| In millions, except per share items | Dec-31-22 | Dec-31-21 | Dec-31-20 | Dec-31-19 |
| | 10-K | 10-K | 10-K | 10-K |
| Licensing and collaboration revenue | 13.9 | 9.6 | 12.4 | 5.8 |
| Licensing and collaboration revenue growth | 44.3% | -22.4% | 113.6% | |
| Operating expenses: | | | | |
| Research and development | 82.2 | 52.3 | 34.4 | 23.6 |
| General and administrative | 38.0 | 24.3 | 14.1 | 16.5 |
| Total operating expenses | 120.3 | 76.6 | 48.5 | 40.1 |
| Loss from operations | -106.4 | -67.0 | -36.1 | -34.3 |
| Operating margin | -768.2% | -697.8% | -292.2% | -592.7% |
| |
| Other income (expense): | | | | |
| Change in fair value of equity securities | -0.1 | | -0.7 | 2.3 |
| Change in fair value of MSKCC success payments liability | -2.4 | 1.4 | | |
| Other income, net | 4.8 | 0.2 | 0.5 | |
| Total other income | 7.0 | 0.4 | 0.5 | 3.3 |
| Net loss | -99.4 | -66.9 | -34.3 | -23.4 |
| |
| Other comprehensive income (loss): | | | | |
| Net comprehensive loss | -100.8 | -67.1 | -34.3 | -23.4 |
| |
| Net loss per share, basic (in dollars per share) | ($1.64) | ($2.11) | ($4.01) | ($2.80) |
| Net loss per share, diluted (in dollars per share) | ($1.64) | ($2.11) | ($4.01) | ($2.80) |
| |
| Weighted-average common shares outstanding, basic (in shares) | 60.8 | 31.7 | 8.5 | 8.4 |
| Weighted-average common shares outstanding, diluted (in shares) | 60.8 | 31.7 | | |