The Australian Stock Exchange, which monitors trading activity...

The Australian Stock Exchange, which monitors trading activity and forwards any concerns to the Australian Securities & Investments Commission for investigation, has been cracking down on market leaks in the face of booming share prices and rampant takeover activity.

In the past three months alone, takeover bids for Promina, Rebel, Hardman and Alinta Infrastructure Holdings have been preceded by share price runs in the immediate lead-up to the bid announcements, adding weight to suggestions some investors are profiting on inside information.

full article:
http://www.thewest.com.au/default.aspx?MenuID=33&ContentID=16100