Director/PDMR Shareholding

13 May 2024

OSB GROUP PLC
(the Company)

Notification of Transactions of Persons Discharging Managerial Responsibilities (PDMRs)

The Company notifies the following changes in the interests in the ordinary shares of £0.01 each (Shares) of the Company of the designated Chief Financial Officer* arising from awards granted under the Performance Share Plan (PSP) on 13 May 2024 at a price of £3.8613 per Share being the average of the three Dealing Days post the 2023 preliminary results. This is in line with our normal approach to determining the grant level.

The PSP awards are based on a mixture of internal financial performance targets, risk-based measures, ESG measures and relative total shareholder return. The performance targets will be measured over three financial years with vesting in five equal tranches between three and seven years following grant. Clawback and malus provisions apply to these Awards.

The following notification made under Article 19 of the UK Market Abuse Regulation ("UK MAR") relates to a transaction by a PDMR in the shares of the Company.

1. Details of the person discharging managerial responsibilities / person closely associated
Name of natural person	Victoria Hyde
2. Reason for the notification
a. Position/status	Designate Chief Financial Officer*
b. 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	Grant of Award
c. Price(s) and Volume(s)	Price	Volume
	£3.8613	58,177
d. Aggregated Information:	Aggregated volume 58,177 Aggregated price £224,638.85
e. Date of transaction	13 May 2024
f. Place of transaction	Outside a trading venue

* subject to regulatory approval

OSB GROUP PLC

Jason Elphick	t: 01634 848 944
Group General Counsel and Company Secretary
Investor relations Alastair Pate Group Head of Investor Relations
Email: osbrelations@osb.co.uk	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.