That's a question I bet some large shareholders will ask the SEC to look into. Probably explains the declines earlier in all the other FLDs too. Those will be harder to prove since the sellers were likely not insiders in any way on the other FLDs.
My guess is that the courts, likely civil and maybe criminal, will be studying this question for quite a while.
The only thing necessary for the triumph of evil is for good men to do nothing. EDMUND BURKE (and others)