K&ET there's a real turd, I bet something grows out of it though seems the board is a non-stop $hit show and the CEO and his mom pretty flagrant, I don't see them stopping now.
As for the Form4's, I felt it would be interesting to simply see if there's any correlation between form 4's and price overall (given most are D's), then split data by A vs D, then you could even look at the amount of shares bought of sold in the form as a percentage of either some avg volume or OS count... compare pricing a few days prior to the form, the day after the form is released and maybe one of two data points after.
Just thinking out loud here...
Only invest what you want to lose.