Annual report pursuant to Section 13 and 15(d)

Share based compensation - Option Activity (Details)

v3.22.4
Share based compensation - Option Activity (Details) - GBP (£)
£ / shares in Units, £ in Thousands
 12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Options      
Exercised (in shares) (5,823,534) (5,723,646) (11,401,390)
Stock options      
Options      
Outstanding at the beginning of the period (in shares) 114,915,438    
Granted (in shares) 56,074,717    
Exercised (in shares) (5,823,534)    
Expired (in shares) (3,238,371)    
Forfeited (in shares) (9,389,161)    
Outstanding at the end of the period (in shares) 152,539,089 114,915,438  
Weighted Average Exercise Price Per Option      
Outstanding at the beginning of the period (in dollars per share) £ 0.52    
Granted (in dollars per share) 0.21    
Exercise price (in dollars per share) 0.01    
Expired (in dollars per share) 0.69    
Forfeited (in dollars per share) 0.21    
Outstanding at the end of the period (in dollars per share) £ 0.44 £ 0.52  
Additional disclosures      
Outstanding - Average Remaining Contractual Term (Years) 7 years    
Outstanding - Aggregate Intrinsic Value £ 8,082    
Exercisable - Options 75,064,373    
Exercisable - Weighted Average Exercise Price Per Option £ 0.64    
Exercisable - Average Remaining Contractual Term (Years) 5 years 3 months 18 days    
Exercisable - Aggregate Intrinsic Value £ 1,077    
Options with nominal exercise price      
Options      
Outstanding at the end of the period (in shares) 40,061,626    
Additional disclosures      
Exercisable - Options 5,295,014    
Options granted on market value at grant date      
Options      
Outstanding at the beginning of the period (in shares) 87,387,314    
Granted (in shares) 31,826,293 21,300,998 15,595,374
Exercised (in shares) (318,222)    
Expired (in shares) (3,077,532)    
Forfeited (in shares) (3,340,390)    
Outstanding at the end of the period (in shares) 112,477,463 87,387,314  
Weighted Average Exercise Price Per Option      
Outstanding at the beginning of the period (in dollars per share) £ 0.68    
Granted (in dollars per share) 0.37    
Exercise price (in dollars per share) 0.11    
Expired (in dollars per share) 0.72    
Forfeited (in dollars per share) 0.59    
Outstanding at the end of the period (in dollars per share) £ 0.60 £ 0.68  
Additional disclosures      
Outstanding - Average Remaining Contractual Term (Years) 6 years 6 months    
Outstanding - Aggregate Intrinsic Value £ 68    
Exercisable - Options 69,769,359    
Exercisable - Weighted Average Exercise Price Per Option £ 0.68    
Exercisable - Average Remaining Contractual Term (Years) 5 years 2 months 12 days    
Exercisable - Aggregate Intrinsic Value £ 18    
RSU      
Options      
Outstanding at the beginning of the period (in shares) 27,528,124    
Granted (in shares) 24,248,424    
Exercised (in shares) (5,505,312)    
Expired (in shares) (160,839)    
Forfeited (in shares) (6,048,771)    
Outstanding at the end of the period (in shares)   27,528,124  
Additional disclosures      
Outstanding - Average Remaining Contractual Term (Years) 8 years 4 months 24 days 8 years 6 months  
Outstanding - Aggregate Intrinsic Value £ 8,014 £ 12,720  
Exercisable - Average Remaining Contractual Term (Years) 6 years 7 months 6 days    
Exercisable - Aggregate Intrinsic Value £ 1,059