Complex sentence: In March 2011 these discussions resulted in the holdings being merged, to create a new entity, Veolia Transdev, jointly owned by Veolia and Caisse des dépôts et consignations.
Split into simpler sentences: In March 2011 these discussions resulted in the holdings being merged, to create a new entity, Veolia Transdev. The new company is jointly owned by Veolia Environnement and Caisse des dépôts et consignations.