Transaction in own shares. Ashtead Group plc (the "Company") announces that on 17thJanuary 2020 it purchased for Treasury the following number of its ordinary shares of 10 pence each pursuant to its £500m share repurchase programme, details of which were announced on 18 June 2019. Description of shares: Ashtead Group plc - ordinary shares of 10 pence. Following the purchase of these shares, the remaining number of ordinary shares in issue will be 453,194,833 (excluding Treasury shares), and the company will hold 1,000,000 ordinary shares in Treasury. The figure of 453,194,833 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.