OSB GROUP PLC - Transaction in Own Shares and Total Voting Rights

Transaction in Own Shares and Total Voting Rights

The Company announces that on 27 February 2026 it had purchased a total of 88,449 of its ordinary shares of £0.01 each (the "ordinary shares") on the London Stock Exchange, CBOE BXE and CBOE CXE, through the Company's broker Citigroup Global Markets Limited as detailed below. The repurchased ordinary shares will be cancelled.

The purchases form part of the Company’s share buyback programme announced on 13 March 2025.

Following settlement of the above purchases and cancellation of the purchased ordinary shares, the Company's total number of ordinary shares in issue shall be 352,746,901 ordinary shares.

No ordinary shares are held in treasury. Therefore, the total number of voting rights in the Company is 352,746,901 and may be used by shareholders (and others with notification obligations) as the denominator for the calculation by which they will determine if they are required to notify their interest in, or a change in their interest in, the Company under the Financial Conduct Authority’s Disclosure Guidance and Transparency Rules.

Schedule of Purchases – Individual Transactions