| Schedule of Stock-Based Compensation Expense |
Total stock-based compensation expense for the three and six months ended June 30, 2026 and 2025 was as follows (in thousands): | | | | | | | | | | | | | | | | | | | | | | | | | Three Months Ended June 30, | | Six Months Ended June 30, | | 2026 | | 2025 | | 2026 | | 2025 | Cost of revenue | $ | 15,353 | | | $ | 187 | | | $ | 16,303 | | | $ | 513 | | Research and development | 222,147 | | | 9,301 | | | 227,846 | | | 15,013 | | Sales and marketing | 71,055 | | | 1,533 | | | 72,847 | | | 3,482 | | General and administrative | 68,453 | | | 2,260 | | | 69,605 | | | 3,427 | | Total stock-based compensation expense | $ | 377,008 | | | $ | 13,281 | | | $ | 386,601 | | | $ | 22,435 | |
The following table presents total stock-based compensation expense by security type included in the unaudited condensed consolidated statements of operations (in thousands): | | | | | | | | | | | | | | | | | | | | | | | | | Three Months Ended June 30, | | Six Months Ended June 30, | | 2026 | | 2025 | | 2026 | | 2025 | | Stock options | $ | 9,161 | | | $ | 13,043 | | | $ | 18,579 | | | $ | 21,970 | | | RSUs | 332,920 | | | — | | | 332,920 | | | — | | | PRSUs | 34,223 | | | — | | | 34,223 | | | — | | | Special bonus awards | 174 | | | 238 | | | 349 | | | 465 | | | ESPP | 530 | | | — | | | 530 | | | — | | Total stock-based compensation expense | $ | 377,008 | | | $ | 13,281 | | | $ | 386,601 | | | $ | 22,435 | |
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