Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Current assets:
Cash and cash equivalents	$ 32,672	$ 200,695
Investment securities	301,753	133,012
Prepaid expenses and other current assets	10,759	11,013
Total current assets	345,184	344,720
Property and equipment, net	3,500	2,825
Operating lease right-of-use asset	1,486	1,892
Derivative asset	668	68
Investment in Radionetics	0	1,010
Restricted cash	1,301	500
Other assets	37	0
Total assets	352,176	351,015
Current liabilities:
Accounts payable and accrued expenses	15,351	8,468
Accrued compensation and related expenses	9,081	6,588
Deferred revenue	2,240	0
Other current liabilities	1,051	939
Total current liabilities	27,723	15,995
Operating lease liability, non-current	2,024	3,074
Deferred revenue, non-current	6,101	0
Unvested stock liability	0	2
Total liabilities	35,848	19,071
Commitments and contingencies (Note 7)
Stockholders’ equity:
Preferred stock, $0.001 par; 10,000 shares authorized, no shares issued or outstanding at December 31, 2022 or 2021	0	0
Common stock and paid-in capital, $0.001 par; 200,000 shares authorized, 53,877 shares issued and outstanding at December 31, 2022; 47,598 and 47,597 shares issued and outstanding at December 31, 2021	759,432	607,581
Accumulated other comprehensive (loss) income	(3,931)	(382)
Accumulated deficit	(439,173)	(275,255)
Total stockholders’ equity	316,328	331,944
Total liabilities and stockholders’ equity	$ 352,176	$ 351,015