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Related Party Transactions
 6 Months Ended
Jun. 30, 2025
Related Party Transactions [Abstract]  
Related Party Transactions

10. Related Party Transactions

Janssen

Janssen Pharmaceutical NV (“Janssen”) is a related party to a founding investor in the Company, Johnson & Johnson Innovation—JJDC, Inc., as both entities are direct subsidiaries of Johnson & Johnson, Inc. For the six months ended June 30, 2025 and 2024, the Company incurred costs of zero and $69 thousand, respectively, which was recognized as research and development expense in the condensed consolidated statement of operations and comprehensive loss, to Janssen for the use of lab space in California. As of June 30, 2025 and December 31, 2024, there were no related party transactions in accounts payable or accrued expenses.

Third Rock Ventures

Third Rock Ventures LLC (“Third Rock”) is a founding investor in the Company. For the six months ended June 30, 2025 and 2024, the Company incurred costs of zero and $0.1 million, respectively, which was recognized as general and administrative expense in the condensed consolidated statement of operations and comprehensive loss to Third Rock primarily for management consulting and other various start-up support activities. As of both June 30, 2025 and December 31, 2024, there were no accounts payable and accrued expenses related to Third Rock.