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Equity Incentive Awards (Tables) | 3 Months Ended
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Mar. 31, 2024
Share-Based Payment Arrangement [Abstract] |
Schedule of Stock Options Activity | The following table summarizes the Company’s option activity and related information:
| Number of Options (in thousands) |  | Weighted- Average Exercise Price
Balance at December 31, 2023 | 2,303 |  |  | $ | 48.71 |
Options granted | 557 |  |  | 18.51 |
Options exercised | (14) |  |  | 10.14 |
Options forfeited | (86) |  |  | 28.44 |
Balance at March 31, 2024 | 2,760 |  |  | $ | 43.43 |
Exercisable as of March 31, 2024 | 1,253 |  |  | $ | 73.42 |
Schedule of Restricted Stock Units Activity | The following table summarizes the Company’s RSUs activity and related information:
| Number of Units (in thousands) |  | Weighted- Average Grant- Date Fair Value
Outstanding at December 31, 2023 | 154 |  |  | $ | 21.73 |
Granted | 73 |  |  | 19.21 |
Vested and released | (25) |  |  | 27.41 |
Forfeited | (4) |  |  | 10.81 |
Outstanding at March 31, 2024 | 198 |  |  | $ | 20.33 |
Stock-Based Compensation Expense
Schedule of Stock-Based Compensation Expense | The following table presents, by operating expense, the Company’s stock-based compensation expense:
|  |  | Three Months Ended March 31,
|  |  |  |  | 2024 |  | 2023
|  |  |  |  | (In thousands)
Research and development |  |  |  |  | $ | 1,120 |  |  | $ | 1,381 |
General and administrative |  |  |  |  | 3,046 |  |  | 3,182 |
Total stock-based compensation expense |  |  |  |  | $ | 4,166 |  |  | $ | 4,563 |

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