1 June 2026

Keystone Law Group Plc

("Keystone" or the "Company")

Transaction in Own Shares

Keystone announces that, in accordance with the terms of its share buyback programme announced on 15 May 2026 (the "Buyback"), the Company purchased a total of 140,000 of its ordinary shares of £0.002 each ("Shares") in the period from 25 May 2026 up to and including 29 May 2026. The purchased Ordinary Shares will be held in treasury.

Aggregated information

Following the purchase of these shares, the total number of Shares in issue will be 31,717,258 including 198,000 Shares held in treasury. The total voting rights in the Company will therefore be 31,519,258. This figure may be used by shareholders as the denominator for the calculations by which they will determine if they are required to notify their interest in, or a change to their interest in, the Company under the FCA's Disclosure Guidance and Transparency Rules.

In accordance with Article 5(1)(b) of Regulation (EU) No 596/2014 (the Market Abuse Regulation), as it forms part of Retained EU Law as defined in the European Union (Withdrawal) Act 2018, the table below contains detailed information of the individual trades made by Panmure Liberum Limited as part of the Buyback.

For further information please contact:

Keystone Law Group plc

James Knight, Chief Executive Officer

Ashley Miller, Finance Director

www.keystonelaw.com

 +44 (0) 20 3319 3700

Panmure Liberum Limited (Nominated Adviser and Joint Broker)

Atholl Tweedie (Corporate Finance)

Rupert Dearden (Corporate Broking)

www.panmureliberum.com

+44 (0) 20 7886 2500

Investec Bank plc (Joint Broker)

Carlton Nelson

James Rudd

www.investec.co.uk

+44 (0) 20 7597 5970

Vigo Consulting (Financial Public Relations)

Jeremy Garcia

Fiona Hetherington

[email protected]

+44 (0)207 390 0233

Notes to editors

Keystone (AIM: KEYS) the premier tech-enabled platform law firm. It is a highly scalable business with an organic growth strategy which has a proven record of delivering sustainable growth since its IPO in 2018.  Ranked within the UK Top 100 law firms, Keystone provides conventional legal services in a £14bn addressable market through its differentiated platform model which has three defining characteristics:

·    Lawyers have freedom, flexibility and autonomy, and are paid up to 75% of what they bill.

·    Lawyers determine how, when and where they work, in contrast to the conventional law firm model.

·    Lawyers are provided full infrastructure and support via its central office team, bespoke user-friendly IT platform, and network of colleagues and events.

Keystone is a full-service law firm, with extensive experience across a wide range of sectors and specialisms.   With nearly 500 high calibre self-employed Principal lawyers, supported by over 150 other fee earners, Keystone delivers dynamic services to its client base which ranges from fast growing start-ups to multinational corporations and high net worth individuals.

More information about Keystone can be found at www.keystonelaw.co.uk.