Condensed Consolidated Balance Sheets (Unaudited) - USD ($) $ in Thousands	Sep. 30, 2020	Dec. 31, 2019
Current assets:
Cash and cash equivalents	$ 56,197	$ 154,666
Investments	276,875	0
Prepaid expenses and other current assets	3,356	1,048
Total current assets	336,428	155,714
Equipment, net	229	164
Restricted cash	1,223	55
Deferred offering costs	0	2,303
Right-of-use asset	8,463
Other non-current assets	92	59
Total assets	346,435	158,295
Current liabilities:
Accounts payable	2,932	1,964
Amounts due to related party	190	0
Accrued expenses and other current liabilities	8,219	2,899
Total current liabilities	11,341	4,863
Derivative liabilities	0	16
Non-current operating lease liability	7,749
Total liabilities	19,090	4,879
Commitments and contingencies (Note 11)	0	0
Convertible preferred stock (Note 7)	0	200,573
Stockholders' equity (deficit):
Common stock; $0.0001 par value; 500,000,000 shares authorized at September 30, 2020 and 80,000,000 shares authorized at December 31, 2019; 35,963,447 shares issued and outstanding at September 30, 2020 and 2,236,672 shares issued and outstanding at December 31, 2019	5	1
Additional paid-in capital	422,063	3,812
Accumulated other comprehensive income	875	0
Accumulated deficit	(95,598)	(50,970)
Total stockholders' equity (deficit)	327,345	(47,157)
Total liabilities, convertible preferred stock and stockholders' equity (deficit)	$ 346,435	$ 158,295