| Herald Investment Management Limited |
9,644,786 |
£5,449,304 |
| CANACCORD GENUITY GROUP INC |
1,928,333 |
£1,089,508 |
| Miton UK Microcap Trust PLC |
1,879,469 |
£1,061,900 |
| Edale Capital LLP |
1,095,932 |
£619,202 |
| Ruffer LLP |
1,016,665 |
£574,416 |
| EdenTree Investment Management |
1,000,000 |
£565,000 |
| John Booth and The John Booth Charitable Foundation |
914,473 |
£516,677 |
| Richard Farmbrough |
71,454 |
£40,372 |
| Broadwalk Asset Management LLP |
47,000 |
£26,555 |
| Lucy Farmbrough |
42,872 |
£24,223 |
| BlackRock Inc |
1,466 |
£828 |
| The Capital Group Companies, Inc. |
1,208 |
£682 |