v3.26.1
Income taxes - Summary of income tax reconciliation (Details) - EUR (€)
€ in Thousands
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Income taxes      
Income/loss (-) before tax € 300,871 € (3,085) € 5,625
Income tax debit/credit (-), calculated using the Belgian statutory tax rate on the accounting income/loss (-) before tax (theoretical) 75,218 (771) 1,406
Tax expenses in statement of operations (effective) (18,621) (1,803) 9,613
Difference in tax expense/income to explain (93,839) (1,032) 8,207
Effect of tax rates in other jurisdictions (2,187) (132) (94)
Effect of non-taxable income (3,774) (5,247) (6,752)
Effect of share based payment expenses without tax impact 6,092 4,399 9,157
Effect of expenses/income (-) not subject to tax (891) 52 (5)
Effect of non tax-deductible expenses 3,472 1,117 1,549
Effect of recognition of previously non-recognized deferred tax assets   15 (81)
Effect of tax losses (Utilized) reversed (296)   (267)
Effect of under or over provision in prior periods 336 13 (722)
Effect of non-recognition of deferred tax assets (6,986) (1,338) 34,339
Effect of derecognition of previously recognized deferred tax assets 827 € 89 1,062
Effect of use of IID € (90,432)   € (29,979)