A have a feeling that this movement may be based on an unannounced or rumored deal with Novartis which should be set to take place soon.
Perhaps there is even thoughts of a buyout (although if memory serves me correctly, AXK refused a buyout years ago).
They have a product that everyone would love to market, and with proven results pointing towards success in early and fast detection as has been presented over the last few weeks, the potential $ behind this company has skyrocketed.
Every hospital in America would want a Baccel system which could detect superbugs BEFORE symptoms are even showing as was presented at the ATS conference. Even if the system was sold for only $50k each you would be looking at a massive amount of cash on top of zero debt.