Stock-Based Compensation (Tables)

6 Months Ended

Jun. 30, 2025

Share-Based Payment Arrangement [Abstract]

Schedule of stock option activity during the period

The following table summarizes stock option activity for the six months ended June 30, 2025 (in thousands, except share and per share amounts):

	Number of outstanding options	Weighted average exercise price		Weighted average remaining contractual term in years	Aggregate intrinsic value
Balance as of December 31, 2024	2,119,425	$	7.87	7.98	$	751
Granted	948,446	$	3.72
Forfeited/Cancelled	(72,776)	$	6.66
Exercises	(1)	$	2.12		$	—
Balance as of June 30, 2025	2,995,094	$	6.58	7.96	$	—
Vested and expected to vest as of June 30, 2025	2,995,094	$	6.58	7.96	$	—
Exercisable as of June 30, 2025	1,393,408	$	7.02	6.65	$	—

Schedule of restricted stock award activity during the period

A summary of restricted stock award activity for the six months ended June 30, 2025 is as follows:

	Number of shares	Weighted average fair value
Unvested as of December 31, 2024	15,943	$	1.75
Vested	(15,943)	$	1.75
Unvested as of June 30, 2025	—	$	—

Schedule of Stock-Based Compensation Expense

The following table presents the components and classification of stock-based compensation expense for the three and six months ended June 30, 2025 and 2024 (in thousands):

	Three Months Ended June 30,				Six Months Ended June 30,
	2025		2024		2025		2024
Options	$	999	$	756	$	1,829	$	1,581
Restricted stock awards	3		30		34		61
Total	$	1,002	$	786	$	1,863	$	1,642
Research and development	$	488	$	399	$	963	$	905
General and administrative	514		387		900		737
Total	$	1,002	$	786	$	1,863	$	1,642