E.ON SE: Release according to Article 40, Section 1 of the WpHG [the German Securities Trading Act] with the objective of Europe-wide distribution

EQS Voting Rights Announcement: E.ON SE E.ON SE: Release according to Article 40, Section 1 of the WpHG [the German Securities Trading Act] with the objective of Europe-wide distribution 16.12.2025 / 08:28 CET/CEST Dissemination of a Voting Rights Announcement transmitted by EQS News - a service of EQS Group. The issuer is solely responsible for the content of this announcement.

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Notification of Major Holdings

1. Details of issuer

Name:	E.ON SE
Street:	Brüsseler Platz 1
Postal code:	45131
City:	Essen Germany
Legal Entity Identifier (LEI):	Q9MAIUP40P25UFBFG033

2. Reason for notification

X	Acquisition/disposal of shares with voting rights
	Acquisition/disposal of instruments
	Change of breakdown of voting rights
X	Other reason: Equity collateral returned

3. Details of person subject to the notification obligation

Legal entity: DWS Investment GmbH City of registered office, country: Frankfurt am Main, Germany

4. Names of shareholder(s)
holding directly 3% or more voting rights, if different from 3.

5. Date on which threshold was crossed or reached:

12 Dec 2025