Half-year liquidity contract statement on December 31st, 2025

Core Insights - Assystem S.A. is a leading independent nuclear engineering company focused on accelerating the energy transition, with 60 years of experience in regulated sectors [3][4] - The company operates in 13 countries with a workforce of 8,000 experts dedicated to developing low carbon electricity and clean hydrogen solutions [4] - Assystem is recognized as one of the top three nuclear engineering groups globally and is part of various Euronext indices [4][5] Financial Summary - As of December 31, 2025, the liquidity account showed 10,903 shares valued at €842,698.88, with a total of 1,520 buy-side executions and 1,528 sell-side executions [6] - The traded volume for the buy side during the semester was 43,079 shares for €1,872,571.29, while the sell side had 43,617 shares for €1,908,637.73 [6] - Compared to the previous half-year statement on June 30, 2025, there was a decrease in the number of shares from 11,441 to 10,903 and an increase in value from €802,309.97 to €842,698.88 [6]