EQS-CMS: CANCOM SE: Release of a capital market information

Share buyback / 13th Interim Report – Announcement pursuant to Art. 5 para. 1 lit. b) and para. 3 of Regulation (EU) No. 596/2014 in conjunction with Art. 2 para. 2 and 3 of Delegated Regulation (EU) No. 2016/1052

In the period from 15 December 2025 up to and including 19 December 2025, CANCOM SE acquired a total of 80,571 treasury shares as part of the share buyback program, of which the start date 22 September 2025 was announced in the ad hoc announcement of 09 September 2025 and the announcement of 18 September 2025 in accordance with Article 5 para. 1 a) of Regulation (EU) No. 596/2014 in conjunction with Article 2 para. 1 of Delegated Regulation (EU) No. 2016/1052 and Article 2 para.1 of Delegated Regulation (EU) No. 2016/1052.

The shares were acquired as follows:

This brings the total volume of treasury shares repurchased by CANCOM SE under the share buyback program since 22 September 2025 to 1,044,402.

Further information on the transactions pursuant to Art. 5 para.1 lit. b) and para. 3 of Regulation (EU) No. 596/2014 in conjunction with. Art. 2 para. 2 and 3 of Delegated Regulation (EU) No. 2016/1052 is published on the internet at https://investors.cancom.com/share-buyback-2025/.

The treasury shares were acquired by a credit institution commissioned by CANCOM SE exclusively via the stock exchange in electronic trading on the Frankfurt Stock Exchange (XETRA).

Munich, Germany, 22 December 2025

CANCOM SE

The Executive Board