| BGF Investment Management Limited |
14,375,000 |
£11,643,750 |
| Berenberg Wealth and Asset Management |
9,651,726 |
£7,817,898 |
| Herald Investment Management Limited |
8,178,149 |
£6,624,301 |
| Business Growth Fund PLC |
6,336,526 |
£5,132,586 |
| Danske Bank A/S |
6,250,372 |
£5,062,801 |
| Shareholder Value Beteiligungen Aktiengesellschaft |
5,280,000 |
£4,276,800 |
| Universal-Investment-Gesellschaft mbH |
5,218,184 |
£4,226,729 |
| JPMorgan Asset Management Holdings Inc |
5,020,733 |
£4,066,794 |
| Herald Investment Management Limited |
4,983,149 |
£4,036,351 |
| BennBridge Ltd |
4,740,329 |
£3,839,666 |
| Canaccord Genuity Group Inc |
4,081,834 |
£3,306,286 |
| Octopus Investments Nominees Limited |
3,719,640 |
£3,012,908 |
| Dana Investments |
3,496,494 |
£2,832,160 |
| Miton UK Microcap Trust PLC |
3,385,175 |
£2,741,992 |
| Patrick Richard Evershed |
1,988,580 |
£1,610,750 |
| State Street Nominees Ltd |
1,543,648 |
£1,250,355 |
| Rui Manuel Silva Carvalho Tripa |
1,333,000 |
£1,079,730 |
| AXA Equity & Law Life Assurance Society Plc |
1,209,704 |
£979,860 |
| Ronald John Frederick Howard |
1,125,152 |
£911,373 |
| BP Investment Management Limited |
1,043,648 |
£845,355 |