Hyundai Motor Co's chairman and vice chairman are seeking to raise about $1.25 billion by selling shares of Hyundai Glovis, a person familiar with the matter said, a move that could smooth succession in the family-owned conglomerate. The sale could help vice chairman and heir apparent Chung Eui-sun buy stakes in key units such as Hyundai Motor, Kia Motors Corp and Hyundai Mobis Co Ltd, without subjecting Hyundai Glovis to antitrust regulations governing inter-affiliate transactions, company watchers said.