OSB Group said it bought back 416,491 ordinary shares between 03 August 2026 and 07 August 2026 across the London Stock Exchange, CBOE BXE, CBOE CXE and Aquis Exchange through Jefferies International Limited. The repurchased shares will be cancelled. After settlement and cancellation, the company said it will have 341,089,143 ordinary shares in issue, with no shares held in treasury, leaving total voting rights at 341,089,143. The purchases form part of the company's share buyback programme announced on 5 March 2026. The statement also said a detailed breakdown of individual trades was made available in an attached PDF in line with Article 5(2)(b) of Regulation (EU) No 596/2024 as incorporated into and implemented under English law.