Notification of Major Holdings by Mondrian Investment Partners Limited

This filing reports that Mondrian Investment Partners Limited has crossed a notification threshold regarding its holdings in WPP plc. As of May 22, 2026, the total voting rights held by Mondrian Investment Partners Limited in WPP plc amount to 4.959420%, comprising 4.600380% directly through shares and 0.359040% through financial instruments (ADRs). This represents a decrease from their previous notification, where they held 5.632220% of the voting rights. The notification was made on May 26, 2026, in accordance with regulatory requirements.