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Stock Option and Grant Plan (Tables) | 9 Months Ended
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Sep. 30, 2022
Share-Based Payment Arrangement [Abstract] |
Summary of Stock Option Activity | A summary of option activity for the nine months ended September 30, 2022, is as follows:
|  | Number of Options |  |  | Weighted- Average Exercise Price |  |  | Weighted- Average Remaining Contractual Term (in years) |  |  | Aggregate Intrinsic Value (in thousands) |
Outstanding at December 31, 2021 |  |  | 5,339,011 |  |  | $ | 5.54 |  |  |  | 8.7 |  |  | $ | 15,627 |
Granted |  |  | 3,968,720 |  |  | $ | 19.22 |  |  |  |  |  |  |
Exercised |  |  | (669,040 | ) |  | $ | 0.37 |  |  |  |  |  | $ | 5,961 |
Cancelled or forfeited |  |  | (63,242 | ) |  | $ | 13.28 |  |  |  |  |  |  |
Outstanding at September 30, 2022 |  |  | 8,575,449 |  |  | $ | 12.22 |  |  |  | 8.4 |  |  | $ | 137,204 |
Options exercisable as of September 30, 2022 |  |  | 1,792,734 |  |  | $ | 5.13 |  |  |  | 7.0 |  |  | $ | 41,265 |
Options unvested as of September 30, 2022 |  |  | 6,782,715 |  |  | $ | 14.10 |  |  |  | 8.8 |  |  | $ | 95,939 |
Weighted average grant-date fair value of options granted during the period |  | $ | 14.32 |  |  |  |  |  |  |  |  |  |
Summary of Restricted Stock Unit Activity | A summary of restricted stock unit activity for the nine months ended September 30, 2022, is as follows:
|  | Number of shares |  |  | Weighted Average Grant Date Fair Value |
Nonvested as of December 31, 2021 |  |  | — |  |  | $ | — |
Granted |  |  | 693,613 |  |  | $ | 18.62 |
Vested |  |  | — |  |  | $ | — |
Forfeited |  |  | (5,700 | ) |  | $ | 21.59 |
Nonvested as of September 30, 2022 |  |  | 687,913 |  |  | $ | 18.60 |
Summary of Stock-Based Compensation | Stock-based compensation expense recorded in the condensed consolidated statements of comprehensive income for the three and nine months ended September 30, 2022 and 2021, is as follows:
|  | Three Months Ended September 30, |  |  | Nine Months Ended September 30, |
|  | 2022 |  |  | 2021 |  |  | 2022 |  |  | 2021 |
|  | (in thousands) |  |  | (in thousands) |
Research and development |  | $ | 1,416 |  |  | $ | 187 |  |  | $ | 4,001 |  |  | $ | 578 |
Selling, general and administrative |  |  | 4,108 |  |  |  | 615 |  |  |  | 11,622 |  |  |  | 1,467 |
Total stock-based compensation expense |  | $ | 5,524 |  |  | $ | 802 |  |  | $ | 15,623 |  |  | $ | 2,045 |
Summary of Stock-Based Compensation by Type of Award | The following table summarizes stock-based compensation by type of award:
|  | Three Months Ended September 30, |  |  | Nine Months Ended September 30, |
|  | 2022 |  |  | 2021 |  |  | 2022 |  |  | 2021 |
|  | (in thousands) |  |  | (in thousands) |
Stock options |  | $ | 4,748 |  |  | $ | 802 |  |  | $ | 13,611 |  |  | $ | 2,045 |
Restricted stock units |  |  | 776 |  |  |  | — |  |  |  | 2,012 |  |  |  | — |
Total stock-based compensation expense |  | $ | 5,524 |  |  | $ | 802 |  |  | $ | 15,623 |  |  | $ | 2,045 |
Summary of Unrecognized Stock-Based Compensation Expense and Weighted-Average Recognition Period | The following table summarizes unrecognized stock-based compensation expense as of September 30, 2022, by type of awards, and the weighted-average period over which that expense is expected to be recognized. The total unrecognized stock-based compensation expense will be adjusted for actual forfeitures as they occur.
|  | As of September 30, 2022 |
|  | Unrecognized Expense |  |  | Weighted-average Recognition Period |
|  | (in thousands) |  |  | (in years) |
Stock options |  | $ | 59,563 |  |  |  | 3.13 |
Restricted stock units |  | $ | 10,781 |  |  |  | 3.38 |

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- Definition Tabular disclosure of allocation of amount expensed and capitalized for award under share-based payment arrangement to statement of income or comprehensive income and statement of financial position. Includes, but is not limited to, corresponding line item in financial statement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (h)(1) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 + Details
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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 -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 + Details
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- Definition Tabular disclosure for stock option plans. Includes, but is not limited to, outstanding awards at beginning and end of year, grants, exercises, forfeitures, and weighted-average grant date fair value. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (d) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (e) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 + Details
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