Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
CURRENT ASSETS:
Cash and cash equivalents	$ 133,481	$ 99,710
Accounts receivable	494	1,034
Due from related party	0	61
Prepaid expenses and other current assets	8,576	5,359
Total current assets	142,551	106,164
Property and equipment, net	19,635	7,004
Operating right-of-use assets	5,053	0
In-process research and development	32,900	32,900
Goodwill	18,057	18,057
Deferred initial public offering costs	0	1,013
Restricted cash, non-current	2,268	0
Other assets	4,905	200
TOTAL ASSETS	225,369	165,338
CURRENT LIABILITIES:
Accounts payable	3,737	2,621
Accrued expenses and other current liabilities	9,925	5,228
Operating lease liabilities, current	1,128	0
Due to related party	0	266
Deferred revenue, current portion	0	3,371
Total current liabilities	14,790	11,486
Deferred tax liability	3,461	3,461
Deferred revenue, net of current portion	0	10,260
Loan payable	0	1,808
Deferred rent	0	766
Operating lease liabilities, non-current	4,887	0
Other liabilities	7	221
Total liabilities	23,145	28,002
COMMITMENTS AND CONTINGENCIES (Note 9)
Redeemable convertible preferred stock		233,054
STOCKHOLDERS’ EQUITY (DEFICIT):
Common stock, $0.001 par value; 200,000,000 and 598,232,153 shares authorized as of December 31, 2021 and December 31, 2020, respectively; 47,512,182 and 8,391,793 shares issued and outstanding as of December 31, 2021 and December 31, 2020, respectively	47	8
Additional paid-in capital	363,172	7,109
Accumulated deficit	(160,995)	(102,835)
Total stockholders’ equity (deficit)	202,224	(95,718)
TOTAL LIABILITIES, REDEEMABLE CONVERTIBLE PREFERRED STOCK AND STOCKHOLDERS’ EQUITY (DEFICIT)	225,369	165,338
Series A Redeemable Convertible Preferred Stock
CURRENT LIABILITIES:
Redeemable convertible preferred stock	0	53,593
Series B Redeemable Convertible Preferred Stock
CURRENT LIABILITIES:
Redeemable convertible preferred stock	0	36,336
Series C Redeemable Convertible Preferred Stock
CURRENT LIABILITIES:
Redeemable convertible preferred stock	0	53,221
Series D Redeemable Convertible Preferred Stock
CURRENT LIABILITIES:
Redeemable convertible preferred stock	$ 0	$ 89,904