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EQUITY INCENTIVE PLANS​ (Tables) | 3 Months Ended
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Mar. 31, 2025
Share-Based Payment Arrangement [Abstract] |
Schedule of Stock-Based Compensation Expense Recognized | Stock-based compensation expense recognized for stock options, RSUs and our ESPP is recorded as operating expenses in our condensed statements of operations and comprehensive loss, as follows:
| Three Months Ended March 31, |  |
(in thousands) | 2025 |  | 2024 |  |  |  |
Selling, general and administrative | $ | 8,484 |  |  | $ | 5,646 |  |  |  |  |
Research and development | 3,604 |  |  | 1,970 |  |  |  |  |
Total | $ | 12,088 |  |  | $ | 7,616 |  |  |  |  |
Schedule of Total Unrecognized Stock-Based Compensation Expense, Net of Estimated Forfeitures | A summary of our total unrecognized stock-based compensation expense, net of estimated forfeitures, as of March 31, 2025 is as follows:
| Unrecognized Compensation Expense (in thousands) |  | Average Remaining Vesting Period (in years)
Stock option grants | $ | 64,626 |  |  | 2.88
RSU grants | $ | 79,520 |  |  | 3.30
ESPP | $ | 304 |  |  | 0.42
Schedule of Stock Option Activity | A summary of our stock option activity and related information for the 2025 first quarter is as follows:
| Number of Shares (in thousands) |  | Weighted-Average Exercise Price per Share
Balance as of December 31, 2024 | 28,085 |  |  | $ | 5.63 |
Options granted | 4,113 |  |  | $ | 5.21 |
Options exercised | (390) |  |  | $ | 1.20 |
Options forfeited or canceled | (821) |  |  | $ | 7.91 |
Balance as of March 31, 2025 | 30,987 |  |  | $ | 5.57 |
Exercisable as of March 31, 2025 | 15,715 |  |  | $ | 5.45 |
Schedule of Restricted Stock Units Activity | A summary of our RSUs activity and related information for the 2025 first quarter is as follows:
| Number of RSUs (in thousands) |  | Weighted-Average Grant Date Fair Value Per Share
Non-vested restricted stock units as of December 31, 2024 | 8,013 |  |  | $ | 6.59 |
Granted | 7,093 |  |  | $ | 5.21 |
Vested | (573) |  |  | $ | 6.04 |
Forfeited | (425) |  |  | $ | 5.79 |
Non-vested restricted stock units as of March 31, 2025 | 14,108 |  |  | $ | 5.94 |

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