Share capital and other reserves (Tables)
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12 Months Ended |
Dec. 31, 2025 |
| Share capital and other reserves |
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| Summary of allotted, called up and fully paid shares |
| | | | | | | | | | | December 31, | | December 31, | | | 2025 | | 2024 | | | No. | | £ | | No. | | £ | Ordinary, of $0.001 each | | 101,602,621 | | 79,328 | | 69,542,515 | | 54,753 | | | 101,602,621 | | 79,328 | | 69,542,515 | | 54,753 |
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| Summary of ordinary shares issued |
| | | | | | | | | | | Shares issued | | Share capital issued | | Proceeds received | | Premium arising | | | No. | | £ | | £ 000 | | £ 000 | January 2025 Offering | | 15,000,000 | | 11,972 | | 44,203 | | 44,066 | July 2025 Offering | | 13,800,000 | | 10,181 | | 48,550 | | 48,502 | At-the-market offering | | 2,986,768 | | 2,219 | | 12,740 | | 12,739 | Tranche A Warrants | | 50,000 | | 37 | | 220 | | 275 | 2021 Incentive Plan | | 196,262 | | 146 | | — | | — | EMI Scheme | | 27,076 | | 20 | | 47 | | 47 | | | 32,060,106 | | 24,575 | | 105,760 | | 105,629 |
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| Summary of nature and purpose of other reserves |
| | | | | | | | | December 31, | | December 31, | | December 31, | | | 2025 | | 2024 | | 2023 | | | £ 000 | | £ 000 | | £ 000 | Share based payment reserve | | 34,215 | | 27,073 | | 21,140 | Foreign currency translation reserve | | 11,139 | | 3,910 | | 1,484 | Warrant reserve | | 36,638 | | 13,475 | | 9,292 | Merger reserve | | 54,841 | | 54,841 | | 54,841 | | | 136,833 | | 99,299 | | 86,757 |
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