| In millions, except per share items | Dec-31-22 | Dec-31-21 | Dec-31-20 |
| | 10-K | 10-K | 10-K |
| ASSETS | | | |
| CURRENT ASSETS | | | |
| Cash and cash equivalents | 58.3 | 240.4 | |
| Marketable securities, short-term | 189.3 | 135.4 | |
| Accounts receivable | 0.2 | 1.2 | |
| Contract assets | 2.2 | 1.5 | |
| Other receivables | 2.2 | 5.5 | |
| Prepaid expenses and other current assets | 7.9 | 7.2 | |
| Total current assets | 260.2 | 391.2 | |
| |
| NON-CURRENT ASSETS | | | |
| Investments in equity securities | 7.7 | 7.6 | |
| Marketable securities, long-term | 69.4 | 37.7 | |
| Property and equipment, net | 10.7 | 4.9 | |
| Other assets | 1.5 | 1.0 | |
| TOTAL ASSETS | 373.8 | 442.4 | |
| |
| LIABILITIES AND STOCKHOLDERS’ EQUITY | | | |
| CURRENT LIABILITIES | | | |
| Accounts payable | 1.1 | 4.0 | |
| Accrued expenses and other current liabilities | 16.1 | 13.1 | |
| Lease liabilities, current | 1.0 | | |
| Total current liabilities | 28.1 | 25.8 | |
| |
| LONG-TERM LIABILITIES | | | |
| MSKCC success payments liability | 1.7 | 4.1 | |
| Deferred tax liabilities | 0.4 | 0.5 | |
| Total liabilities | 72.9 | 54.5 | |
| |
| COMMITMENTS AND CONTINGENCIES (Note 9) | | | |
| STOCKHOLDERS’ EQUITY | | | |
| Common stock, value, issued | 0.0 | 0.0 | |
| Additional paid-in-capital | 499.6 | 485.7 | |
| Accumulated other comprehensive loss | -1.5 | -0.1 | |
| Accumulated deficit | -197.2 | -97.8 | |
| Total stockholders’ equity | 300.9 | 387.8 | |
| TOTAL LIABILITIES AND STOCKHOLDERS’ EQUITY | 373.8 | 442.4 | |