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Consolidated Statements of Redeemable Convertible Preferred Stock and Stockholders' Equity (Deficit) - USD ($) $ in Thousands | Total | Common Stock | Treasury Stock | Additional Paid-in Capital | Accumulated Deficit
--- | --- | --- | --- | --- | ---
Redeemable Convertible Preferred Stock, beginning balance (in shares) at Jan. 31, 2023 | 69,914,359 |  |  |  |
Redeemable Convertible Preferred Stock, beginning balance at Jan. 31, 2023 | $ 227,198 |  |  |  |
Redeemable Convertible Preferred Stock, ending balance (in shares) at Jan. 31, 2024 | 69,914,359 |  |  |  |
Redeemable Convertible Preferred Stock, ending balance at Jan. 31, 2024 | $ 227,198 |  |  |  |
Beginning balance at Jan. 31, 2023 | (272,551) | $ 4 | $ 0 | $ 98,793 | $ (371,348)
Beginning balance (in shares) at Jan. 31, 2023 |  | 36,897,306 |  |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |
Net income (loss) | 76,966 |  |  |  | 76,966
Issuance of common stock upon exercise of vested stock options (in shares) |  | 2,041,617 |  |  |
Issuance of common stock upon exercise of vested stock options | 1,079 |  |  | 1,079 |
Issuance of common stock upon settlement of RSUs, net of tax withholdings (in shares) |  | 21,632 |  |  |
Change in early exercise liability | 396 |  |  | 396 |
Share-based compensation expense | 13,255 |  |  | 13,255 |
Ending balance (in shares) at Jan. 31, 2024 |  | 38,960,555 |  |  |
Ending balance at Jan. 31, 2024 | $ (180,855) | $ 4 | 0 | 113,523 | (294,382)
Redeemable Convertible Preferred Stock, ending balance (in shares) at Jan. 31, 2025 | 69,914,359 |  |  |  |
Redeemable Convertible Preferred Stock, ending balance at Jan. 31, 2025 | $ 227,198 |  |  |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |
Net income (loss) | 194,447 |  |  |  | 194,447
Issuance of common stock upon exercise of vested stock options (in shares) |  | 2,568,044 |  |  |
Issuance of common stock upon exercise of vested stock options | 4,919 |  |  | 4,919 |
Issuance of common stock upon settlement of RSUs, net of tax withholdings (in shares) |  | 4,000 |  |  |
Repurchase of common stock (in shares) |  | (3,352,224) |  |  |
Repurchase of common stock | $ (37,037) |  | (35,287) | (1,750) |
Repurchase of common stock (in shares) | (85,034) |  |  |  |
Reissuance of treasury stock (in shares) |  | 1,929,731 |  |  |
Reissuance of treasury stock | $ 22,694 |  | 22,694 |  |
Change in early exercise liability | 169 |  |  | 169 |
Share-based compensation expense | $ 11,001 |  |  | 11,001 |
Ending balance (in shares) at Jan. 31, 2025 | 40,110,106 | 40,110,106 |  |  |
Ending balance at Jan. 31, 2025 | $ 15,338 | $ 4 | (12,593) | 127,862 | (99,935)
Increase (Decrease) in Temporary Equity [Roll Forward] |  |  |  |  |
Issuance of common stock upon conversion of redeemable convertible preferred stock and SAFEs (in shares) | (69,914,359) |  |  |  |
Issuance of common stock upon conversion of redeemable convertible preferred stock and SAFEs | $ (227,198) |  |  |  |
Redeemable Convertible Preferred Stock, ending balance (in shares) at Jan. 31, 2026 | 0 |  |  |  |
Redeemable Convertible Preferred Stock, ending balance at Jan. 31, 2026 | $ 0 |  |  |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |
Net income (loss) | $ (42,066) |  |  |  | (42,066)
Issuance of common stock upon exercise of vested stock options (in shares) | 6,649,247 | 6,649,247 |  |  |
Issuance of common stock upon exercise of vested stock options | $ 12,439 |  |  | 12,439 |
Issuance of common stock upon settlement of RSUs, net of tax withholdings (in shares) |  | 11,780,753 |  |  |
Issuance of common stock upon settlement of RSUs, net of tax withholdings | (136,855) |  |  | (136,855) |
Issuance of common stock upon IPO (in shares) |  | 21,468,038 |  |  |
Issuance of common stock upon IPO | 282,070 |  |  | 282,070 |
IPO offering costs | (9,162) |  |  | (9,162) |
Repurchase of common stock (in shares) |  | (54,455) |  |  |
Repurchase of common stock | (459) |  | (459) |  |
Issuance of common stock upon conversion of redeemable convertible preferred stock and SAFEs (in shares) |  | 70,351,774 |  |  |
Issuance of common stock upon conversion of redeemable convertible preferred stock and SAFEs | 233,407 | $ 8 |  | 233,399 |
Employee Stock Purchase Plan compensation expense | 153 |  |  | 153 |
Share-based compensation expense | $ 259,824 |  |  | 259,824 |
Ending balance (in shares) at Jan. 31, 2026 | 150,305,463 | 150,305,463 |  |  |
Ending balance at Jan. 31, 2026 | $ 614,689 | $ 12 | $ (13,052) | $ 769,730 | $ (142,001)

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