| 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 | Dec-31-15 |
| | 10-K | 10-K | 10-K | 10-K | 10-K | 10-K | 10-K | 10-K |
| Revenues | 110.8 | 85.1 | 16.6 | 6.7 | 0.9 | 0.2 | 8.1 | 6.0 |
| Revenue growth | 30.2% | 412.6% | 148.6% | 639.4% | 336.2% | -97.4% | 34.5% | 97.7% |
| Cost of goods sold | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 |
| Gross profit | 110.8 | 85.1 | 16.6 | 6.7 | 0.9 | 0.2 | 8.1 | 6.0 |
| Gross margin | 100.0% | 100.0% | 100.0% | 100.0% | 100.0% | 100.0% | 100.0% | 100.0% |
| Selling, general and administrative [+] | 23.9 | 20.9 | 18.9 | 16.4 | 18.2 | 18.8 | 13.1 | 8.3 |
| General and administrative | 23.9 | 20.9 | 18.9 | 16.4 | 18.2 | 18.8 | 13.1 | 8.3 |
| Research and development | 72.4 | 68.7 | 54.5 | 42.7 | 47.7 | 45.2 | 29.7 | 23.0 |
| EBITDA [+] | 15.8 | -3.3 | -56.1 | -51.7 | -64.0 | -63.0 | -33.9 | -24.3 |
| EBITDA growth | -573.1% | -94.0% | 8.4% | -19.2% | 1.6% | 86.1% | 39.6% | 66.9% |
| EBITDA margin | 14.3% | -3.9% | -337.9% | -774.7% | -7092.7% | -30451.2% | -419.0% | -403.6% |
| Depreciation and amortization | 1.3 | 1.3 | 0.7 | 0.7 | 1.0 | 0.8 | 0.8 | 1.0 |
| EBIT [+] | 14.5 | -4.6 | -56.8 | -52.5 | -65.0 | -63.8 | -34.7 | -25.3 |
| EBIT growth | -416.2% | -91.9% | 8.3% | -19.3% | 1.9% | 84.0% | 37.0% | 64.3% |
| EBIT margin | 13.1% | -5.4% | -342.4% | -785.6% | -7200.7% | -30813.5% | -428.9% | -421.0% |
| Interest expense, net [+] | 1.0 | 2.8 | 1.3 | 0.7 | 0.4 | 0.6 | 1.0 | 0.8 |
| Interest expense | 3.0 | 2.8 | 1.6 | 1.5 | 1.5 | 1.2 | 1.3 | 0.9 |
| Interest income | 2.1 | 0.0 | 0.3 | 0.8 | 1.1 | 0.6 | 0.2 | 0.2 |
| Other income (expense), net [+] | 21.2 | -2.3 | -10.8 | -2.2 | 0.1 | -0.9 | -0.5 | 0.9 |
| Gain (loss) on debt retirement | | | -0.5 | | | -0.7 | | |
| Gain (loss) on foreign currency transactions | 0.0 | | 0.1 | 0.0 | 0.1 | -0.1 | -0.5 | 0.9 |
| Change in fair value of warrants | 20.9 | -2.3 | -10.4 | -0.9 | | | | |
| Other | 0.3 | 0.0 | 0.1 | -1.3 | 0.0 | -0.2 | 0.0 | 0.0 |
| Pre-tax income | 34.8 | -9.7 | -68.9 | -55.4 | -65.3 | -65.3 | -36.2 | -25.2 |
| Income taxes | -0.6 | 16.0 | 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% |
| Net income | 35.4 | -25.7 | -68.9 | -55.4 | -65.3 | -65.3 | -40.8 | -32.5 |
| Net margin | 31.9% | -30.2% | -415.0% | -829.0% | -7235.4% | -31556.0% | -504.5% | -540.8% |
| |
| Basic EPS [+] | $0.24 | ($0.22) | ($0.68) | ($1.22) | ($2.92) | ($3.20) | ($3.89) | ($15.12) |
| Growth | -208.8% | -67.0% | -44.0% | -58.4% | -8.8% | -17.7% | -74.3% | 93.0% |
| Diluted EPS [+] | $0.24 | ($0.22) | ($0.68) | ($1.22) | ($2.92) | ($3.20) | ($3.89) | ($15.12) |
| Growth | -207.9% | -67.0% | -44.0% | -58.4% | -8.8% | -17.7% | -74.3% | 93.0% |
| |
| Shares outstanding (basic) [+] | 144.8 | 114.3 | 101.2 | 45.5 | 22.4 | 20.4 | 10.5 | 2.2 |
| Growth | 26.6% | 13.0% | 122.2% | 103.4% | 9.6% | 94.6% | 388.0% | 2.9% |
| Shares outstanding (diluted) [+] | 145.9 | 114.3 | 101.2 | 45.5 | 22.4 | 20.4 | 10.5 | 2.2 |
| Growth | 27.6% | 13.0% | 122.2% | 103.4% | 9.6% | 94.6% | 388.0% | 2.9% |
| |
| EBIT is a non-GAAP figure that excludes all non-recurring expenses: restructuring costs, asset impairments, IPR&D writeoffs, and other unusual charges. |