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Immeuble “Le Clemenceau 1” - 205, avenue Georges Clemenceau - 92024 Nanterre Cedex - France
+33 (0)1 41 37 41 37 - www.neurones.net - Follow NEURONES:

A Société Anonyme company with a share capital of €9,731,486.40 - R.C.S. NANTERRE B 331 408 336 - VAT Code FR 46331408336 - Siret No. 331 408 336 00021 – APE 6202A

Nanterre, April 20, 2026

Declaration of transactions on treasury shares
(period from April 13 to 17, 2026)

As part of the share buyback program authorized by the General Meeting of June 5, 2025 and entrusted to CIC, NEURONES made the following purchases between April 13 and 17, 2026 (ISIN code FR0004050250):

As of April 17, 2026, excluding the liquidity contract, NEURONES now holds 381,250 of the 24,328,716 shares comprising the company's capital (i.e., 1.57%).

All press releases relating to the share buyback program are published in the "Regulated Information" section (under "Weekly declarations of the share buyback transactions" and "Share buyback programs") of the company's website.

About NEURONES

With over 7,300 experts, and ranking among the French leaders in consulting and digital services, NEURONES helps large companies and organizations implement their digital projects, embrace AI, transform their IT infrastructures and adopt new uses.

Euronext Paris (compartment A - NRO) – Euronext Tech Leaders – DSS – PEA-PME eligible
www.neurones.net

Press Relations:

O'Connection
Julia Philippe-Brutin
Tel.: +33 (0)6 03 63 06 03
jpbbrutin@oconnection.fr

NEURONES
Matthieu Vautier
Tel.: +33 (0)1 41 37 41 37
rp@neurones.net

Investor Relations:

NEURONES
Paul-César Bonnel
Tel.: +33 (0)1 41 37 41 37
investisseurs@neurones.net

Immeuble “Le Clemenceau 1” - 205, avenue Georges Clemenceau - 92024 Nanterre Cedex - France
+33 (0)1 41 37 41 37 - www.neurones.net - Follow NEURONES:

A Société Anonyme company with a share capital of €9,731,486.40 - R.C.S. NANTERRE B 331 408 336 - VAT Code FR 46331408336 - Siret No. 331 408 336 00021 - APE 6202A