GRIVALIA PROPERTIES Α.Ε.Ε.Α.Π. Completion of the acquisition of 80% of Nafsika SA, lessee of Asteria in Glyfada, by Grivalia Hospitality See the Press Release.Completion of the acquisition of 80% of Nafsika SA, lessee of Asteria in Glyfada, by Grivalia Hospitality