I have a huge holding now of AMBS and I am definitely long term. I have invested in another company that used to trade on the OTC that is biotech but now trades on the NASDAQ RXII (Rxi Pharmaceuticals) and I believe like it AMBS will be a long term hold.
To people complaining about the uplisting I have a different approach that may or may not happen but that I would like to see. I would prefer if the company waits till the stock price rises on its own then do a reverse stock split if need be. Even better I would like to see the share price rise on its own without a reverse split. Anyways I like the fact that the company is attempting to launch Lympro diagnostic testing as a means for generating revenue now while developing other products in the clinic.
News 
Market Data 
Discover 
