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v3.25.4

Company information and operations - Additional Information (Details) | 1 Months Ended | 3 Months Ended | 12 Months Ended |  |
--- | --- | --- | --- | --- | ---
Aug. 31, 2025 USD ($) | Dec. 31, 2025 SFr / shares shares | Sep. 30, 2024 shares | Jun. 30, 2023 shares | Dec. 31, 2025 USD ($) shares | Dec. 31, 2025 CHF (SFr) SFr / shares shares | Dec. 31, 2024 USD ($) shares | Dec. 31, 2023 USD ($) shares | Dec. 31, 2025 $ / shares shares | Dec. 31, 2022 shares
Disclosure Of Company Information And Operations [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Aggregate offing price | $ | $ 50,000,000.0 |  |  |  | $ 1,107,000 |  |  |  |  |  |  |
Number of shares sold under ATM program (in shares) |  |  |  |  | 228,238 | 228,238 |  |  |  |  |  |
Gross proceeds from shares sold under ATM program | $ |  |  |  |  | $ 1,093,000 |  | $ 0 | [1] | $ 0 | [1] |  |
Ordinary Shares |  |  |  |  |  |  |  |  |  |  |  |
Disclosure Of Company Information And Operations [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Par value (in dollars per share) | (per share) |  | SFr 0.05 |  |  |  | SFr 0.05 |  |  |  |  | $ 0.06 |
Number of conditional share capital available for financing (in shares) |  | 18,277,363 |  |  |  | 18,277,363 | 21,599,082 |  |  |  | 18,277,363 |
Number of conditional share capital available for employee participation (in shares) |  | 21,383,247 |  |  |  | 21,383,247 | 18,061,528 |  |  |  | 21,383,247 |
Minimum |  |  |  |  |  |  |  |  |  |  |  |
Disclosure Of Company Information And Operations [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Authorized increase in nominal share capital |  |  |  |  | 4,192,193.63 | SFr 3,319,908.2 |  |  |  |  |  |
Maximum |  |  |  |  |  |  |  |  |  |  |  |
Disclosure Of Company Information And Operations [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Authorized increase in nominal share capital |  |  |  |  | $ 6,288,042.55 | SFr 4,979,862.3 |  |  |  |  |  |
Maximum | Ordinary Shares |  |  |  |  |  |  |  |  |  |  |  |
Disclosure Of Company Information And Operations [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Authorized increase in nominal share capital issuance (in shares) |  |  |  |  | 33,199,082 | 33,199,082 |  |  |  |  |  |
Par value (in dollars per share) | (per share) |  | SFr 0.05 |  |  |  | SFr 0.05 |  |  |  |  | $ 0.06 |
Share capital |  |  |  |  |  |  |  |  |  |  |  |
Disclosure Of Company Information And Operations [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Number of shares issued (in shares) |  | 89,321,220 |  |  |  | 89,321,220 | 79,321,220 |  | 76,898,164 |  | 89,321,220 | 66,398,164
Number of shares outstanding (in shares) |  | 68,486,338 |  |  |  | 68,486,338 | 66,687,085 |  |  |  | 68,486,338 |
Issuance of shares to be held as treasury shares (in shares) |  | 10,000,000 | 2,423,056 | 10,500,000 | 10,000,000 | 10,000,000 | 2,423,056 |  | 10,500,000 |  |  |
Treasury Share capital |  |  |  |  |  |  |  |  |  |  |  |
Disclosure Of Company Information And Operations [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Number of shares issued (in shares) |  | 20,834,882 |  |  |  | 20,834,882 | 12,634,135 |  | 11,667,605 |  | 20,834,882 | 2,166,944
Issuance of shares to be held as treasury shares (in shares) |  |  |  |  | 10,000,000 | 10,000,000 | 2,423,056 |  | 10,500,000 |  |  |
Aggregate offing price | $ |  |  |  |  | $ 14,000 |  |  |  |  |  |  |
Number of shares sold under ATM program (in shares) |  |  |  |  | 228,238 | 228,238 |  |  |  |  |  |
[1] | Refer to “Note 2—Material Accounting Policies—Statement of Cash Flows - Interest Classification” for details on change in accounting policy.

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