CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021
Current assets:
Cash and cash equivalents	$ 71,172	$ 186,816
Restricted cash	21	164
Short-term investments	88,172	3,918
Other current assets	8,320	13,526
Total current assets	167,685	204,424
Operating lease right-of-use assets	8,441	8,789
Property and equipment, net	5,781	6,180
Long-term investments	0	15,110
Other assets	616	866
Total assets	182,523	235,369
Current liabilities:
Accounts payable	2,762	3,015
Accrued liabilities	12,824	25,394
Operating lease liabilities, current	2,796	2,769
Finance lease liabilities, current	138	138
Deferred revenue from collaborations, current	13,133	7,641
Total current liabilities	31,653	38,957
Operating lease liabilities, net of current portion	10,302	11,287
Finance lease liabilities, net of current portion	201	261
Other liabilities	133	133
Deferred revenue from collaborations, net of current portion	3,253
Total liabilities	45,542	50,638
Commitments and contingencies (Note 9)
Stockholders’ equity:
Preferred Stock, $0.0001 par value; 10,000,000 shares authorized as of March 31, 2022 (unaudited) and December 31, 2021, respectively; no shares issued and outstanding as of March 31, 2022 (unaudited) and December 31, 2021, respectively.
Common stock, $0.0001 par value; 320,000,000 shares authorized as of March 31, 2022 (unaudited) and December 31, 2021, respectively; 42,695,195 and 42,690,229 shares issued and outstanding as of March 31, 2022 (unaudited) and December 31, 2021, respectively.	4	4
Additional paid-in capital	495,538	487,347
Accumulated deficit	(358,611)	(303,072)
Accumulated other comprehensive loss	50	452
Total stockholders’ equity	136,981	184,731
Total liabilities and stockholders’ equity	$ 182,523	$ 235,369