Proximus SA

Transaction in Own Shares • Jan 5, 2026

Press Release

Brussels, 05 January 2026, 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 45,991 own shares during the period between 29 December 2025 and 02 January 2026 on Euronext Brussels.

During the same period, Kepler-Cheuvreux on behalf of Proximus has sold 93,000 own shares and consequently this results in a net reduction of 47,009 own shares.

Purchase operations details per day

Date	Number of shares	Average price (€)	Highest price (€)	Lowest price (€)	Amount (€)
29-Dec-25	11.893	7,00	7,02	6,96	83.251
30-Dec-25	10.098	7,05	7,06	7,03	71.191
31-Dec-25	24.000	7,09	7,11	7,06	170.160
1-Jan-26
2-Jan-26
Total	45.991	7,06	7,11	6,96	324.602

Sell operations details per day

Date	Number of shares	Average price (€)	Highest price (€)	Lowest price (€)	Amount (€)
29-Dec-25	30.000	7,02	7,06	6,97	210.600
30-Dec-25	24.000	7,08	7,12	7,05	169.920
31-Dec-25	13.004	7,10	7,12	7,09	92.328
1-Jan-26
2-Jan-26	25.996	7,13	7,19	7,09	185.351
Total	93.000	7,08	7,19	6,97	658.200

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 14,931,568 own shares or 4.417% 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