I don't think so. I don't think they have shares available and if they did I'd bet on a private placement. I don't even think it's insiders or large investors. If I had to guess, I'd say someone who thought it would run up for whatever reason and has decided to give up. Could also be a vendor, employee or someone else paid in stock that has decided they don't want to hold it any longer. Not that it necessarily means anything, but there were a number of posters here and on Yahoo over the last couple of years who were very enthusiastic and have been completely absent recently. It could be one of them deciding to move on. Who knows.