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Equity Incentive Awards (Tables) | 9 Months Ended
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Sep. 30, 2023
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, 2022 | 19,320 |  |  | $ | 5.79 |
Options granted | 6,056 |  |  | 1.05 |
Options exercised | (1) |  |  | 1.29 |
Options forfeited | (1,314) |  |  | 3.05 |
Balance at September 30, 2023 | 24,061 |  |  | $ | 4.74 |
Exercisable as of September 30, 2023 | 9,724 |  |  | $ | 8.54 |
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, 2022 | 1,693 |  |  | $ | 2.90 |
Granted | 539 |  |  | 0.77 |
Vested and released | (491) |  |  | 3.14 |
Forfeited | (128) |  |  | 1.94 |
Outstanding at September 30, 2023 | 1,613 |  |  | $ | 2.20 |
Schedule of Stock-Based Compensation Expense | The following table presents, by operating expense, the Company’s stock-based compensation expense:
| Three Months Ended September 30, |  | Nine Months Ended September 30,
| 2023 |  | 2022 |  | 2023 |  | 2022
| (In thousands)
Research and development | $ | 1,164 |  |  | $ | 1,432 |  |  | $ | 3,925 |  |  | $ | 5,195 |
General and administrative | 3,225 |  |  | 3,071 |  |  | 9,496 |  |  | 9,631 |
Total stock-based compensation expense | $ | 4,389 |  |  | $ | 4,503 |  |  | $ | 13,421 |  |  | $ | 14,826 |

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- Definition Tabular disclosure of the number and weighted-average grant date fair value for restricted stock units that were outstanding at the beginning and end of the year, and the number of restricted stock units that were granted, vested, or forfeited during the year. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480429/718-10-50-2 + Details
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