Grouping of Shares Prologue: Consolidation Strategy

Prologue has decided to consolidate its shares at a ratio of 100 old shares for 1 new share, effective September 14, 2026. This consolidation, approved by the general meeting with over 99.91% of the vote, aims to improve the image of the group, which is refocusing on its core industrial activities and seeking to optimize its financial ratios.

The transactions will take effect on October 15th with the initial listing of the new shares at a par value of €1. The 100,549,117 existing shares will be exchanged for 1,005,491 new ones. Shareholders must manage their fractional rights themselves before October 14th. After this date, the new shares will be sold, and holders of fractional rights will be compensated on a pro rata basis.

The new Prologue shares will be listed on Euronext Growth Paris, with a modified ISIN code. The ticker symbol, ALPRG, remains unchanged.