Proximus SA

Transaction in Own Shares • Dec 1, 2025

Press Release

Brussels, December 1, 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 150,000 own shares during the period between 25 November 2025 and 28 November 2025 on Euronext Brussels.

During the same period, Kepler-Cheuvreux on behalf of Proximus has sold 255,091 own shares and consequently this results in a net reduction of 105,091 own shares.

Purchase operations details per day

Date	Number of shares	Average price (€)	Highest price (€)	Lowest price (€)	Amount (€)
24-Nov-25	51.000	6,88	6,91	6,85	350.880
25-Nov-25	30.001	6,87	6,90	6,83	206.107
26-Nov-25	5.999	6,84	6,86	6,83	41.033
27-Nov-25	10.000	6,93	6,97	6,90	69.300
28-Nov-25	53.000	7,29	7,35	7,20	386.370
Total	150.000	7,02	7,35	6,83	1.053.690

Sell operations details per day

Date	Number of shares	Average price (€)	Highest price (€)	Lowest price (€)	Amount (€)
24-Nov-25	51.081	6,89	6,94	6,86	351.948
25-Nov-25	32.000	6,89	6,91	6,85	220.480
26-Nov-25	37.619	6,91	6,98	6,85	259.947
27-Nov-25	12.391	6,94	6,98	6,92	85.994
28-Nov-25	122.000	7,33	7,44	7,24	894.260
Total	255.091	7,11	7,44	6,85	1.812.629

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 14,952,731 own shares or 4.424% 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