Stock-Based Awards (Tables)

12 Months Ended

Dec. 31, 2024

Stock-Based Awards

Summary of assumptions used to determine fair value of stock options granted

	Year Ended
	December 31,
	2024		2023
Risk-free interest rate	3.91	%	3.55	%
Expected term (in years)	6.0		6.2
Expected volatility	81.62	%	77.73	%
Expected dividend yield	0	%	0	%

Summary of stock option activity

				Weighted
		Weighted		Average
		Average		Remaining	Aggregate
	Number	Exercise		Contractual	Intrinsic
(In thousands, except share and per share data and years)	of Shares	Price		Term	Value
				(in years)
Outstanding as of December 31, 2022	5,167,164	$	16.04	7.2	$	15,288
Granted	2,241,550		15.62
Exercised	(71,092)		1.31			473
Forfeited and cancelled	(918,167)		16.85
Outstanding as of December 31, 2023	6,419,455	$	15.94	7.1	$	14
Granted	2,608,700		1.86
Exercised	(162,388)		1.31			285
Forfeited and cancelled	(2,143,800)		15.06
Outstanding as of December 31, 2024	6,721,967	$	11.12	6.8	$	2,968
Options vested and expected to vest as of December 31, 2024	6,721,967	$	11.12	6.8	$	2,968
Options exercisable as of December 31, 2024	3,555,450	$	15.39	5.0	$	944

Summary of restricted stock units activity

		Weighted
		Average
		Grant Date		Aggregate
	Number	Fair Value		Intrinsic
(In thousands, except share and per share data)	of Shares	Per Share		Value
Outstanding as of December 31, 2022	1,520,730	$	14.02
Granted	993,662		15.17
Vested	(745,279)		11.72	$	8,262
Forfeited and cancelled	(247,173)		15.15
Outstanding as of December 31, 2023	1,521,940	$	15.72
Granted	2,852,573		1.39
Vested	(1,473,327)		5.51	$	2,959
Forfeited and cancelled	(625,035)		13.03
Outstanding as of December 31, 2024	2,276,151	$	5.12

Summary of stock-based compensation expense

	Year Ended
	December 31,
(In thousands)	2024		2023
Cost of revenue	$	938	$	1,456
Research and development		3,135		6,801
General and administrative		6,783		12,285
Total stock-based compensation expense	$	10,856	$	20,542