The Essen-based company said the name change will likely take effect at the beginning of July, when it has been listed in the commercial registry.
Under the new name Arcandor, the company will continue to operate its brands, including the Thomas Cook travel operator, Karstadt department stores and Quelle mail order.
The shareholders also approved the proposal that the company should switch its financial accounting calendar to a year ending Sept 30, taking effect this year.
Shares of KarstadtQuelle were up 0.18 percent to 27.94 EUR (US$37.79).
Putin's official spokesman Dmitry Peskov commented on remarks in the US media about failures in launching nuclear-capable missiles in Russia
The Buk system that shot down MH17 belonged to the 53rd SAM missile brigade of the Russian Ministry of Defense, investigators say after looking at a few pictures on the net
It has long been understood that the West has been trying to subject Russian borders to total control. We have not seen such activity even during the Cold War