| Leases |
Leases The components of lease expense and supplemental cash flow information are as follows (in thousands): | | | | | | | | | | | | | | | | | | | | | | | | | Three months ended June 30, | | Six months ended June 30, | | 2026 | | 2025 | | 2026 | | 2025 | | Operating lease expense | $ | 298 | | | $ | 413 | | | $ | 599 | | | $ | 904 | | | Finance lease expense: | | | | | | | | | Amortization of assets | 39 | | | 29 | | | 79 | | | 29 | | | Interest on lease liabilities | 7 | | | 8 | | | 16 | | | 8 | | | Total finance lease expense | 46 | | | 37 | | | 95 | | | 37 | | | Short-term lease expense | 521 | | | 392 | | | 1,094 | | | 877 | | | | | | | | | | | | | | | | | | | | | | | | | | | Total lease expense | $ | 865 | | | $ | 842 | | | $ | 1,788 | | | $ | 1,818 | | | | | | | | | | | Cash paid for amounts included in the measurement of lease liabilities: | | | | | | | | | Operating cash flows from operating leases | $ | 740 | | | $ | 1,094 | | | $ | 1,426 | | | $ | 2,175 | | | Operating cash flows from finance leases | 45 | | | 40 | | | 72 | | | 40 | | | Financing cash flows from finance leases | 38 | | | 25 | | | 75 | | | 25 | |
Maturities of lease liabilities as of June 30, 2026 are as follows (in thousands): | | | | | | | | | | | | | | | | Years ending December 31, | | Operating Leases | | Finance Leases | | 2026 (excluding first six months) | | $ | 922 | | | $ | 90 | | | 2027 | | 1,865 | | | 180 | | | 2028 | | 1,731 | | | 57 | | | 2029 | | 1,644 | | | — | | | 2030 | | 1,249 | | | — | | | Thereafter | | 54 | | | — | | | Total lease payments | | $ | 7,465 | | | $ | 327 | | | Less: Interest | | (1,292) | | | (25) | | | Present value of lease liabilities | | $ | 6,173 | | | $ | 302 | |
Supplemental balance sheet information related to leases is as follows (in thousands): | | | | | | | | | | | | | | | June 30, 2026 | | December 31, 2025 | | | | Operating Leases | | | | | | | Operating lease right-of-use assets | $ | 2,419 | | | $ | 2,718 | | | | | | | | | | | Current portion of operating lease liabilities | 1,324 | | | 1,251 | | | | | Long-term operating lease liabilities | 4,849 | | | 5,608 | | | | | Total operating lease liabilities | $ | 6,173 | | | $ | 6,859 | | | | | | | | | | | Finance Leases | | | | | | | Finance lease right-of-use assets | $ | 286 | | | $ | 365 | | | | | | | | | | | | | | | | | | | | | | | Current portion of finance lease liabilities | $ | 160 | | | $ | 153 | | | | | Long-term finance lease liabilities | 142 | | | 224 | | | | | Total finance lease liabilities | $ | 302 | | | $ | 377 | | | | | | | | | | | Weighted Average Remaining Lease Term | | | | | | | Operating leases | 4.2 years | | 4.6 years | | | | Finance leases | 1.9 years | | 2.4 years | | | | | | | | | | Weighted Average Discount Rate | | | | | | | Operating leases | 9.4 | % | | 9.4 | % | | | | Finance leases | 9.5 | % | | 9.5 | % | | |
Lease Agreement Income The Company recorded income from the Lease Agreement (see Note 16, “Related Party Transactions”) of $6.8 million and $3.2 million during the three months ended June 30, 2026 and 2025, respectively. For the six months ended June 30, 2026 and 2025, the Company recorded income from the Lease Agreement of $13.7 million and $3.2 million, respectively. At June 30, 2026, the minimum future lease income related to the Lease Agreement is as follows (in thousands): | | | | | | | | Years ending December 31, | | Lease Agreement Income | 2026 (excluding first six months) | | $ | 13,688 | | | 2027 | | 27,375 | | | 2028 | | 27,375 | | | 2029 | | 27,375 | | 2030 (1) | | 9,125 | | Total rental income (through April 2030) | | $ | 104,938 | |
(1)Excludes rental income for the sixth year of the Lease Agreement as rental rates in year six will be determined based on prevailing market rates. Sublease Income On April 1, 2023, the Company entered into an agreement to sublease its office and lab space in Houston, Texas beginning September 1, 2023 and continuing through October 30, 2030. For the three months ended June 30, 2026 and 2025, the Company recorded rental income from the sublease of $0.2 million and $0.2 million, respectively, which is included in the Company’s statement of operations in Other income (expense), net. The Company recorded rental income from the sublease of $0.4 million and $0.4 million for the six months ended June 30, 2026 and 2025, respectively. Rental income from the sublease offsets the monthly rental expense from the Company’s lease of the facility. Sublease rental income for future years is as follows (in thousands): | | | | | | | | Years ending December 31, | | Sublease Income | 2026 (excluding first six months) | | $ | 383 | | | 2027 | | 767 | | | 2028 | | 767 | | | 2029 | | 767 | | | 2030 | | 639 | | | Total rental income | | $ | 3,323 | |
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| Leases |
Leases The components of lease expense and supplemental cash flow information are as follows (in thousands): | | | | | | | | | | | | | | | | | | | | | | | | | Three months ended June 30, | | Six months ended June 30, | | 2026 | | 2025 | | 2026 | | 2025 | | Operating lease expense | $ | 298 | | | $ | 413 | | | $ | 599 | | | $ | 904 | | | Finance lease expense: | | | | | | | | | Amortization of assets | 39 | | | 29 | | | 79 | | | 29 | | | Interest on lease liabilities | 7 | | | 8 | | | 16 | | | 8 | | | Total finance lease expense | 46 | | | 37 | | | 95 | | | 37 | | | Short-term lease expense | 521 | | | 392 | | | 1,094 | | | 877 | | | | | | | | | | | | | | | | | | | | | | | | | | | Total lease expense | $ | 865 | | | $ | 842 | | | $ | 1,788 | | | $ | 1,818 | | | | | | | | | | | Cash paid for amounts included in the measurement of lease liabilities: | | | | | | | | | Operating cash flows from operating leases | $ | 740 | | | $ | 1,094 | | | $ | 1,426 | | | $ | 2,175 | | | Operating cash flows from finance leases | 45 | | | 40 | | | 72 | | | 40 | | | Financing cash flows from finance leases | 38 | | | 25 | | | 75 | | | 25 | |
Maturities of lease liabilities as of June 30, 2026 are as follows (in thousands): | | | | | | | | | | | | | | | | Years ending December 31, | | Operating Leases | | Finance Leases | | 2026 (excluding first six months) | | $ | 922 | | | $ | 90 | | | 2027 | | 1,865 | | | 180 | | | 2028 | | 1,731 | | | 57 | | | 2029 | | 1,644 | | | — | | | 2030 | | 1,249 | | | — | | | Thereafter | | 54 | | | — | | | Total lease payments | | $ | 7,465 | | | $ | 327 | | | Less: Interest | | (1,292) | | | (25) | | | Present value of lease liabilities | | $ | 6,173 | | | $ | 302 | |
Supplemental balance sheet information related to leases is as follows (in thousands): | | | | | | | | | | | | | | | June 30, 2026 | | December 31, 2025 | | | | Operating Leases | | | | | | | Operating lease right-of-use assets | $ | 2,419 | | | $ | 2,718 | | | | | | | | | | | Current portion of operating lease liabilities | 1,324 | | | 1,251 | | | | | Long-term operating lease liabilities | 4,849 | | | 5,608 | | | | | Total operating lease liabilities | $ | 6,173 | | | $ | 6,859 | | | | | | | | | | | Finance Leases | | | | | | | Finance lease right-of-use assets | $ | 286 | | | $ | 365 | | | | | | | | | | | | | | | | | | | | | | | Current portion of finance lease liabilities | $ | 160 | | | $ | 153 | | | | | Long-term finance lease liabilities | 142 | | | 224 | | | | | Total finance lease liabilities | $ | 302 | | | $ | 377 | | | | | | | | | | | Weighted Average Remaining Lease Term | | | | | | | Operating leases | 4.2 years | | 4.6 years | | | | Finance leases | 1.9 years | | 2.4 years | | | | | | | | | | Weighted Average Discount Rate | | | | | | | Operating leases | 9.4 | % | | 9.4 | % | | | | Finance leases | 9.5 | % | | 9.5 | % | | |
Lease Agreement Income The Company recorded income from the Lease Agreement (see Note 16, “Related Party Transactions”) of $6.8 million and $3.2 million during the three months ended June 30, 2026 and 2025, respectively. For the six months ended June 30, 2026 and 2025, the Company recorded income from the Lease Agreement of $13.7 million and $3.2 million, respectively. At June 30, 2026, the minimum future lease income related to the Lease Agreement is as follows (in thousands): | | | | | | | | Years ending December 31, | | Lease Agreement Income | 2026 (excluding first six months) | | $ | 13,688 | | | 2027 | | 27,375 | | | 2028 | | 27,375 | | | 2029 | | 27,375 | | 2030 (1) | | 9,125 | | Total rental income (through April 2030) | | $ | 104,938 | |
(1)Excludes rental income for the sixth year of the Lease Agreement as rental rates in year six will be determined based on prevailing market rates. Sublease Income On April 1, 2023, the Company entered into an agreement to sublease its office and lab space in Houston, Texas beginning September 1, 2023 and continuing through October 30, 2030. For the three months ended June 30, 2026 and 2025, the Company recorded rental income from the sublease of $0.2 million and $0.2 million, respectively, which is included in the Company’s statement of operations in Other income (expense), net. The Company recorded rental income from the sublease of $0.4 million and $0.4 million for the six months ended June 30, 2026 and 2025, respectively. Rental income from the sublease offsets the monthly rental expense from the Company’s lease of the facility. Sublease rental income for future years is as follows (in thousands): | | | | | | | | Years ending December 31, | | Sublease Income | 2026 (excluding first six months) | | $ | 383 | | | 2027 | | 767 | | | 2028 | | 767 | | | 2029 | | 767 | | | 2030 | | 639 | | | Total rental income | | $ | 3,323 | |
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