Those shares are a total of 6 million anyway. Right now these are retail day traders who jumped in for a big gain taking the losses. It will be up big either tomorrow or most likely Monday as tomorrow is Friday.
PLUG did the same thing a few years back. There was a deal and it went from $0.40 to $3+. Then it came crashing down and every one sold. I held onto it but casually put the GTC sell order at $3 or $5. The next thing you know it went to $12. I got sold out.
This will be above $5 very soon, IMHO. Not worried at all.