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Stockholders' Equity - Schedule of Common Stock, Reserved for Future Issuance (Detail) - shares | Sep. 30, 2025 | Dec. 31, 2024
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Class of Stock [Line Items] |  |  |
Total common stock reserved | 18,584,987 |  | 18,618,535
Options Issued and Outstanding |  |  |
Class of Stock [Line Items] |  |  |
Total common stock reserved | 18,044,321 | [1] | 18,077,869
Preferred Stock Warrants Issued and Outstanding |  |  |
Class of Stock [Line Items] |  |  |
Total common stock reserved | 540,666 |  | 540,666
[1] | Include s 5,442,776 op tions exercisable for shares of common stock, which underlying shares of common stock were transferred in the name of the Company to Futu Network Technology Limited, the stock plan administrator of the 2023 Omnibus Incentive Sub-Plan for Chinese participants.

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