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CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY - USD ($) $ in Thousands | Total | Common stock [Member] Common Class A [Member] | Common stock [Member] Common Class B [Member] | Additional paid-in capital [Member] | Accumulated Other Comprehensive Income (Loss) [Member] | Accumulated deficit [Member]
--- | --- | --- | --- | --- | --- | ---
Beginning Balance , Shares at Dec. 31, 2022 |  | 51,233,701 | 5,435,254 |  |  |
Beginning Balance at Dec. 31, 2022 | $ 462,978 | $ 5 | $ 1 | $ 623,543 | $ (494) | $ (160,077)
Issuance of common stock upon public offering, net, Shares |  | 6,160,714 |  |  |  |
Issuance of common stock upon public offering, net | 323,534 | $ 1 |  | 323,533 |  |
Issuance of common stock upon exercise of stock options, Shares |  | 1,222,294 |  |  |  |
Issuance of common stock upon exercise of stock options | 13,793 |  |  | 13,793 |  |
Issuance of common stock under employee stock purchase plan, Shares |  | 13,187 |  |  |  |
Issuance of common stock under employee stock purchase plan | 387 |  |  | 387 |  |
Unrealized gains (losses) on marketable securities | 525 |  |  |  | 525 |
Stock-based compensation expense | 25,563 |  |  | 25,563 |  |
Net loss | (126,219) |  |  |  |  | (126,219)
Ending Balance , Shares at Dec. 31, 2023 |  | 58,629,896 | 5,435,254 |  |  |
Ending Balance at Dec. 31, 2023 | 700,561 | $ 6 | $ 1 | 986,819 | 31 | (286,296)
Issuance of common stock upon public offering, net, Shares |  | 5,750,000 |  |  |  |
Issuance of common stock upon public offering, net | 540,012 | $ 1 |  | 540,011 |  |
Issuance of common stock upon exercise of stock options, Shares |  | 1,518,096 |  |  |  |
Issuance of common stock upon exercise of stock options | 28,834 |  |  | 28,834 |  |
Issuance of common stock under employee stock purchase plan, Shares |  | 11,572 |  |  |  |
Issuance of common stock under employee stock purchase plan | 652 |  |  | 652 |  |
Unrealized gains (losses) on marketable securities | (90) |  |  |  | (90) |
Stock-based compensation expense | 60,579 |  |  | 60,579 |  |
Net loss | (260,756) |  |  |  |  | (260,756)
Ending Balance , Shares at Dec. 31, 2024 |  | 65,909,564 | 5,435,254 |  |  |
Ending Balance at Dec. 31, 2024 | 1,069,792 | $ 7 | $ 1 | 1,616,895 | (59) | (547,052)
Issuance of common stock upon public offering, net, Shares |  | 4,950,496 |  |  |  |
Issuance of common stock upon public offering, net | $ 471,787 |  |  | 471,787 |  |
Issuance of common stock upon exercise of stock options, Shares | 1,672,786 |  |  |  |  |
Issuance of common stock upon exercise of stock options and restricted stock unit vesting, Shares |  | 1,925,600 |  |  |  |
Issuance of common stock upon exercise of stock options and restricted stock unit vesting | $ 42,037 |  |  | 42,037 |  |
Issuance of common stock under employee stock purchase plan, Shares |  | 18,451 |  |  |  |
Issuance of common stock under employee stock purchase plan | 1,186 |  |  | 1,186 |  |
Unrealized gains (losses) on marketable securities | 2,412 |  |  |  | 2,412 |
Stock-based compensation expense | 86,502 |  |  | 86,502 |  |
Net loss | (425,377) |  |  |  |  | (425,377)
Ending Balance , Shares at Dec. 31, 2025 |  | 72,804,111 | 5,435,254 |  |  |
Ending Balance at Dec. 31, 2025 | $ 1,248,339 | $ 7 | $ 1 | $ 2,218,407 | $ 2,353 | $ (972,429)

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