| Octopus Investments Limited | 10,550,075 | 12.96% | |
| Estate of William Black Armstrong Investments Limited | 10,680,000 | 14.43% | |
| Octopus Investments Limited | 10,550,075 | 14.26% | |
| Peel Hunt LLP | 0 | 0.00% | |
| Estate of William Black Armstrong Investments Limited | 9,880,000 | 13.35% | |
| Peel Hunt LLP | 8,138,516 | 11.00% | |
| Estate of William Black Armstrong Investments Limited | 9,150,000 | 12.37% | |
| Peel Hunt LLP | 8,139,266 | 11.00% | |
| Peel Hunt LLP | 7,914,266 | 10.70% | |
| Estate of William Black Armstrong Investments Limited | 8,850,000 | 11.96% | |
| Spreadex LTD | 1,610,000 | 2.18% | |
| Spreadex LTD | 4,135,000 | 5.59% | |
| Bottomley Family | 4,855,000 | 7.10% | |
| Estate of William Black Armstrong Investments Limited | 7,430,000 | 10.04% | |
| Canaccord Genuity Group Inc | 13,269,075 | 17.93% | |
| Spreadex LTD | 5,275,000 | 7.68% | |
| Amati AIM VCT plc | 705,493 | 1.02% | |
| Octopus Investments Limited | 10,550,075 | 15.36% | |
| Spreadex LTD | 3,275,000 | 4.77% | |
| Canaccord Genuity Group Inc. | 13,269,075 | 19.31% | |
| Bottomley Family | 4,350,000 | 6.30% | |
| Rathbones Investment Management Ltd | 1,001,338 | 1.46% | |
| Spreadex LTD | 3,475,040 | 5.06% | |
| Cantor Fitzgerald Europe | 1,075,000 | 6.09% | |
| William Black Armstrong Investments Limited | 1,680,000 | 9.51% | |
| William Black Armstrong Investments Limited | 1,830,000 | 10.36% | |
| CANACCORD GENUITY GROUP INC | 4,105,000 | 23.25% | |
| William Black Armstrong Investments Limited | 1,260,000 | 7.14% | |
| William Black Armstrong Investments Limited | 1,450,000 | 8.21% | |
| William Black Armstrong Investments Limited | 1,160,000 | 6.57% | |
| William Black Armstrong Investments Limited | 920,000 | 5.21% | |
| William Black Armstrong Investments Limited | 1,060,000 | 6.00% | |
| William Black Armstrong Investments Limited | 820,000 | 4.64% | |
| Bottomley Family | 729,000 | 4.14% | |
| Bottomley Family | 589,500 | 3.30% | |
| Armstrong Investments Limited | 1,250,000 | 7.08% | |
| Gresham House Asset Management Limited | 1,065,500 | 6.03% | |
| William Black | 1,000,000 | 5.66% | |
| Armstrong Investments Limited | 720,000 | 4.08% | |
| Amati AIM VCT plc | 705,493 | 3.99% | |
| Gresham House Asset Management Limited | 1,895,499 | 10.73% | |
| Rathbones Investment Management Ltd | 52,420,889 | 5.94% | |
| Herbert Stuart Bottomley & Mrs Hanna Bottomley | 384,500 | 2.18% | |
| Octopus Investments Limited | 3,886,000 | 22.00% | |
| Canaccord Genuity Group Inc. | 219,000,000 | 24.80% | |
| Herbert Stuart Bottomley & Mrs Hanna Bottomley | 17,225,000 | 5.10% | |
| Herbert Stuart Bottomley & Mrs Hanna Bottomley | 15,725,000 | 4.60% | |
| Herbert Stuart Bottomley & Mrs Hanna Bottomley | 11,000,000 | 3.24% | |
