v3.26.1
Trade and other receivables (Details) - GBP (£)
£ in Thousands
Dec. 31, 2025
Dec. 31, 2024
Disclosure of offsetting of financial assets [line items]    
R&D tax relief receivable £ 16,644 £ 8,686
Government grants and VAT receivable 4,124 4,349
Prepayments 8,356 4,576
Other receivables 323 634
Amounts due from related party 18 52
Total trade and other receivables 29,465 18,297
HMRC RDEC Scheme    
Disclosure of offsetting of financial assets [line items]    
R&D tax relief receivable 0 8,686
HMRC ERIS and predecessor schemes    
Disclosure of offsetting of financial assets [line items]    
R&D tax relief receivable £ 16,644 £ 0