REGULATED PRESS RELEASE

from ALTEN (EPA:ATE)

Share Buyback program

PRESS RELEASE

In Boulogne-Billancourt, on May 5, 2026
6:40 PM

Sensitivity: C1-Internal

Share Buyback program

As part of its value-creating capital allocation strategy for its shareholders, ALTEN has today granted an investment services provider a mandate to implement a share buyback program covering up to 7% of the Company’s share capital, in accordance with the authorizations granted by the Combined General Meeting of June 12, 2025, with a view to the cancellation of the repurchased shares.

ALTEN reserves the right to suspend the program at any time, depending on market conditions or the implementation of its investment strategy.

About ALTEN

For more information: www.alten.com/investisseurs
Journalists’ details: alten@hopscotch.fr

As a European Leader in Engineering and Technology Consulting (ETC), ALTEN carries out design and research projects for Technical and IT divisions of major clients in industry, telecoms and services.

ALTEN’s stock is listed in compartment A of the Euronext Paris market (ISIN FR000001946); it is part of the SBF 120, the IT CAC 50 index and MIDCAP100, and is eligible for the deferred Settlement Service (SRD).

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