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Leases | 3 Months Ended
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Mar. 31, 2026
Leases [Abstract] |
Leases | Leases Operating Leases The Company has an operating lease for office and laboratory space in Boston, Massachusetts (the “Boston Lease”). The Boston Lease commenced in February 2022 with the term set to expire in February 2030. The Boston Lease has rent payments escalating annually, which total $11.1 million in the aggregate. As a result, at the commencement of the Boston Lease the Company recognized a right-of-use (“ROU”) lease asset of $8.0 million with a corresponding lease liability of $8.0 million based on the present value of the minimum rental payments. In addition, the Company will make payments for operating expenses and real estate taxes. In June 2023, the Company secured a letter of credit for the $0.7 million deposit on the Boston Lease, which was reported as restricted cash, noncurrent on the condensed consolidated balance sheets as of March 31, 2026 and December 31, 2025. Lease expense for the three months ended March 31, 2026 and 2025 was $0.3 million and $0.3 million, respectively. The following table summarizes quantitative information about the Company's operating leases (dollars in thousands):
| Three Months Ended March 31,
| 2026 |  | 2025
Operating cash outflows from operating leases | $ | 341 |  |  | $ | 334 |
Weighted-average remaining lease term—operating leases (in years) | 3.8 |  | 4.8
Weighted-average discount rate—operating leases | 8.0 | % |  | 8.0 | %
As of March 31, 2026, maturities of lease liabilities were as follows (in thousands):
Year Ended December 31, |  | Amounts
2026 (remaining nine months) |  | $ | 1,042 |
2027 |  | 1,425 |
2028 |  | 1,467 |
2029 |  | 1,512 |
2030 |  | 253 |
Total |  | 5,699 |
Less present value discount |  | (834) |
Operating lease liabilities |  | 4,865 |
Less: operating lease liability, current portion |  | (1,042) |
Operating lease liability, noncurrent portion |  | $ | 3,823 |

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- Definition The entire disclosure for operating leases of lessee. Includes, but is not limited to, description of operating lease and maturity analysis of operating lease liability. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 842 -SubTopic 20 -Name Accounting Standards Codification -Publisher FASB -URI https://asc.fasb.org/842-20/tableOfContent + Details
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