LISI S.A.

Regulatory Filings • Dec 15, 2025

LISI joins the SBF 120 and CAC Mid 60 indices

Paris – December 15, 2025 – LISI Group announces that it has been included in the SBF 120 index and has joined the CAC Mid 60 index, following the quarterly review by the Scientific Council of Euronext Paris Indices.

The SBF 120 index is one of the Paris Stock Exchange's flagship indices, comprising the top 120 stocks listed on Euronext Paris in terms of liquidity and market capitalization. The CAC Mid 60 index comprises 60 companies of national and European importance. It represents the 60 largest French market capitalizations after the CAC 40 and CAC Next 20.

As part of the quarterly review of the Euronext Paris indices, the Scientific Index Committee has decided to include LISI in the SBF 120 and CAC Mid 60 indices. This decision will be implemented on Friday, December 19, 2025, after the market closes, and will take effect on Monday, December 22, 2025.

"We are proud to have joined the Euronext SBF 120 and CAC Mid 60 indices, which marks a new milestone for LISI as a listed company," said Emmanuel Viellard, CEO of LISI Group. "This recognition is a strong testament to the financial markets' continued confidence in our strategic vision and our ability to implement it."

Contact

Emmanuel VIELLARD Phone: +33 (0)3 84 57 00 77

Email: emmanuel.viellard@lisi-group.com

Website: www.lisi-group.com