<div id="readability-page-1"><div>RNS Number : 2666K Entain PLC 04 December 2025 TR-1: Standard form for notification of major holdings1. Issuer DetailsISINIM00B5VQMV65Issuer NameENTAIN PLCUK or Non-UK IssuerNon-UK2. Reason for NotificationAn acquisition or disposal of voting rights3. Details of person subject to the notification obligationNameThe Capital Group Companies, Inc.City of registered office (if applicable)Los AngelesCountry of registered office (if applicable)USA4. Details of the shareholderFull name of shareholder(s) if different from the person(s) subject to the notification obligation, aboveCity of registered office (if applicable)Country of registered office (if applicable)5. Date on which the threshold was crossed or reached02-Dec-20256. Date on which Issuer notified03-Dec-20257. Total positions of person(s) subject to the notification obligation<div><table><tbody><tr><td></td><td>% of voting rights attached to shares (total of 8.A)</td><td>% of voting rights through financial instruments (total of 8.B 1 + 8.B 2)</td><td>Total of both in % (8.A + 8.B)</td><td>Total number of voting rights held in issuer</td></tr><tr><td>Resulting situation on the date on which threshold was crossed or reached</td><td>10.012237</td><td>0.000000</td><td>10.012237</td><td>64038533</td></tr><tr><td>Position of previous notification (if applicable)</td><td>9.942983</td><td>0.000000</td><td>9.942983</td><td></td></tr></tbody></table></div>8. Notified details of the resulting situation on the date on which the threshold was crossed or reached8A. Voting rights attached to shares<div><table><tbody><tr><td>Class/Type of shares ISIN code(if possible)</td><td>Number of direct voting rights (DTR5.1)</td><td>Number of indirect voting rights (DTR5.2.1)</td><td>% of direct voting rights (DTR5.1)</td><td>% of indirect voting rights (DTR5.2.1)</td></tr><tr><td>IM00B5VQMV65 Common Stock</td><td></td><td>64038533</td><td></td><td>10.012237</td></tr><tr><td>Sub Total 8.A</td><td colspan="2">64038533</td><td colspan="2">10.012237%</td></tr></tbody></table></div>8B1. Financial Instruments according to (DTR5.3.1R.(1) (a))<div><table><tbody><tr><td>Type of financial instrument</td><td>Sub Total 8.B1</td></tr><tr><td>Expiration date</td><td colspan="2"></td></tr><tr><td>Exercise/conversion period</td><td></td></tr><tr><td>Number of voting rights that may be acquired if the instrument is exercised/converted</td><td></td></tr><tr><td>% of voting rights</td></tr></tbody></table></div>8B2. Financial Instruments with similar economic effect according to (DTR5.3.1R.(1) (b))<div><table><tbody><tr><td>Type of financial instrument</td><td>Sub Total 8.B2</td></tr><tr><td>Expiration date</td><td colspan="3"></td></tr><tr><td>Exercise/conversion period</td><td></td></tr><tr><td>Physical or cash settlement</td><td></td></tr><tr><td>Number of voting rights</td></tr><tr><td>% of voting rights</td></tr></tbody></table></div>9. Information in relation to the person subject to the notification obligation2. Full chain of controlled undertakings through which the voting rights and/or the financial instruments are effectively held starting with the ultimate controlling natural person or legal entities (please add additional rows as necessary)<div><table><tbody><tr><td>Ultimate controlling person</td><td>Name of controlled undertaking</td><td>% of voting rights if it equals or is higher than the notifiable threshold</td><td>% of voting rights through financial instruments if it equals or is higher than the notifiable threshold</td><td>Total of both if it equals or is higher than the notifiable threshold</td></tr><tr><td>The Capital Group Companies, Inc.</td><td>Capital Research and Management Company</td><td>9.812681</td><td></td><td>9.812681%</td></tr><tr><td>The Capital Group Companies, Inc.</td><td>Capital International, Inc.</td><td></td><td></td><td></td></tr><tr><td>The Capital Group Companies, Inc.</td><td>Capital International Sarl</td><td></td><td></td><td></td></tr></tbody></table></div>10. In case of proxy votingName of the proxy holderThe number and % of voting rights heldThe date until which the voting rights will be held11. Additional InformationThe Capital Group Companies, Inc. (&#34;CGC&#34;) is the parent company of Capital Research and Management Company (&#34;CRMC&#34;) and Capital Bank &amp; Trust Company (&#34;CB&amp;T&#34;). CRMC is a U.S.-based investment management company that serves as investment manager to the American Funds family of mutual funds, other pooled investment vehicles, as well as individual and institutional clients. CRMC and its investment manager affiliates manage equity assets for various investment companies through three divisions, Capital Research Global Investors, Capital International Investors and Capital World Investors. CRMC is the parent company of Capital Group International, Inc. (&#34;CGII&#34;), which in turn is the parent company of six investment management companies (&#34;CGII management companies&#34;): Capital International, Inc., Capital International Limited, Capital International Sàrl, Capital International K.K., Capital Group Private Client Services Inc, and Capital Group Investment Management Private Limited. CGII management companies primarily serve as investment managers to institutional and high net worth clients. CB&amp;T is a U.S.-based registered investment adviser and an affiliated federally chartered bank.Neither CGC nor any of its affiliates own shares of the Issuer for its own account. Rather, the shares reported on this Notification are owned by accounts under the discretionary investment management of one or more of the investment management companies described above.12. Date of Completion03-Dec-202513. Place Of CompletionLos AngelesThis 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 HOLVZLBBELLZFBF</div></div>

Entain PLC has announced a notification of major holdings by The Capital Group Companies, Inc., which has increased its voting rights to 10.012237% as of December 2, 2025. The notification was made due to an acquisition or disposal of voting rights. The Capital Group Companies, Inc. is the parent company of several investment management firms, and the shares are owned by accounts under their discretionary management.

REG - Entain PLC - TR1: Notification of Major Holdings