| Summary of components of income tax expense (benefit) |
| | | | | | | | | | | 3 months ended June 30, | | 6 months ended June 30, | | | 2026 | | 2025 | | 2026 | | 2025 | | | £ 000 | | £ 000 | | £ 000 | | £ 000 | Enhanced R&D intensive support | | — | | 3,122 | | 600 | | 5,892 | Tax charge on RDEC | | (1,264) | | — | | (2,346) | | — | Adjustments for R&D tax relief of prior periods | | — | | — | | — | | 13,700 | | | (1,264) | | 3,122 | | (1,746) | | 19,592 |
|