As at 25 September 2019, the Company had been notified, in accordance with the DTRs, of the following interests representing 3 per cent or more of the voting rights in the issued share capital of the Company:
| Name of holder | Total holding of shares | % of total voting rights |
| Artemis Investment Management | 10,511,232 | 21.01 |
| Sanford DeLand Asset Management | 8,500,000 | 16.99 |
| Legal & General Investment Management | 4,588,000 | 9.17 |
| AXA Framlington Investment Managers | 2,979,877 | 5.96 |
| AJ Williams | 2,665,584 | 5.33 |
| Chelverton Asset Management | 2,419,904 | 4.84 |
| GLG Partners CfD | 2,380,825 | 4.76 |
| Hargreaves Landsdown, stockbrokers | 1,913,682 | 3.83 |
| IG Markets, stockbrokers | 1,540,439 | 3.08 |
| Deltic Group | 1,500,000 | 3.00 |