Condensed Consolidated Balance Sheets (Unaudited) - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
Current assets:
Cash and cash equivalents	$ 118,495	$ 115,438
Marketable securities	231,881	262,887
Accounts receivable	2,444	1,091
Prepaid expenses and other current assets	5,824	6,176
Total current assets	358,644	385,592
Marketable securities	7,002	6,989
Property and equipment, net	16,974	16,908
Restricted cash	2,074	2,074
Operating lease right-of-use assets	47,345	48,970
Investment in equity securities	41,200	41,200
Equity method investment	2,653	4,071
Intangible assets, net	23,854	24,287
In-process research & development	36,550	36,550
Goodwill	117	117
Other assets	7,462	7,326
Total assets	543,875	574,084
Current liabilities:
Accounts payable	9,774	9,751
Accrued and other current liabilities	33,605	33,636
Operating lease liabilities	5,085	4,948
Contingent value rights liability	2,500	2,500
Total current liabilities	50,964	50,835
Contingent value rights liability - non-current	37,794	37,318
Contingent consideration liability	4,470	4,420
Deferred tax liabilities	5,076	5,076
Operating lease liabilities, net of current maturities	33,178	34,494
Total liabilities	131,482	132,143
Commitments and contingencies (Note 12)
Stockholders’ equity:
Preferred stock, $0.0001 par value; 10,000 shares authorized as of March 31, 2023 and December 31, 2022; no shares issued and outstanding at March 31, 2023 and December 31, 2022
Common stock, $0.0001 par value; 300,000 shares authorized as of March 31, 2023 and December 31, 2022; 66,822 and 165,471 shares issued and outstanding at March 31, 2023 and December 31, 2022	7	7
Additional paid-in capital	893,905	864,729
Accumulated deficit	(479,808)	(419,631)
Accumulated other comprehensive loss	(1,711)	(3,164)
Total stockholders’ equity	412,393	441,941
Total liabilities and stockholders’ equity	$ 543,875	$ 574,084