Waiting for something to happen...?? Its been happening! Look at the last year:
8/23/12 --- share price = $2.80
11/23/12 --- share price = $3.47 - Quarterly gain of 24%
2/25/13 --- share price = $3.65 - Qtrly gain of 5%, 6 month gain of 30%
5/23/13 --- share price = $5.08 - Qtrly gain of 39%, 9 month gain of 81%
8/23/13 --- share price = $6.66 - Qtrly gain of 31%, one year gain of 138%
..... and so much of the company's news has yet to come. Looking at those (consistent) quarterly gains, I sure wouldn't bank on making money being short.
And even just a repeat of this performance results in a share price of over $15.
Actually at about 30% to borrow the shorts are not profiting much if at all. Also FYI - AMPE is not interested in selling the entire company. Zertane probably for sale and then either optina or Ampion but they probably can keep one with a marketing partnership. If you doubt this give them a call.