| Helen and Barrie Whipp |
628,102 |
£590,416 |
| Canaccord Genuity Group Inc |
620,000 |
£582,800 |
| Lion Trust Investment Partners LLP |
596,066 |
£560,302 |
| Helium Special Situations Fund |
443,751 |
£417,126 |
| Gresham House Asset Management Limited |
420,000 |
£394,800 |
| Quilter plc |
380,000 |
£357,200 |
| Hargreaves Lansdown |
347,733 |
£326,869 |
| William Christopher Currie |
347,667 |
£326,807 |
| William Christopher Currie |
347,667 |
£326,807 |
| Simon William Bragg |
330,000 |
£310,200 |
| Octopus Aim VCT Funds |
315,000 |
£296,100 |
| W. H. Ireland Ltd |
298,353 |
£280,452 |
| Jeremy Roth |
261,312 |
£245,633 |
| Stephen Morris |
238,472 |
£224,164 |
| Evelyn Partners Investment Services Limited |
207,500 |
£195,050 |
| Herbert Stuart Bottomley and close family |
202,500 |
£190,350 |