Prothena Corp (PRTA)
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Fiscal Year End Date: 12/31
(Values in U.S. thousands)
| 03-2026 | 12-2025 | 09-2025 | 06-2025 | 03-2025 | |
| Cash Flows From Operating Activities | |||||
| Net Income | 32,721 | -244,092 | -222,503 | -185,962 | -60,195 |
| Depreciation Amortization | 918 | 3,702 | 2,760 | 1,817 | 909 |
| Income taxes - deferred | 0 | 43,239 | 43,239 | 43,239 | -1,672 |
| Other Working Capital | -6,479 | -4,173 | 5,667 | 17,834 | -3,356 |
| Other Operating Activity | 1,717 | 37,744 | 30,569 | 23,369 | 10,951 |
| Operating Cash Flow | $28,877 | $-163,580 | $-140,268 | $-99,703 | $-53,363 |
| Cash Flows From Investing Activities | |||||
| PPE Investments | N/A | -138 | -138 | -128 | -42 |
| Investing Cash Flow | $0 | $-138 | $-138 | $-128 | $-42 |
| Cash Flows From Financing Activities | |||||
| Common Stock Issued | N/A | -139 | -139 | -122 | -48 |
| Common Stock Repurchased | -6,946 | N/A | N/A | N/A | N/A |
| Financing Cash Flow | $-6,946 | $-139 | $-139 | $-122 | $-48 |
| Beginning Cash Position | 308,391 | 472,248 | 472,248 | 472,248 | 472,248 |
| End Cash Position | 330,322 | 308,391 | 331,703 | 372,295 | 418,795 |
| Net Cash Flow | $21,931 | $-163,857 | $-140,545 | $-99,953 | $-53,453 |
| Free Cash Flow | |||||
| Operating Cash Flow | 28,877 | -163,580 | -140,268 | -99,703 | -53,363 |
| Capital Expenditure | 0 | -138 | -138 | -128 | -42 |
| Free Cash Flow | 28,877 | -163,718 | -140,406 | -99,831 | -53,405 |