1 February 2024

ASCENTIAL PLC

COMPANY SECRETARY CHANGE

Ascential plc ("Ascential") announces that Louise Meads, Group Company Secretary since February 2017, is to step down and be succeeded with effect from 1 February 2024 by Naomi Howden, who is currently Deputy Company Secretary. The board would like to thank Louise for her excellent service and contribution through a period of significant change in the business and wish her well for the future.

About Ascential plc:

Ascential takes the world's leading brands to the heart of what's next for their industries. We do this through our events, intelligence products and advisory services. Our 700 people serve a global customer base from more than 100 countries in the large and growing Marketing and Financial Technology sectors. Ascential is listed on the London Stock Exchange (LON: ASCL). ascential.com

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IMPORTANT NOTICES

The person responsible for arranging the release of this announcement on behalf of Ascential is Naomi Howden, Company Secretary.

This announcement contains "forward-looking statements" which includes all statements other than statements of historical fact, including, without limitation, those regarding the Company's financial position, business strategy, plans and objectives of management for future operations, or any statements preceded by, followed by or that include the words "targets", "believes", "expects", "aims", "intends", "will", "may", "anticipates", "would, "could" or similar expressions or negatives thereof. Such forward-looking statements involve known and unknown risks, uncertainties and other important factors beyond the Company's control that could cause the actual results, performance or achievements of the Company to be materially different from future results, performance or achievements expressed or implied by such forward-looking statements. Such forward-looking statements are based on numerous assumptions regarding the Company's present and future business strategies and the environment in which the Company will operate in the future. These forward-looking statements speak only as at the date of this announcement.

Neither the Company nor its affiliates undertakes or is under any duty to update this announcement or to correct any inaccuracies in any such information which may become apparent or to provide you with any additional information, other than any requirements that the Company may have under applicable law or the Listing Rules, the Prospectus Regulation Rules, the Disclosure Guidance and Transparency Rules or the Market Abuse Regulation MAR (EU No. 596/2014) as it forms part of domestic law by virtue of the European Union (Withdrawal) Act 2018). To the fullest extent permissible by law, such persons disclaim all and any responsibility or liability, whether arising in tort, contract or otherwise, which they might otherwise have in respect of this announcement. The information in this announcement is subject to change without notice.