Stock-based compensation (Tables)

3 Months Ended

Mar. 31, 2023

Share-Based Payment Arrangement [Abstract]

Schedule of stock-based compensation expense

Stock-based compensation expense for the three months ended March 31, 2023 and 2022 was classified in the Company’s condensed consolidated statement of operations and comprehensive loss as follows (in thousands):

	Three Months Ended March 31,
	2023		2022
Stock-based compensation expense:
Research and development	$	2,583	$	3,612
General and administrative	3,668		5,326
Total stock-based compensation expense	$	6,251	$	8,938

Summary of RSU activity

The following table summarizes the Company’s RSU activity for the three months ended March 31, 2023:

	Shares	Weighted-Average Grant Date Fair Value
Outstanding as of December 31, 2022	—	$	—
Issued	724,500	5.68
Vested	—	—
Forfeited	(2,980)	$	5.67
Outstanding as of March 31, 2023	721,520	$	—

As of March 31, 2023, the unrecognized compensation cost related to outstanding RSUs was $4.0 million, which is expected to be recognized over a weighted-average period of 3.9 years.