Operating expenses - Disclosure of research and development expenses (Details) - EUR (€) € in Thousands |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2025 |
Dec. 31, 2024 |
Dec. 31, 2023 |
|
| Disclosure of attribution of expenses by nature to their function [line items] | |||
| Operating expenses | € 250,626 | € 185,433 | € 131,997 |
| Research and development expenses | |||
| Disclosure of attribution of expenses by nature to their function [line items] | |||
| Sub-contracting, studies and research | 112,033 | 110,993 | 85,726 |
| Personnel costs | 49,616 | 18,455 | 8,048 |
| Consulting and professional fees | 12,791 | 12,581 | 6,561 |
| Intellectual property fees | 1,025 | 1,741 | 1,645 |
| Other research and development expenses | 2,297 | 2,761 | 1,196 |
| Operating expenses | € 177,761 | € 146,532 | € 103,176 |