Peaked in 2007, all downhill from there. Currently around six US cents a share. Disappearance of MH370 and shooting down of MH17 aren't especially obvious on this monthly chart. AirAsia's chart looks a little better.
UPDATE Aug 8, 2014 5:40 AM GMT-0400
“Malaysian Airline System Bhd. (MAS) will be delisted after sovereign wealth fund Khazanah Nasional Bhd. offered to buy out minority shareholders in a restructuring plan for the national carrier that suffered two disasters this year.”