Ipsos: Monthly declaration of shares and voting rights - September 2025

Group 1 - The total number of shares as of September 30, 2025, is 43,203,225 [1] - The total voting rights associated with these shares is 48,979,191, while the exercisable voting rights amount to 48,925,369 [1] - The theoretical number of voting rights includes all shares, even those with suspended voting rights, as per Article 223-11 of the AMF general regulation [1][2] Group 2 - The information regarding voting rights is also accessible in the "Regulated Information" section of the Ipsos website [2]