Proximus SA

Transaction in Own Shares • Dec 8, 2025

Press Release

Brussels, 08 December 2025, 18:00 local time Regulated information

Repurchase of shares in the context of the liquidity contract

In the framework of the liquidity contract (see press release dated Mar. 1st, 2016), Proximus announces today that Kepler-Cheuvreux on behalf of Proximus has bought 164,513 own shares during the period between 01 December 2025 and 05 December 2025 on Euronext Brussels.

During the same period, Kepler-Cheuvreux on behalf of Proximus has sold 156,994 own shares and consequently this results in a net increase of 7,519 own shares.

Purchase operations details per day

Date	Number of shares	Average price (€)	Highest price (€)	Lowest price (€)	Amount (€)
1-Dec-25	71.512	7,46	7,53	7,38	533.480
2-Dec-25	53.000	7,46	7,51	7,36	395.380
3-Dec-25
4-Dec-25
5-Dec-25	40.001	7,14	7,21	7,06	285.607
Total	164.513	7,38	7,53	7,06	1.214.467

Sell operations details per day

Date	Number of shares	Average price (€)	Highest price (€)	Lowest price (€)	Amount (€)
1-Dec-25	88.754	7,50	7,64	7,43	665.655
2-Dec-25	62.269	7,47	7,52	7,40	465.149
3-Dec-25
4-Dec-25
5-Dec-25	5.971	7,16	7,17	7,15	42.752
Total	156.994	7,48	7,64	7,15	1.173.557

The summary of the transactions realized in the framework of the liquidity contract launched on March 1st, 2016 is available on the corporate website.

Currently, Proximus owns 14,960,250 own shares or 4.426% of the total shares outstanding.

More info

• https://www.proximus.com/en/investors
• Press Relations : Haroun Fenaux, telephone +32 476 60 03 33, email press@proximus.com
• Investor Relations : Nancy Goossens, telephone +32 2.202 82 41, email investor.relations@proximus.com
• About the Proximus Group