CONDENSED CONSOLIDATED BALANCE SHEETS (UNAUDITED) - USD ($) $ in Thousands	Sep. 30, 2022	Dec. 31, 2021
Current assets:
Cash and cash equivalents	$ 123,834	$ 201,661
Short-term investments	140,273	46,459
Interest receivable	261	50
Prepaid expenses and other current assets	5,568	5,178
Prepaid expenses to related party	2,106
Total current assets	272,042	253,348
Restricted cash	852	852
Other assets	734	1,102
Property and equipment, net	943	1,549
Operating lease right-of-use assets	19,127	29,743
Total assets	293,698	286,594
Current liabilities:
Accounts payable	4,889	8,361
Accrued expenses	13,677	20,152
Income tax payable	154	1,007
Operating lease liability, current	1,918	6,591
Amount due to related party	81	1,742
Total current liabilities	20,719	37,853
Operating lease liability, long term	19,753	23,475
Total liabilities	40,472	61,328
Stockholders’ equity:
Preferred stock, $0.0001 par value: 10,000,000 shares authorized at September 30, 2022 and December 31, 2021, respectively; 0 shares issued and outstanding at September 30, 2022 and December 31, 2021, respectively
Common stock, $0.0001 par value: 150,000,000 shares authorized at September 30, 2022 and December 31, 2021, respectively; 93,119,302 and 65,170,332 shares issued at September 30, 2022 and December 31, 2021, respectively; and 92,640,109 and 63,565,886 shares outstanding at September 30, 2022 and December 31, 2021, respectively	9	7
Additional paid-in capital	681,419	522,479
Accumulated other comprehensive loss	(563)	(155)
Accumulated deficit	(427,639)	(297,065)
Total stockholders’ equity	253,226	225,266
Total liabilities and stockholders’ equity	$ 293,698	$ 286,594