I had the exact same question, so I asked. The reply I got suggested that there was a blackout period in place. This is often in effect before (and maybe a few days after) earnings announcements. I would think that this should be lifted by now. However, it's possible that there may be some other insider information which would warrant continuing the blackout period (ie. if they are negotiating the sale of Vezza or something like that).
I would encourage others to inquire with NAP's investor relations and post the response.