something you might find interesting about the CHC stock is that in reality there is only 21% of the stock available for trading, 79% is controlled by First Reserve and CD & R .
If the new CEO just bought 200,000 as was mentioned then there is now less then 21% of the stock available for trading, probably part of his contract as CEO to purchase stock.
My opinion it does not look like a attractive stock for investors to buy with so much of the stock locked up.