Stock-Based Compensation (Tables)

3 Months Ended

Mar. 31, 2022

Share-based Payment Arrangement [Abstract]

Schedule of Stock Option Activity

The following summarizes stock option activity:

	Number of options			Weighted average exercise price		Weighted average remaining contractual term (years)		Aggregate intrinsic value (in thousands)
Outstanding—December 31, 2021		5,563,513		$	7.92		8.6	$	70,045
Granted		1,671,875			13.41
Exercised		(60,240	)		2.53
Forfeited		(70,217	)		5.25
Outstanding—March 31, 2022		7,104,931		$	9.28		9.2	$	40,521
Exercisable—March 31, 2022		909,028		$	4.82		8.8	$	8,756

Schedule of Restricted Stock Award Activity

The following summarizes restricted stock activity:

	Number of shares			Weighted average grant date fair value
Unvested as of December 31, 2021		258,329		$	0.90
Vested		(34,505	)	$	0.78
Unvested as of March 31, 2022		223,824		$	0.92

Schedule of Stock Based Compensation Expense

Stock-based compensation expense is classified as follows (in thousands):

	Three months ended March 31,
	2022		2021
Research and development	$	1,157	$	60
General and administrative		1,094		192
Total stock-based compensation expense	$	2,251	$	252