Subsequent events	6 Months Ended
Jun. 30, 2023
Subsequent events.
Subsequent events	15. Subsequent events On July 17, 2023, the Company completed an underwritten public offering of its securities, pursuant to which the Company issued and sold 6,117,648 ADSs, representing the same number of ordinary shares, nominal value £0.01 per share, which included 1,411,764 ADSs sold upon the underwriters’ full exercise of their option to purchase additional ADSs, and 4,705,882 non-voting ordinary shares, nominal value £0.01 per share, at a public offering price of $21.25 per ADS or non-voting ordinary share, respectively. The transaction resulted in gross proceeds to the Company of $230.0 million, and after deducting underwriting discounts, commissions, and estimated offering expenses of $14.5 million, net proceeds to the Company of approximately $215.5 million.

The entire disclosure for significant events or transactions that occurred after the balance sheet date through the date the financial statements were issued or the date the financial statements were available to be issued. Examples include: the sale of a capital stock issue, purchase of a business, settlement of litigation, catastrophic loss, significant foreign exchange rate changes, loans to insiders or affiliates, and transactions not in the ordinary course of business.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 855
-Name Accounting Standards Codification
-Publisher FASB
-URI https://asc.fasb.org//855/tableOfContent

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 855
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147483399/855-10-50-2

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