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v3.25.0.1

Share-based compensation (Details) | 1 Months Ended | 12 Months Ended |  |  |  |
--- | --- | --- | --- | --- | --- | ---
Jul. 31, 2024 M shares | Jun. 30, 2020 installment shares | May 31, 2019 shares | Dec. 31, 2024 installment shares | Jan. 01, 2025 shares | Jan. 01, 2024 shares | Dec. 31, 2023 shares | Jun. 27, 2022 shares
Stock option |  |  |  |  |  |  |  |
Share-based compensation. |  |  |  |  |  |  |  |
Shares outstanding |  |  |  | 8,748,726 |  |  | 7,469,527 |
Employee Share Purchase Plan |  |  |  |  |  |  |  |
Share-based compensation. |  |  |  |  |  |  |  |
Number of shares reserved for issuance |  |  |  |  | 430,000 |  |  |
Number of ordinary shares reserved for issuance |  |  | 215,000 | 1,577,671 |  |  |  |
Percentage of annual increase in reserves on total number of ordinary shares outstanding |  |  | 1.00% |  |  |  |  |
Number of shares available for issuance |  |  | 430,000 |  |  |  |  |
2024 Inducement Plan |  |  |  |  |  |  |  |
Share-based compensation. |  |  |  |  |  |  |  |
Number of shares reserved for issuance | 1,500,000 |  |  | 1,251,400 |  |  |  |
2024 Inducement Plan | Stock option |  |  |  |  |  |  |  |
Share-based compensation. |  |  |  |  |  |  |  |
Contractual life | 10 years |  |  |  |  |  |  |
Shares outstanding |  |  |  | 248,600 |  |  |  |
2024 Inducement Plan | Stock option | First anniversary |  |  |  |  |  |  |  |
Share-based compensation. |  |  |  |  |  |  |  |
Vesting Percentage | 25.00% |  |  |  |  |  |  |
2024 Inducement Plan | Stock option | Employee |  |  |  |  |  |  |  |
Share-based compensation. |  |  |  |  |  |  |  |
Vesting period | 4 years |  |  |  |  |  |  |
2024 Inducement Plan | Stock option | Employee | Remaining equal installments |  |  |  |  |  |  |  |
Share-based compensation. |  |  |  |  |  |  |  |
Number of equal monthly installments for vesting remaining awards | M | 36 |  |  |  |  |  |  |
2020 Plan |  |  |  |  |  |  |  |
Share-based compensation. |  |  |  |  |  |  |  |
Number of shares reserved for issuance |  | 4,773,557 |  | 463,374 | 2,378,465 | 1,886,294 |  | 750,000
Percentage of annual increase in reserves on total number of ordinary shares outstanding |  | 5.00% |  |  |  |  |  |
2020 Plan | Stock option |  |  |  |  |  |  |  |
Share-based compensation. |  |  |  |  |  |  |  |
Contractual life |  | 10 years |  |  |  |  |  |
Shares outstanding |  |  |  | 6,211,123 |  |  |  |
2020 Plan | Stock option | Non-employee Director |  |  |  |  |  |  |  |
Share-based compensation. |  |  |  |  |  |  |  |
Vesting period |  | 3 years |  |  |  |  |  |
Service period |  |  |  | 1 year |  |  |  |
Number of equal quarterly installments for vesting remaining awards | installment |  |  |  | 4 |  |  |  |
2020 Plan | Stock option | First anniversary |  |  |  |  |  |  |  |
Share-based compensation. |  |  |  |  |  |  |  |
Vesting Percentage |  | 25.00% |  |  |  |  |  |
2020 Plan | Stock option | Employee |  |  |  |  |  |  |  |
Share-based compensation. |  |  |  |  |  |  |  |
Vesting period |  | 4 years |  |  |  |  |  |
2020 Plan | Stock option | Employee | Remaining equal installments |  |  |  |  |  |  |  |
Share-based compensation. |  |  |  |  |  |  |  |
Number of equal monthly installments for vesting remaining awards | installment |  | 36 |  |  |  |  |  |
2020 Plan | Stock option three year vest | Non-employee Director |  |  |  |  |  |  |  |
Share-based compensation. |  |  |  |  |  |  |  |
Service period |  |  |  | 3 years |  |  |  |
Number of equal annual installments | installment |  | 3 |  | 3 |  |  |  |
2020 Plan | Restricted ordinary shares |  |  |  |  |  |  |  |
Share-based compensation. |  |  |  |  |  |  |  |
Vesting period |  |  |  | 4 years |  |  |  |
Service period |  |  |  | 1 year |  |  |  |
Right to receive upon vesting |  |  |  | 1 |  |  |  |
RSUs outstanding |  |  |  | 716,262 |  |  |  |
2020 Plan | Restricted ordinary shares | Non-employee Director |  |  |  |  |  |  |  |
Share-based compensation. |  |  |  |  |  |  |  |
Number of quarterly installments | installment |  |  |  | 4 |  |  |  |
2020 Plan | Restricted ordinary shares | First anniversary |  |  |  |  |  |  |  |
Share-based compensation. |  |  |  |  |  |  |  |
Vesting Percentage |  |  |  | 25.00% |  |  |  |
2020 Plan | Restricted ordinary shares | Remaining equal installments |  |  |  |  |  |  |  |
Share-based compensation. |  |  |  |  |  |  |  |
Number of equal quarterly installments for vesting remaining awards | installment |  |  |  | 12 |  |  |  |
2019 Plan | Stock option |  |  |  |  |  |  |  |
Share-based compensation. |  |  |  |  |  |  |  |
Contractual life |  |  |  | 10 years |  |  |  |
Shares outstanding |  |  |  | 1,773,816 |  |  |  |
2019 Plan | Minimum | Stock option |  |  |  |  |  |  |  |
Share-based compensation. |  |  |  |  |  |  |  |
Vesting period |  |  |  | 3 years |  |  |  |
2019 Plan | Maximum | Stock option |  |  |  |  |  |  |  |
Share-based compensation. |  |  |  |  |  |  |  |
Vesting period |  |  |  | 4 years |  |  |  |
Pre-IPO Share Options and restricted shares | Stock option | First anniversary |  |  |  |  |  |  |  |
Share-based compensation. |  |  |  |  |  |  |  |
Vesting Percentage |  |  |  | 25.00% |  |  |  |
Pre-IPO Share Options and restricted shares | Stock option | Employee | Remaining equal installments |  |  |  |  |  |  |  |
Share-based compensation. |  |  |  |  |  |  |  |
Number of equal monthly installments for vesting remaining awards | installment |  |  |  | 36 |  |  |  |

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