DATAGROUP SE: Conversion to registered shares and inclusion in CASCADE-RS

The bearer shares of DATAGROUP SE (ISIN DE000A0JC8S7) will be converted on

1 June 2026

into registered shares of DATAGROUP SE (ISIN DE000A41YEV7) and included in CASCADE-RS.

Creation of holdings in registered shares

The creation of registered share positions on the relevant conversion date will be carried out by Clearstream Europe AG¹ in the standard processing on 29 May 2026 with value date 1 June 2026 on the custody account balances and positions of pending stock exchange trades.

The positions in the registered shares of DATAGROUP SE are created in unregistered positions (Freier Meldebestand - FMB). Instructions in CASCADE-RS will be possible from 1 June 2026.

Stock exchange trades and securities transfers in the registered shares of DATAGROUP SE will be first processed on 1 June 2026.

Pending instructions

Security transfers against payment that are entered in CASCADE and are pending for settlement will be converted. Security transfers free of payment that are flagged with match status "J" are converted as well.

Note: To ensure smooth settlement processing, clients must avoid a manual conversion, especially matched against payment instructions. CEU will convert securities transfers against payment into the ISIN of the registered shares automatically in the standard processing of 29 May 2026. Modifications and cancellations of instructions in the ISIN of bearer shares are possible at any time until the automatic conversion. It is recommended that instructions in the ISIN of the registered shares are not entered before 1 June 2026.

Unmatched securities transfers free of payment that are stored in CASCADE will automatically be deleted by T2S after 20 business days and must be re-entered by the participants into registered shares, if required.

Registration of shareholders in the share register

The registration of the shareholders in the share register of the issuer is implemented via the depository banks by re-registration in CASCADE-RS using the re-registration type "2" ("other not from purchase"). Information about the notification of the shareholders in the share register can be taken from the "Guidelines for banks on entering shareholder data in CASCADE-RS" (Announcement RS137).

Share register

The share register is managed by Captrace GmbH.

Note about submission planning

Due to the processing capacities in CASCADE-RS, submissions amounting to 10,000 re-registrations or more per transfer must be arranged in advance with Client Services. Within the scope of overall coordination, CEU reserves the right to reject file transfers that have not been arranged in advance.

Reimbursement

For re-registrations that are transmitted between 1 and 5 June 2026, CEU charges a discounted price of EUR 0.30 per position. After this time period, CEU clients will be reimbursed accordingly.

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1. This Announcement is published by Clearstream Europe AG (CEU), registered office at Mergenthalerallee 61, 65760 Eschborn, Germany, registered with the Commercial Register of the District Court in Frankfurt am Main, Germany, under number HRB 7500.