It means he has over a million shares, and doesn't make enough to,or feel the need to buy more at this point. Yes I am squirming a bit as anyone who is heavily weighted here should be at this point. I will feel a lot "smarter" when they get rolling- but no one, not even you and your humility could have guessed they would be at .80 a year after cargo approval.
Disclosure: I don't have an agenda here, or a personal vendetta with Glenn