Stock award plan (Tables)
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9 Months Ended |
Sep. 30, 2026 |
| 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 | | 827,789 | | $ | 75.87 | | | | | | | Exercised | | (648,218) | | $ | 38.55 | | | | | | | Forfeited/Cancelled | | (21,999) | | $ | 44.05 | | | | | | | Outstanding at September 30, 2026 | | 6,553,774 | | $ | 47.61 | | 5.65 | years | | $ | 123,254 | Expected to vest at September 30, 2026 | | 1,529,433 | | $ | 56.39 | | 8.51 | years | | $ | 20,798 | Exercisable at September 30, 2026 | | 4,867,971 | | $ | 44.40 | | 4.65 | years | | $ | 100,949 |
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| Schedule of assumptions used to estimate fair values of grants made on the date of grant |
| | | | | | Nine months ended | | | | September 30, 2026 | | Risk-free interest rate | | 3.78% - 4.85% | | 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 | | 1,341,523 | | | 76.21 | Performance based PSUs with conditions satisfied | | 25,000 | | | 46.37 | Vested | | (1,361,190) | | | 38.04 | Forfeited | | (202,804) | | | 46.15 | Unvested at September 30, 2026 | | 3,469,659 | | $ | 52.55 |
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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) | PSUs with performance or market conditions not satisfied and forfeited during the period | | (37,500) | | — | | (37,500) | Total PSUs granted for which the performance or market conditions were not yet satisfied at September 30, 2026 | | — | | 115,625 | | 115,625 |
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| Schedule of share-based compensation expense recorded in the statement of operations |
| | | | | | | | | | | | | | | | Three Months Ended September 30, | | Nine Months Ended September 30, | | | | 2026 | | 2025 | | 2026 | | 2025 | | Research and development | | $ | 10,479 | | $ | 9,133 | | $ | 32,155 | | $ | 26,827 | | Selling, general and administrative | | | 13,348 | | | 10,293 | | | 38,384 | | | 29,202 | | Total | | $ | 23,827 | | $ | 19,426 | | $ | 70,539 | | $ | 56,029 | |
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