Total Voting Rights

27 February 2026

Grafton Group plc (the 'Company') - Voting Rights and Capital

In conformity with Regulation 20 of the Transparency (Directive 2004/109/EC) Regulations 2007, the Company announces that:

The total number of Ordinary Shares of €0.05 each in issue on 27 February 2026 is 191,830,588. Each Ordinary Share carries one vote. The Company holds 500,000 Ordinary Shares in treasury. Therefore, the total number of voting rights is 191,330,588.

The above figure of 191,330,588 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 Transparency (Directive 2004/109/EC) Regulations 2007 and the Transparency Rules.

Rebecca McAleavey

Deputy Company Secretary

Grafton Group plc

Ph: +353 1 216 0600