CONDENSED CONSOLIDATED BALANCE SHEETS (UNAUDITED) - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021
Current assets:
Cash and cash equivalents	$ 213,930	$ 241,435
Marketable securities	162,177	168,990
Accounts receivable	3,896	1,697
Accounts receivable (related party)		4,609
Prepaid expenses and other current assets	18,822	7,448
Total current assets	398,825	424,179
Marketable securities	20,694	20,297
Property and equipment, net	6,179	3,549
Operating lease right-of-use assets	13,589	3,733
Intangible assets, net	2,076	2,347
Deferred tax assets	241	417
Other assets	3,189	2,078
Total assets	444,793	456,600
Current liabilities:
Accounts payable	6,961	13,237
Accrued expenses and other liabilities	21,257	22,506
Current portion of lease obligation	1,331	1,494
Current portion of deferred revenue	30,714	16,613
Current portion of deferred revenue (related party)		18,048
Total current liabilities	60,263	71,898
Lease obligation	12,291	2,257
Deferred revenue, net of current portion	45,630	10,962
Deferred revenue, net of current portion (related party)		55,282
Total liabilities	118,184	140,399
Commitments and contingencies - Note 6
Stockholders’ equity:
Common shares, Euro 0.09 par value; 67,500,000 shares authorized as at June 30, 2022 and December 31, 2021; 45,866,820 and 43,467,052 shares issued and outstanding as at June 30, 2022 and December 31, 2021, respectively	4,711	4,481
Additional paid-in capital	848,623	787,869
Accumulated other comprehensive income	(35,190)	(9,221)
Accumulated deficit	(491,535)	(466,928)
Total stockholders’ equity	326,609	316,201
Total liabilities and stockholders’ equity	$ 444,793	$ 456,600