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Income Taxes (Tables) | 12 Months Ended
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Dec. 31, 2025
Income Tax Disclosure [Abstract] |
Schedule of Income Before Income Taxes | For financial reporting purposes, income before income taxes includes the following components (in thousands):
|  | Year ended December 31, |
|  | 2025 |  |  | 2024 |  |  | 2023 |
Domestic |  | $ | (146,000 | ) |  | $ | (152,496 | ) |  | $ | (149,540 | )
Foreign |  |  | 880 |  |  |  | 406 |  |  |  | 207 |
Loss before income taxes |  | $ | (145,120 | ) |  | $ | (152,090 | ) |  | $ | (149,333 | )
Schedule of Components of Tax Expense | The components of income tax expense are as follows (in thousands):
|  | Year ended December 31, |
|  | 2025 |  |  | 2024 |
Current: |  |  |  |  |  |
Federal |  | $ | — |  |  | $ | — |
State |  |  | — |  |  |  | — |
Foreign |  |  | 308 |  |  |  | 171 |
Total Current |  |  | 308 |  |  |  | — |
Deferred: |  |  |  |  |  |
Federal |  |  | — |  |  |  | — |
State |  |  | — |  |  |  | — |
Foreign |  |  | — |  |  |  | — |
Total Deferred |  | $ | — |  |  | $ | — |
Summary of Reconciliation Federal Income Tax Rate | Reconciliation between the effective tax rate on income from continuing operations and the statutory tax rate of 21% is as follows:
|  | Year Ended December 31, 2025 |
Income taxes at the U.S. federal statutory tax rate |  |  | (30,485 | ) |  |  | 21.0 | %
Foreign tax effects |  |  |  |  |  |
Other foreign tax effects |  |  | (34 | ) |  |  | 0.0 | %
Effect of cross-border tax laws |  |  |  |  |  |
Tax credits |  |  |  |  |  |
Research & Developments Credit |  |  | (4,483 | ) |  |  | 3.1 | %
Changes in valuation allowances |  |  | 32,390 |  |  |  | (22.3 | )%
Nontaxable or nondeductible items |  |  |  |  |  |
Stock Based Comp |  |  | (3,410 | ) |  |  | 2.4 | %
Sec. 162(m) |  |  | 1,966 |  |  |  | (1.4 | )%
Change in FMV of Warrants |  |  | 4,159 |  |  |  | (2.9 | )%
Other |  |  | 205 |  |  |  | (0.1 | )%
Total |  |  | 308 |  |  |  | (0.2 | )%
|  | Year Ended December 31, |
|  | 2024 |  |  | 2023 |
U.S. federal provision at statutory rate |  |  | 21.0 | % |  |  | 21.0 | %
Tax credits |  |  | 2.6 | % |  |  | 3.0 | %
Stock-based compensation |  |  | (2.2 | )% |  |  | (2.7 | )%
Section 162(m) |  |  | (0.7 | )% |  |  | (0.1 | )%
Change in valuation allowance |  |  | (20.2 | )% |  |  | (19.6 | )%
Other |  |  | (0.5 | )% |  |  | (1.6 | )%
Effective tax rate |  |  | 0.0 | % |  |  | 0.0 | %
Schedule of Net Deferred Tax Assets and Liabilities | The Company’s deferred income tax assets and liabilities as of December 31, 2025 and 2024 were as follows (in thousands):
|  | Year ended December 31, |
|  | 2025 |  |  | 2024 |
Deferred tax assets: |  |  |  |  |  |
Net operating loss carry forward |  | $ | 152,117 |  |  | $ | 79,991 |
Tax credits |  |  | 31,567 |  |  |  | 24,293 |
Intangibles |  |  | 3,614 |  |  |  | 3,535 |
Other |  |  | — |  |  |  | (1 | )
Stock-based compensation |  |  | 1,501 |  |  |  | 1,880 |
Lease liability |  |  | 1,381 |  |  |  | 827 |
Research and development costs |  |  | 10,168 |  |  |  | 47,018 |
Fixed assets |  |  | 193 |  |  |  | 37 |
Accruals and reserves |  |  | 1,454 |  |  |  | 1,384 |
Total deferred tax assets before valuation allowance |  |  | 201,995 |  |  |  | 158,964 |
Valuation allowance |  |  | (200,666 | ) |  |  | (158,121 | )
Total deferred tax assets |  |  | 1,329 |  |  |  | 843 |
Deferred tax liabilities: |  |  |  |  |  |
Right of use assets |  |  | (1,328 | ) |  |  | (843 | )
Other |  |  | (1 | ) |  |  | — |
Total deferred tax liabilities |  |  | (1,329 | ) |  |  | (843 | )
Net deferred tax assets (liabilities) |  | $ | — |  |  | $ | — |
Schedule of Unrecognized Tax Benefits | The following is a tabular reconciliation of the total amounts of unrecognized tax benefits (in thousands):
|  | Year ended December 31, |
|  | 2025 |  |  | 2024 |  |  | 2023 |
Unrecognized tax benefits as of the beginning of the year |  | $ | 18,317 |  |  | $ | 13,809 |  |  | $ | 8,872 |
Increase related to prior year tax provisions |  |  | — |  |  |  | 111 |  |  |  | — |
Decrease related to prior year tax provisions |  |  | — |  |  |  | — |  |  |  | — |
Increase related to current year tax provisions |  |  | 5,345 |  |  |  | 4,397 |  |  |  | 4,937 |
Statue lapse |  |  | — |  |  |  | — |  |  |  | — |
Unrecognized tax benefits as of the end of the year |  | $ | 23,662 |  |  | $ | 18,317 |  |  | $ | 13,809 |

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