That's no insider, that's the hedge fund Tontine's bitch. All you need to know about this purchase is in the second article in this link. Tontine Management is a hedge fund with lots of shares of home builders. This purchase was not his directly, but was Tontine's to prop up the HOV on the 12th.
yahoo won't allow the link for some reason, but type in this to the browser to get there. http colon slash slash www dot findprofit dot com slash saying dot php3