RE:Grant of optionsIt looks like the Directors received their annual grant of options. When they enter it into CEDI, it looks like a transaction. Options are granted at $0.86, which I belive was the price of the last share offering. My best guess.
Otherwise, if insiders are exercizing options at $0.86 it's because they were about to expire and they felt there is a good chance the stock is going to climb. That they all did it tells me that's not the likely reason. The annual grant is a more likely explanation.
Pieridae has typical ownership requirements for directors and senior officers. I belive their minimum ownership requirement is 2x salary. Insiders might exercize options that are out of the money as away to meet those targets.
In any event, it's garbage stock. The company has liabilities in the %34 MM range, including accounts payable of nearly $100 MM. I have no idea why they're still in business.