 1.91M | 45.10M | 241.46M | 190.33M | ||
| Other Financing Activities | -17.00K | -139.00K | -353.00K | |||
| Financing Cash Flow | -22.53M | -139.00K | 1.55M | 45.10M | 241.46M | 190.33M |
| Net Cash Flow | -83.24M | -163.86M | -148.79M | -91.58M | 132.17M | 282.36M |
| Free Cash Flow | -60.71M | -163.72M | -150.35M | -136.72M | -109.28M | 92.03M |
| Free Cash Flow Margin | -111.34% | -1,690.60% | -111.24% | -149.63% | -202.74% | 45.88% |
| Free Cash Flow Per Share | -1.14 | -3.04 | -2.80 | -2.57 | -2.31 | 1.90 |
| Levered Free Cash Flow | -54.22M | -78.53M | -53.50M | -80.02M | -37.44M | 75.55M |
| Unlevered Free Cash Flow | -54.22M | -78.53M | -53.50M | -80.02M | -37.44M | 75.55M |
| Cash Income Tax Paid | 931.00K | 3.17M | 1.55M | 2.66M | 580.00K | |
| Change in Working Capital | -42.01M | -4.17M | -67.94M | -20.53M | -18.80M | -10.40M |
Ratios
Fiscal year January - December; amounts in USD.
| TTM | FY2025 | FY2024 | FY2023 | FY2022 | FY2021 | |
|---|---|---|---|---|---|---|
| Market Capitalization | 434.82M | 514.08M | 745.25M | 1.95B | 3.11B | 2.30B |
| Enterprise Value | 153.62M | 192.32M | 237.48M | 1.29B | 2.62B | 1.72B |
| Last Close Price | 8.47 | 9.55 | 13.85 | 36.34 | 60.25 | 49.40 |
| PE Ratio | 34.37 | |||||
| Forward PE | 88.34 | 49.76 | 49.76 | 49.76 | 49.76 | |
| PS Ratio | 7.97 | 53.09 | 5.51 | 21.34 | 57.70 | 11.48 |
| PB Ratio | 1.53 | 1.83 | 1.53 | 3.47 | 5.00 | 4.94 |
| P/TBV Ratio | 1.52 | 1.83 | 1.53 | 3.47 | 5.00 | 4.94 |
| P/FCF Ratio | 25.01 | |||||
| P/OCF Ratio | 24.86 | |||||
| EV/Sales Ratio | 2.82 | 19.86 | 1.76 | 14.12 | 48.66 | 8.55 |
| EV/EBITDA Ratio | 23.47 | |||||
| EV/EBIT Ratio | 23.83 | |||||
| EV/FCF Ratio | 18.64 | |||||
| Debt / Equity Ratio | 0.02 | 0.03 | 0.02 | 0.02 | 0.01 | 0.03 |
| Debt / EBITDA Ratio | 0.16 | |||||
| Debt / FCF Ratio | 0.13 | |||||
| Net Debt / Equity Ratio | -0.98 | -1.07 | -0.95 | -1.08 | -1.13 | -1.22 |
| Net Debt / EBITDA Ratio | 4.76 | 1.63 | 3.00 | 3.19 | 5.38 | -7.75 |
| Net Debt / FCF Ratio | 4.63 | 1.83 | 3.06 | 4.44 | 6.44 | -6.16 |
| Asset Turnover | 0.15 | 0.02 | 0.22 | 0.13 | 0.08 | 0.43 |
| Quick Ratio | 24.72 | 7.53 | 9.72 | 10.97 | 14.17 | 17.31 |
| Current Ratio | 25.05 | 7.72 | 10.01 | 11.24 | 14.34 | 17.48 |
| Return on Equity (ROE) | -14.39% | -63.62% | -23.34% | -24.85% | -21.50% | 20.61% |
| Return on Assets (ROA) | -10.67% | -26.40% | -15.54% | -16.42% | -12.03% | 9.55% |
| Return on Invested Capital (ROIC) | -585.88% | |||||
| Return on Capital Employed (ROCE) | -20.60% | -64.50% | -31.00% | -29.90% | -18.60% | 12.50% |
| Earnings Yield | -9.84% | -47.48% | -16.41% | -7.54% | -3.76% | 2.91% |
| FCF Yield | -13.96% | -31.85% | -20.17% | -7.01% | -3.51% | 4.00% |
| Buyback Yield / Dilution | 0.82% | -0.11% | -1.04% | -12.34% | 2.26% | -21.42% |