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v3.23.2

Share-based payments - Movements in the number and weighted average exercise price of share options (Details) | 6 Months Ended | 12 Months Ended
--- | --- | ---
Jun. 30, 2023 Options £ / shares | Dec. 31, 2022 Options £ / shares
Two Thousand And Twenty One Incentive Award Plan |  |
Share-based payments |  |
Outstanding, start of period | 4,355,669 |
Granted during the period | 500,000 | 5,012,495
Exercised during the period | (346,755) |
Forfeited during the period | (132,693) | (656,826)
Outstanding, end of period | 4,376,221 | 4,355,669
Average Outstanding, start of period | £ / shares | £ 6.63 |
Average Granted during the period | £ / shares |  | £ 6.63
Average Forfeited during the period | £ / shares | 6.63 | 6.63
Average Outstanding, end of period | £ / shares | £ 6.63 | £ 6.63
EMI Scheme |  |
Share-based payments |  |
Outstanding, start of period | 21,011,084 | 19,670
Grant arising due to scheme modification |  | 23,213,933
Exercised during the period | (6,642,385) | (645,571)
Forfeited during the period | (7,875) | (1,576,948)
Outstanding, end of period | 14,360,824 | 21,011,084
Average Outstanding, start of period | £ / shares | £ 0.19 | £ 308.06
Average Granted due to scheme modification | £ / shares |  | 0.23
Average Exercised during the period | £ / shares | 0.09 | 0.17
Average Forfeited during the period | £ / shares | 0.18 | 0.83
Average Outstanding, end of period | £ / shares | £ 0.24 | £ 0.19

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- Definition The number of share options outstanding in a share-based payment arrangement. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 2 -IssueDate 2022-03-24 -Paragraph 45 -Subparagraph d -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=2&code=ifrs-tx-2022-en-r&anchor=para_45_d&doctype=Standard -URIDate 2022-03-24 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 2 -IssueDate 2022-03-24 -Paragraph 45 -Subparagraph b -Clause i -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=2&code=ifrs-tx-2022-en-r&anchor=para_45_b_i&doctype=Standard -URIDate 2022-03-24 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 2 -IssueDate 2022-03-24 -Paragraph 45 -Subparagraph b -Clause vi -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=2&code=ifrs-tx-2022-en-r&anchor=para_45_b_vi&doctype=Standard -URIDate 2022-03-24 + Details
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- Definition The number of share options exercised in a share-based payment arrangement. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 2 -IssueDate 2022-03-24 -Paragraph 45 -Subparagraph b -Clause iv -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=2&code=ifrs-tx-2022-en-r&anchor=para_45_b_iv&doctype=Standard -URIDate 2022-03-24 + Details
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