Notification of Major Holdings by BlackRock, Inc.

BlackRock, Inc. has reported a change in its major holdings of WPP plc. As of April 1, 2026, the total voting rights held by BlackRock, Inc. amount to 6.88%, a decrease from the previous notification of 9.84%. This includes 4.91% of direct voting rights attached to shares and 1.74% through financial instruments. The notification, dated April 7, 2026, was submitted in accordance with regulatory requirements. The filing details the various subsidiaries and entities through which BlackRock holds these voting rights and financial instruments, indicating a complex ownership structure. The report was completed on April 2, 2026, in London, UK.