REG-Transaction in own shares

OsbAnnouncement

26/06/2025 07:00

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OSB GROUP
PLC                                        
ISIN: GB00BLDRH360
26 June 2025

LEI number: 213800ZBKL9BHSL2K459

OSB GROUP PLC (the “Company”) 
Transaction in Own Shares

The Company announces that on 25 June 2025 it had purchased a total of 4,953
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.

                                                          London Stock Exchange  CBOE BXE  CBOE CXE  
 Number of ordinary shares purchased                      4,953                  -         -         
 Highest price paid (per ordinary share)                  512.00p                -         -         
 Lowest price paid (per ordinary share)                   510.50p                -         -         
 Volume weighted average price paid (per ordinary share)  511.46p                -         -         

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 364,975,212 ordinary shares.

No ordinary shares are held in treasury. Therefore, the total number of voting
rights in the Company is 364,975,212.

In accordance with Article 5(1)(b) of Regulation (EU) No 596/2014 as
incorporated into and implemented under English law (including by virtue of
the European Union (Withdrawal) Act 2018), the detailed breakdown of
individual trades made by Citigroup Global Markets Limited on behalf of the
Company as part of the share buyback programme is set out below.

This announcement does not constitute, or form part of, an offer or any
solicitation of an offer for securities in any jurisdiction.

Schedule of Purchases – Individual Transactions

 Issuer Name        OSB GROUP PLC                     
 LEI                213800ZBKL9BHSL2K459              
 ISIN               GB00BLDRH360                      
 Intermediary Name  Citigroup Global Markets Limited  
 Intermediary Code  SBILGB2L                          
 Timezone           GMT+1                             
 Currency           GBP                               



 Transaction Date  Trade Time  Currency  Volume  Price   Trading Venue  Transaction ID  
 25-06-2025        15:28:36    GBp       487     512.00  XLON           xHaN@pVfja1     
 25-06-2025        15:16:37    GBp       8       512.00  XLON           xHaN@pVf7Po     
 25-06-2025        15:16:36    GBp       177     512.00  XLON           xHaN@pVf7RC     
 25-06-2025        15:16:35    GBp       321     512.00  XLON           xHaN@pVf4Wl     
 25-06-2025        15:12:59    GBp       314     510.50  XLON           xHaN@pVfEml     
 25-06-2025        15:12:05    GBp       255     511.00  XLON           xHaN@pVfCcQ     
 25-06-2025        15:12:05    GBp       252     511.50  XLON           xHaN@pVfCXr     
 25-06-2025        15:12:05    GBp       364     512.00  XLON           xHaN@pVfCXt     
 25-06-2025        11:59:07    GBp       180     511.50  XLON           xHaN@pVb4Sq     
 25-06-2025        11:40:04    GBp       246     511.50  XLON           xHaN@pVcrUW     
 25-06-2025        11:35:21    GBp       126     511.50  XLON           xHaN@pVc@k@     
 25-06-2025        11:35:21    GBp       208     511.50  XLON           xHaN@pVc@ky     
 25-06-2025        10:27:05    GBp       143     511.00  XLON           xHaN@pVd$Cj     
 25-06-2025        10:11:43    GBp       230     511.00  XLON           xHaN@pVdiiM     
 25-06-2025        09:43:34    GBp       207     510.50  XLON           xHaN@pVdFqP     
 25-06-2025        09:19:47    GBp       150     510.50  XLON           xHaN@pVWZcZ     
 25-06-2025        09:06:47    GBp       179     511.00  XLON           xHaN@pVWG7I     
 25-06-2025        09:03:27    GBp       234     511.50  XLON           xHaN@pVWSSu     
 25-06-2025        08:40:02    GBp       218     511.00  XLON           xHaN@pVXmwy     
 25-06-2025        08:10:00    GBp       242     512.00  XLON           xHaN@pVXG33     
 25-06-2025        08:09:52    GBp       327     512.00  XLON           xHaN@pVXGMQ     
 25-06-2025        08:09:52    GBp       85      512.00  XLON           xHaN@pVXGMS