Transaction in own shares Ashtead Group plc (the "Company") announces that on 5th June 2025 it purchased for Treasury the following number of its ordinary shares of10 pence each pursuant to its up to$1.5bn share repurchase programme, details of which were announced on 10th December 2024. Description of shares: Ashtead Group plc - ordinary shares of10 pence Number of Shares repurchased: 86,846 Shares Date of transaction: 5th June 2025 Average price paid per Share:4,301 pence Lowest price paid per Share:4,252 pence Highest price paid per Share:4,344 pence Broker: Barclays Bank PLC Following the purchase of these shares, the remaining number of ordinary shares in issue will be 429,259,474 (excluding Treasury shares), and the company will hold 22,095,359 ordinary shares in Treasury. The figure of 429,259,474 may be used by shareholders (and others with notification obligations) 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 Disclosure and Transparency Rules. In accordance with Article 5(1)(b) of Regulation (EU) No 596/2014 (the Market Abuse Regulation), detailed information about the individual purchases is attached to this announcement. Ashtead Transaction Summary 5 June 25.pdf (https://mb.cision.com/Public/22320/4160051/b319702f5e3b8ef1.pdf) For further information, please contact: Ashtead Group plc Will Shaw, Director of Investor Relations +44 (0)20 7726 9700 This information was brought to you by Cision http://news.cision.com https://news.cision.com/ashtead-group-plc/r/transaction-in-own-shares,c4160051 The following files are available for download: https://mb.cision.com/Public/22320/4160051/b319702f5e3b8ef1.pdf Ashtead Transaction Summary 5 June 25