I doubt very much they would worry about buying up shares right now. If the buyout is going to happen, the owners, board members etc, know they are going to be millionaires anyway, so why bother. Why the need to talk about issueing shares or buying back shares. This is plain and simple, if it for some reason is a scam, they are selling as much in the open market as they can, if the buyout is for real, they are just going to wait a couple of weeks and collect their millions.