v3.26.3
Loss per share (Details)
£ / shares in Units, £ in Thousands, shares in Thousands
12 Months Ended
Jun. 30, 2026
GBP (£)
£ / shares
item
shares
Jun. 30, 2025
GBP (£)
£ / shares
shares
Jun. 30, 2024
GBP (£)
£ / shares
shares
Earnings/(loss) per share      
Loss for the year | £ £ (42,954) £ (33,023) £ (113,159)
Basic loss per share | £ / shares £ (0.2491) £ (0.1932) £ (0.6844)
Diluted loss per share | £ / shares [1] £ (0.2491) £ (0.1932) £ (0.6844)
Number of categories of dilutive potential ordinary shares | item 1    
Weighted average number of ordinary shares used as the denominator in calculating basic loss per share 172,433 170,931 165,345
Weighted average number of ordinary shares and potential ordinary shares used as the denominator in calculating diluted loss per share [2] 172,433 170,931 165,345
Class A ordinary shares      
Earnings/(loss) per share      
Weighted average number of ordinary shares used as the denominator in calculating basic loss per share 57,768 57,225 56,091
Class B ordinary shares      
Earnings/(loss) per share      
Weighted average number of ordinary shares used as the denominator in calculating basic loss per share 116,348 115,389 110,937
Treasury shares      
Earnings/(loss) per share      
Weighted average number of ordinary shares used as the denominator in calculating basic loss per share 1,683 1,683 1,683
[1] For the years ended 30 June 2026, 2025 and 2024, potential ordinary shares are anti-dilutive, as their inclusion in the diluted loss per share calculation would reduce the loss per share, and hence have been excluded.
[2] The increase in Class A and Class B ordinary shares in 2026 and 2025 is a result of the transaction agreement with INEOS. See Note 22 for further detail