<div id="readability-page-1"><div>RNS Number : 1685M WPP PLC 18 December 2025 <ul><li>FOR IMMEDIATE RELEASE</li><li>18 December 2025</li></ul>WPP PLC (&#34;WPP&#34;)Director DeclarationNotification of Director's Other AppointmentWPP announces that Simon Dingemans, Non-Executive Director of WPP has been appointed to the board of directors of Avantor, Inc. , effective from 2 January 2026.This disclosure is made pursuant to the Financial Conduct Authority's Listing Rule 6.4.9R.Balbir Kelly-BislaCompany SecretaryFurther information Media: press@wpp.comInvestors: irteam@wpp.comAbout WPP WPP is the creative transformation company. We use the power of creativity to build better futures for our people, planet, clients and communities. For more information, visit www.wpp.com.ENDThis information is provided by RNS, the news service of the London Stock Exchange. RNS is approved by the Financial Conduct Authority to act as a Primary Information Provider in the United Kingdom. Terms and conditions relating to the use and distribution of this information may apply. For further information, please contact rns@lseg.com or visit www.rns.com.RNS may use your IP address to confirm compliance with the terms and conditions, to analyse how you engage with the information contained in this communication, and to share such analysis on an anonymised basis with others as part of our commercial services. For further information about how RNS and the London Stock Exchange use the personal data you provide us, please see our Privacy Policy. END RDNGPGAUPUPAGCR</div></div>

WPP PLC announces that Simon Dingemans, Non-Executive Director, has been appointed to the board of directors of Avantor, Inc., effective 2 January 2026. This disclosure is made in accordance with the Financial Conduct Authority's Listing Rule 6.4.9R.

REG - WPP PLC - Director Declaration