To be fair if they need to issue the extra shares in the next 3 - 6 months, its only because they still have no other revenue from actual contracts. Don't think that will be the case!!
Hope so some of the averages on here are frightening listening to different post. If you get in to a position to take out your stake and still have a good holding do it. Then any losses are split between you and the tax man and there is no stress involved.
That's great good for you, at the end of the day trust your own instincts, you bought in and hopefully you will look back in that mirror and smile like a Cheshire cat. I'm good thanks.