News: IMF IMF Bentham announces funding of class action against against UGL Ltd, page-13

$3 of the $4 drop can be attributed to the $3/share dividend announced on the sale of DTZ to TPG/PAG consortium so if you are to make some estimations around claim value using a market cap drop then $165m.

I'm quite sure the claim won't be anywhere near as black and white though. Technically, shareholders are better off that company held off on the Ichthys update until after DTZ sale as in all likelihood they would have received less than $3/share in dividends.

It seems to me that management had shareholders interests at heart when they decided to ignore their ongoing disclosure obligations.