5. Some poignant questions about the paucity of open market purchases by insiders need to be fashioned here, as well as questions regarding why share purchases by those they have been collaborating with have not been made. Is there a prohibition on this issue by either or both collaborative parties designed to keep their NDA even more airtight? If not, I would think that the length of time these collaborations have gone would make it impossible to consider such share purchases "insider trading."