Significant Shareholders
In so far as the company has been notified, the following table represents significant shareholders as at March 7th 2019;
| Name | Number of shares held | Percentage of issued share capital |
| Aquarius Equity Partners (Manchester) | 7,459,425 | 12.9% |
| Polar Capital (London) | 5,555,555 | 9.6% |
| Canaccord Genuity Wealth Mgt (London) | 5,216,924 | 9.0% |
| Calculus Capital (London) | 4,609,889 | 8.0% |
| Baillie Gifford & Co (Edinburgh) | 3,694,172 | 6.4% |
| Legal & General Investment Mgt (London) | 3,552,000 | 6.1% |
| Mr Charles D Blundell (UK) | 3,035,000 | 5.3% |
| Mr Andrew Almond (Regional (England)) | 3,010,000 | 5.2% |
| Mr Andrew W Black (UK) | 2,845,098 | 4.9% |
AIM securities in issue: 57,792,636 (no shares held in Treasury)
The percentage of AIM securities not in public hands is 24.2%
Directors and their interests
| Name | Number of shares held | Percentage of issued share capital |
| Clive James Dix | 1,414,936 | 2.4% |
| Alexander James Stevenson | 485,403 | 0.8% |
| Harry Finch | 321,425 | 0.6% |
| Craig Fox | 7,183 | <0.1% |