CONDENSED CONSOLIDATED BALANCE SHEETS (UNAUDITED) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Current assets:
Cash and cash equivalents	$ 86,039	$ 90,121
Short-term investments	54,491	93,822
Interest receivable	181	206
Prepaid expenses and other current assets	771	3,486
Total current assets	141,482	187,635
Restricted cash	554	852
Other assets		122
Operating lease right-of-use assets	2,107	2,187
Total assets	144,143	190,796
Current liabilities:
Accounts payable	765	6,761
Accrued expenses	4,596	10,086
Operating lease liability, current	2,295	10,781
Total current liabilities	7,656	28,367
Operating lease liability, long term	16,047	16,648
Total liabilities	23,703	45,015
Stockholders’ equity:
Preferred stock, $0.0001 par value: 10,000,000 shares authorized at March 31, 2024 and December 31, 2023, respectively; 0 shares issued and outstanding at March 31, 2024 and December 31, 2023, respectively
Common stock, $0.0001 par value: 300,000,000 shares authorized at March 31, 2024 and December 31, 2023, respectively; 114,881,765 and 114,153,538 shares issued at March 31, 2024 and December 31, 2023, respectively; and 114,881,765 and 114,148,991 shares outstanding at March 31, 2024 and December 31, 2023, respectively	11	11
Additional paid-in capital	807,059	802,025
Accumulated other comprehensive loss	(138)	(62)
Accumulated deficit	(686,492)	(656,193)
Total stockholders’ equity	120,440	145,781
Total liabilities and stockholders’ equity	$ 144,143	190,796
Related Party
Current liabilities:
Amount due to related party		$ 739