Consolidated balance sheets - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Current assets:
Cash and cash equivalents	$ 186,816	$ 220,383
Restricted cash	164	560
Short-term investments	3,918	23,130
Other current assets	13,526	5,944
Total current assets	204,424	250,017
Operating lease right-of-use assets	8,789	6,901
Property and equipment, net	6,180	8,007
Long-term investments	15,110
Other assets	866	377
Total assets	235,369	265,302
Current liabilities:
Accounts payable	3,015	3,313
Accrued liabilities	25,394	16,564
Operating lease liabilities, current	2,769	2,442
Finance lease liabilities, current	138	64
Deferred Revenue from collaborations, current	7,641	7,891
Total current liabilities	38,957	30,274
Operating lease liabilities, net of current portion	11,287	10,371
Finance lease liabilities, net of current portion	261	130
Long term liabilities	133	379
Deferred revenue from collaborations		4,109
Total liabilities	50,638	45,263
Stockholders’ equity:
Preferred Stock, $0.0001 par value; 10,000,000 shares authorized as of December 31, 2021 and 2020, respectively; no shares issued and outstanding as of December 31, 2021 and 2020, respectively.
Common stock, $0.0001 par value; 320,000,000 shares authorized as of December 31, 2021 and 2020, respectively; 42,690,229 and 38,120,606 shares issued and outstanding as of December 31, 2021 and 2020, respectively	4	4
Additional paid-in capital	487,347	394,963
Accumulated deficit	(303,072)	(174,740)
Accumulated other comprehensive income (loss)	452	(188)
Total stockholders’ equity	184,731	220,039
Total liabilities, redeemable convertible preferred stock, and stockholders’ equity	$ 235,369	$ 265,302