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Stock-based compensation (Tables) | 9 Months Ended
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Sep. 30, 2023
Share-Based Payment Arrangement [Abstract] |
Stock option activity | The following table summarizes the Company’s stock option activity during the periods presented (in thousands except share and per share data):
| Number of options outstanding | Weighted average exercise price ($) | Weighted average remaining contractual term (years) | Aggregate intrinsic value ($)
Balance as of December 31, 2022 | 15,387,546 | $ | 1.76 |  | 7.12 | $ | 8,763 |
Granted | — | — |  | — |  | — |
Exercised | (2,329,067) | 0.81 |  | — |  | 144 |
Forfeited | (1,019,743) | 3.57 |  | — |  | — |
Expired | (388,956) | 2.36 |  | — |  | — |
Balance as of September 30, 2023 | 11,649,780 | $ | 1.66 |  | 7.32 | $ | 1,618 |
Options exercisable as of September 30, 2023 | 9,809,565 | $ | 1.24 |  | 7.13 | $ | 1,438 |
Options unvested as of September 30, 2023 | 1,840,072 | $ | 3.89 |  | 8.35 | $ | 180 |
RSU activity | The following table summarizes the RSU activity and related information under the 2022 Plan:
| Number of Outstanding |  | Weighted average Grant Date Fair Value ($)
Unvested as of December 31, 2022 | 8,143,304 |  |  | $ | 5.69 |
Granted | 4,423,933 |  |  | 0.89 |
Forfeited | (1,446,883) |  |  | 4.63 |
Vested | (167,605) |  |  | 4.02 |
Unvested as of September 30, 2023 | 10,952,749 |  |  | $ | 3.93 |
Expected to vest as of September 30, 2023 | 10,436,290 |  |  | $ | 3.97 |
Stock-based compensation expense | The following table summarizes the stock-based compensation expense classified in the condensed consolidated statements of operations and comprehensive loss as follows (in thousands):
| Three months ended September 30,
| 2023 |  | 2022
Cost of revenue | $ | 353 |  |  | $ | 45 |
Research and development | 2,347 |  |  | 360 |
General and administrative | 2,913 |  |  | 644 |
Sales and marketing | 271 |  |  | 732 |
Total stock-based compensation | $ | 5,884 |  |  | $ | 1,781 |
| Nine months ended September 30,
| 2023 |  | 2022
Cost of revenue | $ | 963 |  |  | $ | 80 |
Research and development | 6,771 |  |  | 536 |
General and administrative | 8,849 |  |  | 1,948 |
Sales and marketing | 779 |  |  | 791 |
Total stock-based compensation | $ | 17,362 |  |  | $ | 3,355 |

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