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Condensed Statement of Stockholders' Equity (Unaudited) - USD ($) $ in Thousands | Total | Common Stock | Additional Paid-in Capital | Accumulated Other Comprehensive Loss | Accumulated Deficit | Preferred Stock [Member] Convertible Preferred Stock [Member]
--- | --- | --- | --- | --- | --- | ---
Beginning Balance at Dec. 31, 2023 | $ 122,886 | $ 3 | $ 1,084,562 | $ 68 | $ (961,747) | $ 0
Beginning Balance (shares) at Dec. 31, 2023 |  | 3,354 |  |  |  | 0
Issuance of common stock through employee stock purchase plan | 2,080 | $ 1 | 2,079 |  |  |
Issuance of common stock through employee stock purchase plan (shares) |  | 52 |  |  |  |
Issuance of common stock for settlement of RSUs | 295 |  | 295 |  |  |
Issuance of common stock for settlement of RSUs (shares) |  | 40 |  |  |  |
Stock option exercises | 6 |  | 6 |  |  |
Stock-based compensation expense | 8,203 |  | 8,203 |  |  |
Unrealized loss on available-for-sale securities | (326) |  |  | (326) |  |
Net Income (Loss) | (39,944) |  |  |  | (39,944) |
Ending Balance at Mar. 31, 2024 | 93,200 | $ 4 | 1,095,145 | (258) | (1,001,691) | $ 0
Ending Balance (shares) at Mar. 31, 2024 |  | 3,446 |  |  |  | 0
Beginning Balance at Dec. 31, 2024 | 26,819 | $ 4 | 1,116,496 | 42 | (1,089,723) | $ 0
Beginning Balance (shares) at Dec. 31, 2024 |  | 3,530 |  |  |  | 0
Conversion of convertible preferred stock to common stock (Shares) |  | 14,046,000 |  |  |  | (842)
Conversion of convertible preferred stock to common stock |  | $ 14 | 157,216 |  |  | $ (157,230)
Issuance of common stock through employee stock purchase plan | 408 |  | 408 |  |  |
Issuance of common stock through employee stock purchase plan (shares) |  | 60 |  |  |  |
Issuance of common stock warrant, net of issuance costs | 4,330 |  | 4,330 |  |  |
Issuance of Series A convertible preferred stock, net of issuance costs (Shares) |  |  |  |  |  | 863
Issuance of Series A convertible preferred stock net of issuance costs | 161,071 |  |  |  |  | $ 161,071
Issuance of common stock for settlement of RSUs |  | $ 86 |  |  |  |
Stock-based compensation expense | 2,977 |  | 2,977 |  |  |
Unrealized loss on available-for-sale securities | 46 |  |  | 46 |  |
Net Income (Loss) | (25,783) |  |  |  | (25,783) |
Ending Balance at Mar. 31, 2025 | $ 169,868 | $ 18 | $ 1,281,427 | $ 88 | $ (1,115,506) | $ 3,841
Ending Balance (shares) at Mar. 31, 2025 |  | 17,722 |  |  |  | 21

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