Stock award plan (Tables)
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6 Months Ended |
Jun. 30, 2026 |
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| Stock award plan |
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| Summary of stock option activity |
| | | | | | | | | | | | | | | | | | | Weighted- | | | | | | | | | Weighted- | | average | | | Aggregate | | | | | average | | remaining | | | intrinsic | | | Number of | | exercise | | contractual | | | value(in | | | options | | price | | term | | | thousands) | | | | | | | | | | | | | Outstanding at December 31, 2025 | | 6,396,202 | | $ | 43.02 | | | | | | | Granted | | 757,556 | | $ | 76.44 | | | | | | | Exercised | | (506,463) | | $ | 38.80 | | | | | | | Forfeited/Cancelled | | (21,132) | | $ | 43.72 | | | | | | | Outstanding at June 30, 2026 | | 6,626,163 | | $ | 47.16 | | 5.84 | years | | $ | 227,986 | Expected to vest at June 30, 2026 | | 1,593,265 | | $ | 54.41 | | 8.62 | years | | $ | 43,276 | Exercisable at June 30, 2026 | | 4,855,637 | | $ | 44.32 | | 4.81 | years | | $ | 180,891 |
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| Schedule of assumptions used to estimate fair values of grants made on the date of grant |
| | | | | | Six months ended | | | | June 30, 2026 | | Risk-free interest rate | | 3.78% - 4.21% | | Expected volatility | | 54% | | Expected term | | 5.5 years | |
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| Summary of information on the Company's restricted stock |
| | | | | | | | Restricted Stock Units | | | | | Weighted | | | | | Average | | | | | Grant | | | Number of | | Date | | | Shares | | Fair Value | Unvested at December 31, 2025 | | 3,667,130 | | $ | 38.20 | Granted | | 1,293,798 | | | 76.53 | Performance based PSUs with conditions satisfied | | 25,000 | | | 46.37 | Vested | | (1,294,464) | | | 38.16 | Forfeited | | (169,015) | | | 45.16 | Unvested at June 30, 2026 | | 3,522,449 | | $ | 52.02 |
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| Schedule of information about Performance-based restricted stock units |
| | | | | | | | | Performance-based Restricted Stock Units |
| | Performance Conditions | | Market Conditions | | Total | Total PSUs granted for which the performance or market conditions were not yet satisfied at December 31, 2025 | | 25,000 | | 115,625 | | 140,625 | PSUs with performance or market conditions granted during the period | | 37,500 | | — | | 37,500 | PSUs with performance or market conditions satisfied during the period | | (25,000) | | — | | (25,000) | Total PSUs granted for which the performance or market conditions were not yet satisfied at June 30, 2026 | | 37,500 | | 115,625 | | 153,125 |
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| Schedule of share-based compensation expense recorded in the statement of operations |
| | | | | | | | | | | | | | | | Three Months Ended June 30, | | Six Months Ended June 30, | | | | 2026 | | 2025 | | 2026 | | 2025 | | Research and development | | $ | 10,547 | | $ | 9,030 | | $ | 21,677 | | $ | 17,693 | | Selling, general and administrative | | | 12,744 | | | 9,513 | | | 25,035 | | | 18,910 | | Total | | $ | 23,291 | | $ | 18,543 | | $ | 46,712 | | $ | 36,603 | |
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