Black out is generally 48 hours after a big announcement.... and an insider bought some last week or the week before so they were out of black out then.  But they may be in black out right now again for something else.  If they have any material undisclosed information they'll be blacked out.  I'm assuming since only one insider has bought they are in black out for something else or they don't want to risk their own money.  Eitherway, we won't know until its too late.