27 March 2026

London Security plc

("the Company")

Transaction in Own Shares

London Security plc (AIM: LSC) announces that on 24 March 2026, pursuant to the authority approved by shareholders at the Company's Annual General Meeting dated 25 June 2025, the Company purchased 450 ordinary shares of 1 pence each ("Ordinary Shares") at a price of 2,400 pence per share (the "Transaction").

The Ordinary Shares purchased pursuant to the Transaction, will be held in treasury. Following the Transaction, the Company holds 900 Ordinary Shares in treasury. Therefore, the total number of voting rights in the Company is 12,258,977 Ordinary Shares, which may be used by shareholders as the denominator for the calculations by which they determine if they are required to notify their interest in, or a change to their interest in, the Company under the Financial Conduct Authority's Disclosure and Transparency Rules.

For the purposes of UK MAR, the person responsible for arranging for the release of this information on behalf of London Security plc is Richard Pollard, Company Secretary.

The information below, set out in accordance with the requirements of the EU Market Abuse Regulation, provides further detail on shares acquired.

For further information please contact:

London Security plc

Richard Pollard

Company Secretary                                                                        01422 372852

Zeus Capital Limited

Darshan Patel / George Duxberry                                             0203 829 5000