PARIS--(BUSINESS WIRE)--Regulatory News: Sopra Steria Group (Paris:SOP) announces the buyback of 1.47% of its share capital, corresponding to 300,000 shares for a total amount of 23 million euros. This acquisition happened in today’s placement organized by Géninfo (Groupe Société Générale) of 1,4 million shares in Sopra Steria Group representing 7.04% of its share capital at a price of 77.25 euros per share for a total amount of 23 million euros. Sopra GMT (Pasquier and Odin families and the hi