"Property company Mapeley, which announced takeover talks at the end of last month, yesterday said these were continuing. But it added that "there can be no certainty any offer will be made", which was enough to spook the market and send the shares 146p lower to £16.20. Traders believe the potential bidder is US investment group Fortress, which already owns nearly 50%."
http://www.guardian.co.uk/business/2008/mar/18/marketforces