Disclosure of a transparency notification

Mechelen, July 28, 2023 - Telenet Group Holding NV (“Telenet” or the “Company”) (Euronext Brussels: TNET) hereby discloses, in accordance with article 14, first paragraph of the Law of 2 May 2007, that, on 27 July 2023, it received a transparency notification dated 27 July 2023, from Liberty Global Plc, Liberty Global Broadband I Ltd, Liberty Global Holding B.V., Liberty Global Europe Holding I B.V., Liberty Global Europe Holding II B.V., Liberty Global Belgium Holding B.V. and Telenet Group Holding NV, in accordance with article 6 of the Law of 2 May 2007.

In its notification dated 28 July 2023, received on 27 July 2023, Liberty Global Plc reports that it holds (through the chain of controlled undertakings set forth below) 93.56%¹ of the voting rights in Telenet as a result of the acquisition of shares on 26 July 2023. It has therefore crossed (upwards) the 90% threshold on 26 July 2023.

TRANSPARENCY NOTIFICATION RECEIVED 27 JULY 2023, DATED 27 JULY 2023, THRESHOLD CROSSED 26 JULY 2023

The transparency notification received on 27 July 2023 contains the following information:

• Reason for the notification

Acquisition or disposal of voting securities or voting rights

• Notification by

A parent undertaking or a controlling person

• Persons subject to the notification requirement

• Date on which the threshold is crossed

26 July 2023

• Threshold that is crossed

90%

• Denominator

112,110,000

​^[1] Telenet has been informed that the difference with the number of shares tendered and percentage of ownership included in the press release of 19 July 2023 is due to 369,340 validly tendered shares of employee stock holders that were not taken into account due to third party administrative error.

This document has been released on July 28, 2023, at 6:30 PM CET