| In millions, except per share items | Dec-31-22 | Dec-31-21 | Dec-31-20 | Dec-31-19 | Dec-31-18 | Dec-31-17 | Dec-31-16 |
| | 10-K | 10-K | 10-K | 10-K | 10-K | 10-K | 10-K |
| Revenues | 0.0 | 0.0 | 0.0 | 7.9 | 8.1 | 6.3 | 0.0 |
| Revenue growth | | | -100.0% | -3.4% | 29.1% | | |
| Cost of goods sold | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 |
| Gross profit | 0.0 | 0.0 | 0.0 | 7.9 | 8.1 | 6.3 | 0.0 |
| Gross margin | | | | 100.0% | 100.0% | 100.0% | |
| Selling, general and administrative [+] | 4.1 | 2.6 | 1.9 | 1.5 | 1.6 | 1.0 | 0.3 |
| General and administrative | 4.1 | 2.6 | 1.9 | 1.5 | 1.6 | 1.0 | 0.3 |
| Research and development | 35.3 | 25.8 | 7.7 | 6.3 | 6.3 | 5.0 | 3.1 |
| Other operating expenses | | | | 7.8 | 7.9 | 6.0 | |
| EBITDA [+] | -39.2 | -28.1 | -9.2 | -7.4 | -7.5 | -5.5 | -3.3 |
| EBITDA growth | 39.7% | 205.9% | 23.7% | -1.2% | 36.5% | 68.9% | |
| EBITDA margin | | | | -94.4% | -92.3% | -87.2% | |
| Depreciation and amortization | 0.2 | 0.3 | 0.4 | 0.3 | 0.2 | 0.1 | 0.1 |
| EBIT [+] | -39.4 | -28.4 | -9.6 | -7.8 | -7.7 | -5.6 | -3.3 |
| EBIT growth | 38.9% | 196.7% | 23.2% | 0.3% | 38.0% | 68.3% | |
| EBIT margin | | | | -98.7% | -95.0% | -88.9% | |
| Non-recurring items [+] | | | | 0.1 | 0.2 | 0.4 | |
| Loss (gain) on sale of assets | | | | | 0.0 | | |
| Interest expense, net [+] | 1.0 | 1.2 | -0.1 | -0.4 | -0.4 | 0.3 | 0.0 |
| Interest expense | 2.1 | 1.3 | 0.0 | 0.0 | 0.0 | 0.5 | |
| Interest income | 1.1 | 0.0 | 0.1 | 0.4 | 0.4 | 0.2 | 0.0 |
| Other income (expense), net [+] | | 0.0 | | | 0.0 | | |
| Gain (loss) on sale of assets | | 0.0 | | | | | |
| Other | -1.0 | -1.2 | 0.1 | | | | |
| Pre-tax income | -40.4 | -29.6 | -9.5 | -7.4 | -7.5 | -6.3 | -3.3 |
| Income taxes | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 |
| Tax rate | 0.0% | 0.0% | 0.0% | 0.0% | 0.0% | 0.0% | 0.0% |
| Net income | -40.4 | -29.6 | -9.5 | -7.4 | -7.5 | -6.3 | -3.3 |
| Net margin | | | | -93.7% | -92.0% | -99.2% | |
| |
| Basic EPS [+] | ($2.62) | ($2.21) | ($0.92) | ($0.72) | ($0.74) | ($0.84) | ($0.52) |
| Growth | 18.4% | 139.7% | 28.2% | -2.6% | -11.8% | 59.8% | |
| Diluted EPS [+] | ($2.62) | ($2.21) | ($0.92) | ($0.72) | ($0.74) | ($0.84) | ($0.52) |
| Growth | 18.4% | 139.7% | 28.2% | -2.6% | -11.8% | 59.8% | |
| |
| Shares outstanding (basic) [+] | 15.4 | 13.4 | 10.3 | 10.2 | 10.1 | 7.5 | 6.3 |
| Growth | 15.2% | 30.3% | 0.4% | 1.0% | 35.7% | 18.2% | |
| Shares outstanding (diluted) [+] | 15.4 | 13.4 | 10.3 | 10.2 | 10.1 | 7.5 | 6.3 |
| Growth | 15.2% | 30.3% | 0.4% | 1.0% | 35.7% | 18.2% | |
| |
| EBIT is a non-GAAP figure that excludes all non-recurring expenses: restructuring costs, asset impairments, IPR&D writeoffs, and other unusual charges. |