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v3.26.1

Management and assessment of financial risks (Details) € in Thousands | 12 Months Ended |  |  |  |
--- | --- | --- | --- | --- | ---
Dec. 31, 2025 EUR (€) financial_institution | Dec. 31, 2024 EUR (€) | Dec. 31, 2023 EUR (€) | Aug. 20, 2023 | Dec. 31, 2022 EUR (€)
Disclosure of credit risk exposure [line items] |  |  |  |  |
Assets | € 584,341 | € 205,228 | € 327,062 |  |
Cash and cash equivalents | € 516,685 | € 144,221 | € 251,942 |  | € 26,950
Kreos & Claret financing, tranche B and C | European Central Bank base rate |  |  |  |  |
Disclosure of credit risk exposure [line items] |  |  |  |  |
Borrowings, adjustment to interest rate basis |  | 7.50% |  | 7.50% |
Interest rate collar range |  | 1.50% |  |  |
Kreos & Claret financing, tranche B and C | European Central Bank base rate | Top of range |  |  |  |  |
Disclosure of credit risk exposure [line items] |  |  |  |  |
Borrowings, interest rate basis |  | 4.00% |  | 4.00% |
Kreos & Claret financing, tranche B and C | European Central Bank base rate | Bottom of range |  |  |  |  |
Disclosure of credit risk exposure [line items] |  |  |  |  |
Borrowings, interest rate basis |  | 2.50% |  | 2.50% |
Credit risk |  |  |  |  |
Disclosure of credit risk exposure [line items] |  |  |  |  |
Number of financial institutions to maintain cash | financial_institution | 5 |  |  |  |
Balances with banks in excess of legally insured limit | € 92,482 |  |  |  |
Investments in mutual funds and structured notes | 437,032 |  |  |  |
United States of America, Dollars | Currency risk |  |  |  |  |
Disclosure of credit risk exposure [line items] |  |  |  |  |
Assets | 327,222 |  |  |  |
Cash and cash equivalents | 143,180 |  |  |  |
Receivables due from related parties | 194,712 |  |  |  |
Liabilities | 24,368 |  |  |  |
Payables to related parties | € 22,726 |  |  |  |
Reasonably possible change in risk variable, percent | 10.00% |  |  |  |
Adverse change in exchange rate, impact on foreign exchange loss | € 29,747 |  |  |  |
Favorable change in exchange rate, impact on foreign exchange gain | € 36,358 |  |  |  |

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