You can find three years of comparisons for 5%/insider holdings on Pg 59 of the FY2009 20F currently posted on the NTE website.
The two insiders I watch closely are M K. Koo who holds 5.2 mil shs (11.7%) and Peter Kellogg, who owns 5.8 mil shs or 13.0% of NTE common and who folded his firm into GS & Co a few years ago. There are 44.8 mil shs outstanding.
There has been some movement of holdings of other insiders over the past three years as shown in the 20F filing.
In addition, I believe the Kahn Group has acquired a small institutional holding of about 1.8 mil shares: