Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Current assets:
Cash and cash equivalents	$ 277,544	$ 84,330
Short-term marketable debt securities	0	10,284
Accounts Receivable - related party	185
Prepaid expenses and other current assets	4,709	5,722
Total current assets	282,438	100,336
Property and equipment, net	14,643	2,790
Operating lease right-of-use asset	20,358	23,066
Goodwill	19,462	20,089
In-process research and development		1,190
Restricted cash	150	4,527
Long-term marketable debt securities		0
Other non-current assets	1,887	1,837
Total assets	338,938	153,835
Current liabilities:
Accounts payable	3,263	1,552
Contract liabilities—related party, current	4,805	13,980
Accrued and other current liabilities	6,682	5,732
Operating lease liability	1,567	1,215
Total current liabilities	16,317	22,479
Operating lease liability, net of current portion	19,377	20,424
Contingent consideration liability		980
Deferred tax liability		125
Other non-current liabilities	115
Total liabilities	35,809	44,008
Commitments and contingencies (Note 12)
Stockholders’ equity (deficit):
Preferred stock, $0.0001 par value, 10,000,000 shares authorized as of December 31, 2021 and December 31, 2020, respectively; none issued and outstanding as of December 31, 2021 and December 31, 2020, respectively
Common stock, $0.0001 par value, 150,000,000 shares authorized as of December 31, 2021 and December 31, 2020, respectively; 39,736,914 and 19,677,249 shares issued and outstanding as of December 31, 2021 and December 31, 2020, respectively	4	2
Additional paid-in capital	471,449	216,126
Accumulated deficit	(168,324)	(106,325)
Accumulated other comprehensive income		24
Total stockholders' equity	303,129	109,827
Total liabilities, redeemable convertible preferred stock, and stockholders' equity	$ 338,938	$ 153,835