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Stock Option and Grant Plan (Tables)

9 Months Ended

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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Tabular disclosure of cost recognized for award under share-based payment arrangement by plan. Includes, but is not limited to, related tax benefit.

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
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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.

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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.

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