3 February 2022

S4 Capital plc

("S⁴Capital" or the "Company")

TR-1: Standard form for notification of major holdings

 1. Issuer Details

ISIN

Issuer Name

UK or Non-UK Issuer

2. Reason for Notification

3. Details of person subject to the notification obligation

Name

City of registered office (if applicable)

Country of registered office (if applicable)

4. Details of the shareholder

Full name of shareholder(s) if different from the person(s) subject to the notification obligation, above

City of registered office (if applicable)

Country of registered office (if applicable)

5. Date on which the threshold was crossed or reached

6. Date on which Issuer notified

7. Total positions of person(s) subject to the notification obligation

8. Notified details of the resulting situation on the date on which the threshold was crossed or reached

8A. Voting rights attached to shares

8B1. Financial Instruments according to (DTR5.3.1R.(1) (a))

8B2. Financial Instruments with similar economic effect according to (DTR5.3.1R.(1) (b))

9. Information in relation to the person subject to the notification obligation

10. In case of proxy voting

Name of the proxy holder

The number and % of voting rights held

The date until which the voting rights will be held

11. Additional Information

12. Date of Completion

13. Place Of Completion

Enquiries:

S⁴ Capital plc                                        Tel: +44 (0)20 3793 0003

Sir Martin Sorrell (Executive Chairman)

Powerscourt                                         Tel: +44 (0)7713 246 126

(PR Adviser to S⁴ Capital plc)

About S⁴Capital

S⁴Capital (SFOR.L) is the tech-led, new age/new era digital advertising and marketing services company, established by Sir Martin Sorrell in May 2018.

Its strategy is to build a purely digital advertising and marketing services business for global, multinational, regional, local clients and millennial-driven influencer brands. This will be achieved by integrating leading businesses in three practice areas: content, data&digital media and technology services, along with an emphasis on "faster, better, cheaper" executions in an always-on consumer-led environment, with a unitary structure.

Digital is by far the fastest-growing segment of the advertising market. S⁴Capital estimates that in 2021 digital accounted for approximately 60% or $420-450 billion of total global advertising spend of $700-750 billion (excluding over $500 billion of trade promotion marketing, the primary target of the Amazon advertising platform) and projects that by 2022 total global advertising spend will expand to $770-850 billion and digital's share will grow to approximately 65% and by 2024 to approximately 70%, accelerated by the impact of covid-19.

In 2018, S⁴Capital combined with MediaMonks, the leading AdAge A-listed creative digital content production company led by Victor Knaap and Wesley ter Haar, and then with MightyHive, the market-leading digital media solutions provider for future thinking marketers and agencies, led by Peter Kim and Christopher S. Martin. Since then, MediaMonks and MightyHive have combined with more than 25 companies across content, data&digital media and technology services. For a full list, please see the S⁴Capital website. In August 2021, S⁴Capital launched its unitary brand by merging MediaMonks and MightyHive into Media.Monks, represented by a dynamic logo mark that features MightyHive's iconic hexagon. As the operational brand, Media.Monks underpins S⁴Capital's agility, digital knowledge and efficiency and is the next step in delivering on its foundational promise to unify content, data&digital media and technology services.

Victor Knaap, Wesley ter Haar, Pete Kim, Christopher Martin, Mary Basterfield and Scott Spirit all joined the S⁴Capital Board as Directors. The S⁴Capital Board also includes Rupert Faure Walker, Paul Roy, Daniel Pinto, Sue Prevezer, Elizabeth Buchanan, Naoko Okumoto, Margaret Ma Connolly, Peter Rademaker and Miles Young.

The Company now has well over 7,500 people in 33 countries across the Americas, Europe, the Middle East and Africa and Asia-Pacific and a current market capitalisation of approximately £3.0 billion (c.$4.0 billion) and would rank inside the FTSE 150. It achieved Unicorn status in a little over one year, unique in the advertising and marketing services industry. Sir Martin was CEO of WPP for 33 years, building it from a £1 million "shell" company in 1985 into the world's largest advertising and marketing services company with a market capitalisation of over £16 billion on the day he left. Today its market capitalisation is £13.8 billion. Prior to that Sir Martin was Group Financial Director of Saatchi & Saatchi Company Plc for nine years.