Press release

Paris, 31 July 2026

INFORMATION CONCERNING THE TOTAL NUMBER

OF VOTING RIGHTS AND SHARES IN THE SHARE CAPITAL

AS OF 31 MAY 2026

In accordance with articles L. 233-8 II of the French Commercial Code (“Code de commerce”) and 223-16 of the General Regulations of the French Financial markets authority (“Règlement général de l’Autorité des marchés financiers”).

1 Including 256,615 new shares issued in May 2026 in relation to the bond financing announced on 13 April 2026 (Cf. Press release dated 13 April 2026)

About LightOn

Founded in Paris in 2016, and the first European AI company listed on Euronext Growth, LightOn develops an enterprise AI platform designed to enable organizations to connect cutting-edge AI to their sensitive data. LightOn offers an integrated architecture built for large-scale production deployment, robust, efficient, and secure, allowing organizations to industrialize use cases in regulated environments. LightOn’s solutions are intended in particular for the finance, industrial, healthcare, defense, and public sectors.

LightOn is listed on Euronext Growth® Paris (ISIN: FR0013230950, ticker: ALTAI-FR). The company is eligible for PEA and PEA-PME investment schemes and has been recognized as an “Innovative Company” by Bpifrance. To learn more :  https://www.lighton.ai  

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