Condensed Consolidated Statements of Cash Flows (unaudited) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021
Cash flows from operating activities
Net loss	$ (64,277)	$ (31,575)
Adjustments to reconcile net loss to net cash used in operating activities:
Acquired in-process research and development assets	0	8,000
Share-based compensation expense	11,833	3,075
Depreciation expense	12	10
Amortization of operating right-of-use assets	174	88
Non-cash interest expense	0	14
Changes in operating assets and liabilities:
Prepaid expenses and other current assets	(2,580)	(4,722)
Deposits and other long-term assets	(315)	(19)
Accounts payable	(1,305)	145
Accrued expenses and other current liabilities	5,224	1,937
Operating lease liabilities	(116)	(102)
Net cash used in operating activities	(51,350)	(23,149)
Cash flows from investing activities
Cash paid for acquired in-process research and development assets	0	(8,000)
Cash paid for purchase of short-term investments	(5,990)	0
Cash paid for property and equipment	(22)	0
Cash used in investing activities	(6,012)	(8,000)
Cash flows from financing activities
Proceeds from issuance of Series B redeemable convertible preferred shares, net of issuance costs	0	129,757
Proceeds from issuance of common stock, net	161,610	167,660
Proceeds from issuance of common stock upon ESPP purchase	320	0
Net cash provided by financing activities	161,930	297,417
Net increase in cash and cash equivalents	104,568	266,268
Cash and cash equivalents, beginning of period	284,309	43,728
Cash and cash equivalents, end of period	388,877	309,996
Supplemental disclosures of noncash activities
Lease liability obtained in exchange for right-of-use asset	940	0
Deferred offering costs not yet paid	519	615
Exchange of 45,331,483 preferred, common, and incentive shares in connection with the Conversion (Note 1)	0	224,892
Exchange of redeemable convertible noncontrolling interest to 6,470,382 shares of common stock (Note 11)	$ 0	$ 3,592