At 31 December 2025, the Company's reportable segments were Global Integrated Agencies, Public Relations and Specialist Agencies, which reflected the way in which performance was reviewed and resources were allocated in 2025. The largest reportable segment was Global Integrated Agencies, which accounted for 88% of the Company’s revenues in 2025. The remaining 12% of our revenues were derived from the reportable segments of Public Relations and Specialist Agencies. The Company has a presence in more than 100 countries. It employs approximately 98,655 people. The Company’s ordinary shares are admitted to the Official List of the UK Listing Authority and trade on the London Stock Exchange and American Depositary Shares (which are evidenced by American Depositary Receipts (ADRs) or held in book-entry form) representing deposited ordinary shares are listed on the New York Stock Exchange (NYSE). At 31 December 2025 the Company had a market capitalisation of £3,684 million. The Company’s executive office is located at Sea Containers, 18 Upper Ground, London, United Kingdom, SE1 9GL, Tel: +44 (0)20 7282 4600 and its registered office is located at 22 Grenville Street, St Helier, Jersey, JE4 8PX. 6 A. History and Development of the Company The Company was incorporated in Jersey on 25 October 2012 under the name WPP 2012 plc. On 2 January 2013, under a scheme of arrangement between WPP 2012 Limited (formerly known as WPP plc), the former holding company of the Group, and its shareholders pursuant to Article 125 of the Companies (Jersey) Law 1991, and as sanctioned by the Royal Court of Jersey (the Jersey Court), the Company, being a Jersey incorporated and United Kingdom tax resident company, became the new parent company of the WPP Group and adopted the name WPP plc. In April 2025, the Company acquired 100% of the ordinary share capital of Cognitive Logic Inc. (“InfoSum”), a data collaboration platform. In May 2025, WPP Media replaced GroupM as the name of WPP’s global media company. WPP Media’s agencies Mindshare, Wavemaker and EssenceMediacom continue to provide clients with dedicated teams as brands within WPP Media, leveraging common capabilities, technology and support functions. In February 2026, the Company announced the simplification of its structure into four operating units: WPP Media, WPP Production, WPP Enterprise Solutions and WPP Creative: •WPP Media brings together AI-driven media, data and partnership capabilities to deliver creative personalisation at scale. •WPP Production, which was launched in February 2026, unifies WPP's production capabilities into a single global operating unit, to deliver content at speed and scale. •WPP Enterprise Solutions will bring together customer experience, commerce, CRM, content transformation and technology and data platforms into a unified global operating unit. •WPP Creative will be the home of WPP's iconic agencies including VML, Ogilvy, Burson, AKQA, Landor, Design Bridge and Partners, connected through a unified leadership structure and WPP Open. These changes require a reassessment of the Group’s operating and reportable segments. Discrete financial information is not yet readily available for all four operating units at the date of the publication of this report. Any supplemental revenue data on a standalone operating unit basis will be provided as appropriate. The Company had net payments of £177 million, net proceeds of £313 million and net payments of £138 million for each of the years ended 31 December 2025, 2024 and 2023 respectively, related to acquisitions and disposals, including proceeds on disposal of investments and subsidiaries, contingent consideration payments resulting from acquisitions in prior years and net of cash and cash equivalents disposed. Cash spent on purchases of property, plant and equipment and intangible assets was £186 million, £236 million and £217 million for each of the years ended 31 December 2025, 2024 and 2023, respectively. Cash spent on share repurchases and buybacks was £97 million, £82 million and £54 million for each of the years ended 31 December 2025, 2024 and 2023, respectively. The Company is subject to the informational requirements of the Exchange Act. In accordance with these requirements, the Company files reports and other information with the United States Securities and Exchange Commission. You may read and copy any materials filed with the SEC at http://www.sec.gov that contains reports, proxy statements and other information regarding registrants that file electronically with the SEC. The Company’s Form 20-F is also available on the Company’s website, http://www.wpp.com. B. Business Overview Introduction WPP is organised in three reportable segments: Global Integrated Agencies, Public Relations and Specialist Agencies. Information on our segments is set forth on page 12 of the WPP 2025 Annual Report and incorporated herein by reference to Exhibit 15.1. In February 2026, the Company announced an update to its organisational structure, as noted in Item 4A of this Annual Report on Form 20-F. The Company's reportable segments as described above remained in place during the year ended 31 December 2025. The impact of the change in organisational structure on the Company's operating and reportable segments in 2026 is described in the Accounting Policies section of the consolidated financial statements in Item 18 of this Annual Report on Form 20-F. WPP Head Office The core functions of WPP, with the principal executive office in London, are to develop the strategy of the Company, coordinate the provision of services to cross-company clients, perform a range of cross-company functions in areas such as new business, talent recruitment and development, training, IT, finance, audit, legal and compliance, mergers & acquisitions 7 (M&A), property, sustainability, investor relations and communications, promote best practice in areas such as our agencies’ approach to drive operating efficiencies and monitor the financial performance of WPP’s operating companies. Our Strategic Approach Information on our strategic approach is set forth on pages 10 to 13 of the WPP 2025 Annual Report and incorporated herein by reference to Exhibit 15.1. Clients Information on our clients is set forth on page 20 of the WPP 2025 Annual Report and incorporated herein by reference to Exhibit 15.2. Government Regulation Information on our government regulation is set forth on pages 39 to 42 of the WPP 2025 Annual Report and incorporated herein by reference to Exhibit 15.3. IT Information on our IT is set forth on page 42 of the WPP 2025 Annual Report and incorporated herein by reference to Exhibit 15.3. C. Organizational Structure The Company’s core structure brings together media intelligence, data solutions, creative services, production capabilities, enterprise solutions and strategic counsel on a national, multinational and global scale. It has a presence in more than 100 countries. For a list of the Company’s subsidiary undertakings and their country of incorporation see Exhibit 8.1 to this Form 20-F. D. Property, Plant and Equipment The majority of the Company’s properties are leased, although certain properties which are used mainly for office space are owned. Owned properties are in Latin America (Argentina, Brazil, Mexico, Peru and Puerto Rico), India and in the UK. Principal properties include office space at the following locations: Location Use Approximate square footage 3 World Trade Center, New York, NY WPP Media, VML, AKQA, Grey, Burson, Spec Comm, Specialist PR, Landor, Ogilvy, Hogarth, Design Bridge & Partners, WPP 691,000 636 Eleventh Avenue, New York, NY 100% vacant held for disposition 564,000 Volklinger Strasse, Dusseldorf Grey, Burson, WPP Media, Hogarth, Ogilvy, VML, Thjnk, WPP 407,000 399 Heng Feng Road, Zhabei, Shanghai WPP Media, Ogilvy, Burson, GTB, VML, Hogarth, Peclers, WPP 385,000 26 Rios Rosas Street, Madrid Campus Axicom, Burson, David, Design Bridge & Partners, Financeplus, WPP Media, Hogarth, Ogilvy, VML (including TCK, VML Health, VML MAP), WPP 382,000 The Orb at Sahar, Andheri East, Mumbai WPP Media, Ogilvy, Grey, Landor, VML, Burson, Hogarth, WPP 374,000 3 Columbus Circle, New York, NY 100% vacant held for disposition 340,000 Tower B, DLF Cyber Park, Gurugram WPP Media, Ogilvy, VML, Hogarth, Grey, Burson, AKQA, WPP 340,000 971 Mofarrej Avenue, Sao Paulo VML, Mutato, Marketdata, Match, Corebiz, Enext, Pmweb, DTI, Jussi, Ogilvy, Grey, WMS, i-Cherry, Essence Mediacom, OpenX, Hogarth, Studio X, Burson, Ideal Axicom, WPP 324,000 145-149 rue Anatole France, Levallois-Perret, Paris Axicom, Burson, WPP Media, Hogarth, Landor, Ogilvy, Peclers, VML, WPP 302,000 Via Lodovico il Moro/ Via Giuglio Richard 3, Milan AKQA, Axicom, WPP, Burson, Grey, WPP Media, Hogarth, Landor, Ogilvy, VML Health, VML, WPP 283,000 333 North Green Street, Chicago, IL WPP Media, Ogilvy, VML, Burson, Hogarth, Landor, Spec Comm, Specialist PR, WPP 271,000 8 Location Use Approximate square footage 125 Queens Quay, Toronto WPP Media, VML, Ogilvy, AKQA, Burson, Hogarth, Landor, Spec Comm, WPP 265,000 1 Southwark Bridge Road, London WPP Media 244,000 Libertador Building, Buenos Aires Campus Recently completed construction, currently vacant and being marketed for disposal 240,000 Sea Containers House, Upper Ground, London SE1 VML, WPP, Hogarth, Ogilvy, Design Bridge, Landor 225,000 Bubenska 1, Prague VML, WPP Media, Ogilvy, WPP 206,000 2 Southwark Bridge Road, Rose Court Campus, London WPP Media, Burson, WPP, Grey, Ogilvy, Axicom 181,000 The Company considers its properties, owned or leased, to be in good condition and generally suitable and adequate for the purposes for which they are used. At 31 December 2025, we had approximately 73,000 of our people based in 49 campuses as compared to 2024, when we had approximately 68,000 of our people based in 47 campuses. See note 10 to the consolidated financial statements for a schedule by years of lease payments at 31 December 2025 and 31 December 2024.