v3.26.1
Share-based payments - Movements in the number and weighted average exercise price of share options (Details)
12 Months Ended
Dec. 31, 2025
Options
£ / shares
Dec. 31, 2024
Options
£ / shares
2021 Incentive Plan    
Share-based payments    
Outstanding, start of year 1,171,210 998,598
Granted during the year 7,254,116 397,803
Forfeited during the year (546,886) (96,822)
Exercised during the year (141,621) (128,369)
Outstanding, end of year 7,736,819 1,171,210
Weighted average exercise price, Outstanding, start of year | £ / shares £ 0.91 £ 1.2
Weighted average exercise price, Granted during the year | £ / shares 1.41 0.4
Weighted average exercise price, Forfeited during the year | £ / shares 0.62 2.97
Weighted average exercise price, Outstanding, end of year | £ / shares £ 1.42 £ 0.91
EMI Scheme    
Share-based payments    
Outstanding, start of year 945,429 1,170,231
Forfeited during the year (57,181) (224,802)
Exercised during the year (27,076)  
Outstanding, end of year 861,172 945,429
Weighted average exercise price, Outstanding, start of year | £ / shares £ 2.2 £ 2.5
Weighted average exercise price, Forfeited during the year | £ / shares 8.7 3.8
Weighted average exercise price, Exercised during the year | £ / shares 1.8  
Weighted average exercise price, Outstanding, end of year | £ / shares £ 1.8 £ 2.2