Director/PDMR Shareholding - Seite 2

c. Position/status

Son of Jason Elphick, Group General Counsel and Company Secretary

d. Initial notification/amendment



Initial Notification

3. Details of the issuer, emission allowance market participant, auction platform, auctioneer or auction monitor a. Full name of the entity OSB GROUP PLC b. Legal Entity Identifier code 213800ZBKL9BHSL2K459 4. Details of the transaction(s): a. Description of the financial instrument, type of instrument

Ordinary shares of £0.01 each

Identification code GB00BLDRH360 b. Nature of Transaction Purchase of 651 shares c. Price(s) and Volume(s) Price Volume £4.6784 651 d. Aggregated Information:

Aggregated volume
651
Aggregated price
£3,045.64

e. Date of transaction 28 April 2025 f. Place of transaction London Stock Exchange, Main Market (XLON)

Enquiries:

Dionne Mortley-Forde	t: 01634 848 944
Group Head of Governance & Secretariat
Investor relations
Alastair Pate Group Head of Investor Relations Email: [e-mail]	t: 01634 838973
Brunswick
Robin Wrench / Simone Selzer	t: 020 7404 5959

Notes to Editors

About OSB GROUP PLCs

OSB began trading as a bank on 1 February 2011 and was admitted to the main market of the London Stock Exchange in June 2014 (OSB.L). OSB joined the FTSE 250 index in June 2015. On 4 October 2019, OSB acquired Charter Court Financial Services Group plc and its subsidiary businesses. On 30 November 2020, OSB GROUP PLC became the listed entity and holding company for the OSB Group. The Group provides specialist lending and retail savings and is authorised by the Prudential Regulation Authority, part of the Bank of England, and regulated by the Financial Conduct Authority and Prudential Regulation Authority. The Group reports under two segments, OneSavings Bank and Charter Court Financial Services.