v3.26.1
Basic and diluted loss per share (Details) - EUR (€)
€ / shares in Units, € in Thousands
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Basic and diluted loss per share      
Net loss for the period € (354,138) € (184,212) € (110,426)
Weighted average number of shares outstanding used to calculate basic loss per share 186,801,792 59,778,701 45,351,799
Weighted average number of shares outstanding used to calculate diluted loss per share 186,801,792 59,778,701 45,351,799
Basic loss per share € (1.9) € (3.08) € (2.43)
Diluted loss per share € (1.9) € (3.08) € (2.43)