CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Current assets:
Cash and cash equivalents	$ 57,706	$ 119,801
Marketable securities	172,539	87,668
Prepaid expenses	4,368	4,836
Other current assets	2,337	2,094
Total current assets	236,950	214,399
Restricted cash equivalents	2,413	2,413
Property and equipment, net	12,634	6,853
Operating lease right-of-use assets	44,444	15,670
Other assets	2,925	3,255
Total assets	299,366	242,590
Current liabilities:
Accounts payable	1,772	1,545
Accrued liabilities	7,889	6,335
Operating lease liabilities	3,272	1,839
Other current liabilities	186	434
Total current liabilities	13,119	10,153
Long-term liabilities:
Operating lease liabilities—non-current	35,640	16,174
Total liabilities	48,759	26,327
Stockholders’ equity (deficit):
Preferred stock, $0.0001 par value; 10,000,000 shares authorized as of December 31, 2022 and December 31, 2021; 0 shares issued and outstanding as of December 31, 2022 and December 31, 2021
Common stock, $0.0001 par value; 400,000,000 shares authorized as of December 31, 2022 and December 31, 2021; 66,079,597 and 37,375,428 shares issued and 65,996,138 and 37,174,741 outstanding as of December 31, 2022 and December 31, 2021, respectively	7	4
Additional paid-in capital	473,587	346,382
Accumulated other comprehensive loss	(770)
Accumulated deficit	(222,217)	(130,123)
Total stockholders' equity	250,607	216,263
Total liabilities and stockholders equity	$ 299,366	$ 242,590