Manipulation my footTSX is not a very liquid exchange for TH. If you want movement you need to be on an exchange that as visibility. Haven't you notice that whenever the American exchange is closed the stock is dead on the TSX. It doesn't take much to shake the tree in one direction or the other.
One can ask the question why Theratechnology doesn't move to a more fluid market place were a true realistic price will be set and with volume to boot. If there is manipulation here, one could also speculate that it could come from management itself.