This two-page document covers any buy-and-sell orders on the open market, as well as the exercise of company stock options. A Form 4 is mandatory within two business days starting from the end of the day the material transaction occurred. This filing is related to Form 3 and the Form 5, which also cover changes to the company insider holdings.

I'm thinking they excersied their option because of news hopefully coming out tomorrow because they know it's going to be an upward rocket. IMHO. I hope Im right.