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Subsequent events (Details) - VSOP - EUR (€)
€ in Millions
1 Months Ended
Mar. 26, 2024
Mar. 22, 2024
Mar. 31, 2024
Subsequent events      
Number of shares issued for exercise of stock options   786,746  
Number of shares received   786,746  
Beneficiaries declared the exercise of all their exercisable 786,746    
Minimum      
Subsequent events      
Distribution costs     € 2
Maximum      
Subsequent events      
Distribution costs     € 3