STOCKHOLM (Reuters) - Qatar on Tuesday filed for regulatory approval to take a bigger stake in OMX and said it was considering taking over the Nordic firm, raising the prospect of a bidding war with ...

On August 5, 2010, Michael Casey, a director of NASDAQ OMX, filed a Form 4 with the United States Securities and Exchange Commission (the "SEC") to report the cash exercise of stock options previously ...

STOCKHOLM, Feb 1 (Reuters) - Borse Dubai, which has bid $4.9 billion for stock exchange owner and operator OMX , said on Friday it would register a supplement to its bid after OMX published it ...