Kinea, the alternative asset management subsidiary of Brazil-based financial services group Itaú, has agreed to purchase a 48 percent stake in Quartier Participações, a Brazil-based holding company with interests in textbook publishing and digital education platforms, including Grupo A Educação. Quartier reportedly plans to use the funds to purchase shares in Artmed Panamericana Editora, a Brazil-based educational product developer, and to develop its online learning technologies. Additional financial details of the transaction were not disclosed.