""""The status of Teva’s ANDA is perhaps the biggest uncertainty for MNTA investors and is arguably the main reason the valuation is as low as it is."""""
Looking at the "timing" of MNTA's recent stock price, I'll guess it's the capital versus burn rate that's more responsible of the swoon in the stock price.
Every stock was re-evalulated the day Lehman Burned. The cash rich kept their heads up while the others got their heads chopped off.