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OSB GROUP PLC - Transaction in Own Shares

In brief · summary, not quotable

OSB GROUP PLC has announced the purchase of 191,897 ordinary shares between September 21 and September 25, 2026, as part of its ongoing share buyback program. These repurchased shares will be cancelled, reducing the total number of ordinary shares in issue to 338,454,529. The average purchase price during this period ranged from approximately 505.27p to 514.96p per share across various exchanges.

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The Company announces that, for the period from 21 September 2026 to 25 September 2026, inclusive, it had purchased a total of 191,897 of its ordinary shares of £0.01 each (the "ordinary shares") on the London Stock Exchange, CBOE BXE ,CBOE CXE and Aquis Exchange, through the Company’s broker Jefferies International Limited as detailed below. The repurchased ordinary shares will be cancelled.

21 September 2026London Stock ExchangeCBOE BXECBOE CXEAquis Exchange
Number of ordinary shares purchased0000
Highest price paid (per ordinary share)0.00p0.00p0.00p0.00p
Lowest price paid (per ordinary share)0.00p0.00p0.00p0.00p
Volume weighted average price paid (per ordinary share)0.00p0.00p0.00p0.00p
22 September 2026London Stock ExchangeCBOE BXECBOE CXEAquis Exchange
Number of ordinary shares purchased9911,052183119
Highest price paid (per ordinary share)520.00p520.00p518.50p515.00p
Lowest price paid (per ordinary share)513.50p513.50p513.50p514.00p
Volume weighted average price paid (per ordinary share)514.96p514.96p514.90p514.92p
23 September 2026London Stock ExchangeCBOE BXECBOE CXEAquis Exchange
Number of ordinary shares purchased14,99216,0072,5571,971
Highest price paid (per ordinary share)514.00p514.00p514.00p514.00p
Lowest price paid (per ordinary share)508.00p508.00p508.00p508.00p
Volume weighted average price paid (per ordinary share)509.10p509.11p509.10p509.11p
24 September 2026London Stock ExchangeCBOE BXECBOE CXEAquis Exchange
Number of ordinary shares purchased35,77036,8386,6194,466
Highest price paid (per ordinary share)509.00p509.00p509.00p509.00p
Lowest price paid (per ordinary share)503.00p503.00p503.00p503.00p
Volume weighted average price paid (per ordinary share)505.30p505.29p505.27p505.29p
25 September 2026London Stock ExchangeCBOE BXECBOE CXEAquis Exchange
Number of ordinary shares purchased29,67831,1565,6753,823
Highest price paid (per ordinary share)510.50p510.50p511.00p510.50p
Lowest price paid (per ordinary share)504.50p504.50p504.50p504.50p
Volume weighted average price paid (per ordinary share)506.57p506.53p506.55p506.55p

The purchases form part of the Company's share buyback programme announced on 5 March 2026.

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 338,454,529 ordinary shares.

No ordinary shares are held in treasury. Therefore, the total number of voting rights in the Company is 338,454,529.

Schedule of Purchases

Issuer NameOSB GROUP PLC
LEI223800ZBKL9BHSL2K459
ISINGB00BLDRH360
Intermediary NameJefferies International Limited
Intermediary CodeJEFFGB2XXXX
TimezoneGMT
CurrencyGBP

Individual Transactions:

Please see attached PDF for full list of transactions.

Cleaned text: letterheads, contacts and legal notices removed. View the original announcement ↗ · Company filings. Not investment advice.

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