Movers Roundup: Ivanhoe Mines, Vringo

The Associated Press

Among the stock activity stories for Monday, April 16, from AP Business News:

â¿¿ Ivanhoe Mines Ltd. shares tumbled to the lowest levels in more than two years on after the government in Mongolia asked for a suspension in activities at a coal mining company that Ivanhoe partially owns.

â¿¿ Shares of Vringo Inc. soared after it was revealed that billionaire Mark Cuban had taken a major stake in the ringtone company.

â¿¿ Cobalt International Energy Inc. denied reports that Angolan officials concealed their stakes in an oil venture linked to the company as shares tumbled.

Copyright 2011 Associated Press. All rights reserved. This material may not be published, broadcast, rewritten or redistributed.

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