Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
Current assets:
Cash and cash equivalents	$ 193,629	$ 71,032
Marketable securities	146,301	195,238
Prepaid expenses	8,635	13,652
Receivables and other current assets	41,252	20,960
Total current assets	389,817	300,882
Property, plant and equipment, net	59,153	55,735
Marketable securities	1,432	1,414
Intangible assets, net	7,125	7,302
Goodwill	12,056	12,056
Operating lease right-of-use assets	235,264	240,885
Restricted investments and other non-current assets	37,590	38,391
Total assets	742,437	656,665
Current liabilities:
Accounts payable	13,399	7,208
Accrued expenses and other current liabilities	43,568	54,678
Operating lease liability, current portion	11,482	11,164
Deferred revenue, current portion	8,480	3,000
Collaboration research advancement	0	3,744
Total current liabilities	76,929	79,794
Deferred revenue, net of current portion	6,311	5,000
Operating lease liability, net of current portion	255,472	259,008
Other non-current liabilities	2,401	2,397
Total liabilities	341,113	346,199
Commitments and contingencies (Note 8)
Stockholders’ equity:
Preferred stock, $0.0001 par value; 10,000 shares authorized, 0 shares issued and outstanding at March 31, 2023 and December 31, 2022	0	0
Common stock, $0.0001 par value; 200,000 shares authorized, 50,190 and 37,928 shares issued and outstanding at March 31, 2023 and December 31, 2022, respectively	5	4
Additional paid-in capital	743,937	606,986
Accumulated other comprehensive loss	(1,950)	(2,877)
Accumulated deficit	(340,668)	(293,647)
Total stockholders’ equity	401,324	310,466
Total liabilities and stockholders’ equity	$ 742,437	$ 656,665